[ONOS-4616] grouping linker issues fixed and other defect fixed.

Change-Id: I1b23f9ed0293edbc2d551efe82982559eb916ede

@@ -225,9 +225,7 @@ public class YangDerivedInfo<T> implements LocationInfo {
      * @throws DataModelException a violation in data mode rule
      * @throws DataModelException a violation in data mode rule
      */
      */
     public ResolvableStatus resolve() throws DataModelException {
     public ResolvableStatus resolve() throws DataModelException {
-
         YangType<?> baseType = getReferredTypeDef().getTypeDefBaseType();
         YangType<?> baseType = getReferredTypeDef().getTypeDefBaseType();
-
         /*
         /*
          * Checks the data type of the referred typedef, if it's derived,
          * Checks the data type of the referred typedef, if it's derived,
          * obtain effective built-in type and restrictions from it's derived
          * obtain effective built-in type and restrictions from it's derived
@@ -240,7 +238,6 @@ public class YangDerivedInfo<T> implements LocationInfo {
             if (baseType.getResolvableStatus() != INTRA_FILE_RESOLVED && baseType.getResolvableStatus() != RESOLVED) {
             if (baseType.getResolvableStatus() != INTRA_FILE_RESOLVED && baseType.getResolvableStatus() != RESOLVED) {
                 throw new DataModelException("Linker Error: Referred typedef is not resolved for type.");
                 throw new DataModelException("Linker Error: Referred typedef is not resolved for type.");
             }
             }
-
             /*
             /*
              * Check if the referred typedef is intra file resolved, if yes sets
              * Check if the referred typedef is intra file resolved, if yes sets
              * current status also to intra file resolved .
              * current status also to intra file resolved .
@@ -250,7 +247,7 @@ public class YangDerivedInfo<T> implements LocationInfo {
             }
             }
             setEffectiveBuiltInType(((YangDerivedInfo<?>) baseType.getDataTypeExtendedInfo())
             setEffectiveBuiltInType(((YangDerivedInfo<?>) baseType.getDataTypeExtendedInfo())
                     .getEffectiveBuiltInType());
                     .getEffectiveBuiltInType());
-            YangDerivedInfo refDerivedInfo = ((YangDerivedInfo<?>) baseType.getDataTypeExtendedInfo());
+            YangDerivedInfo refDerivedInfo = (YangDerivedInfo<?>) baseType.getDataTypeExtendedInfo();
             /*
             /*
              * Check whether the effective built-in type can have range
              * Check whether the effective built-in type can have range
              * restrictions, if yes call resolution of range.
              * restrictions, if yes call resolution of range.
@@ -327,7 +324,7 @@ public class YangDerivedInfo<T> implements LocationInfo {
                 }
                 }
             }
             }
         } else {
         } else {
-            setEffectiveBuiltInType((baseType.getDataType()));
+            setEffectiveBuiltInType(baseType.getDataType());
             /*
             /*
              * Check whether the effective built-in type can have range
              * Check whether the effective built-in type can have range
              * restrictions, if yes call resolution of range.
              * restrictions, if yes call resolution of range.
@@ -404,7 +401,6 @@ public class YangDerivedInfo<T> implements LocationInfo {
                 }
                 }
             }
             }
         }
         }
-
         /*
         /*
          * Check if the data type is the one which can't be restricted, in
          * Check if the data type is the one which can't be restricted, in
          * this case check whether no self restrictions should be present.
          * this case check whether no self restrictions should be present.
@@ -418,7 +414,6 @@ public class YangDerivedInfo<T> implements LocationInfo {
                 throw new DataModelException("YANG file error: Restrictions can't be applied to a given type");
                 throw new DataModelException("YANG file error: Restrictions can't be applied to a given type");
             }
             }
         }
         }
-
         // Throw exception for unsupported types
         // Throw exception for unsupported types
         throw new DataModelException("Linker error: Unable to process the derived type.");
         throw new DataModelException("Linker error: Unable to process the derived type.");
     }
     }
@@ -438,7 +433,7 @@ public class YangDerivedInfo<T> implements LocationInfo {
          * Check that range restriction should be null when built-in type is
          * Check that range restriction should be null when built-in type is
          * string.
          * string.
          */
          */
-        if (!(Strings.isNullOrEmpty(getRangeRestrictionString()))) {
+        if (!Strings.isNullOrEmpty(getRangeRestrictionString())) {
             DataModelException dataModelException = new DataModelException("YANG file error: Range restriction " +
             DataModelException dataModelException = new DataModelException("YANG file error: Range restriction " +
                     "should't be present for string data type.");
                     "should't be present for string data type.");
             dataModelException.setLine(lineNumber);
             dataModelException.setLine(lineNumber);
@@ -605,7 +600,7 @@ public class YangDerivedInfo<T> implements LocationInfo {
          * Check that string restriction should be null when built-in type is
          * Check that string restriction should be null when built-in type is
          * of range type.
          * of range type.
          */
          */
-        if (!(Strings.isNullOrEmpty(getLengthRestrictionString())) || getPatternRestriction() != null) {
+        if (!Strings.isNullOrEmpty(getLengthRestrictionString()) || getPatternRestriction() != null) {
             DataModelException dataModelException = new DataModelException("YANG file error: Length/Pattern " +
             DataModelException dataModelException = new DataModelException("YANG file error: Length/Pattern " +
                     "restriction should't be present for int/uint/decimal data type.");
                     "restriction should't be present for int/uint/decimal data type.");
             dataModelException.setLine(lineNumber);
             dataModelException.setLine(lineNumber);
@@ -660,12 +655,12 @@ public class YangDerivedInfo<T> implements LocationInfo {
      * @return true, if data type can't be restricted, false otherwise
      * @return true, if data type can't be restricted, false otherwise
      */
      */
     private boolean isOfValidNonRestrictedType(YangDataTypes dataType) {
     private boolean isOfValidNonRestrictedType(YangDataTypes dataType) {
-        return (dataType == BOOLEAN
+        return dataType == BOOLEAN
                 || dataType == ENUMERATION
                 || dataType == ENUMERATION
                 || dataType == BITS
                 || dataType == BITS
                 || dataType == EMPTY
                 || dataType == EMPTY
                 || dataType == UNION
                 || dataType == UNION
                 || dataType == IDENTITYREF
                 || dataType == IDENTITYREF
-                || dataType == LEAFREF);
+                || dataType == LEAFREF;
     }
     }
 }
 }

@@ -50,7 +50,7 @@ import org.onosproject.yangutils.utils.YangConstructType;
 /**
 /**
  * Represents the ENUM data type information.
  * Represents the ENUM data type information.
  */
  */
-public class YangEnum implements YangCommonInfo, Parsable {
+public class YangEnum implements YangCommonInfo, Parsable, Comparable<YangEnum> {
 
 
     /**
     /**
      * Named value for the ENUM.
      * Named value for the ENUM.
@@ -226,4 +226,12 @@ public class YangEnum implements YangCommonInfo, Parsable {
     public void validateDataOnExit() throws DataModelException {
     public void validateDataOnExit() throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
         // TODO auto-generated method stub, to be implemented by parser
     }
     }
+
+    @Override
+    public int compareTo(YangEnum otherEnum) {
+        if (this.namedValue.equals(otherEnum.getNamedValue())) {
+            return 0;
+        }
+        return new Integer(this.value).compareTo(otherEnum.getValue());
+    }
 }
 }

@@ -16,8 +16,8 @@
 
 
 package org.onosproject.yangutils.datamodel;
 package org.onosproject.yangutils.datamodel;
 
 
-import java.util.HashSet;
-import java.util.Set;
+import java.util.SortedSet;
+import java.util.TreeSet;
 
 
 import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
 import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
 import org.onosproject.yangutils.parser.Parsable;
 import org.onosproject.yangutils.parser.Parsable;
@@ -31,10 +31,10 @@ import org.onosproject.yangutils.utils.YangConstructType;
 /**
 /**
  * Represents the enumeration data type information.
  * Represents the enumeration data type information.
  */
  */
-public class YangEnumeration extends YangNode implements Parsable {
+public class YangEnumeration extends YangNode implements Parsable, CollisionDetector {
 
 
     // Enumeration info set.
     // Enumeration info set.
-    private Set<YangEnum> enumSet;
+    private SortedSet<YangEnum> enumSet;
 
 
     // Enumeration name.
     // Enumeration name.
     private String name;
     private String name;
@@ -44,7 +44,7 @@ public class YangEnumeration extends YangNode implements Parsable {
      */
      */
     public YangEnumeration() {
     public YangEnumeration() {
         super(YangNodeType.ENUMERATION_NODE);
         super(YangNodeType.ENUMERATION_NODE);
-        setEnumSet(new HashSet<YangEnum>());
+        setEnumSet(new TreeSet<YangEnum>());
     }
     }
 
 
     /**
     /**
@@ -52,7 +52,7 @@ public class YangEnumeration extends YangNode implements Parsable {
      *
      *
      * @return the ENUM set
      * @return the ENUM set
      */
      */
-    public Set<YangEnum> getEnumSet() {
+    public SortedSet<YangEnum> getEnumSet() {
         return enumSet;
         return enumSet;
     }
     }
 
 
@@ -61,7 +61,7 @@ public class YangEnumeration extends YangNode implements Parsable {
      *
      *
      * @param enumSet the ENUM set to set
      * @param enumSet the ENUM set to set
      */
      */
-    private void setEnumSet(Set<YangEnum> enumSet) {
+    private void setEnumSet(SortedSet<YangEnum> enumSet) {
         this.enumSet = enumSet;
         this.enumSet = enumSet;
     }
     }
 
 
@@ -126,4 +126,18 @@ public class YangEnumeration extends YangNode implements Parsable {
     public void validateDataOnExit() throws DataModelException {
     public void validateDataOnExit() throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
         // TODO auto-generated method stub, to be implemented by parser
     }
     }
+
+    @Override
+    public void detectCollidingChild(String identifierName, YangConstructType dataType) throws DataModelException {
+        /*
+        Do nothing.The implementation for this is not required.
+         */
+    }
+
+    @Override
+    public void detectSelfCollision(String identifierName, YangConstructType dataType) throws DataModelException {
+        /*
+        Do nothing.The implementation for this is not required.
+         */
+    }
 }
 }

@@ -444,8 +444,8 @@ public class YangList extends YangNode
         validateConfig(leaves, leafLists);
         validateConfig(leaves, leafLists);
 
 
         /* A list must have atleast one key leaf if config is true */
         /* A list must have atleast one key leaf if config is true */
-        if (isConfig
-                && (keys == null || leaves == null && leafLists == null && !isUsesPresentInList())) {
+        if (isConfig && (keys == null || leaves == null && leafLists == null) && !isUsesPresentInList()
+                && !isListPresentInGrouping()) {
             throw new DataModelException("A list must have atleast one key leaf if config is true;");
             throw new DataModelException("A list must have atleast one key leaf if config is true;");
         } else if (keys != null) {
         } else if (keys != null) {
             validateKey(leaves, leafLists, keys);
             validateKey(leaves, leafLists, keys);
@@ -565,7 +565,7 @@ public class YangList extends YangNode
                 }
                 }
             }
             }
 
 
-            if (!leafFound && !isUsesPresentInList()) {
+            if (!leafFound && !isUsesPresentInList() && !isListPresentInGrouping()) {
                 throw new DataModelException("An identifier, in key, must refer to a child leaf of the list");
                 throw new DataModelException("An identifier, in key, must refer to a child leaf of the list");
             }
             }
             leafFound = false;
             leafFound = false;
@@ -617,6 +617,18 @@ public class YangList extends YangNode
             node = node.getNextSibling();
             node = node.getNextSibling();
         }
         }
         return false;
         return false;
+        // TODO When grouping linking is done this method has to be modified.
     }
     }
 
 
+    private boolean isListPresentInGrouping() {
+        YangNode node = this.getParent();
+        while (node != null) {
+            if (node instanceof YangGrouping) {
+                return true;
+            }
+            node = node.getParent();
+        }
+        return false;
+        // TODO When grouping linking is done this method has to be modified.
+    }
 }
 }

@@ -271,6 +271,7 @@ public class YangModule extends YangNode
      *
      *
      * @return the list of imported modules
      * @return the list of imported modules
      */
      */
+    @Override
     public List<YangImport> getImportList() {
     public List<YangImport> getImportList() {
         return importList;
         return importList;
     }
     }
@@ -280,6 +281,7 @@ public class YangModule extends YangNode
      *
      *
      * @param importedModule module being imported
      * @param importedModule module being imported
      */
      */
+    @Override
     public void addToImportList(YangImport importedModule) {
     public void addToImportList(YangImport importedModule) {
         getImportList().add(importedModule);
         getImportList().add(importedModule);
     }
     }
@@ -294,6 +296,7 @@ public class YangModule extends YangNode
      *
      *
      * @return the included list of sub modules
      * @return the included list of sub modules
      */
      */
+    @Override
     public List<YangInclude> getIncludeList() {
     public List<YangInclude> getIncludeList() {
         return includeList;
         return includeList;
     }
     }
@@ -303,6 +306,7 @@ public class YangModule extends YangNode
      *
      *
      * @param includeModule submodule being included
      * @param includeModule submodule being included
      */
      */
+    @Override
     public void addToIncludeList(YangInclude includeModule) {
     public void addToIncludeList(YangInclude includeModule) {
         getIncludeList().add(includeModule);
         getIncludeList().add(includeModule);
     }
     }
@@ -393,6 +397,7 @@ public class YangModule extends YangNode
      *
      *
      * @return the prefix
      * @return the prefix
      */
      */
+    @Override
     public String getPrefix() {
     public String getPrefix() {
         return prefix;
         return prefix;
     }
     }
@@ -402,6 +407,7 @@ public class YangModule extends YangNode
      *
      *
      * @param prefix the prefix to set
      * @param prefix the prefix to set
      */
      */
+    @Override
     public void setPrefix(String prefix) {
     public void setPrefix(String prefix) {
         this.prefix = prefix;
         this.prefix = prefix;
     }
     }

@@ -285,6 +285,7 @@ public class YangSubModule extends YangNode
      *
      *
      * @return the list of imported modules
      * @return the list of imported modules
      */
      */
+    @Override
     public List<YangImport> getImportList() {
     public List<YangImport> getImportList() {
         return importList;
         return importList;
     }
     }
@@ -294,6 +295,7 @@ public class YangSubModule extends YangNode
      *
      *
      * @param importedModule module being imported
      * @param importedModule module being imported
      */
      */
+    @Override
     public void addToImportList(YangImport importedModule) {
     public void addToImportList(YangImport importedModule) {
         getImportList().add(importedModule);
         getImportList().add(importedModule);
     }
     }
@@ -308,6 +310,7 @@ public class YangSubModule extends YangNode
      *
      *
      * @return the included list of sub modules
      * @return the included list of sub modules
      */
      */
+    @Override
     public List<YangInclude> getIncludeList() {
     public List<YangInclude> getIncludeList() {
         return includeList;
         return includeList;
     }
     }
@@ -317,6 +320,7 @@ public class YangSubModule extends YangNode
      *
      *
      * @param includeModule submodule being included
      * @param includeModule submodule being included
      */
      */
+    @Override
     public void addToIncludeList(YangInclude includeModule) {
     public void addToIncludeList(YangInclude includeModule) {
         getIncludeList().add(includeModule);
         getIncludeList().add(includeModule);
     }
     }

@@ -21,6 +21,8 @@ import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
 import org.onosproject.yangutils.parser.Parsable;
 import org.onosproject.yangutils.parser.Parsable;
 import org.onosproject.yangutils.utils.YangConstructType;
 import org.onosproject.yangutils.utils.YangConstructType;
 
 
+import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.detectCollidingChildUtil;
+
 /*-
 /*-
  * Reference RFC 6020.
  * Reference RFC 6020.
  *
  *
@@ -54,7 +56,7 @@ import org.onosproject.yangutils.utils.YangConstructType;
 /**
 /**
  * Represents data model node to maintain information defined in YANG typedef.
  * Represents data model node to maintain information defined in YANG typedef.
  */
  */
-public class YangTypeDef extends YangNode implements YangCommonInfo, Parsable, YangTypeHolder {
+public class YangTypeDef extends YangNode implements YangCommonInfo, Parsable, YangTypeHolder, CollisionDetector {
 
 
     /**
     /**
      * Default value in string, needs to be converted to the target object,
      * Default value in string, needs to be converted to the target object,
@@ -185,7 +187,7 @@ public class YangTypeDef extends YangNode implements YangCommonInfo, Parsable, Y
      * @return the data type
      * @return the data type
      */
      */
     public YangType<?> getTypeDefBaseType() {
     public YangType<?> getTypeDefBaseType() {
-        if (!(getTypeList().isEmpty())) {
+        if (!getTypeList().isEmpty()) {
             return getTypeList().get(0);
             return getTypeList().get(0);
         }
         }
         return null;
         return null;
@@ -272,4 +274,18 @@ public class YangTypeDef extends YangNode implements YangCommonInfo, Parsable, Y
     public List<YangType<?>> getTypeList() {
     public List<YangType<?>> getTypeList() {
         return typeList;
         return typeList;
     }
     }
+
+    @Override
+    public void detectCollidingChild(String identifierName, YangConstructType dataType) throws DataModelException {
+        // Asks helper to detect colliding child.
+        detectCollidingChildUtil(identifierName, dataType, this);
+    }
+
+    @Override
+    public void detectSelfCollision(String identifierName, YangConstructType dataType) throws DataModelException {
+        if (getName().equals(identifierName)) {
+            throw new DataModelException("YANG file error: Duplicate input identifier detected, same as typedef \""
+                    + getName() + "\"");
+        }
+    }
 }
 }

@@ -271,8 +271,8 @@ public class YangUses
         }
         }
 
 
         YangNode usesParentNode = getParentNodeInGenCode(this);
         YangNode usesParentNode = getParentNodeInGenCode(this);
-        if ((!(usesParentNode instanceof YangLeavesHolder))
-                || (!(usesParentNode instanceof CollisionDetector))) {
+        if (!(usesParentNode instanceof YangLeavesHolder)
+                || !(usesParentNode instanceof CollisionDetector)) {
             throw new LinkerException("Linker Exception: YANG uses holder construct is wrong");
             throw new LinkerException("Linker Exception: YANG uses holder construct is wrong");
         }
         }
 
 

@@ -65,8 +65,8 @@ public final class DataModelUtils {
             while (node != null) {
             while (node != null) {
                 Parsable parsable = (Parsable) node;
                 Parsable parsable = (Parsable) node;
                 if (node instanceof CollisionDetector
                 if (node instanceof CollisionDetector
-                        && (parsable.getYangConstructType() != YangConstructType.USES_DATA)
-                        && (parsable.getYangConstructType() != YangConstructType.GROUPING_DATA)) {
+                        && parsable.getYangConstructType() != YangConstructType.USES_DATA
+                        && parsable.getYangConstructType() != YangConstructType.GROUPING_DATA) {
                     ((CollisionDetector) node).detectSelfCollision(identifierName, dataType);
                     ((CollisionDetector) node).detectSelfCollision(identifierName, dataType);
                 }
                 }
                 node = node.getNextSibling();
                 node = node.getNextSibling();
@@ -90,7 +90,7 @@ public final class DataModelUtils {
         while (node != null) {
         while (node != null) {
             Parsable parsable = (Parsable) node;
             Parsable parsable = (Parsable) node;
             if (node instanceof CollisionDetector
             if (node instanceof CollisionDetector
-                    && (parsable.getYangConstructType() == dataType)) {
+                    && parsable.getYangConstructType() == dataType) {
                 ((CollisionDetector) node).detectSelfCollision(identifierName, dataType);
                 ((CollisionDetector) node).detectSelfCollision(identifierName, dataType);
             }
             }
             node = node.getNextSibling();
             node = node.getNextSibling();

@@ -34,6 +34,8 @@ import static org.onosproject.yangutils.linker.impl.ResolvableStatus.INTRA_FILE_
 import static org.onosproject.yangutils.linker.impl.ResolvableStatus.LINKED;
 import static org.onosproject.yangutils.linker.impl.ResolvableStatus.LINKED;
 import static org.onosproject.yangutils.linker.impl.ResolvableStatus.RESOLVED;
 import static org.onosproject.yangutils.linker.impl.ResolvableStatus.RESOLVED;
 import static org.onosproject.yangutils.linker.impl.ResolvableStatus.UNRESOLVED;
 import static org.onosproject.yangutils.linker.impl.ResolvableStatus.UNRESOLVED;
+import static org.onosproject.yangutils.utils.UtilConstants.TYPEDEF_LINKER_ERROR;
+import static org.onosproject.yangutils.utils.UtilConstants.GROUPING_LINKER_ERROR;
 
 
 /**
 /**
  * Represents resolution object which will be resolved by linker.
  * Represents resolution object which will be resolved by linker.
@@ -180,9 +182,14 @@ public class YangResolutionInfo<T> implements LocationInfo {
 
 
                         if (resolvable.getResolvableStatus() == UNRESOLVED) {
                         if (resolvable.getResolvableStatus() == UNRESOLVED) {
                             // If current entity is still not resolved, then linking/resolution has failed.
                             // If current entity is still not resolved, then linking/resolution has failed.
+                            String errorInfo;
+                            if (resolvable instanceof YangType) {
+                                errorInfo = TYPEDEF_LINKER_ERROR;
+                            } else {
+                                errorInfo = GROUPING_LINKER_ERROR;
+                            }
                             DataModelException dataModelException =
                             DataModelException dataModelException =
-                                    new DataModelException("YANG file error: Unable to find base "
-                                            + "typedef/grouping for given type/uses");
+                                    new DataModelException(errorInfo);
                             dataModelException.setLine(getLineNumber());
                             dataModelException.setLine(getLineNumber());
                             dataModelException.setCharPosition(getCharPosition());
                             dataModelException.setCharPosition(getCharPosition());
                             throw dataModelException;
                             throw dataModelException;
@@ -689,7 +696,7 @@ public class YangResolutionInfo<T> implements LocationInfo {
              * Check if prefix is null or not, to identify whether to search
              * Check if prefix is null or not, to identify whether to search
              * in import list or include list.
              * in import list or include list.
              */
              */
-            if (getRefPrefix() != null && !(getRefPrefix().contentEquals(getCurReferenceResolver().getPrefix()))) {
+            if (getRefPrefix() != null && !getRefPrefix().contentEquals(getCurReferenceResolver().getPrefix())) {
                 if (resolveWithImport()) {
                 if (resolveWithImport()) {
                     return;
                     return;
                 }
                 }

@@ -45,6 +45,8 @@ import org.onosproject.yangutils.datamodel.YangBits;
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangLeafList;
 import org.onosproject.yangutils.datamodel.YangLeafList;
 import org.onosproject.yangutils.datamodel.YangType;
 import org.onosproject.yangutils.datamodel.YangType;
+import org.onosproject.yangutils.datamodel.YangTypeDef;
+import org.onosproject.yangutils.datamodel.YangUnion;
 import org.onosproject.yangutils.parser.Parsable;
 import org.onosproject.yangutils.parser.Parsable;
 import org.onosproject.yangutils.parser.antlrgencode.GeneratedYangParser;
 import org.onosproject.yangutils.parser.antlrgencode.GeneratedYangParser;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
@@ -101,6 +103,12 @@ public final class BitsListener {
                 case LEAF_LIST_DATA:
                 case LEAF_LIST_DATA:
                     bitsNode.setBitsName(((YangLeafList) tmpData).getName());
                     bitsNode.setBitsName(((YangLeafList) tmpData).getName());
                     break;
                     break;
+                case TYPEDEF_DATA:
+                    bitsNode.setBitsName(((YangTypeDef) tmpData).getName());
+                    break;
+                case UNION_DATA:
+                    bitsNode.setBitsName(((YangUnion) tmpData).getName());
+                    break;
                 // TODO typedef, union, deviate.
                 // TODO typedef, union, deviate.
                 default:
                 default:
                     throw new ParserException(constructListenerErrorMessage(INVALID_HOLDER, TYPE_DATA,
                     throw new ParserException(constructListenerErrorMessage(INVALID_HOLDER, TYPE_DATA,

@@ -138,8 +138,8 @@ public final class EnumerationListener {
                      * integer number, this is done because under union there
                      * integer number, this is done because under union there
                      * could be multiple child union types.
                      * could be multiple child union types.
                      */
                      */
-                    enumerationNode.setName(yangUnion.getName() + yangUnion.getChildUnionNumber()
-                            + ENUMERATION_CLASS_SUFFIX);
+                    enumerationNode.setName(yangUnion.getName() + ENUMERATION_CLASS_SUFFIX
+                            + yangUnion.getChildUnionNumber());
                     // Increment the running number.
                     // Increment the running number.
                     yangUnion.setChildUnionNumber(yangUnion.getChildUnionNumber() + 1);
                     yangUnion.setChildUnionNumber(yangUnion.getChildUnionNumber() + 1);
                     // Add union as a child to parent union.
                     // Add union as a child to parent union.

@@ -106,7 +106,16 @@ public final class MaxElementsListener {
         if (value.equals(UNBOUNDED_KEYWORD)) {
         if (value.equals(UNBOUNDED_KEYWORD)) {
             maxElementsValue = Integer.MAX_VALUE;
             maxElementsValue = Integer.MAX_VALUE;
         } else if (value.matches(POSITIVE_INTEGER_PATTERN)) {
         } else if (value.matches(POSITIVE_INTEGER_PATTERN)) {
+            try {
                 maxElementsValue = Integer.parseInt(value);
                 maxElementsValue = Integer.parseInt(value);
+            } catch (NumberFormatException e) {
+                ParserException parserException = new ParserException("YANG file error : " +
+                        YangConstructType.getYangConstructType(MAX_ELEMENT_DATA) + " value " + value + " is not " +
+                        "valid.");
+                parserException.setLine(ctx.getStart().getLine());
+                parserException.setCharPosition(ctx.getStart().getCharPositionInLine());
+                throw parserException;
+            }
         } else {
         } else {
             ParserException parserException = new ParserException("YANG file error : " +
             ParserException parserException = new ParserException("YANG file error : " +
                     YangConstructType.getYangConstructType(MAX_ELEMENT_DATA) + " value " + value + " is not " +
                     YangConstructType.getYangConstructType(MAX_ELEMENT_DATA) + " value " + value + " is not " +

@@ -35,6 +35,7 @@ import org.onosproject.yangutils.parser.impl.TreeWalkListener;
 
 
 import static org.onosproject.yangutils.datamodel.utils.GeneratedLanguage.JAVA_GENERATION;
 import static org.onosproject.yangutils.datamodel.utils.GeneratedLanguage.JAVA_GENERATION;
 import static org.onosproject.yangutils.datamodel.utils.YangDataModelFactory.getYangTypeDefNode;
 import static org.onosproject.yangutils.datamodel.utils.YangDataModelFactory.getYangTypeDefNode;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerCollisionDetector.detectCollidingChildUtil;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.ENTRY;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.ENTRY;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.EXIT;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.EXIT;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructExtendedListenerErrorMessage;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructExtendedListenerErrorMessage;
@@ -117,6 +118,11 @@ public final class TypeDefListener {
         // Validate sub statement cardinality.
         // Validate sub statement cardinality.
         validateSubStatementsCardinality(ctx);
         validateSubStatementsCardinality(ctx);
 
 
+        // Check for identifier collision
+        int line = ctx.getStart().getLine();
+        int charPositionInLine = ctx.getStart().getCharPositionInLine();
+        detectCollidingChildUtil(listener, line, charPositionInLine, identifier, TYPEDEF_DATA);
+
         /*
         /*
          * Create a derived type information, the base type must be set in type
          * Create a derived type information, the base type must be set in type
          * listener.
          * listener.

@@ -34,12 +34,16 @@ import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.SLASH;
 import static org.onosproject.yangutils.utils.UtilConstants.SLASH;
 import static org.onosproject.yangutils.utils.UtilConstants.COLON;
 import static org.onosproject.yangutils.utils.UtilConstants.COLON;
 import static org.onosproject.yangutils.utils.UtilConstants.CARET;
 import static org.onosproject.yangutils.utils.UtilConstants.CARET;
+import static org.onosproject.yangutils.utils.UtilConstants.CURRENTLY_UNSUPPORTED;
 import static org.onosproject.yangutils.utils.UtilConstants.QUOTES;
 import static org.onosproject.yangutils.utils.UtilConstants.QUOTES;
 import static org.onosproject.yangutils.utils.UtilConstants.HYPHEN;
 import static org.onosproject.yangutils.utils.UtilConstants.HYPHEN;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.TRUE;
 import static org.onosproject.yangutils.utils.UtilConstants.TRUE;
 import static org.onosproject.yangutils.utils.UtilConstants.FALSE;
 import static org.onosproject.yangutils.utils.UtilConstants.FALSE;
 import static org.onosproject.yangutils.utils.UtilConstants.YANG_FILE_ERROR;
 import static org.onosproject.yangutils.utils.UtilConstants.YANG_FILE_ERROR;
+import static org.onosproject.yangutils.utils.UtilConstants.IDENTITYREF;
+import static org.onosproject.yangutils.utils.UtilConstants.LEAFREF;
+import static org.onosproject.yangutils.utils.UtilConstants.INSTANCE_IDENTIFIER;
 
 
 /**
 /**
  * Represents an utility for listener.
  * Represents an utility for listener.
@@ -50,6 +54,7 @@ public final class ListenerUtil {
     private static final String DATE_PATTERN = "[0-9]{4}-([0-9]{2}|[0-9])-([0-9]{2}|[0-9])";
     private static final String DATE_PATTERN = "[0-9]{4}-([0-9]{2}|[0-9])-([0-9]{2}|[0-9])";
     private static final String NON_NEGATIVE_INTEGER_PATTERN = "[0-9]+";
     private static final String NON_NEGATIVE_INTEGER_PATTERN = "[0-9]+";
     private static final Pattern INTEGER_PATTERN = Pattern.compile("[-][0-9]+|[0-9]+");
     private static final Pattern INTEGER_PATTERN = Pattern.compile("[-][0-9]+|[0-9]+");
+    private static final String XML = "xml";
     private static final String ONE = "1";
     private static final String ONE = "1";
     private static final int IDENTIFIER_LENGTH = 64;
     private static final int IDENTIFIER_LENGTH = 64;
     private static final String DATE_FORMAT = "yyyy-MM-dd";
     private static final String DATE_FORMAT = "yyyy-MM-dd";
@@ -98,6 +103,10 @@ public final class ListenerUtil {
             parserException = new ParserException("YANG file error : " +
             parserException = new ParserException("YANG file error : " +
                     YangConstructType.getYangConstructType(yangConstruct) + " name " + identifierString + " is not " +
                     YangConstructType.getYangConstructType(yangConstruct) + " name " + identifierString + " is not " +
                     "valid.");
                     "valid.");
+        } else if (identifierString.toLowerCase().startsWith(XML)) {
+            parserException = new ParserException("YANG file error : " +
+                    YangConstructType.getYangConstructType(yangConstruct) + " identifier " + identifierString +
+                    " must not start with (('X'|'x') ('M'|'m') ('L'|'l')).");
         } else {
         } else {
             return identifierString;
             return identifierString;
         }
         }
@@ -171,7 +180,18 @@ public final class ListenerUtil {
             throw parserException;
             throw parserException;
         }
         }
 
 
-        return Integer.parseInt(value);
+        int valueInInteger;
+        try {
+            valueInInteger = Integer.parseInt(value);
+        } catch (NumberFormatException e) {
+            ParserException parserException = new ParserException("YANG file error : " +
+                    YangConstructType.getYangConstructType(yangConstruct) + " value " + value + " is not " +
+                    "valid.");
+            parserException.setLine(ctx.getStart().getLine());
+            parserException.setCharPosition(ctx.getStart().getCharPositionInLine());
+            throw parserException;
+        }
+        return valueInInteger;
     }
     }
 
 
     /**
     /**
@@ -263,6 +283,7 @@ public final class ListenerUtil {
         String[] tmpData = tmpIdentifierString.split(Pattern.quote(COLON));
         String[] tmpData = tmpIdentifierString.split(Pattern.quote(COLON));
         if (tmpData.length == 1) {
         if (tmpData.length == 1) {
             YangNodeIdentifier nodeIdentifier = new YangNodeIdentifier();
             YangNodeIdentifier nodeIdentifier = new YangNodeIdentifier();
+            checkForUnsupportedTypes(tmpData[0], yangConstruct, ctx);
             nodeIdentifier.setName(getValidIdentifier(tmpData[0], yangConstruct, ctx));
             nodeIdentifier.setName(getValidIdentifier(tmpData[0], yangConstruct, ctx));
             return nodeIdentifier;
             return nodeIdentifier;
         } else if (tmpData.length == 2) {
         } else if (tmpData.length == 2) {
@@ -281,6 +302,30 @@ public final class ListenerUtil {
     }
     }
 
 
     /**
     /**
+     * Checks whether the type is an unsupported type.
+     *
+     * @param typeName name of the type
+     * @param yangConstruct yang construct to check if it is type
+     * @param ctx yang construct's context to get the line number and character position
+     */
+    private static void checkForUnsupportedTypes(String typeName,
+            YangConstructType yangConstruct, ParserRuleContext ctx) {
+
+        if (yangConstruct == YangConstructType.TYPE_DATA) {
+            if (typeName.equalsIgnoreCase(LEAFREF)) {
+                handleUnsupportedYangConstruct(YangConstructType.LEAFREF_DATA,
+                        ctx, CURRENTLY_UNSUPPORTED);
+            } else if (typeName.equalsIgnoreCase(IDENTITYREF)) {
+                handleUnsupportedYangConstruct(YangConstructType.IDENTITYREF_DATA,
+                        ctx, CURRENTLY_UNSUPPORTED);
+            } else if (typeName.equalsIgnoreCase(INSTANCE_IDENTIFIER)) {
+                handleUnsupportedYangConstruct(YangConstructType.INSTANCE_IDENTIFIER_DATA,
+                        ctx, CURRENTLY_UNSUPPORTED);
+            }
+        }
+    }
+
+    /**
      * Checks and return valid absolute schema node id.
      * Checks and return valid absolute schema node id.
      *
      *
      * @param argumentString string from yang file
      * @param argumentString string from yang file

@@ -21,6 +21,7 @@ import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Iterator;
 import java.util.List;
 import java.util.List;
 import java.util.Set;
 import java.util.Set;
+
 import org.apache.maven.plugin.AbstractMojo;
 import org.apache.maven.plugin.AbstractMojo;
 import org.apache.maven.plugin.MojoExecutionException;
 import org.apache.maven.plugin.MojoExecutionException;
 import org.apache.maven.plugin.MojoFailureException;
 import org.apache.maven.plugin.MojoFailureException;
@@ -35,7 +36,6 @@ import org.onosproject.yangutils.linker.impl.YangLinkerManager;
 import org.onosproject.yangutils.parser.YangUtilsParser;
 import org.onosproject.yangutils.parser.YangUtilsParser;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
 import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
-import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
 import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
 import org.onosproject.yangutils.utils.io.impl.YangFileScanner;
 import org.onosproject.yangutils.utils.io.impl.YangFileScanner;
@@ -69,6 +69,7 @@ public class YangUtilManager extends AbstractMojo {
     private Set<YangFileInfo> yangFileInfoSet = new HashSet<>();
     private Set<YangFileInfo> yangFileInfoSet = new HashSet<>();
     private YangUtilsParser yangUtilsParser = new YangUtilsParserManager();
     private YangUtilsParser yangUtilsParser = new YangUtilsParserManager();
     private YangLinker yangLinker = new YangLinkerManager();
     private YangLinker yangLinker = new YangLinkerManager();
+    private YangFileInfo curYangFileInfo = new YangFileInfo();
 
 
     private static final String DEFAULT_PKG = SLASH + getPackageDirPathFromJavaJPackage(DEFAULT_BASE_PKG);
     private static final String DEFAULT_PKG = SLASH + getPackageDirPathFromJavaJPackage(DEFAULT_BASE_PKG);
 
 
@@ -121,6 +122,12 @@ public class YangUtilManager extends AbstractMojo {
     private String replacementForHyphen;
     private String replacementForHyphen;
 
 
     /**
     /**
+     * Prefix which is required for adding with the identifier.
+     */
+    @Parameter(property = "prefixForIdentifier")
+    private String prefixForIdentifier;
+
+    /**
      * Build context.
      * Build context.
      */
      */
     @Component
     @Component
@@ -145,6 +152,7 @@ public class YangUtilManager extends AbstractMojo {
             conflictResolver.setReplacementForPeriod(replacementForPeriod);
             conflictResolver.setReplacementForPeriod(replacementForPeriod);
             conflictResolver.setReplacementForHyphen(replacementForHyphen);
             conflictResolver.setReplacementForHyphen(replacementForHyphen);
             conflictResolver.setReplacementForUnderscore(replacementForUnderscore);
             conflictResolver.setReplacementForUnderscore(replacementForUnderscore);
+            conflictResolver.setPrefixForIdentifier(prefixForIdentifier);
             YangPluginConfig yangPlugin = new YangPluginConfig();
             YangPluginConfig yangPlugin = new YangPluginConfig();
             yangPlugin.setCodeGenDir(codeGenDir);
             yangPlugin.setCodeGenDir(codeGenDir);
             yangPlugin.setConflictResolver(conflictResolver);
             yangPlugin.setConflictResolver(conflictResolver);
@@ -161,7 +169,7 @@ public class YangUtilManager extends AbstractMojo {
                 return;
                 return;
             }
             }
 
 
-            //Carry out the parsing for all the YANG files.
+            // Carry out the parsing for all the YANG files.
             parseYangFileInfoSet();
             parseYangFileInfoSet();
 
 
             // Resolve dependencies using linker.
             // Resolve dependencies using linker.
@@ -170,13 +178,13 @@ public class YangUtilManager extends AbstractMojo {
             // Perform translation to JAVA.
             // Perform translation to JAVA.
             translateToJava(getYangFileInfoSet(), yangPlugin);
             translateToJava(getYangFileInfoSet(), yangPlugin);
 
 
-            addToSource(getDirectory(baseDir, genFilesDir) + DEFAULT_PKG, project, context);
+            addToSource(getDirectory(baseDir, genFilesDir), project, context);
 
 
             copyYangFilesToTarget(getYangFileInfoSet(), getDirectory(baseDir, outputDirectory), project);
             copyYangFilesToTarget(getYangFileInfoSet(), getDirectory(baseDir, outputDirectory), project);
-        } catch (Exception e) {
+        } catch (IOException | ParserException e) {
             String fileName = "";
             String fileName = "";
-            if (e instanceof TranslatorException) {
-                fileName = ((TranslatorException) e).getFileName();
+            if (getCurYangFileInfo() != null) {
+                fileName = getCurYangFileInfo().getYangFileName();
             }
             }
             try {
             try {
                 translatorErrorHandler(getRootNode());
                 translatorErrorHandler(getRootNode());
@@ -198,6 +206,7 @@ public class YangUtilManager extends AbstractMojo {
      */
      */
     public void resolveDependenciesUsingLinker() throws MojoExecutionException {
     public void resolveDependenciesUsingLinker() throws MojoExecutionException {
         for (YangFileInfo yangFileInfo : getYangFileInfoSet()) {
         for (YangFileInfo yangFileInfo : getYangFileInfoSet()) {
+            setCurYangFileInfo(yangFileInfo);
             try {
             try {
                 yangLinker.resolveDependencies(getYangFileInfoSet());
                 yangLinker.resolveDependencies(getYangFileInfoSet());
             } catch (LinkerException e) {
             } catch (LinkerException e) {
@@ -213,6 +222,7 @@ public class YangUtilManager extends AbstractMojo {
      */
      */
     public void parseYangFileInfoSet() throws IOException {
     public void parseYangFileInfoSet() throws IOException {
         for (YangFileInfo yangFileInfo : getYangFileInfoSet()) {
         for (YangFileInfo yangFileInfo : getYangFileInfoSet()) {
+            setCurYangFileInfo(yangFileInfo);
             try {
             try {
                 YangNode yangNode = yangUtilsParser.getDataModel(yangFileInfo.getYangFileName());
                 YangNode yangNode = yangUtilsParser.getDataModel(yangFileInfo.getYangFileName());
                 yangFileInfo.setRootNode(yangNode);
                 yangFileInfo.setRootNode(yangNode);
@@ -264,7 +274,8 @@ public class YangUtilManager extends AbstractMojo {
         Iterator<YangFileInfo> yangFileIterator = yangFileInfoSet.iterator();
         Iterator<YangFileInfo> yangFileIterator = yangFileInfoSet.iterator();
         while (yangFileIterator.hasNext()) {
         while (yangFileIterator.hasNext()) {
             YangFileInfo yangFileInfo = yangFileIterator.next();
             YangFileInfo yangFileInfo = yangFileIterator.next();
-            generateJavaCode(yangFileInfo.getRootNode(), yangPlugin, yangFileInfo.getYangFileName());
+            setCurYangFileInfo(yangFileInfo);
+            generateJavaCode(yangFileInfo.getRootNode(), yangPlugin);
         }
         }
     }
     }
 
 
@@ -298,4 +309,22 @@ public class YangUtilManager extends AbstractMojo {
     public void setYangFileInfoSet(Set<YangFileInfo> yangFileInfoSet) {
     public void setYangFileInfoSet(Set<YangFileInfo> yangFileInfoSet) {
         this.yangFileInfoSet = yangFileInfoSet;
         this.yangFileInfoSet = yangFileInfoSet;
     }
     }
+
+    /**
+     * Returns current YANG file's info.
+     *
+     * @return the yangFileInfo
+     */
+    public YangFileInfo getCurYangFileInfo() {
+        return curYangFileInfo;
+    }
+
+    /**
+     * Sets current YANG file's info.
+     *
+     * @param yangFileInfo the yangFileInfo to set
+     */
+    public void setCurYangFileInfo(YangFileInfo yangFileInfo) {
+        this.curYangFileInfo = yangFileInfo;
+    }
 }
 }

@@ -84,6 +84,11 @@ public final class GeneratedJavaFileType {
     public static final int GENERATE_EVENT_LISTENER_INTERFACE = 512;
     public static final int GENERATE_EVENT_LISTENER_INTERFACE = 512;
 
 
     /**
     /**
+     * Event listener class.
+     */
+    public static final int GENERATE_EVENT_SUBJECT_CLASS = 1024;
+
+    /**
      * Creates an instance of generate java file type.
      * Creates an instance of generate java file type.
      */
      */
     private GeneratedJavaFileType() {
     private GeneratedJavaFileType() {

@@ -97,6 +97,31 @@ public final class GeneratedTempFileType {
     public static final int RPC_IMPL_MASK = 16384;
     public static final int RPC_IMPL_MASK = 16384;
 
 
     /**
     /**
+     * Event enum implementation of class.
+     */
+    public static final int EVENT_ENUM_MASK = 32768;
+
+    /**
+     * Event method implementation of class.
+     */
+    public static final int EVENT_METHOD_MASK = 65536;
+
+    /**
+     * Event subject attribute implementation of class.
+     */
+    public static final int EVENT_SUBJECT_ATTRIBUTE_MASK = 131072;
+
+    /**
+     * Event subject getter implementation of class.
+     */
+    public static final int EVENT_SUBJECT_GETTER_MASK = 262144;
+
+    /**
+     * Event subject setter implementation of class.
+     */
+    public static final int EVENT_SUBJECT_SETTER_MASK = 524288;
+
+    /**
      * Creates an instance of generated temp file type.
      * Creates an instance of generated temp file type.
      */
      */
     private GeneratedTempFileType() {
     private GeneratedTempFileType() {

@@ -66,11 +66,10 @@ public final class JavaCodeGeneratorUtil {
      *
      *
      * @param rootNode root node of the data model tree
      * @param rootNode root node of the data model tree
      * @param yangPlugin YANG plugin config
      * @param yangPlugin YANG plugin config
-     * @param fileName YANG file name
      * @throws TranslatorException when fails to generate java code file the current
      * @throws TranslatorException when fails to generate java code file the current
      *                     node
      *                     node
      */
      */
-    public static void generateJavaCode(YangNode rootNode, YangPluginConfig yangPlugin, String fileName)
+    public static void generateJavaCode(YangNode rootNode, YangPluginConfig yangPlugin)
             throws TranslatorException {
             throws TranslatorException {
 
 
         YangNode codeGenNode = rootNode;
         YangNode codeGenNode = rootNode;
@@ -78,33 +77,18 @@ public final class JavaCodeGeneratorUtil {
 
 
         while (codeGenNode != null) {
         while (codeGenNode != null) {
             if (curTraversal != PARENT) {
             if (curTraversal != PARENT) {
-                if (codeGenNode instanceof JavaCodeGenerator) {
                 setCurNode(codeGenNode);
                 setCurNode(codeGenNode);
-                    generateCodeEntry(codeGenNode, yangPlugin, fileName);
-                } else {
-                    /*
-                     * For grouping and uses, there is no code generation, skip the generation for the child.
-                     */
-                    if (codeGenNode.getNextSibling() != null) {
-                        curTraversal = SIBILING;
-                        codeGenNode = codeGenNode.getNextSibling();
-                    } else {
-                        curTraversal = PARENT;
-                        codeGenNode = codeGenNode.getParent();
-                    }
-                    continue;
-                }
-
+                generateCodeEntry(codeGenNode, yangPlugin);
             }
             }
             if (curTraversal != PARENT && codeGenNode.getChild() != null) {
             if (curTraversal != PARENT && codeGenNode.getChild() != null) {
                 curTraversal = CHILD;
                 curTraversal = CHILD;
                 codeGenNode = codeGenNode.getChild();
                 codeGenNode = codeGenNode.getChild();
             } else if (codeGenNode.getNextSibling() != null) {
             } else if (codeGenNode.getNextSibling() != null) {
-                generateCodeExit(codeGenNode, fileName);
+                generateCodeExit(codeGenNode);
                 curTraversal = SIBILING;
                 curTraversal = SIBILING;
                 codeGenNode = codeGenNode.getNextSibling();
                 codeGenNode = codeGenNode.getNextSibling();
             } else {
             } else {
-                generateCodeExit(codeGenNode, fileName);
+                generateCodeExit(codeGenNode);
                 curTraversal = PARENT;
                 curTraversal = PARENT;
                 codeGenNode = codeGenNode.getParent();
                 codeGenNode = codeGenNode.getParent();
             }
             }
@@ -117,20 +101,17 @@ public final class JavaCodeGeneratorUtil {
      * @param codeGenNode current data model node for which the code needs to be
      * @param codeGenNode current data model node for which the code needs to be
      * generated
      * generated
      * @param yangPlugin YANG plugin config
      * @param yangPlugin YANG plugin config
-     * @param fileName YANG file name
      * @throws TranslatorException when fails to generate java code file the current
      * @throws TranslatorException when fails to generate java code file the current
      *                     node
      *                     node
      */
      */
-    private static void generateCodeEntry(YangNode codeGenNode, YangPluginConfig yangPlugin, String fileName)
+    private static void generateCodeEntry(YangNode codeGenNode, YangPluginConfig yangPlugin)
             throws TranslatorException {
             throws TranslatorException {
 
 
         if (codeGenNode instanceof JavaCodeGenerator) {
         if (codeGenNode instanceof JavaCodeGenerator) {
             ((JavaCodeGenerator) codeGenNode).generateCodeEntry(yangPlugin);
             ((JavaCodeGenerator) codeGenNode).generateCodeEntry(yangPlugin);
         } else {
         } else {
-            TranslatorException ex = new TranslatorException(
+            throw new TranslatorException(
                     "Generated data model node cannot be translated to target language code");
                     "Generated data model node cannot be translated to target language code");
-            ex.setFileName(fileName);
-            throw ex;
         }
         }
     }
     }
 
 
@@ -139,19 +120,16 @@ public final class JavaCodeGeneratorUtil {
      *
      *
      * @param codeGenNode current data model node for which the code needs to be
      * @param codeGenNode current data model node for which the code needs to be
      * generated
      * generated
-     * @param fileName YANG file name
      * @throws TranslatorException when fails to generate java code file the current
      * @throws TranslatorException when fails to generate java code file the current
      *                     node
      *                     node
      */
      */
-    private static void generateCodeExit(YangNode codeGenNode, String fileName) throws TranslatorException {
+    private static void generateCodeExit(YangNode codeGenNode) throws TranslatorException {
 
 
         if (codeGenNode instanceof JavaCodeGenerator) {
         if (codeGenNode instanceof JavaCodeGenerator) {
             ((JavaCodeGenerator) codeGenNode).generateCodeExit();
             ((JavaCodeGenerator) codeGenNode).generateCodeExit();
         } else {
         } else {
-            TranslatorException ex = new TranslatorException(
+            throw new TranslatorException(
                     "Generated data model node cannot be translated to target language code");
                     "Generated data model node cannot be translated to target language code");
-            ex.setFileName(fileName);
-            throw ex;
         }
         }
     }
     }
 
 
@@ -162,6 +140,7 @@ public final class JavaCodeGeneratorUtil {
     private static void freeRestResources() {
     private static void freeRestResources() {
 
 
         YangNode freedNode = getCurNode();
         YangNode freedNode = getCurNode();
+        if (getCurNode() != null) {
             YangNode tempNode = freedNode;
             YangNode tempNode = freedNode;
             TraversalType curTraversal = ROOT;
             TraversalType curTraversal = ROOT;
 
 
@@ -185,6 +164,7 @@ public final class JavaCodeGeneratorUtil {
                 }
                 }
             }
             }
         }
         }
+    }
 
 
     /**
     /**
      * Free the current node.
      * Free the current node.
@@ -213,6 +193,7 @@ public final class JavaCodeGeneratorUtil {
     public static void translatorErrorHandler(YangNode rootNode)
     public static void translatorErrorHandler(YangNode rootNode)
             throws IOException {
             throws IOException {
 
 
+        if (rootNode != null) {
             /**
             /**
              * Free other resources where translator has failed.
              * Free other resources where translator has failed.
              */
              */
@@ -244,6 +225,7 @@ public final class JavaCodeGeneratorUtil {
 
 
             freeRestResources();
             freeRestResources();
         }
         }
+    }
 
 
     /**
     /**
      * Closes all the current open file handles of node and delete all generated
      * Closes all the current open file handles of node and delete all generated
@@ -254,8 +236,8 @@ public final class JavaCodeGeneratorUtil {
      */
      */
     private static void close(YangNode node)
     private static void close(YangNode node)
             throws IOException {
             throws IOException {
-
-        if (((TempJavaCodeFragmentFilesContainer) node).getTempJavaCodeFragmentFiles() != null) {
+        if (node instanceof JavaCodeGenerator && ((TempJavaCodeFragmentFilesContainer) node)
+                .getTempJavaCodeFragmentFiles() != null) {
             ((TempJavaCodeFragmentFilesContainer) node).getTempJavaCodeFragmentFiles().freeTemporaryResources(true);
             ((TempJavaCodeFragmentFilesContainer) node).getTempJavaCodeFragmentFiles().freeTemporaryResources(true);
         }
         }
     }
     }

@@ -16,6 +16,8 @@
 
 
 package org.onosproject.yangutils.translator.tojava;
 package org.onosproject.yangutils.translator.tojava;
 
 
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+
 /**
 /**
  * Represents cached java file handle, which supports the addition of member attributes and
  * Represents cached java file handle, which supports the addition of member attributes and
  * methods.
  * methods.
@@ -49,6 +51,11 @@ public class JavaFileInfo {
     private String codeGenDirFilePath;
     private String codeGenDirFilePath;
 
 
     /**
     /**
+     * Plugin configuration for naming convention.
+     */
+    private YangPluginConfig pluginConfig;
+
+    /**
      * Returns the types of files being generated corresponding to the YANG
      * Returns the types of files being generated corresponding to the YANG
      * definition.
      * definition.
      *
      *
@@ -152,4 +159,22 @@ public class JavaFileInfo {
     public void setBaseCodeGenPath(String path) {
     public void setBaseCodeGenPath(String path) {
         codeGenDirFilePath = path;
         codeGenDirFilePath = path;
     }
     }
+
+    /**
+     * Returns plugin configurations.
+     *
+     * @return the pluginConfig
+     */
+    public YangPluginConfig getPluginConfig() {
+        return pluginConfig;
+    }
+
+    /**
+     * Sets plugin configurations.
+     *
+     * @param pluginConfig the pluginConfig to set
+     */
+    public void setPluginConfig(YangPluginConfig pluginConfig) {
+        this.pluginConfig = pluginConfig;
+    }
 }
 }

@@ -22,12 +22,14 @@ import java.util.TreeSet;
 
 
 import static java.util.Collections.sort;
 import static java.util.Collections.sort;
 
 
+import static org.onosproject.yangutils.utils.UtilConstants.ABSTRACT_EVENT;
 import static org.onosproject.yangutils.utils.UtilConstants.ARRAY_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.ARRAY_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION_HOLDER_CLASS_IMPORT_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION_HOLDER_CLASS_IMPORT_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED_INFO_CLASS_IMPORT_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED_INFO_CLASS_IMPORT_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED_INFO_CLASS_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED_INFO_CLASS_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.COLLECTION_IMPORTS;
 import static org.onosproject.yangutils.utils.UtilConstants.COLLECTION_IMPORTS;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.EVENT_LISTENER;
 import static org.onosproject.yangutils.utils.UtilConstants.GOOGLE_MORE_OBJECT_IMPORT_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.GOOGLE_MORE_OBJECT_IMPORT_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.GOOGLE_MORE_OBJECT_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.GOOGLE_MORE_OBJECT_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPORT;
@@ -35,10 +37,10 @@ import static org.onosproject.yangutils.utils.UtilConstants.JAVA_LANG;
 import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_OBJECTS_IMPORT_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_OBJECTS_IMPORT_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_OBJECTS_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_OBJECTS_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.LIST;
-import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_REG;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_REG;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
+import static org.onosproject.yangutils.utils.UtilConstants.ONOS_EVENT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.PROVIDED_AUGMENTATION_CLASS_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.PROVIDED_AUGMENTATION_CLASS_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
@@ -218,7 +220,7 @@ public class JavaImportData {
      * @return import string for ListenerService class
      * @return import string for ListenerService class
      */
      */
     public String getListenerServiceImport() {
     public String getListenerServiceImport() {
-        return IMPORT + LISTENER_PKG + PERIOD + LISTENER_SERVICE + SEMI_COLAN + NEW_LINE;
+        return IMPORT + ONOS_EVENT_PKG + PERIOD + LISTENER_SERVICE + SEMI_COLAN + NEW_LINE;
     }
     }
 
 
     /**
     /**
@@ -227,6 +229,24 @@ public class JavaImportData {
      * @return import string for ListenerRegistry class
      * @return import string for ListenerRegistry class
      */
      */
     public String getListenerRegistryImport() {
     public String getListenerRegistryImport() {
-        return IMPORT + LISTENER_PKG + PERIOD + LISTENER_REG + SEMI_COLAN + NEW_LINE;
+        return IMPORT + ONOS_EVENT_PKG + PERIOD + LISTENER_REG + SEMI_COLAN + NEW_LINE;
+    }
+
+    /**
+     * Returns import string for AbstractEvent class.
+     *
+     * @return import string for AbstractEvent class
+     */
+    public String getAbstractEventsImport() {
+        return IMPORT + ONOS_EVENT_PKG + PERIOD + ABSTRACT_EVENT + SEMI_COLAN + NEW_LINE;
+    }
+
+    /**
+     * Returns import string for EventListener class.
+     *
+     * @return import string for EventListener class
+     */
+    public String getEventListenerImport() {
+        return IMPORT + ONOS_EVENT_PKG + PERIOD + EVENT_LISTENER + SEMI_COLAN + NEW_LINE;
     }
     }
 }
 }

@@ -22,6 +22,7 @@ import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.javamodel.JavaLeafInfoContainer;
 import org.onosproject.yangutils.translator.tojava.javamodel.JavaLeafInfoContainer;
 import org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType;
 import org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType;
+import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
 
 
 import com.google.common.base.MoreObjects;
 import com.google.common.base.MoreObjects;
 
 
@@ -88,7 +89,7 @@ public class JavaQualifiedTypeInfo
     /**
     /**
      * Updates the leaf's java information.
      * Updates the leaf's java information.
      *
      *
-     * @param leaf leaf whose jave information is being updated
+     * @param leaf leaf whose java information is being updated
      */
      */
     public static void updateLeavesJavaQualifiedInfo(JavaLeafInfoContainer leaf) {
     public static void updateLeavesJavaQualifiedInfo(JavaLeafInfoContainer leaf) {
 
 
@@ -102,7 +103,8 @@ public class JavaQualifiedTypeInfo
          * Current leaves holder is adding a leaf info as a attribute to the
          * Current leaves holder is adding a leaf info as a attribute to the
          * current class.
          * current class.
          */
          */
-        String className = AttributesJavaDataType.getJavaImportClass(leaf.getDataType(), leaf.isLeafList());
+        String className = AttributesJavaDataType.getJavaImportClass(leaf.getDataType(), leaf.isLeafList(),
+                leaf.getConflictResolveConfig());
         if (className != null) {
         if (className != null) {
             /*
             /*
              * Corresponding to the attribute type a class needs to be imported,
              * Corresponding to the attribute type a class needs to be imported,
@@ -110,7 +112,7 @@ public class JavaQualifiedTypeInfo
              */
              */
             importInfo.setClassInfo(className);
             importInfo.setClassInfo(className);
             String classPkg = AttributesJavaDataType.getJavaImportPackage(leaf.getDataType(),
             String classPkg = AttributesJavaDataType.getJavaImportPackage(leaf.getDataType(),
-                    leaf.isLeafList(), className);
+                    leaf.isLeafList(), leaf.getConflictResolveConfig());
             if (classPkg == null) {
             if (classPkg == null) {
                 throw new TranslatorException("import package cannot be null when the class is used");
                 throw new TranslatorException("import package cannot be null when the class is used");
             }
             }
@@ -163,19 +165,22 @@ public class JavaQualifiedTypeInfo
      * Returns the java qualified type information for the wrapper classes.
      * Returns the java qualified type information for the wrapper classes.
      *
      *
      * @param referredTypesAttrInfo attribute of referred type
      * @param referredTypesAttrInfo attribute of referred type
+     * @param conflictResolver plugin configurations
      * @return return the import info for this attribute
      * @return return the import info for this attribute
      */
      */
-    public static JavaQualifiedTypeInfo getQualifiedInfoOfFromString(JavaAttributeInfo referredTypesAttrInfo) {
+    public static JavaQualifiedTypeInfo getQualifiedInfoOfFromString(JavaAttributeInfo referredTypesAttrInfo,
+            YangToJavaNamingConflictUtil conflictResolver) {
 
 
         /*
         /*
          * Get the java qualified type information for the wrapper classes and
          * Get the java qualified type information for the wrapper classes and
          * set it in new java attribute information.
          * set it in new java attribute information.
          */
          */
         JavaQualifiedTypeInfo qualifiedInfoOfFromString = new JavaQualifiedTypeInfo();
         JavaQualifiedTypeInfo qualifiedInfoOfFromString = new JavaQualifiedTypeInfo();
+
         qualifiedInfoOfFromString.setClassInfo(
         qualifiedInfoOfFromString.setClassInfo(
-                getJavaImportClass(referredTypesAttrInfo.getAttributeType(), true));
+                getJavaImportClass(referredTypesAttrInfo.getAttributeType(), true, conflictResolver));
         qualifiedInfoOfFromString.setPkgInfo(
         qualifiedInfoOfFromString.setPkgInfo(
-                getJavaImportPackage(referredTypesAttrInfo.getAttributeType(), true, null));
+                getJavaImportPackage(referredTypesAttrInfo.getAttributeType(), true, conflictResolver));
         return qualifiedInfoOfFromString;
         return qualifiedInfoOfFromString;
     }
     }
 
 

@@ -19,6 +19,8 @@ package org.onosproject.yangutils.translator.tojava;
 import java.io.File;
 import java.io.File;
 import java.io.IOException;
 import java.io.IOException;
 
 
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getConstructor;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getConstructor;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.closeFile;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.closeFile;
@@ -84,10 +86,10 @@ public class TempJavaBeanFragmentFiles
      * @param attr attribute info
      * @param attr attribute info
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    private void addConstructor(JavaAttributeInfo attr)
+    private void addConstructor(JavaAttributeInfo attr, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         appendToFile(getConstructorImplTempFileHandle(), getConstructor(getGeneratedJavaClassName(), attr,
         appendToFile(getConstructorImplTempFileHandle(), getConstructor(getGeneratedJavaClassName(), attr,
-                getGeneratedJavaFiles()));
+                getGeneratedJavaFiles(), pluginConfig));
     }
     }
 
 
     /**
     /**
@@ -98,10 +100,10 @@ public class TempJavaBeanFragmentFiles
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
     @Override
     @Override
-    void addJavaSnippetInfoToApplicableTempFiles(JavaAttributeInfo newAttrInfo)
+    void addJavaSnippetInfoToApplicableTempFiles(JavaAttributeInfo newAttrInfo, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
-        super.addJavaSnippetInfoToApplicableTempFiles(newAttrInfo);
-        addConstructor(newAttrInfo);
+        super.addJavaSnippetInfoToApplicableTempFiles(newAttrInfo, pluginConfig);
+        addConstructor(newAttrInfo, pluginConfig);
     }
     }
 
 
     /**
     /**

@@ -21,10 +21,9 @@ import java.io.IOException;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangTypeHolder;
 import org.onosproject.yangutils.datamodel.YangTypeHolder;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
-import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
-import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPE_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPE_CLASS;
@@ -57,16 +56,6 @@ public class TempJavaCodeFragmentFiles {
     private TempJavaEnumerationFragmentFiles enumerationTempFiles;
     private TempJavaEnumerationFragmentFiles enumerationTempFiles;
 
 
     /**
     /**
-     * Has the temporary files required for generated event classes.
-     */
-    private TempJavaEventFragmentFiles eventTempFiles;
-
-    /**
-     * Has the temporary files required for generated event listenerclasses.
-     */
-    private TempJavaEventListenerFragmentFiles eventListenerTempFiles;
-
-    /**
      * Creates an instance of temporary java code fragment.
      * Creates an instance of temporary java code fragment.
      *
      *
      * @param javaFileInfo generated java file info
      * @param javaFileInfo generated java file info
@@ -79,16 +68,10 @@ public class TempJavaCodeFragmentFiles {
             setBeanTempFiles(new TempJavaBeanFragmentFiles(javaFileInfo));
             setBeanTempFiles(new TempJavaBeanFragmentFiles(javaFileInfo));
         }
         }
 
 
-        /**
-         * Creates user defined data type class file.
-         */
         if ((javaFileInfo.getGeneratedFileTypes() & GENERATE_TYPE_CLASS) != 0) {
         if ((javaFileInfo.getGeneratedFileTypes() & GENERATE_TYPE_CLASS) != 0) {
             setTypeTempFiles(new TempJavaTypeFragmentFiles(javaFileInfo));
             setTypeTempFiles(new TempJavaTypeFragmentFiles(javaFileInfo));
         }
         }
 
 
-        /**
-         * Creates enumeration class file.
-         */
         if ((javaFileInfo.getGeneratedFileTypes() & GENERATE_ENUM_CLASS) != 0) {
         if ((javaFileInfo.getGeneratedFileTypes() & GENERATE_ENUM_CLASS) != 0) {
             setEnumerationTempFiles(new TempJavaEnumerationFragmentFiles(javaFileInfo));
             setEnumerationTempFiles(new TempJavaEnumerationFragmentFiles(javaFileInfo));
         }
         }
@@ -97,13 +80,6 @@ public class TempJavaCodeFragmentFiles {
             setServiceTempFiles(new TempJavaServiceFragmentFiles(javaFileInfo));
             setServiceTempFiles(new TempJavaServiceFragmentFiles(javaFileInfo));
         }
         }
 
 
-        if ((javaFileInfo.getGeneratedFileTypes() & GENERATE_EVENT_CLASS) != 0) {
-            setEventTempFiles(new TempJavaEventFragmentFiles(javaFileInfo));
-        }
-
-        if ((javaFileInfo.getGeneratedFileTypes() & GENERATE_EVENT_LISTENER_INTERFACE) != 0) {
-            setEventListenerTempFiles(new TempJavaEventListenerFragmentFiles(javaFileInfo));
-        }
     }
     }
 
 
     /**
     /**
@@ -180,43 +156,6 @@ public class TempJavaCodeFragmentFiles {
     }
     }
 
 
     /**
     /**
-     * Retrieves the temp file handle for event file generation.
-     *
-     * @return temp file handle for event file generation
-     */
-    public TempJavaEventFragmentFiles getEventTempFiles() {
-        return eventTempFiles;
-    }
-
-    /**
-     * Sets temp file handle for event file generation.
-     *
-     * @param eventTempFiles temp file handle for event file generation
-     */
-    public void setEventTempFiles(TempJavaEventFragmentFiles eventTempFiles) {
-        this.eventTempFiles = eventTempFiles;
-    }
-
-    /**
-     * Retrieves the temp file handle for event listener file generation.
-     *
-     * @return temp file handle for event listener file generation
-     */
-    public TempJavaEventListenerFragmentFiles getEventListenerTempFiles() {
-        return eventListenerTempFiles;
-    }
-
-    /**
-     * Sets temp file handle for event listener file generation.
-     *
-     * @param eventListenerTempFiles temp file handle for event listener file generation
-     */
-    public void setEventListenerTempFiles(
-            TempJavaEventListenerFragmentFiles eventListenerTempFiles) {
-        this.eventListenerTempFiles = eventListenerTempFiles;
-    }
-
-    /**
      * Constructs java code exit.
      * Constructs java code exit.
      *
      *
      * @param fileType generated file type
      * @param fileType generated file type
@@ -238,7 +177,7 @@ public class TempJavaCodeFragmentFiles {
         }
         }
 
 
         /*
         /*
-         * Creats service and manager class file.
+         * Creates service and manager class file.
          */
          */
         if (fileType == GENERATE_SERVICE_AND_MANAGER) {
         if (fileType == GENERATE_SERVICE_AND_MANAGER) {
             getServiceTempFiles().generateJavaFile(GENERATE_SERVICE_AND_MANAGER, curNode);
             getServiceTempFiles().generateJavaFile(GENERATE_SERVICE_AND_MANAGER, curNode);
@@ -251,22 +190,6 @@ public class TempJavaCodeFragmentFiles {
             getEnumerationTempFiles().generateJavaFile(GENERATE_ENUM_CLASS, curNode);
             getEnumerationTempFiles().generateJavaFile(GENERATE_ENUM_CLASS, curNode);
         }
         }
 
 
-        if ((fileType & GENERATE_EVENT_CLASS) != 0) {
-            /*
-             * Creates event class file.
-             */
-            if (getEventTempFiles() != null) {
-                getEventTempFiles().generateJavaFile(fileType, curNode);
-            }
-        }
-
-        if ((fileType & GENERATE_EVENT_LISTENER_INTERFACE) != 0) {
-            /**
-             * Creates event listener class file.
-             */
-            getEventListenerTempFiles().generateJavaFile(fileType, curNode);
-        }
-
         freeTemporaryResources(false);
         freeTemporaryResources(false);
     }
     }
 
 
@@ -275,14 +198,16 @@ public class TempJavaCodeFragmentFiles {
      *
      *
      * @param newAttrInfo the attribute info that needs to be added to temporary
      * @param newAttrInfo the attribute info that needs to be added to temporary
      * files
      * files
+     * @param pluginConfig plugin configurations
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
-    public void addJavaSnippetInfoToApplicableTempFiles(JavaAttributeInfo newAttrInfo)
+    public void addJavaSnippetInfoToApplicableTempFiles(JavaAttributeInfo newAttrInfo,
+            YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
 
 
         if (getBeanTempFiles() != null) {
         if (getBeanTempFiles() != null) {
             getBeanTempFiles()
             getBeanTempFiles()
-                    .addJavaSnippetInfoToApplicableTempFiles(newAttrInfo);
+                    .addJavaSnippetInfoToApplicableTempFiles(newAttrInfo, pluginConfig);
         }
         }
 
 
         /**
         /**
@@ -290,7 +215,7 @@ public class TempJavaCodeFragmentFiles {
          */
          */
         if (getTypeTempFiles() != null) {
         if (getTypeTempFiles() != null) {
             getTypeTempFiles()
             getTypeTempFiles()
-                    .addJavaSnippetInfoToApplicableTempFiles(newAttrInfo);
+                    .addJavaSnippetInfoToApplicableTempFiles(newAttrInfo, pluginConfig);
         }
         }
     }
     }
 
 
@@ -299,24 +224,26 @@ public class TempJavaCodeFragmentFiles {
      * generated temporary file.
      * generated temporary file.
      *
      *
      * @param yangTypeHolder YANG java data model node which has type info, eg union / typedef
      * @param yangTypeHolder YANG java data model node which has type info, eg union / typedef
+     * @param pluginConfig plugin configurations for naming convention
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
-    public void addTypeInfoToTempFiles(YangTypeHolder yangTypeHolder)
+    public void addTypeInfoToTempFiles(YangTypeHolder yangTypeHolder, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         getTypeTempFiles()
         getTypeTempFiles()
-                .addTypeInfoToTempFiles(yangTypeHolder);
+                .addTypeInfoToTempFiles(yangTypeHolder, pluginConfig);
     }
     }
 
 
     /**
     /**
      * Adds build method for interface.
      * Adds build method for interface.
      *
      *
+     * @param pluginConfig plugin configurations
      * @return build method for interface
      * @return build method for interface
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    public String addBuildMethodForInterface()
+    public String addBuildMethodForInterface(YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         if (getBeanTempFiles() != null) {
         if (getBeanTempFiles() != null) {
-            return getBeanTempFiles().addBuildMethodForInterface();
+            return getBeanTempFiles().addBuildMethodForInterface(pluginConfig);
         }
         }
         throw new TranslatorException("build method only supported for bean class");
         throw new TranslatorException("build method only supported for bean class");
     }
     }
@@ -326,18 +253,19 @@ public class TempJavaCodeFragmentFiles {
      *
      *
      * @param modifier modifier for constructor.
      * @param modifier modifier for constructor.
      * @param toAppend string which need to be appended with the class name
      * @param toAppend string which need to be appended with the class name
+     * @param pluginConfig plugin configurations
      * @return default constructor for class
      * @return default constructor for class
      * @throws IOException when fails to append to file
      * @throws IOException when fails to append to file
      */
      */
-    public String addDefaultConstructor(String modifier, String toAppend)
+    public String addDefaultConstructor(String modifier, String toAppend, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         if (getTypeTempFiles() != null) {
         if (getTypeTempFiles() != null) {
             return getTypeTempFiles()
             return getTypeTempFiles()
-                    .addDefaultConstructor(modifier, toAppend);
+                    .addDefaultConstructor(modifier, toAppend, pluginConfig);
         }
         }
 
 
         if (getBeanTempFiles() != null) {
         if (getBeanTempFiles() != null) {
-            return getBeanTempFiles().addDefaultConstructor(modifier, toAppend);
+            return getBeanTempFiles().addDefaultConstructor(modifier, toAppend, pluginConfig);
         }
         }
 
 
         throw new TranslatorException("default constructor should not be added");
         throw new TranslatorException("default constructor should not be added");
@@ -380,13 +308,10 @@ public class TempJavaCodeFragmentFiles {
             getEnumerationTempFiles().freeTemporaryResources(isErrorOccurred);
             getEnumerationTempFiles().freeTemporaryResources(isErrorOccurred);
         }
         }
 
 
-        if (getEventTempFiles() != null) {
-            getEventTempFiles().freeTemporaryResources(isErrorOccurred);
+        if (getServiceTempFiles() != null) {
+            getServiceTempFiles().freeTemporaryResources(isErrorOccurred);
         }
         }
 
 
-        if (getEventListenerTempFiles() != null) {
-            getEventListenerTempFiles().freeTemporaryResources(isErrorOccurred);
-        }
     }
     }
 
 
 }
 }

@@ -28,13 +28,18 @@ import org.onosproject.yangutils.datamodel.YangEnumeration;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaType;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaType;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.ENUM_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.ENUM_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.JavaAttributeInfo.getAttributeInfoForTheData;
 import static org.onosproject.yangutils.translator.tojava.JavaAttributeInfo.getAttributeInfoForTheData;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaCodeSnippetGen.generateEnumAttributeString;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaCodeSnippetGen.generateEnumAttributeString;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateEnumClassFile;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateEnumClassFile;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getEnumJavaAttribute;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getPrefixForIdentifier;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.closeFile;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.closeFile;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.REGEX_FOR_FIRST_DIGIT;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_AUTO_PREFIX;
 import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.createPackage;
 import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.createPackage;
 
 
 /**
 /**
@@ -172,29 +177,41 @@ public class TempJavaEnumerationFragmentFiles extends TempJavaFragmentFiles {
     /**
     /**
      * Adds enum class attributes to temporary file.
      * Adds enum class attributes to temporary file.
      *
      *
-     * @param curEnumInfo current YANG enum
+     * @param curEnumName current YANG enum
      * @throws IOException when fails to do IO operations.
      * @throws IOException when fails to do IO operations.
      */
      */
-    private void addAttributesForEnumClass(String curEnumName) throws IOException {
-        appendToFile(getEnumClassTempFileHandle(), generateEnumAttributeString(curEnumName, getEnumValue()));
+    private void addAttributesForEnumClass(String curEnumName, YangPluginConfig pluginConfig) throws IOException {
+        appendToFile(getEnumClassTempFileHandle(),
+                generateEnumAttributeString(curEnumName, getEnumValue(), pluginConfig));
     }
     }
 
 
     /**
     /**
      * Adds enum attributes to temporary files.
      * Adds enum attributes to temporary files.
      *
      *
      * @param curNode current YANG node
      * @param curNode current YANG node
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to do IO operations
      * @throws IOException when fails to do IO operations
      */
      */
-    public void addEnumAttributeToTempFiles(YangNode curNode) throws IOException {
+    public void addEnumAttributeToTempFiles(YangNode curNode, YangPluginConfig pluginConfig) throws IOException {
 
 
-        super.addJavaSnippetInfoToApplicableTempFiles(getJavaAttributeForEnum());
+        super.addJavaSnippetInfoToApplicableTempFiles(getJavaAttributeForEnum(pluginConfig), pluginConfig);
         if (curNode instanceof YangEnumeration) {
         if (curNode instanceof YangEnumeration) {
             YangEnumeration enumeration = (YangEnumeration) curNode;
             YangEnumeration enumeration = (YangEnumeration) curNode;
             for (YangEnum curEnum : enumeration.getEnumSet()) {
             for (YangEnum curEnum : enumeration.getEnumSet()) {
+                String enumName = curEnum.getNamedValue();
+                String prefixForIdentifier = null;
+                if (enumName.matches(REGEX_FOR_FIRST_DIGIT)) {
+                    prefixForIdentifier = getPrefixForIdentifier(pluginConfig.getConflictResolver());
+                    if (prefixForIdentifier != null) {
+                        curEnum.setNamedValue(prefixForIdentifier + enumName);
+                    } else {
+                        curEnum.setNamedValue(YANG_AUTO_PREFIX + enumName);
+                    }
+                }
                 setEnumValue(curEnum.getValue());
                 setEnumValue(curEnum.getValue());
                 addToEnumStringList(curEnum.getNamedValue());
                 addToEnumStringList(curEnum.getNamedValue());
                 addToEnumSetJavaMap(curEnum.getNamedValue(), curEnum.getValue());
                 addToEnumSetJavaMap(curEnum.getNamedValue(), curEnum.getValue());
-                addJavaSnippetInfoToApplicableTempFiles(curEnum.getNamedValue());
+                addJavaSnippetInfoToApplicableTempFiles(curEnum.getNamedValue(), pluginConfig);
             }
             }
         } else {
         } else {
             throw new TranslatorException("current node should be of enumeration type.");
             throw new TranslatorException("current node should be of enumeration type.");
@@ -204,13 +221,14 @@ public class TempJavaEnumerationFragmentFiles extends TempJavaFragmentFiles {
     /**
     /**
     * Returns java attribute for enum class.
     * Returns java attribute for enum class.
     *
     *
+    * @param pluginConfig plugin configurations
     * @return java attribute
     * @return java attribute
     */
     */
-    public JavaAttributeInfo getJavaAttributeForEnum() {
+    public JavaAttributeInfo getJavaAttributeForEnum(YangPluginConfig pluginConfig) {
         YangJavaType<?> javaType = new YangJavaType<>();
         YangJavaType<?> javaType = new YangJavaType<>();
         javaType.setDataType(YangDataTypes.INT32);
         javaType.setDataType(YangDataTypes.INT32);
         javaType.setDataTypeName("int");
         javaType.setDataTypeName("int");
-        javaType.updateJavaQualifiedInfo();
+        javaType.updateJavaQualifiedInfo(pluginConfig.getConflictResolver());
         return getAttributeInfoForTheData(
         return getAttributeInfoForTheData(
                 javaType.getJavaQualifiedInfo(),
                 javaType.getJavaQualifiedInfo(),
                 javaType.getDataTypeName(), javaType,
                 javaType.getDataTypeName(), javaType,
@@ -224,7 +242,7 @@ public class TempJavaEnumerationFragmentFiles extends TempJavaFragmentFiles {
      * @param curEnumName current enum name
      * @param curEnumName current enum name
      */
      */
     private void addToEnumSetJavaMap(String curEnumName, int value) {
     private void addToEnumSetJavaMap(String curEnumName, int value) {
-        getEnumSetJavaMap().put(curEnumName.toUpperCase(), value);
+        getEnumSetJavaMap().put(getEnumJavaAttribute(curEnumName).toUpperCase(), value);
     }
     }
 
 
     /**
     /**
@@ -234,8 +252,9 @@ public class TempJavaEnumerationFragmentFiles extends TempJavaFragmentFiles {
      * files
      * files
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
-    void addJavaSnippetInfoToApplicableTempFiles(String curEnumName) throws IOException {
-        addAttributesForEnumClass(curEnumName);
+    void addJavaSnippetInfoToApplicableTempFiles(String curEnumName, YangPluginConfig pluginConfig)
+            throws IOException {
+        addAttributesForEnumClass(getEnumJavaAttribute(curEnumName), pluginConfig);
     }
     }
 
 
     /**
     /**
@@ -274,7 +293,7 @@ public class TempJavaEnumerationFragmentFiles extends TempJavaFragmentFiles {
      * @param curEnumValue current enum value
      * @param curEnumValue current enum value
      */
      */
     private void addToEnumStringList(String curEnumValue) {
     private void addToEnumStringList(String curEnumValue) {
-        getEnumStringList().add(curEnumValue.toUpperCase());
+        getEnumStringList().add(getEnumJavaAttribute(curEnumValue).toUpperCase());
     }
     }
 
 
     /**
     /**

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.onosproject.yangutils.translator.tojava;
-
-import java.io.File;
-import java.io.IOException;
-
-import org.onosproject.yangutils.datamodel.YangNode;
-import org.onosproject.yangutils.translator.tojava.utils.JavaExtendsListHolder;
-
-import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateEventFile;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
-import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.closeFile;
-import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.createPackage;
-import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getAbsolutePackagePath;
-
-/**
- * Represents implementation of java bean code fragments temporary implementations.
- * Maintains the temp files required specific for event java snippet generation.
- */
-public class TempJavaEventFragmentFiles
-        extends TempJavaFragmentFiles {
-
-    /**
-     * File name for generated class file for special type like union, typedef
-     * suffix.
-     */
-    private static final String EVENT_FILE_NAME_SUFFIX = "Event";
-
-    /**
-     * Java file handle for event file.
-     */
-    private File eventJavaFileHandle;
-
-    /**
-     * Creates an instance of temporary java code fragment.
-     *
-     * @param javaFileInfo generated java file info
-     * @throws IOException when fails to create new file handle
-     */
-    public TempJavaEventFragmentFiles(JavaFileInfo javaFileInfo)
-            throws IOException {
-        setJavaExtendsListHolder(new JavaExtendsListHolder());
-        setJavaImportData(new JavaImportData());
-        setJavaFileInfo(javaFileInfo);
-
-        setAbsoluteDirPath(getAbsolutePackagePath(getJavaFileInfo().getBaseCodeGenPath(),
-                getJavaFileInfo().getPackageFilePath()));
-
-    }
-
-    /**
-     * Returns event's java file handle.
-     *
-     * @return java file handle
-     */
-    private File getEventJavaFileHandle() {
-        return eventJavaFileHandle;
-    }
-
-    /**
-     * Sets event's java file handle.
-     *
-     * @param eventJavaFileHandle file handle for event
-     */
-    private void setEventJavaFileHandle(File eventJavaFileHandle) {
-        this.eventJavaFileHandle = eventJavaFileHandle;
-    }
-
-    /**
-     * Constructs java code exit.
-     *
-     * @param fileType generated file type
-     * @param curNode current YANG node
-     * @throws IOException when fails to generate java files
-     */
-    @Override
-    public void generateJavaFile(int fileType, YangNode curNode)
-            throws IOException {
-
-        createPackage(curNode);
-        String parentInfo = getCapitalCase(((JavaFileInfoContainer) curNode.getParent())
-                .getJavaFileInfo().getJavaName());
-
-        /**
-         * Creates event interface file.
-         */
-        setEventJavaFileHandle(getJavaFileHandle(parentInfo + EVENT_FILE_NAME_SUFFIX));
-        generateEventFile(getEventJavaFileHandle(), curNode, null);
-
-        /**
-         * Close all the file handles.
-         */
-        freeTemporaryResources(false);
-    }
-
-    /**
-     * Removes all temporary file handles.
-     *
-     * @param isErrorOccurred when translator fails to generate java files we
-     * need to close all open file handles include temporary files
-     * and java files.
-     * @throws IOException when failed to delete the temporary files
-     */
-    @Override
-    public void freeTemporaryResources(boolean isErrorOccurred)
-            throws IOException {
-        boolean isError = isErrorOccurred;
-        /**
-         * Close all java file handles and when error occurs delete the files.
-         */
-        closeFile(getEventJavaFileHandle(), isError);
-
-        super.freeTemporaryResources(isErrorOccurred);
-
-    }
-}

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.onosproject.yangutils.translator.tojava;
-
-import java.io.File;
-import java.io.IOException;
-
-import org.onosproject.yangutils.datamodel.YangNode;
-import org.onosproject.yangutils.translator.tojava.utils.JavaExtendsListHolder;
-
-import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateEventListenerFile;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
-import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.closeFile;
-import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.createPackage;
-import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getAbsolutePackagePath;
-
-/**
- * Represents implementation of java bean code fragments temporary implementations.
- * Maintains the temp files required specific for event listener java snippet generation.
- */
-public class TempJavaEventListenerFragmentFiles
-        extends TempJavaFragmentFiles {
-
-    /**
-     * File name for generated class file for special type like union, typedef
-     * suffix.
-     */
-    private static final String EVENT_LISTENER_FILE_NAME_SUFFIX = "Listener";
-
-    /**
-     * Java file handle for event listener file.
-     */
-    private File eventListenerJavaFileHandle;
-
-    /**
-     * Creates an instance of temporary java code fragment.
-     *
-     * @param javaFileInfo generated java file info
-     * @throws IOException when fails to create new file handle
-     */
-    public TempJavaEventListenerFragmentFiles(JavaFileInfo javaFileInfo)
-            throws IOException {
-        setJavaExtendsListHolder(new JavaExtendsListHolder());
-        setJavaImportData(new JavaImportData());
-        setJavaFileInfo(javaFileInfo);
-        setAbsoluteDirPath(getAbsolutePackagePath(getJavaFileInfo().getBaseCodeGenPath(),
-                getJavaFileInfo().getPackageFilePath()));
-    }
-
-    /**
-     * Returns event listeners's java file handle.
-     *
-     * @return java file handle
-     */
-    private File getEventListenerJavaFileHandle() {
-        return eventListenerJavaFileHandle;
-    }
-
-    /**
-     * Sets event's java file handle.
-     *
-     * @param eventListenerJavaFileHandle file handle for event
-     */
-    private void setEventListenerJavaFileHandle(File eventListenerJavaFileHandle) {
-        this.eventListenerJavaFileHandle = eventListenerJavaFileHandle;
-    }
-
-    /**
-     * Constructs java code exit.
-     *
-     * @param fileType generated file type
-     * @param curNode current YANG node
-     * @throws IOException when fails to generate java files
-     */
-    @Override
-    public void generateJavaFile(int fileType, YangNode curNode)
-            throws IOException {
-
-        createPackage(curNode);
-        String parentInfo = getCapitalCase(((JavaFileInfoContainer) curNode.getParent())
-                .getJavaFileInfo().getJavaName());
-        /**
-         * Creates event listener interface file.
-         */
-        setEventListenerJavaFileHandle(getJavaFileHandle(parentInfo + EVENT_LISTENER_FILE_NAME_SUFFIX));
-        generateEventListenerFile(getEventListenerJavaFileHandle(), curNode, null);
-
-        /**
-         * Close all the file handles.
-         */
-        freeTemporaryResources(false);
-    }
-
-    /**
-     * Removes all temporary file handles.
-     *
-     * @param isErrorOccurred when translator fails to generate java files we
-     * need to close all open file handles include temporary files
-     * and java files.
-     * @throws IOException when failed to delete the temporary files
-     */
-    @Override
-    public void freeTemporaryResources(boolean isErrorOccurred)
-            throws IOException {
-        boolean isError = isErrorOccurred;
-        /**
-         * Close all java file handles and when error occurs delete the files.
-         */
-        closeFile(getEventListenerJavaFileHandle(), isError);
-
-        super.freeTemporaryResources(isErrorOccurred);
-    }
-
-}

@@ -28,6 +28,12 @@ import org.onosproject.yangutils.datamodel.YangLeavesHolder;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.javamodel.JavaLeafInfoContainer;
 import org.onosproject.yangutils.translator.tojava.javamodel.JavaLeafInfoContainer;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaGrouping;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaInput;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModule;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaOutput;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaSubModule;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaUses;
 import org.onosproject.yangutils.translator.tojava.utils.JavaExtendsListHolder;
 import org.onosproject.yangutils.translator.tojava.utils.JavaExtendsListHolder;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
@@ -61,6 +67,7 @@ import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSy
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getPackageDirPathFromJavaJPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getPackageDirPathFromJavaJPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getParentNodeInGenCode;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getParentNodeInGenCode;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getRootPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getBuildString;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getBuildString;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getDefaultConstructorString;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getDefaultConstructorString;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getEqualsMethod;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getEqualsMethod;
@@ -795,35 +802,40 @@ public class TempJavaFragmentFiles {
      * Adds attribute for class.
      * Adds attribute for class.
      *
      *
      * @param attr attribute info
      * @param attr attribute info
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    private void addAttribute(JavaAttributeInfo attr)
+    private void addAttribute(JavaAttributeInfo attr, YangPluginConfig yangPluginConfig)
             throws IOException {
             throws IOException {
-        appendToFile(getAttributesTempFileHandle(), parseAttribute(attr) + FOUR_SPACE_INDENTATION);
+        appendToFile(getAttributesTempFileHandle(), parseAttribute(attr, yangPluginConfig)
+                + FOUR_SPACE_INDENTATION);
     }
     }
 
 
     /**
     /**
      * Adds getter for interface.
      * Adds getter for interface.
      *
      *
      * @param attr attribute info
      * @param attr attribute info
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    private void addGetterForInterface(JavaAttributeInfo attr)
+    private void addGetterForInterface(JavaAttributeInfo attr, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         appendToFile(getGetterInterfaceTempFileHandle(),
         appendToFile(getGetterInterfaceTempFileHandle(),
-                getGetterString(attr, getGeneratedJavaFiles()) + NEW_LINE);
+                getGetterString(attr, getGeneratedJavaFiles(), pluginConfig) + NEW_LINE);
     }
     }
 
 
     /**
     /**
      * Adds setter for interface.
      * Adds setter for interface.
      *
      *
      * @param attr attribute info
      * @param attr attribute info
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    private void addSetterForInterface(JavaAttributeInfo attr)
+    private void addSetterForInterface(JavaAttributeInfo attr, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         appendToFile(getSetterInterfaceTempFileHandle(),
         appendToFile(getSetterInterfaceTempFileHandle(),
-                getSetterString(attr, getGeneratedJavaClassName(), getGeneratedJavaFiles()) + NEW_LINE);
+                getSetterString(attr, getGeneratedJavaClassName(), getGeneratedJavaFiles(), pluginConfig)
+                        + NEW_LINE);
     }
     }
 
 
     /**
     /**
@@ -844,9 +856,10 @@ public class TempJavaFragmentFiles {
      * Adds getter method's impl for class.
      * Adds getter method's impl for class.
      *
      *
      * @param attr attribute info
      * @param attr attribute info
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    private void addGetterImpl(JavaAttributeInfo attr)
+    private void addGetterImpl(JavaAttributeInfo attr, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         if ((getGeneratedJavaFiles() & BUILDER_CLASS_MASK) != 0
         if ((getGeneratedJavaFiles() & BUILDER_CLASS_MASK) != 0
                 || (getGeneratedJavaFiles() & GENERATE_SERVICE_AND_MANAGER) != 0) {
                 || (getGeneratedJavaFiles() & GENERATE_SERVICE_AND_MANAGER) != 0) {
@@ -854,7 +867,7 @@ public class TempJavaFragmentFiles {
                     getGeneratedJavaFiles()) + NEW_LINE);
                     getGeneratedJavaFiles()) + NEW_LINE);
         } else {
         } else {
             appendToFile(getGetterImplTempFileHandle(),
             appendToFile(getGetterImplTempFileHandle(),
-                    getJavaDoc(GETTER_METHOD, getCapitalCase(attr.getAttributeName()), false)
+                    getJavaDoc(GETTER_METHOD, getCapitalCase(attr.getAttributeName()), false, pluginConfig)
                             + getGetterForClass(attr, getGeneratedJavaFiles()) + NEW_LINE);
                             + getGetterForClass(attr, getGeneratedJavaFiles()) + NEW_LINE);
         }
         }
     }
     }
@@ -863,11 +876,12 @@ public class TempJavaFragmentFiles {
      * Adds build method for interface.
      * Adds build method for interface.
      *
      *
      * @return build method for interface
      * @return build method for interface
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    String addBuildMethodForInterface()
+    String addBuildMethodForInterface(YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
-        return parseBuilderInterfaceBuildMethodString(getGeneratedJavaClassName());
+        return parseBuilderInterfaceBuildMethodString(getGeneratedJavaClassName(), pluginConfig);
     }
     }
 
 
     /**
     /**
@@ -886,23 +900,26 @@ public class TempJavaFragmentFiles {
      *
      *
      * @param modifier modifier for constructor.
      * @param modifier modifier for constructor.
      * @param toAppend string which need to be appended with the class name
      * @param toAppend string which need to be appended with the class name
+     * @param pluginConfig plugin configurations
      * @return default constructor for class
      * @return default constructor for class
      * @throws IOException when fails to append to file
      * @throws IOException when fails to append to file
      */
      */
-    String addDefaultConstructor(String modifier, String toAppend)
+    String addDefaultConstructor(String modifier, String toAppend, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
-        return NEW_LINE + getDefaultConstructorString(getGeneratedJavaClassName() + toAppend, modifier);
+        return NEW_LINE
+                + getDefaultConstructorString(getGeneratedJavaClassName() + toAppend, modifier, pluginConfig);
     }
     }
 
 
     /**
     /**
      * Adds default constructor for class.
      * Adds default constructor for class.
      *
      *
+     * @param pluginCnfig plugin configurations
      * @return default constructor for class
      * @return default constructor for class
      * @throws IOException when fails to append to file
      * @throws IOException when fails to append to file
      */
      */
-    public String addOfMethod()
+    public String addOfMethod(YangPluginConfig pluginCnfig)
             throws IOException {
             throws IOException {
-        return getJavaDoc(OF_METHOD, getGeneratedJavaClassName(), false)
+        return getJavaDoc(OF_METHOD, getGeneratedJavaClassName(), false, pluginCnfig)
                 + getOfMethod(getGeneratedJavaClassName(), null);
                 + getOfMethod(getGeneratedJavaClassName(), null);
     }
     }
 
 
@@ -994,6 +1011,7 @@ public class TempJavaFragmentFiles {
      */
      */
     public String getTemporaryDataFromFileHandle(File file)
     public String getTemporaryDataFromFileHandle(File file)
             throws IOException {
             throws IOException {
+
         String path = getTempDirPath();
         String path = getTempDirPath();
         if (new File(path + file.getName()).exists()) {
         if (new File(path + file.getName()).exists()) {
             return readAppendFile(path + file.getName(), EMPTY_STRING);
             return readAppendFile(path + file.getName(), EMPTY_STRING);
@@ -1017,13 +1035,14 @@ public class TempJavaFragmentFiles {
      * Parses attribute to get the attribute string.
      * Parses attribute to get the attribute string.
      *
      *
      * @param attr attribute info
      * @param attr attribute info
+     * @param pluginConfig plugin configurations
      * @return attribute string
      * @return attribute string
      */
      */
-    private String parseAttribute(JavaAttributeInfo attr) {
+    public String parseAttribute(JavaAttributeInfo attr, YangPluginConfig pluginConfig) {
         /*
         /*
          * TODO: check if this utility needs to be called or move to the caller
          * TODO: check if this utility needs to be called or move to the caller
          */
          */
-        String attributeName = getCamelCase(attr.getAttributeName(), null);
+        String attributeName = getCamelCase(attr.getAttributeName(), pluginConfig.getConflictResolver());
         if (attr.isQualifiedName()) {
         if (attr.isQualifiedName()) {
             return getJavaAttributeDefination(attr.getImportInfo().getPkgInfo(),
             return getJavaAttributeDefination(attr.getImportInfo().getPkgInfo(),
                     attr.getImportInfo().getClassInfo(),
                     attr.getImportInfo().getClassInfo(),
@@ -1056,22 +1075,26 @@ public class TempJavaFragmentFiles {
      * @param curNode current node which needs to be added as an attribute in
      * @param curNode current node which needs to be added as an attribute in
      * the parent generated code
      * the parent generated code
      * @param isList is list construct
      * @param isList is list construct
+     * @param pluginConfig plugin configurations
      * @throws IOException IO operation exception
      * @throws IOException IO operation exception
      */
      */
     public static void addCurNodeInfoInParentTempFile(YangNode curNode,
     public static void addCurNodeInfoInParentTempFile(YangNode curNode,
-            boolean isList)
+            boolean isList, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         YangNode parent = getParentNodeInGenCode(curNode);
         YangNode parent = getParentNodeInGenCode(curNode);
         if (!(parent instanceof JavaCodeGenerator)) {
         if (!(parent instanceof JavaCodeGenerator)) {
             throw new TranslatorException("missing parent node to contain current node info in generated file");
             throw new TranslatorException("missing parent node to contain current node info in generated file");
         }
         }
+        if (curNode instanceof YangJavaUses) {
+            curNode = ((YangJavaUses) curNode).getRefGroup();
+        }
         JavaAttributeInfo javaAttributeInfo = getCurNodeAsAttributeInParent(curNode,
         JavaAttributeInfo javaAttributeInfo = getCurNodeAsAttributeInParent(curNode,
                 parent, isList);
                 parent, isList);
         if (!(parent instanceof TempJavaCodeFragmentFilesContainer)) {
         if (!(parent instanceof TempJavaCodeFragmentFilesContainer)) {
             throw new TranslatorException("missing parent temp file handle");
             throw new TranslatorException("missing parent temp file handle");
         }
         }
         getNodesInterfaceFragmentFiles(parent)
         getNodesInterfaceFragmentFiles(parent)
-                .addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo);
+                .addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo, pluginConfig);
     }
     }
 
 
     /**
     /**
@@ -1087,23 +1110,57 @@ public class TempJavaFragmentFiles {
      */
      */
     public static JavaAttributeInfo getCurNodeAsAttributeInParent(
     public static JavaAttributeInfo getCurNodeAsAttributeInParent(
             YangNode curNode, YangNode parentNode, boolean isListNode) {
             YangNode curNode, YangNode parentNode, boolean isListNode) {
-        String curNodeName = ((JavaFileInfoContainer) curNode).getJavaFileInfo().getJavaName();
-        /*
-         * Get the import info corresponding to the attribute for import in
-         * generated java files or qualified access
-         */
-        JavaQualifiedTypeInfo qualifiedTypeInfo = getQualifiedTypeInfoOfCurNode(parentNode,
-                getCapitalCase(curNodeName));
+
+        YangPluginConfig pluginConfig = ((JavaFileInfoContainer) parentNode).getJavaFileInfo().getPluginConfig();
+        JavaFileInfo curNodeJavaInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+        String curNodeName = null;
+
+        if (curNodeJavaInfo.getJavaName() != null) {
+            curNodeName = curNodeJavaInfo.getJavaName();
+        } else {
+            curNodeName = getCamelCase(curNode.getName(), pluginConfig.getConflictResolver());
+        }
+
         if (!(parentNode instanceof TempJavaCodeFragmentFilesContainer)) {
         if (!(parentNode instanceof TempJavaCodeFragmentFilesContainer)) {
             throw new TranslatorException("Parent node does not have file info");
             throw new TranslatorException("Parent node does not have file info");
         }
         }
+
         TempJavaFragmentFiles tempJavaFragmentFiles = getNodesInterfaceFragmentFiles(parentNode);
         TempJavaFragmentFiles tempJavaFragmentFiles = getNodesInterfaceFragmentFiles(parentNode);
         boolean isQualified = true;
         boolean isQualified = true;
         JavaImportData parentImportData = tempJavaFragmentFiles.getJavaImportData();
         JavaImportData parentImportData = tempJavaFragmentFiles.getJavaImportData();
         if (isListNode) {
         if (isListNode) {
             parentImportData.setIfListImported(true);
             parentImportData.setIfListImported(true);
         }
         }
-        if (!detectCollisionBwParentAndChildForImport(curNode, qualifiedTypeInfo)) {
+
+        /*
+         * Get the import info corresponding to the attribute for import in
+         * generated java files or qualified access
+         */
+
+        JavaQualifiedTypeInfo qualifiedTypeInfo = new JavaQualifiedTypeInfo();
+        if (curNode instanceof YangJavaGrouping) {
+            qualifiedTypeInfo = resolveGroupingsQuailifiedInfo(curNode, pluginConfig);
+        } else {
+            qualifiedTypeInfo = getQualifiedTypeInfoOfCurNode(parentNode,
+                    getCapitalCase(curNodeName));
+        }
+
+        if (parentNode instanceof YangJavaModule
+                || parentNode instanceof YangJavaSubModule
+                || parentNode instanceof YangJavaInput
+                || parentNode instanceof YangJavaOutput) {
+            parentImportData.addImportInfo(qualifiedTypeInfo);
+            isQualified = false;
+        } else if (curNode instanceof YangJavaGrouping) {
+            JavaFileInfo parentsClassInfo = ((JavaFileInfoContainer) parentNode).getJavaFileInfo();
+            if (qualifiedTypeInfo.getClassInfo().equals(parentsClassInfo.getJavaName())) {
+                isQualified = true;
+            }
+            if (!qualifiedTypeInfo.getPkgInfo().equals(parentsClassInfo.getPackage())) {
+                parentImportData.addImportInfo(qualifiedTypeInfo);
+                isQualified = false;
+            }
+        } else if (!detectCollisionBwParentAndChildForImport(curNode, qualifiedTypeInfo)) {
             parentImportData.addImportInfo(qualifiedTypeInfo);
             parentImportData.addImportInfo(qualifiedTypeInfo);
             isQualified = false;
             isQualified = false;
         }
         }
@@ -1111,6 +1168,63 @@ public class TempJavaFragmentFiles {
     }
     }
 
 
     /**
     /**
+     * Resolves groupings java qualified info.
+     *
+     * @param curNode grouping node
+     * @param pluginConfig plugin configurations
+     * @return groupings java qualified info
+     */
+    public static JavaQualifiedTypeInfo resolveGroupingsQuailifiedInfo(YangNode curNode,
+            YangPluginConfig pluginConfig) {
+
+        JavaFileInfo groupingFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+        JavaQualifiedTypeInfo qualifiedTypeInfo = new JavaQualifiedTypeInfo();
+        if (groupingFileInfo.getPackage() == null) {
+            List<String> parentNames = new ArrayList<>();
+
+            YangNode tempNode = curNode.getParent();
+            YangNode groupingSuperParent = null;
+            while (tempNode != null) {
+                parentNames.add(tempNode.getName());
+                groupingSuperParent = tempNode;
+                tempNode = tempNode.getParent();
+            }
+
+            String pkg = null;
+            JavaFileInfo parentInfo = ((JavaFileInfoContainer) groupingSuperParent).getJavaFileInfo();
+            if (parentInfo.getPackage() == null) {
+                if (groupingSuperParent instanceof YangJavaModule) {
+                    YangJavaModule module = (YangJavaModule) groupingSuperParent;
+                    String modulePkg = getRootPackage(module.getVersion(), module.getNameSpace().getUri(), module
+                            .getRevision().getRevDate(), pluginConfig.getConflictResolver());
+                    pkg = modulePkg;
+                } else if (groupingSuperParent instanceof YangJavaSubModule) {
+                    YangJavaSubModule submodule = (YangJavaSubModule) groupingSuperParent;
+                    String subModulePkg = getRootPackage(submodule.getVersion(),
+                            submodule.getNameSpaceFromModule(submodule.getBelongsTo()),
+                            submodule.getRevision().getRevDate(), pluginConfig.getConflictResolver());
+                    pkg = subModulePkg;
+                }
+            } else {
+                pkg = parentInfo.getPackage();
+            }
+            for (String name : parentNames) {
+                pkg = pkg + PERIOD + getCamelCase(name, pluginConfig.getConflictResolver());
+            }
+
+            qualifiedTypeInfo.setPkgInfo(pkg.toLowerCase());
+            qualifiedTypeInfo.setClassInfo(
+                    getCapitalCase(getCamelCase(curNode.getName(), pluginConfig.getConflictResolver())));
+            return qualifiedTypeInfo;
+
+        } else {
+            qualifiedTypeInfo.setPkgInfo(groupingFileInfo.getPackage().toLowerCase());
+            qualifiedTypeInfo.setClassInfo(getCapitalCase(groupingFileInfo.getJavaName()));
+            return qualifiedTypeInfo;
+        }
+    }
+
+    /**
      * Returns interface fragment files for node.
      * Returns interface fragment files for node.
      *
      *
      * @param node YANG node
      * @param node YANG node
@@ -1134,8 +1248,9 @@ public class TempJavaFragmentFiles {
      * Adds parent's info to current node import list.
      * Adds parent's info to current node import list.
      *
      *
      * @param curNode current node for which import list needs to be updated
      * @param curNode current node for which import list needs to be updated
+     * @param pluginConfig plugin configurations
      */
      */
-    public void addParentInfoInCurNodeTempFile(YangNode curNode) {
+    public void addParentInfoInCurNodeTempFile(YangNode curNode, YangPluginConfig pluginConfig) {
         caseImportInfo = new JavaQualifiedTypeInfo();
         caseImportInfo = new JavaQualifiedTypeInfo();
         YangNode parent = getParentNodeInGenCode(curNode);
         YangNode parent = getParentNodeInGenCode(curNode);
         if (!(parent instanceof JavaCodeGenerator)) {
         if (!(parent instanceof JavaCodeGenerator)) {
@@ -1145,7 +1260,8 @@ public class TempJavaFragmentFiles {
             throw new TranslatorException("missing java file information to get the package details "
             throw new TranslatorException("missing java file information to get the package details "
                     + "of attribute corresponding to child node");
                     + "of attribute corresponding to child node");
         }
         }
-        caseImportInfo.setClassInfo(getCapitalCase(getCamelCase(parent.getName(), null)));
+        caseImportInfo.setClassInfo(getCapitalCase(getCamelCase(parent.getName(),
+                pluginConfig.getConflictResolver())));
         caseImportInfo.setPkgInfo(((JavaFileInfoContainer) parent).getJavaFileInfo().getPackage());
         caseImportInfo.setPkgInfo(((JavaFileInfoContainer) parent).getJavaFileInfo().getPackage());
         ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
         ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                 .getBeanTempFiles().getJavaImportData().addImportInfo(caseImportInfo);
                 .getBeanTempFiles().getJavaImportData().addImportInfo(caseImportInfo);
@@ -1167,6 +1283,7 @@ public class TempJavaFragmentFiles {
                     throw new TranslatorException("Leaf does not have java information");
                     throw new TranslatorException("Leaf does not have java information");
                 }
                 }
                 JavaLeafInfoContainer javaLeaf = (JavaLeafInfoContainer) leaf;
                 JavaLeafInfoContainer javaLeaf = (JavaLeafInfoContainer) leaf;
+                javaLeaf.setConflictResolveConfig(yangPluginConfig.getConflictResolver());
                 javaLeaf.updateJavaQualifiedInfo();
                 javaLeaf.updateJavaQualifiedInfo();
                 JavaAttributeInfo javaAttributeInfo = getAttributeInfoForTheData(
                 JavaAttributeInfo javaAttributeInfo = getAttributeInfoForTheData(
                         javaLeaf.getJavaQualifiedInfo(),
                         javaLeaf.getJavaQualifiedInfo(),
@@ -1174,7 +1291,7 @@ public class TempJavaFragmentFiles {
                         javaLeaf.getDataType(),
                         javaLeaf.getDataType(),
                         getIsQualifiedAccessOrAddToImportList(javaLeaf.getJavaQualifiedInfo()),
                         getIsQualifiedAccessOrAddToImportList(javaLeaf.getJavaQualifiedInfo()),
                         false);
                         false);
-                addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo);
+                addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo, yangPluginConfig);
             }
             }
         }
         }
     }
     }
@@ -1194,6 +1311,7 @@ public class TempJavaFragmentFiles {
                     throw new TranslatorException("Leaf-list does not have java information");
                     throw new TranslatorException("Leaf-list does not have java information");
                 }
                 }
                 JavaLeafInfoContainer javaLeaf = (JavaLeafInfoContainer) leafList;
                 JavaLeafInfoContainer javaLeaf = (JavaLeafInfoContainer) leafList;
+                javaLeaf.setConflictResolveConfig(yangPluginConfig.getConflictResolver());
                 javaLeaf.updateJavaQualifiedInfo();
                 javaLeaf.updateJavaQualifiedInfo();
                 getJavaImportData().setIfListImported(true);
                 getJavaImportData().setIfListImported(true);
                 JavaAttributeInfo javaAttributeInfo = getAttributeInfoForTheData(
                 JavaAttributeInfo javaAttributeInfo = getAttributeInfoForTheData(
@@ -1202,7 +1320,7 @@ public class TempJavaFragmentFiles {
                         javaLeaf.getDataType(),
                         javaLeaf.getDataType(),
                         getIsQualifiedAccessOrAddToImportList(javaLeaf.getJavaQualifiedInfo()),
                         getIsQualifiedAccessOrAddToImportList(javaLeaf.getJavaQualifiedInfo()),
                         true);
                         true);
-                addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo);
+                addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo, yangPluginConfig);
             }
             }
         }
         }
     }
     }
@@ -1231,21 +1349,22 @@ public class TempJavaFragmentFiles {
      *
      *
      * @param newAttrInfo the attribute info that needs to be added to temporary
      * @param newAttrInfo the attribute info that needs to be added to temporary
      * files
      * files
+     * @param pluginConfig plugin configurations
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
-    void addJavaSnippetInfoToApplicableTempFiles(JavaAttributeInfo newAttrInfo)
+    void addJavaSnippetInfoToApplicableTempFiles(JavaAttributeInfo newAttrInfo, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         setAttributePresent(true);
         setAttributePresent(true);
         if ((getGeneratedTempFiles() & ATTRIBUTES_MASK) != 0) {
         if ((getGeneratedTempFiles() & ATTRIBUTES_MASK) != 0) {
-            addAttribute(newAttrInfo);
+            addAttribute(newAttrInfo, pluginConfig);
         }
         }
 
 
         if ((getGeneratedTempFiles() & GETTER_FOR_INTERFACE_MASK) != 0) {
         if ((getGeneratedTempFiles() & GETTER_FOR_INTERFACE_MASK) != 0) {
-            addGetterForInterface(newAttrInfo);
+            addGetterForInterface(newAttrInfo, pluginConfig);
         }
         }
 
 
         if ((getGeneratedTempFiles() & SETTER_FOR_INTERFACE_MASK) != 0) {
         if ((getGeneratedTempFiles() & SETTER_FOR_INTERFACE_MASK) != 0) {
-            addSetterForInterface(newAttrInfo);
+            addSetterForInterface(newAttrInfo, pluginConfig);
         }
         }
 
 
         if ((getGeneratedTempFiles() & SETTER_FOR_CLASS_MASK) != 0) {
         if ((getGeneratedTempFiles() & SETTER_FOR_CLASS_MASK) != 0) {
@@ -1253,7 +1372,7 @@ public class TempJavaFragmentFiles {
         }
         }
 
 
         if ((getGeneratedTempFiles() & GETTER_FOR_CLASS_MASK) != 0) {
         if ((getGeneratedTempFiles() & GETTER_FOR_CLASS_MASK) != 0) {
-            addGetterImpl(newAttrInfo);
+            addGetterImpl(newAttrInfo, pluginConfig);
         }
         }
         if ((getGeneratedTempFiles() & HASH_CODE_IMPL_MASK) != 0) {
         if ((getGeneratedTempFiles() & HASH_CODE_IMPL_MASK) != 0) {
             addHashCodeMethod(newAttrInfo);
             addHashCodeMethod(newAttrInfo);
@@ -1266,7 +1385,8 @@ public class TempJavaFragmentFiles {
         }
         }
 
 
         if ((getGeneratedTempFiles() & FROM_STRING_IMPL_MASK) != 0) {
         if ((getGeneratedTempFiles() & FROM_STRING_IMPL_MASK) != 0) {
-            JavaQualifiedTypeInfo qualifiedInfoOfFromString = getQualifiedInfoOfFromString(newAttrInfo);
+            JavaQualifiedTypeInfo qualifiedInfoOfFromString =
+                    getQualifiedInfoOfFromString(newAttrInfo, pluginConfig.getConflictResolver());
             /*
             /*
              * Create a new java attribute info with qualified information of
              * Create a new java attribute info with qualified information of
              * wrapper classes.
              * wrapper classes.
@@ -1309,9 +1429,8 @@ public class TempJavaFragmentFiles {
     public void generateJavaFile(int fileType, YangNode curNode)
     public void generateJavaFile(int fileType, YangNode curNode)
             throws IOException {
             throws IOException {
         List<String> imports = new ArrayList<>();
         List<String> imports = new ArrayList<>();
-        if (isAttributePresent()) {
         imports = getJavaImportData().getImports();
         imports = getJavaImportData().getImports();
-        }
+
         createPackage(curNode);
         createPackage(curNode);
 
 
         /*
         /*
@@ -1319,19 +1438,6 @@ public class TempJavaFragmentFiles {
          */
          */
         if ((fileType & INTERFACE_MASK) != 0 || (fileType &
         if ((fileType & INTERFACE_MASK) != 0 || (fileType &
                 BUILDER_INTERFACE_MASK) != 0) {
                 BUILDER_INTERFACE_MASK) != 0) {
-            /*
-             * Adds import for case.
-             */
-            if (curNode instanceof YangCase) {
-                List<String> importData =
-                        ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
-                                .getBeanTempFiles().getJavaImportData().getImports();
-                for (String importInfo : importData) {
-                    if (!imports.contains(importInfo)) {
-                        imports.add(importInfo);
-                    }
-                }
-            }
 
 
             /*
             /*
              * Create interface file.
              * Create interface file.

@@ -22,26 +22,60 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.List;
 
 
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
-import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaNotification;
-
+import org.onosproject.yangutils.datamodel.YangNotification;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModule;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaSubModule;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_ENUM_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_METHOD_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_ATTRIBUTE_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_GETTER_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_SETTER_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.RPC_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.RPC_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.RPC_INTERFACE_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.RPC_INTERFACE_MASK;
+import static org.onosproject.yangutils.translator.tojava.JavaAttributeInfo.getAttributeInfoForTheData;
+import static org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo.getQualifiedTypeInfoOfCurNode;
+import static org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType.getJavaDataType;
+import static org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType.getJavaImportClass;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaCodeSnippetGen.getJavaClassDefClose;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaCodeSnippetGen.getJavaClassDefClose;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaCodeSnippetGen.getListAttribute;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateEventFile;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateEventListenerFile;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateEventSubjectFile;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateManagerClassFile;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateManagerClassFile;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateServiceInterfaceFile;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerator.generateServiceInterfaceFile;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getFileObject;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getEnumJavaAttribute;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getSmallCase;
+import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getGetterForClass;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getRpcManagerMethod;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getRpcManagerMethod;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getRpcServiceMethod;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getRpcServiceMethod;
+import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getSetterForClass;
+import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.addAnnotationsImports;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.addListnersImport;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.addListnersImport;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.closeFile;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.closeFile;
+import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.EVENT_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.FOUR_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_REG;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_REG;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.RPC_INPUT_VAR_NAME;
 import static org.onosproject.yangutils.utils.UtilConstants.RPC_INPUT_VAR_NAME;
+import static org.onosproject.yangutils.utils.UtilConstants.SLASH;
 import static org.onosproject.yangutils.utils.UtilConstants.VOID;
 import static org.onosproject.yangutils.utils.UtilConstants.VOID;
 import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.createPackage;
 import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.createPackage;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.generateJavaDocForRpc;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.generateJavaDocForRpc;
+import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
+import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.ENUM_ATTRIBUTE;
+import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.GETTER_METHOD;
+import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.MANAGER_SETTER_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.insertDataIntoJavaFile;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.insertDataIntoJavaFile;
 
 
 /**
 /**
@@ -62,6 +96,30 @@ public class TempJavaServiceFragmentFiles
     private static final String RPC_IMPL_FILE_NAME = "RpcImpl";
     private static final String RPC_IMPL_FILE_NAME = "RpcImpl";
 
 
     /**
     /**
+     * File name for event enum temp file.
+     */
+    private static final String EVENT_ENUM_FILE_NAME = "EventEnum";
+
+    /**
+     * File name for event method temp file.
+     */
+    private static final String EVENT_METHOD_FILE_NAME = "EventMethod";
+
+    /**
+     * File name for event subject attribute temp file.
+     */
+    private static final String EVENT_SUBJECT_ATTRIBUTE_FILE_NAME = "EventSubjectAttribute";
+
+    /**
+     * File name for event subject getter temp file.
+     */
+    private static final String EVENT_SUBJECT_GETTER_FILE_NAME = "EventSubjectGetter";
+
+    /**
+     * File name for event subject setter temp file.
+     */
+    private static final String EVENT_SUBJECT_SETTER_FILE_NAME = "EventSubjectSetter";
+    /**
      * File name for generated class file for service
      * File name for generated class file for service
      * suffix.
      * suffix.
      */
      */
@@ -74,6 +132,41 @@ public class TempJavaServiceFragmentFiles
     private static final String MANAGER_FILE_NAME_SUFFIX = "Manager";
     private static final String MANAGER_FILE_NAME_SUFFIX = "Manager";
 
 
     /**
     /**
+     * File name for generated class file for special type like union, typedef
+     * suffix.
+     */
+    private static final String EVENT_FILE_NAME_SUFFIX = "Event";
+
+    /**
+     * File name for generated class file for special type like union, typedef
+     * suffix.
+     */
+    private static final String EVENT_LISTENER_FILE_NAME_SUFFIX = "Listener";
+
+    /**
+     * File name for generated class file for special type like union, typedef
+     * suffix.
+     */
+    public static final String EVENT_SUBJECT_NAME_SUFFIX = "EventSubject";
+
+    private static final String JAVA_FILE_EXTENSION = ".java";
+
+    /**
+     * Java file handle for event subject file.
+     */
+    private File eventSubjectJavaFileHandle;
+
+    /**
+     * Java file handle for event listener file.
+     */
+    private File eventListenerJavaFileHandle;
+
+    /**
+     * Java file handle for event file.
+     */
+    private File eventJavaFileHandle;
+
+    /**
      * Temporary file handle for rpc interface.
      * Temporary file handle for rpc interface.
      */
      */
     private File rpcInterfaceTempFileHandle;
     private File rpcInterfaceTempFileHandle;
@@ -94,6 +187,31 @@ public class TempJavaServiceFragmentFiles
     private File managerJavaFileHandle;
     private File managerJavaFileHandle;
 
 
     /**
     /**
+     * Java file handle for event enum impl file.
+     */
+    private File eventEnumTempFileHandle;
+
+    /**
+     * Java file handle for event method impl file.
+     */
+    private File eventMethodTempFileHandle;
+
+    /**
+     * Java file handle for event subject attribute file.
+     */
+    private File eventSubjectAttributeTempFileHandle;
+
+    /**
+     * Java file handle for event subject getter impl file.
+     */
+    private File eventSubjectGetterTempFileHandle;
+
+    /**
+     * Java file handle for event subject setter impl file.
+     */
+    private File eventSubjectSetterTempFileHandle;
+
+    /**
      * Returns rpc method's java file handle.
      * Returns rpc method's java file handle.
      *
      *
      * @return java file handle
      * @return java file handle
@@ -166,6 +284,60 @@ public class TempJavaServiceFragmentFiles
     }
     }
 
 
     /**
     /**
+     * Returns event's java file handle.
+     *
+     * @return java file handle
+     */
+    private File getEventJavaFileHandle() {
+        return eventJavaFileHandle;
+    }
+
+    /**
+     * Sets event's java file handle.
+     *
+     * @param eventJavaFileHandle file handle for event
+     */
+    private void setEventJavaFileHandle(File eventJavaFileHandle) {
+        this.eventJavaFileHandle = eventJavaFileHandle;
+    }
+
+    /**
+     * Returns event listeners's java file handle.
+     *
+     * @return java file handle
+     */
+    private File getEventListenerJavaFileHandle() {
+        return eventListenerJavaFileHandle;
+    }
+
+    /**
+     * Sets event's java file handle.
+     *
+     * @param eventListenerJavaFileHandle file handle for event
+     */
+    private void setEventListenerJavaFileHandle(File eventListenerJavaFileHandle) {
+        this.eventListenerJavaFileHandle = eventListenerJavaFileHandle;
+    }
+
+    /**
+     * Returns event subject's java file handle.
+     *
+     * @return java file handle
+     */
+    private File getEventSubjectJavaFileHandle() {
+        return eventSubjectJavaFileHandle;
+    }
+
+    /**
+     * Sets event's subject java file handle.
+     *
+     * @param eventSubjectJavaFileHandle file handle for event's subject
+     */
+    private void setEventSubjectJavaFileHandle(File eventSubjectJavaFileHandle) {
+        this.eventSubjectJavaFileHandle = eventSubjectJavaFileHandle;
+    }
+
+    /**
      * Creates an instance of temporary java code fragment.
      * Creates an instance of temporary java code fragment.
      *
      *
      * @param javaFileInfo generated file information
      * @param javaFileInfo generated file information
@@ -176,11 +348,22 @@ public class TempJavaServiceFragmentFiles
         super(javaFileInfo);
         super(javaFileInfo);
 
 
         addGeneratedTempFile(RPC_INTERFACE_MASK);
         addGeneratedTempFile(RPC_INTERFACE_MASK);
-
         addGeneratedTempFile(RPC_IMPL_MASK);
         addGeneratedTempFile(RPC_IMPL_MASK);
 
 
+        addGeneratedTempFile(EVENT_ENUM_MASK);
+        addGeneratedTempFile(EVENT_METHOD_MASK);
+        addGeneratedTempFile(EVENT_SUBJECT_ATTRIBUTE_MASK);
+        addGeneratedTempFile(EVENT_SUBJECT_GETTER_MASK);
+        addGeneratedTempFile(EVENT_SUBJECT_SETTER_MASK);
+
         setRpcInterfaceTempFileHandle(getTemporaryFileHandle(RPC_INTERFACE_FILE_NAME));
         setRpcInterfaceTempFileHandle(getTemporaryFileHandle(RPC_INTERFACE_FILE_NAME));
         setRpcImplTempFileHandle(getTemporaryFileHandle(RPC_IMPL_FILE_NAME));
         setRpcImplTempFileHandle(getTemporaryFileHandle(RPC_IMPL_FILE_NAME));
+
+        setEventEnumTempFileHandle(getTemporaryFileHandle(EVENT_ENUM_FILE_NAME));
+        setEventMethodTempFileHandle(getTemporaryFileHandle(EVENT_METHOD_FILE_NAME));
+        setEventSubjectAttributeTempFileHandle(getTemporaryFileHandle(EVENT_SUBJECT_ATTRIBUTE_FILE_NAME));
+        setEventSubjectGetterTempFileHandle(getTemporaryFileHandle(EVENT_SUBJECT_GETTER_FILE_NAME));
+        setEventSubjectSetterTempFileHandle(getTemporaryFileHandle(EVENT_SUBJECT_SETTER_FILE_NAME));
     }
     }
 
 
     /**
     /**
@@ -199,13 +382,14 @@ public class TempJavaServiceFragmentFiles
         createPackage(curNode);
         createPackage(curNode);
 
 
         boolean isNotification = false;
         boolean isNotification = false;
-        YangNode tempNode = curNode.getChild();
-        while (tempNode != null) {
-            if (tempNode instanceof YangJavaNotification) {
+        if (curNode instanceof YangJavaModule) {
+            if (!((YangJavaModule) curNode).getNotificationNodes().isEmpty()) {
+                isNotification = true;
+            }
+        } else if (curNode instanceof YangJavaSubModule) {
+            if (!((YangJavaSubModule) curNode).getNotificationNodes().isEmpty()) {
                 isNotification = true;
                 isNotification = true;
-                break;
             }
             }
-            tempNode = tempNode.getNextSibling();
         }
         }
 
 
         if (isNotification) {
         if (isNotification) {
@@ -221,6 +405,7 @@ public class TempJavaServiceFragmentFiles
             addListnersImport(curNode, imports, false, LISTENER_SERVICE);
             addListnersImport(curNode, imports, false, LISTENER_SERVICE);
             addListnersImport(curNode, imports, true, LISTENER_REG);
             addListnersImport(curNode, imports, true, LISTENER_REG);
         }
         }
+        addAnnotationsImports(imports, true);
         /**
         /**
          * Create builder class file.
          * Create builder class file.
          */
          */
@@ -231,6 +416,14 @@ public class TempJavaServiceFragmentFiles
         if (isNotification) {
         if (isNotification) {
             addListnersImport(curNode, imports, false, LISTENER_REG);
             addListnersImport(curNode, imports, false, LISTENER_REG);
         }
         }
+        addAnnotationsImports(imports, false);
+
+        if (isNotification) {
+            generateEventJavaFile(GENERATE_EVENT_CLASS, curNode);
+            generateEventListenerJavaFile(GENERATE_EVENT_LISTENER_INTERFACE, curNode);
+            generateEventSubjectJavaFile(GENERATE_EVENT_SUBJECT_CLASS, curNode);
+        }
+
         /**
         /**
          * Close all the file handles.
          * Close all the file handles.
          */
          */
@@ -243,22 +436,115 @@ public class TempJavaServiceFragmentFiles
      * @param javaAttributeInfoOfInput rpc's input node attribute info
      * @param javaAttributeInfoOfInput rpc's input node attribute info
      * @param javaAttributeInfoOfOutput rpc's output node attribute info
      * @param javaAttributeInfoOfOutput rpc's output node attribute info
      * @param rpcName name of the rpc function
      * @param rpcName name of the rpc function
+     * @param pluginConfig plugin configurations
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
     private void addRpcString(JavaAttributeInfo javaAttributeInfoOfInput,
     private void addRpcString(JavaAttributeInfo javaAttributeInfoOfInput,
-            JavaAttributeInfo javaAttributeInfoOfOutput,
+            JavaAttributeInfo javaAttributeInfoOfOutput, YangPluginConfig pluginConfig,
             String rpcName) throws IOException {
             String rpcName) throws IOException {
         String rpcInput = EMPTY_STRING;
         String rpcInput = EMPTY_STRING;
         String rpcOutput = VOID;
         String rpcOutput = VOID;
+        String rpcInputJavaDoc = EMPTY_STRING;
         if (javaAttributeInfoOfInput != null) {
         if (javaAttributeInfoOfInput != null) {
             rpcInput = getCapitalCase(javaAttributeInfoOfInput.getAttributeName());
             rpcInput = getCapitalCase(javaAttributeInfoOfInput.getAttributeName());
         }
         }
         if (javaAttributeInfoOfOutput != null) {
         if (javaAttributeInfoOfOutput != null) {
             rpcOutput = getCapitalCase(javaAttributeInfoOfOutput.getAttributeName());
             rpcOutput = getCapitalCase(javaAttributeInfoOfOutput.getAttributeName());
         }
         }
-        appendToFile(getRpcInterfaceTempFileHandle(), generateJavaDocForRpc(rpcName, RPC_INPUT_VAR_NAME, rpcOutput)
-                + getRpcServiceMethod(rpcName, rpcInput, rpcOutput) + NEW_LINE);
-        appendToFile(getRpcImplTempFileHandle(), getRpcManagerMethod(rpcName, rpcInput, rpcOutput) + NEW_LINE);
+        if (!rpcInput.equals(EMPTY_STRING)) {
+            rpcInputJavaDoc = RPC_INPUT_VAR_NAME;
+        }
+        appendToFile(getRpcInterfaceTempFileHandle(),
+                generateJavaDocForRpc(rpcName, rpcInputJavaDoc, rpcOutput, pluginConfig)
+                        + getRpcServiceMethod(rpcName, rpcInput, rpcOutput, pluginConfig) + NEW_LINE);
+        appendToFile(getRpcImplTempFileHandle(),
+                getRpcManagerMethod(rpcName, rpcInput, rpcOutput, pluginConfig) + NEW_LINE);
+    }
+
+    /**
+     * Adds rpc string information to applicable temp file.
+     *
+     * @param javaAttributeInfoOfInput rpc's input node attribute info
+     * @param javaAttributeInfoOfOutput rpc's output node attribute info
+     * @param rpcName name of the rpc function
+     * @param pluginConfig plugin configurations
+     * @param isInputLeafHolder if input node is leaf holder
+     * @param isOutputLeafHolder if output node is leaf holder
+     * @param isInputSingleChildHolder if input node is single child holder
+     * @param isOutputSingleChildHolder if input node is single child holder
+     * @throws IOException IO operation fail
+     */
+    public void addRpcString(JavaAttributeInfo javaAttributeInfoOfInput,
+            JavaAttributeInfo javaAttributeInfoOfOutput, YangPluginConfig pluginConfig,
+            String rpcName, boolean isInputLeafHolder, boolean isOutputLeafHolder,
+            boolean isInputSingleChildHolder, boolean isOutputSingleChildHolder) throws IOException {
+        String rpcInput = EMPTY_STRING;
+        String rpcOutput = VOID;
+        String rpcInputJavaDoc = EMPTY_STRING;
+        if (javaAttributeInfoOfInput != null) {
+            rpcInput = getInputOutputNames(javaAttributeInfoOfInput, isInputLeafHolder, isInputSingleChildHolder,
+                    pluginConfig);
+        }
+        if (javaAttributeInfoOfOutput != null) {
+            rpcOutput =
+                    getInputOutputNames(javaAttributeInfoOfOutput, isOutputLeafHolder, isOutputSingleChildHolder,
+                            pluginConfig);
+        }
+        if (!rpcInput.equals(EMPTY_STRING)) {
+            rpcInputJavaDoc = RPC_INPUT_VAR_NAME;
+        }
+
+        appendToFile(getRpcInterfaceTempFileHandle(),
+                generateJavaDocForRpc(rpcName, rpcInputJavaDoc, rpcOutput, pluginConfig)
+                        + getRpcServiceMethod(rpcName, rpcInput, rpcOutput, pluginConfig) + NEW_LINE);
+        appendToFile(getRpcImplTempFileHandle(),
+                getRpcManagerMethod(rpcName, rpcInput, rpcOutput, pluginConfig) + NEW_LINE);
+    }
+
+    /**
+     * Returns names for input and output.
+     *
+     * @param attr attribute info
+     * @param isLeafHolder if leaf holder
+     * @param isSinglechildHolder if single child holder
+     * @param pluginConfig plugin configurations
+     * @return names for input and output
+     */
+    private String getInputOutputNames(JavaAttributeInfo attr, boolean isLeafHolder, boolean isSinglechildHolder,
+            YangPluginConfig pluginConfig) {
+        if (!attr.isListAttr()) {
+            if (!isLeafHolder || isSinglechildHolder) {
+                String attrName = "";
+                if (!attr.isQualifiedName()) {
+                    attrName = getCapitalCase(attr.getAttributeName());
+                } else {
+                    attrName = attr.getImportInfo().getPkgInfo() + "." + getCapitalCase(attr.getAttributeName());
+                }
+                return attrName;
+            } else {
+                String rpcInput = getJavaImportClass(attr.getAttributeType(), false,
+                        pluginConfig.getConflictResolver());
+                if (rpcInput == null) {
+                    rpcInput = getJavaDataType(attr.getAttributeType());
+                }
+                return rpcInput;
+            }
+        } else {
+            if (!isLeafHolder || isSinglechildHolder) {
+                String attrName = "";
+                if (!attr.isQualifiedName()) {
+                    attrName = getCapitalCase(attr.getAttributeName());
+                } else {
+                    attrName = attr.getImportInfo().getPkgInfo() + "." + getCapitalCase(attr.getAttributeName());
+                }
+                return getListAttribute(attrName);
+
+            } else {
+                return getListAttribute(getJavaImportClass(attr.getAttributeType(), true,
+                        pluginConfig.getConflictResolver()));
+
+            }
+        }
     }
     }
 
 
     /**
     /**
@@ -266,14 +552,105 @@ public class TempJavaServiceFragmentFiles
      *
      *
      * @param javaAttributeInfoOfInput rpc's input node attribute info
      * @param javaAttributeInfoOfInput rpc's input node attribute info
      * @param javaAttributeInfoOfOutput rpc's output node attribute info
      * @param javaAttributeInfoOfOutput rpc's output node attribute info
+     * @param pluginConfig plugin configurations
      * @param rpcName name of the rpc function
      * @param rpcName name of the rpc function
+     * @param isInputLeafHolder if input node is leaf holder
+     * @param isOutputLeafHolder if output node is leaf holder
+     * @param isInputSingleChildHolder if input node is single child holder
+     * @param isOutputSingleChildHolder if input node is single child holder
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
     public void addJavaSnippetInfoToApplicableTempFiles(JavaAttributeInfo javaAttributeInfoOfInput,
     public void addJavaSnippetInfoToApplicableTempFiles(JavaAttributeInfo javaAttributeInfoOfInput,
-            JavaAttributeInfo javaAttributeInfoOfOutput,
-            String rpcName)
+            JavaAttributeInfo javaAttributeInfoOfOutput, YangPluginConfig pluginConfig,
+            String rpcName, boolean isInputLeafHolder, boolean isOutputLeafHolder,
+            boolean isInputSingleChildHolder, boolean isOutputSingleChildHolder)
             throws IOException {
             throws IOException {
-        addRpcString(javaAttributeInfoOfInput, javaAttributeInfoOfOutput, rpcName);
+        addRpcString(javaAttributeInfoOfInput, javaAttributeInfoOfOutput, pluginConfig, rpcName, isInputLeafHolder,
+                isOutputLeafHolder, isInputSingleChildHolder, isOutputSingleChildHolder);
+    }
+
+    /**
+     * Constructs java code exit.
+     *
+     * @param fileType generated file type
+     * @param curNode current YANG node
+     * @throws IOException when fails to generate java files
+     */
+    public void generateEventJavaFile(int fileType, YangNode curNode)
+            throws IOException {
+
+        List<String> imports = new ArrayList<>();
+
+        imports.add(getJavaImportData().getAbstractEventsImport());
+        String curNodeInfo =
+                getCapitalCase(((JavaFileInfoContainer) curNode).getJavaFileInfo().getJavaName());
+        String nodeName = curNodeInfo + EVENT_STRING;
+
+        addEnumMethod(nodeName, curNodeInfo + EVENT_SUBJECT_NAME_SUFFIX);
+
+        /**
+         * Creates event interface file.
+         */
+        setEventJavaFileHandle(getJavaFileHandle(curNode, curNodeInfo + EVENT_FILE_NAME_SUFFIX));
+        generateEventFile(getEventJavaFileHandle(), curNode, imports);
+
+        /**
+         * Close all the file handles.
+         */
+        freeTemporaryResources(false);
+    }
+
+    /**
+     * Constructs java code exit.
+     *
+     * @param fileType generated file type
+     * @param curNode current YANG node
+     * @throws IOException when fails to generate java files
+     */
+    public void generateEventListenerJavaFile(int fileType, YangNode curNode)
+            throws IOException {
+
+        List<String> imports = new ArrayList<>();
+
+        imports.add(getJavaImportData().getEventListenerImport());
+        String curNodeInfo = getCapitalCase(((JavaFileInfoContainer) curNode)
+                .getJavaFileInfo().getJavaName());
+        /**
+         * Creates event listener interface file.
+         */
+        setEventListenerJavaFileHandle(
+                getJavaFileHandle(curNode, curNodeInfo + EVENT_LISTENER_FILE_NAME_SUFFIX));
+        generateEventListenerFile(getEventListenerJavaFileHandle(), curNode, imports);
+
+        /**
+         * Close all the file handles.
+         */
+        freeTemporaryResources(false);
+    }
+
+    /**
+     * Constructs java code exit.
+     *
+     * @param fileType generated file type
+     * @param curNode current YANG node
+     * @throws IOException when fails to generate java files
+     */
+    public void generateEventSubjectJavaFile(int fileType, YangNode curNode)
+            throws IOException {
+
+        String curNodeInfo = getCapitalCase(((JavaFileInfoContainer) curNode)
+                .getJavaFileInfo().getJavaName());
+        /**
+         * Creates event interface file.
+         */
+        setEventSubjectJavaFileHandle(getJavaFileHandle(curNode, curNodeInfo +
+                EVENT_SUBJECT_NAME_SUFFIX));
+        generateEventSubjectFile(getEventSubjectJavaFileHandle(), curNode);
+
+        /**
+         * Close all the file handles.
+         */
+        freeTemporaryResources(false);
     }
     }
 
 
     /**
     /**
@@ -290,6 +667,18 @@ public class TempJavaServiceFragmentFiles
         boolean isError = isErrorOccurred;
         boolean isError = isErrorOccurred;
 
 
         closeFile(getServiceInterfaceJavaFileHandle(), isError);
         closeFile(getServiceInterfaceJavaFileHandle(), isError);
+        closeFile(getManagerJavaFileHandle(), isError);
+
+        if (getEventJavaFileHandle() != null) {
+            closeFile(getEventJavaFileHandle(), isError);
+        }
+        if (getEventListenerJavaFileHandle() != null) {
+            closeFile(getEventListenerJavaFileHandle(), isError);
+        }
+        if (getEventSubjectJavaFileHandle() != null) {
+            closeFile(getEventSubjectJavaFileHandle(), isError);
+        }
+
         closeFile(getRpcInterfaceTempFileHandle(), true);
         closeFile(getRpcInterfaceTempFileHandle(), true);
         closeFile(getRpcImplTempFileHandle(), true);
         closeFile(getRpcImplTempFileHandle(), true);
         closeFile(getGetterInterfaceTempFileHandle(), true);
         closeFile(getGetterInterfaceTempFileHandle(), true);
@@ -299,4 +688,207 @@ public class TempJavaServiceFragmentFiles
         super.freeTemporaryResources(isErrorOccurred);
         super.freeTemporaryResources(isErrorOccurred);
 
 
     }
     }
+
+    /**
+     * Returns event enum temp file.
+     *
+     * @return event enum temp file
+     */
+    public File getEventEnumTempFileHandle() {
+        return eventEnumTempFileHandle;
+    }
+
+    /**
+     * Sets event enum temp file.
+     *
+     * @param eventEnumTempFileHandle event enum temp file
+     */
+    public void setEventEnumTempFileHandle(File eventEnumTempFileHandle) {
+        this.eventEnumTempFileHandle = eventEnumTempFileHandle;
+    }
+
+    /**
+     * Returns event method temp file.
+     *
+     * @return event method temp file
+     */
+    public File getEventMethodTempFileHandle() {
+        return eventMethodTempFileHandle;
+    }
+
+    /**
+     * Sets event method temp file.
+     *
+     * @param eventMethodTempFileHandle event method temp file
+     */
+    public void setEventMethodTempFileHandle(File eventMethodTempFileHandle) {
+        this.eventMethodTempFileHandle = eventMethodTempFileHandle;
+    }
+
+    /**
+     * Returns event subject attribute temp file.
+     *
+     * @return event subject attribute temp file
+     */
+    public File getEventSubjectAttributeTempFileHandle() {
+        return eventSubjectAttributeTempFileHandle;
+    }
+
+    /**
+     * Sets event subject attribute temp file.
+     *
+     * @param eventSubjectAttributeTempFileHandle event subject attribute temp file
+     */
+    public void setEventSubjectAttributeTempFileHandle(File eventSubjectAttributeTempFileHandle) {
+        this.eventSubjectAttributeTempFileHandle = eventSubjectAttributeTempFileHandle;
+    }
+
+    /**
+     * Returns event subject getter temp file.
+     *
+     * @return event subject getter temp file
+     */
+    public File getEventSubjectGetterTempFileHandle() {
+        return eventSubjectGetterTempFileHandle;
+    }
+
+    /**
+     * Sets event subject getter temp file.
+     *
+     * @param eventSubjectGetterTempFileHandle event subject getter temp file
+     */
+    public void setEventSubjectGetterTempFileHandle(File eventSubjectGetterTempFileHandle) {
+        this.eventSubjectGetterTempFileHandle = eventSubjectGetterTempFileHandle;
+    }
+
+    /**
+     * Returns event subject setter temp file.
+     *
+     * @return event subject setter temp file
+     */
+    public File getEventSubjectSetterTempFileHandle() {
+        return eventSubjectSetterTempFileHandle;
+    }
+
+    /**
+     * Sets event subject setter temp file.
+     *
+     * @param eventSubjectSetterTempFileHandle event subject setter temp file
+     */
+    public void setEventSubjectSetterTempFileHandle(File eventSubjectSetterTempFileHandle) {
+        this.eventSubjectSetterTempFileHandle = eventSubjectSetterTempFileHandle;
+    }
+
+    /**
+     * Adds java snippet for events to event subject file.
+     *
+     * @param curNode current node
+     * @param pluginConfig plugin configurations
+     * @throws IOException when fails to do IO operations
+     */
+    public void addJavaSnippetOfEvent(YangNode curNode, YangPluginConfig pluginConfig) throws IOException {
+
+        String currentInfo = getCapitalCase(getCamelCase(((YangNotification) curNode).getName(),
+                pluginConfig.getConflictResolver()));
+        String notificationName = ((YangNotification) curNode).getName();
+
+        JavaQualifiedTypeInfo qualifiedTypeInfo = getQualifiedTypeInfoOfCurNode(curNode.getParent(),
+                getCapitalCase(currentInfo));
+
+        JavaAttributeInfo javaAttributeInfo =
+                getAttributeInfoForTheData(qualifiedTypeInfo, getSmallCase(currentInfo),
+                        null, false, false);
+
+        /*Adds java info for event in respective temp files.*/
+        addEventEnum(notificationName, pluginConfig);
+        addEventSubjectAttribute(javaAttributeInfo, pluginConfig);
+        addEventSubjectGetter(javaAttributeInfo, pluginConfig);
+        addEventSubjectSetter(javaAttributeInfo, pluginConfig, currentInfo);
+    }
+
+    /*Adds event to enum temp file.*/
+    private void addEventEnum(String notificationName, YangPluginConfig pluginConfig) throws IOException {
+        appendToFile(getEventEnumTempFileHandle(),
+                getJavaDoc(ENUM_ATTRIBUTE, notificationName, false, pluginConfig) + FOUR_SPACE_INDENTATION
+                        + getEnumJavaAttribute(notificationName).toUpperCase() + COMMA + NEW_LINE);
+    }
+
+    /*Adds event method in event class*/
+    private void addEnumMethod(String eventClassname, String className) throws IOException {
+        appendToFile(getEventMethodTempFileHandle(), getEventFileContents(eventClassname, className));
+    }
+
+    /*Adds event method contents to event file.*/
+    private static String getEventFileContents(String eventClassname, String classname) {
+        return "\n" +
+                "    /**\n" +
+                "     * Creates " + classname + " event with type and subject.\n" +
+                "     *\n" +
+                "     * @param type event type\n" +
+                "     * @param subject subject " + classname + "\n" +
+                "     */\n" +
+                "    public " + eventClassname + "(Type type, " + getCapitalCase(classname) + " subject) {\n" +
+                "        super(type, subject);\n" +
+                "    }\n" +
+                "\n" +
+                "    /**\n" +
+                "     * Creates " + classname + " event with type, subject and time.\n" +
+                "     *\n" +
+                "     * @param type event type\n" +
+                "     * @param subject subject " + classname + "\n" +
+                "     * @param time time of event\n" +
+                "     */\n" +
+                "    public " + eventClassname + "(Type type, " + getCapitalCase(classname)
+                + " subject, long time) {\n" +
+                "        super(type, subject, time);\n" +
+                "    }\n" +
+                "\n";
+    }
+
+    /*Adds events to event subject file.*/
+    private void addEventSubjectAttribute(JavaAttributeInfo attr, YangPluginConfig pluginConfig)
+            throws IOException {
+        appendToFile(getEventSubjectAttributeTempFileHandle(),
+                FOUR_SPACE_INDENTATION + parseAttribute(attr, pluginConfig));
+    }
+
+    /*Adds getter method for event in event subject class.*/
+    private void addEventSubjectGetter(JavaAttributeInfo attr, YangPluginConfig pluginConfig) throws IOException {
+        appendToFile(getEventSubjectGetterTempFileHandle(),
+                getJavaDoc(GETTER_METHOD, getCapitalCase(attr.getAttributeName()), false, pluginConfig)
+                        + getGetterForClass(attr, GENERATE_EVENT_SUBJECT_CLASS) + NEW_LINE);
+    }
+
+    /*Adds setter method for event in event subject class.*/
+    private void addEventSubjectSetter(JavaAttributeInfo attr, YangPluginConfig pluginConfig, String className)
+            throws IOException {
+        appendToFile(getEventSubjectSetterTempFileHandle(),
+                getJavaDoc(MANAGER_SETTER_METHOD, getCapitalCase(attr.getAttributeName()), false, pluginConfig)
+                        + getSetterForClass(attr, className, GENERATE_EVENT_SUBJECT_CLASS) + NEW_LINE);
+    }
+
+    /**
+     * Returns a temporary file handle for the event's file type.
+     *
+     * @param fileName file name
+     * @return temporary file handle
+     * @throws IOException when fails to create new file handle
+     */
+    private File getJavaFileHandle(YangNode curNode, String name)
+            throws IOException {
+
+        JavaFileInfo parentInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+
+        return getFileObject(getDirPath(parentInfo), name, JAVA_FILE_EXTENSION,
+                parentInfo);
+    }
+
+    /**
+     * Returns the directory path.
+     *
+     * @return directory path
+     */
+    private String getDirPath(JavaFileInfo parentInfo) {
+        return (parentInfo.getPackageFilePath() + SLASH + parentInfo.getJavaName()).toLowerCase();
+    }
 }
 }

@@ -26,8 +26,8 @@ import org.onosproject.yangutils.datamodel.YangType;
 import org.onosproject.yangutils.datamodel.YangTypeHolder;
 import org.onosproject.yangutils.datamodel.YangTypeHolder;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaType;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaType;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
-import static org.onosproject.yangutils.datamodel.YangDataTypes.DERIVED;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_FOR_TYPE_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_FOR_TYPE_MASK;
@@ -196,9 +196,10 @@ public class TempJavaTypeFragmentFiles
      *
      *
      * @param yangTypeHolder YANG java data model node which has type info, eg union /
      * @param yangTypeHolder YANG java data model node which has type info, eg union /
      * typedef
      * typedef
+     * @param pluginConfig plugin configurations for naming conventions
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
-    public void addTypeInfoToTempFiles(YangTypeHolder yangTypeHolder)
+    public void addTypeInfoToTempFiles(YangTypeHolder yangTypeHolder, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
 
 
         List<YangType<?>> typeList = yangTypeHolder.getTypeList();
         List<YangType<?>> typeList = yangTypeHolder.getTypeList();
@@ -208,18 +209,16 @@ public class TempJavaTypeFragmentFiles
                     throw new TranslatorException("Type does not have Java info");
                     throw new TranslatorException("Type does not have Java info");
                 }
                 }
                 YangJavaType<?> javaType = (YangJavaType<?>) yangType;
                 YangJavaType<?> javaType = (YangJavaType<?>) yangType;
-                javaType.updateJavaQualifiedInfo();
+                javaType.updateJavaQualifiedInfo(pluginConfig.getConflictResolver());
                 String typeName = javaType.getDataTypeName();
                 String typeName = javaType.getDataTypeName();
-
-                if (javaType.getDataType().equals(DERIVED)) {
-                    typeName = getCamelCase(typeName, null);
-                }
+                    typeName = getCamelCase(typeName, pluginConfig.getConflictResolver());
                 JavaAttributeInfo javaAttributeInfo = getAttributeInfoForTheData(
                 JavaAttributeInfo javaAttributeInfo = getAttributeInfoForTheData(
                         javaType.getJavaQualifiedInfo(),
                         javaType.getJavaQualifiedInfo(),
                         typeName, javaType,
                         typeName, javaType,
                         getIsQualifiedAccessOrAddToImportList(javaType.getJavaQualifiedInfo()),
                         getIsQualifiedAccessOrAddToImportList(javaType.getJavaQualifiedInfo()),
                         false);
                         false);
-                addJavaSnippetInfoToApplicableTempFiles((YangNode) yangTypeHolder, javaAttributeInfo);
+                addJavaSnippetInfoToApplicableTempFiles((YangNode) yangTypeHolder, javaAttributeInfo,
+                        pluginConfig);
             }
             }
         }
         }
     }
     }
@@ -231,18 +230,20 @@ public class TempJavaTypeFragmentFiles
      * @param hasType the node for which the type is being added as an attribute
      * @param hasType the node for which the type is being added as an attribute
      * @param javaAttributeInfo the attribute info that needs to be added to
      * @param javaAttributeInfo the attribute info that needs to be added to
      * temporary files
      * temporary files
+     * @param pluginConfig plugin configurations
      * @throws IOException IO operation fail
      * @throws IOException IO operation fail
      */
      */
-    private void addJavaSnippetInfoToApplicableTempFiles(YangNode hasType, JavaAttributeInfo javaAttributeInfo)
+    private void addJavaSnippetInfoToApplicableTempFiles(YangNode hasType, JavaAttributeInfo javaAttributeInfo,
+            YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
 
 
-        super.addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo);
+        super.addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo, pluginConfig);
 
 
         if ((getGeneratedTempFiles() & OF_STRING_IMPL_MASK) != 0) {
         if ((getGeneratedTempFiles() & OF_STRING_IMPL_MASK) != 0) {
-            addOfStringMethod(javaAttributeInfo);
+            addOfStringMethod(javaAttributeInfo, pluginConfig);
         }
         }
         if ((getGeneratedTempFiles() & CONSTRUCTOR_FOR_TYPE_MASK) != 0) {
         if ((getGeneratedTempFiles() & CONSTRUCTOR_FOR_TYPE_MASK) != 0) {
-            addTypeConstructor(javaAttributeInfo);
+            addTypeConstructor(javaAttributeInfo, pluginConfig);
         }
         }
     }
     }
 
 
@@ -250,24 +251,26 @@ public class TempJavaTypeFragmentFiles
      * Adds type constructor.
      * Adds type constructor.
      *
      *
      * @param attr attribute info
      * @param attr attribute info
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    private void addTypeConstructor(JavaAttributeInfo attr)
+    private void addTypeConstructor(JavaAttributeInfo attr, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         appendToFile(getConstructorForTypeTempFileHandle(), getTypeConstructorStringAndJavaDoc(attr,
         appendToFile(getConstructorForTypeTempFileHandle(), getTypeConstructorStringAndJavaDoc(attr,
-                getGeneratedJavaClassName()) + NEW_LINE);
+                getGeneratedJavaClassName(), pluginConfig) + NEW_LINE);
     }
     }
 
 
     /**
     /**
      * Adds of string for type.
      * Adds of string for type.
      *
      *
      * @param attr attribute info
      * @param attr attribute info
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to append to temporary file
      * @throws IOException when fails to append to temporary file
      */
      */
-    private void addOfStringMethod(JavaAttributeInfo attr)
+    private void addOfStringMethod(JavaAttributeInfo attr, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
         appendToFile(getOfStringImplTempFileHandle(), getOfMethodStringAndJavaDoc(attr,
         appendToFile(getOfStringImplTempFileHandle(), getOfMethodStringAndJavaDoc(attr,
-                getGeneratedJavaClassName())
+                getGeneratedJavaClassName(), pluginConfig)
                 + NEW_LINE);
                 + NEW_LINE);
     }
     }
 
 

@@ -57,4 +57,19 @@ public interface JavaLeafInfoContainer
      * updates the qualified info.
      * updates the qualified info.
      */
      */
     void updateJavaQualifiedInfo();
     void updateJavaQualifiedInfo();
+
+    /**
+     * Returns java naming conflict resolver.
+     *
+     * @return  java naming conflict resolver
+     */
+    YangToJavaNamingConflictUtil getConflictResolveConfig();
+
+    /**
+     * Sets  java naming conflict resolver.
+     *
+     * @param conflictResolveConfig  java naming conflict resolver
+     */
+    void setConflictResolveConfig(YangToJavaNamingConflictUtil conflictResolveConfig);
+
 }
 }

@@ -16,7 +16,7 @@
 package org.onosproject.yangutils.translator.tojava.javamodel;
 package org.onosproject.yangutils.translator.tojava.javamodel;
 
 
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfoContainer;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfoContainer;
-
+import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
 
 
 /**
 /**
  * Represent java based identification of the YANG leaves.
  * Represent java based identification of the YANG leaves.
@@ -26,6 +26,8 @@ public interface JavaQualifiedTypeResolver
 
 
     /**
     /**
      * updates the qualified access details of the type.
      * updates the qualified access details of the type.
+     *
+     * @param confilictResolver plugin configurations
      */
      */
-    void updateJavaQualifiedInfo();
+    void updateJavaQualifiedInfo(YangToJavaNamingConflictUtil confilictResolver);
 }
 }

@@ -15,18 +15,116 @@
  */
  */
 package org.onosproject.yangutils.translator.tojava.javamodel;
 package org.onosproject.yangutils.translator.tojava.javamodel;
 
 
+import java.io.IOException;
+
 import org.onosproject.yangutils.datamodel.YangGrouping;
 import org.onosproject.yangutils.datamodel.YangGrouping;
+import org.onosproject.yangutils.translator.exception.TranslatorException;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
+import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
+import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfNode;
 
 
 /**
 /**
  * Represents grouping information extended to support java code generation.
  * Represents grouping information extended to support java code generation.
  */
  */
 public class YangJavaGrouping
 public class YangJavaGrouping
-        extends YangGrouping {
+        extends YangGrouping implements JavaCodeGeneratorInfo, JavaCodeGenerator {
+
+    /**
+     * Contains the information of the java file being generated.
+     */
+    private JavaFileInfo javaFileInfo;
+
+    /**
+     * File handle to maintain temporary java code fragments as per the code
+     * snippet types.
+     */
+    private TempJavaCodeFragmentFiles tempFileHandle;
 
 
     /**
     /**
      * Creates YANG Java grouping object.
      * Creates YANG Java grouping object.
      */
      */
     public YangJavaGrouping() {
     public YangJavaGrouping() {
         super();
         super();
+        setJavaFileInfo(new JavaFileInfo());
+        getJavaFileInfo().setGeneratedFileTypes(GENERATE_INTERFACE_WITH_BUILDER);
+    }
+
+    /**
+     * Returns the generated java file information.
+     *
+     * @return generated java file information
+     */
+    @Override
+    public JavaFileInfo getJavaFileInfo() {
+        if (javaFileInfo == null) {
+            throw new TranslatorException("Missing java info in java datamodel node");
+        }
+        return javaFileInfo;
+    }
+
+    /**
+     * Sets the java file info object.
+     *
+     * @param javaInfo java file info object
+     */
+    @Override
+    public void setJavaFileInfo(JavaFileInfo javaInfo) {
+        javaFileInfo = javaInfo;
+    }
+
+    /**
+     * Returns the temporary file handle.
+     *
+     * @return temporary file handle
+     */
+    @Override
+    public TempJavaCodeFragmentFiles getTempJavaCodeFragmentFiles() {
+        return tempFileHandle;
     }
     }
+
+    /**
+     * Sets temporary file handle.
+     *
+     * @param fileHandle temporary file handle
+     */
+    @Override
+    public void setTempJavaCodeFragmentFiles(TempJavaCodeFragmentFiles fileHandle) {
+        tempFileHandle = fileHandle;
+    }
+
+    /**
+     * Prepare the information for java code generation corresponding to YANG
+     * grouping info.
+     *
+     * @param yangPlugin YANG plugin config
+     * @throws TranslatorException translator operation fail
+     */
+    @Override
+    public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
+        try {
+            generateCodeOfNode(this, yangPlugin);
+        } catch (IOException e) {
+            throw new TranslatorException(
+                    "Failed to prepare generate code entry for container node " + this.getName());
+        }
+    }
+
+    /**
+     * Create a java file using the YANG grouping info.
+     *
+     * @throws TranslatorException translator operation fail
+     */
+    @Override
+    public void generateCodeExit() throws TranslatorException {
+        try {
+            getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_INTERFACE_WITH_BUILDER, this);
+        } catch (IOException e) {
+            throw new TranslatorException("Failed to generate code for container node " + this.getName());
+        }
+    }
+
 }
 }

@@ -26,7 +26,7 @@ import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfNode;
+import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
 
 
 /**
 /**
  * Represents input information extended to support java code generation.
  * Represents input information extended to support java code generation.
@@ -46,6 +46,8 @@ public class YangJavaInput
      */
      */
     private TempJavaCodeFragmentFiles tempFileHandle;
     private TempJavaCodeFragmentFiles tempFileHandle;
 
 
+    private boolean codeGenFlag;
+
     /**
     /**
      * Creates an instance of java input.
      * Creates an instance of java input.
      */
      */
@@ -108,7 +110,7 @@ public class YangJavaInput
     @Override
     @Override
     public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
     public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
         try {
         try {
-            generateCodeOfNode(this, yangPlugin);
+            generateCodeOfAugmentableNode(this, yangPlugin);
         } catch (IOException e) {
         } catch (IOException e) {
             throw new TranslatorException(
             throw new TranslatorException(
                     "Failed to prepare generate code entry for input node " + this.getName());
                     "Failed to prepare generate code entry for input node " + this.getName());
@@ -123,9 +125,29 @@ public class YangJavaInput
     @Override
     @Override
     public void generateCodeExit() throws TranslatorException {
     public void generateCodeExit() throws TranslatorException {
         try {
         try {
+            if (isCodeGenFlag()) {
                 getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_INTERFACE_WITH_BUILDER, this);
                 getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_INTERFACE_WITH_BUILDER, this);
+            }
         } catch (IOException e) {
         } catch (IOException e) {
             throw new TranslatorException("Failed to generate code for input node " + this.getName());
             throw new TranslatorException("Failed to generate code for input node " + this.getName());
         }
         }
     }
     }
+
+    /**
+     * Returns code generator flag.
+     *
+     * @return code generator flag
+     */
+    public boolean isCodeGenFlag() {
+        return codeGenFlag;
+    }
+
+    /**
+     * Sets code generator flag.
+     *
+     * @param codeGenFlag code generator flag
+     */
+    public void setCodeGenFlag(boolean codeGenFlag) {
+        this.codeGenFlag = codeGenFlag;
+    }
 }
 }

@@ -30,6 +30,7 @@ public class YangJavaLeaf
         implements JavaLeafInfoContainer {
         implements JavaLeafInfoContainer {
 
 
     private JavaQualifiedTypeInfo javaQualifiedAccess;
     private JavaQualifiedTypeInfo javaQualifiedAccess;
+    private YangToJavaNamingConflictUtil conflictResolveConfig;
 
 
     /**
     /**
      * Returns a new YANG leaf object with java qualified access details.
      * Returns a new YANG leaf object with java qualified access details.
@@ -50,6 +51,7 @@ public class YangJavaLeaf
 
 
     }
     }
 
 
+    @Override
     public String getJavaName(YangToJavaNamingConflictUtil conflictResolveConfig) {
     public String getJavaName(YangToJavaNamingConflictUtil conflictResolveConfig) {
         return getCamelCase(getName(), conflictResolveConfig);
         return getCamelCase(getName(), conflictResolveConfig);
     }
     }
@@ -63,4 +65,25 @@ public class YangJavaLeaf
     public void updateJavaQualifiedInfo() {
     public void updateJavaQualifiedInfo() {
         updateLeavesJavaQualifiedInfo(this);
         updateLeavesJavaQualifiedInfo(this);
     }
     }
+
+    /**
+     * Returns java naming conflict resolve configurations.
+     *
+     * @return java naming conflict resolve configurations
+     */
+    @Override
+    public YangToJavaNamingConflictUtil getConflictResolveConfig() {
+        return conflictResolveConfig;
+    }
+
+    /**
+     * Sets java naming conflict resolve configurations.
+     *
+     * @param conflictResolveConfig java naming conflict resolve configurations
+     */
+    @Override
+    public void setConflictResolveConfig(YangToJavaNamingConflictUtil conflictResolveConfig) {
+        this.conflictResolveConfig = conflictResolveConfig;
+    }
+
 }
 }

@@ -29,6 +29,7 @@ public class YangJavaLeafList
         extends YangLeafList
         extends YangLeafList
         implements JavaLeafInfoContainer {
         implements JavaLeafInfoContainer {
     private JavaQualifiedTypeInfo javaQualifiedAccess;
     private JavaQualifiedTypeInfo javaQualifiedAccess;
+    private YangToJavaNamingConflictUtil conflictResolveConfig;
 
 
     /**
     /**
      * Returns a new YANG leaf object with java qualified access details.
      * Returns a new YANG leaf object with java qualified access details.
@@ -62,4 +63,24 @@ public class YangJavaLeafList
     public void setJavaQualifiedInfo(JavaQualifiedTypeInfo typeInfo) {
     public void setJavaQualifiedInfo(JavaQualifiedTypeInfo typeInfo) {
         javaQualifiedAccess = typeInfo;
         javaQualifiedAccess = typeInfo;
     }
     }
+
+    /**
+     * Returns java naming conflict resolve configurations.
+     *
+     * @return java naming conflict resolve configurations
+     */
+    @Override
+    public YangToJavaNamingConflictUtil getConflictResolveConfig() {
+        return conflictResolveConfig;
+    }
+
+    /**
+     * Sets java naming conflict resolve configurations.
+     *
+     * @param conflictResolveConfig java naming conflict resolve configurations
+     */
+    @Override
+    public void setConflictResolveConfig(YangToJavaNamingConflictUtil conflictResolveConfig) {
+        this.conflictResolveConfig = conflictResolveConfig;
+    }
 }
 }

@@ -16,14 +16,21 @@
 package org.onosproject.yangutils.translator.tojava.javamodel;
 package org.onosproject.yangutils.translator.tojava.javamodel;
 
 
 import java.io.IOException;
 import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
 
 
 import org.onosproject.yangutils.datamodel.YangModule;
 import org.onosproject.yangutils.datamodel.YangModule;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.YangNotification;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getRootPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getRootPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfRootNode;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfRootNode;
@@ -48,12 +55,24 @@ public class YangJavaModule
     private TempJavaCodeFragmentFiles tempFileHandle;
     private TempJavaCodeFragmentFiles tempFileHandle;
 
 
     /**
     /**
+     * List of notifications nodes.
+     */
+    private List<YangNode> notificationNodes;
+
+    /**
      * Creates a YANG node of module type.
      * Creates a YANG node of module type.
      */
      */
     public YangJavaModule() {
     public YangJavaModule() {
         super();
         super();
         setJavaFileInfo(new JavaFileInfo());
         setJavaFileInfo(new JavaFileInfo());
-        getJavaFileInfo().setGeneratedFileTypes(GENERATE_SERVICE_AND_MANAGER);
+        setNotificationNodes(new ArrayList<>());
+        int gentype = GENERATE_SERVICE_AND_MANAGER;
+        if (isNotificationChildNodePresent(this)) {
+            gentype = GENERATE_SERVICE_AND_MANAGER | GENERATE_EVENT_SUBJECT_CLASS | GENERATE_EVENT_CLASS
+                    | GENERATE_EVENT_LISTENER_INTERFACE;
+        }
+        getJavaFileInfo().setGeneratedFileTypes(gentype);
+
     }
     }
 
 
     /**
     /**
@@ -107,7 +126,8 @@ public class YangJavaModule
      */
      */
     @Override
     @Override
     public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
     public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
-        String modulePkg = getRootPackage(getVersion(), getNameSpace().getUri(), getRevision().getRevDate());
+        String modulePkg = getRootPackage(getVersion(), getNameSpace().getUri(), getRevision().getRevDate(),
+                yangPlugin.getConflictResolver());
         try {
         try {
             generateCodeOfRootNode(this, yangPlugin, modulePkg);
             generateCodeOfRootNode(this, yangPlugin, modulePkg);
         } catch (IOException e) {
         } catch (IOException e) {
@@ -121,6 +141,15 @@ public class YangJavaModule
      */
      */
     @Override
     @Override
     public void generateCodeExit() throws TranslatorException {
     public void generateCodeExit() throws TranslatorException {
+        /**
+         * As part of the notification support the following files needs to be generated.
+         * 1) Subject of the notification(event), this is simple interface with builder class.
+         * 2) Event class extending "AbstractEvent" and defining event type enum.
+         * 3) Event listener interface extending "EventListener".
+         * 4) Event subject class.
+         *
+         * The manager class needs to extend the "ListenerRegistry".
+         */
         try {
         try {
             getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_SERVICE_AND_MANAGER, this);
             getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_SERVICE_AND_MANAGER, this);
             searchAndDeleteTempDir(getJavaFileInfo().getBaseCodeGenPath() +
             searchAndDeleteTempDir(getJavaFileInfo().getBaseCodeGenPath() +
@@ -129,4 +158,53 @@ public class YangJavaModule
             throw new TranslatorException("Failed to generate code for module node " + this.getName());
             throw new TranslatorException("Failed to generate code for module node " + this.getName());
         }
         }
     }
     }
+
+    /**
+     * Returns notifications node list.
+     *
+     * @return notification nodes
+     */
+    public List<YangNode> getNotificationNodes() {
+        return notificationNodes;
+    }
+
+    /**
+     * Sets notifications list.
+     *
+     * @param notificationNodes notification list
+     */
+    private void setNotificationNodes(List<YangNode> notificationNodes) {
+        this.notificationNodes = notificationNodes;
+    }
+
+    /**
+     * Adds to notification node list.
+     *
+     * @param curNode notification node
+     */
+    private void addToNotificaitonList(YangNode curNode) {
+        getNotificationNodes().add(curNode);
+    }
+
+    /**
+     * Checks if there is any rpc defined in the module or sub-module.
+     *
+     * @param rootNode root node of the data model
+     * @return status of rpc's existence
+     */
+    public boolean isNotificationChildNodePresent(YangNode rootNode) {
+        YangNode childNode = rootNode.getChild();
+
+        while (childNode != null) {
+            if (childNode instanceof YangNotification) {
+                addToNotificaitonList(childNode);
+            }
+            childNode = childNode.getNextSibling();
+        }
+
+        if (!getNotificationNodes().isEmpty()) {
+            return true;
+        }
+        return false;
+    }
 }
 }

@@ -30,8 +30,6 @@ import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesCont
 import org.onosproject.yangutils.translator.tojava.utils.JavaExtendsListHolder;
 import org.onosproject.yangutils.translator.tojava.utils.JavaExtendsListHolder;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
-import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
-import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
@@ -62,8 +60,7 @@ public class YangJavaNotification
     public YangJavaNotification() {
     public YangJavaNotification() {
         super();
         super();
         setJavaFileInfo(new JavaFileInfo());
         setJavaFileInfo(new JavaFileInfo());
-        getJavaFileInfo().setGeneratedFileTypes(GENERATE_INTERFACE_WITH_BUILDER
-                | GENERATE_EVENT_CLASS | GENERATE_EVENT_LISTENER_INTERFACE);
+        getJavaFileInfo().setGeneratedFileTypes(GENERATE_INTERFACE_WITH_BUILDER);
     }
     }
 
 
     /**
     /**
@@ -167,17 +164,8 @@ public class YangJavaNotification
      */
      */
     @Override
     @Override
     public void generateCodeExit() throws TranslatorException {
     public void generateCodeExit() throws TranslatorException {
-        /**
-         * As part of the notification support the following files needs to be generated.
-         * 1) Subject of the notification(event), this is simple interface with builder class.
-         * 2) Event class extending "AbstractEvent" and defining event type enum.
-         * 3) Event listener interface extending "EventListener".
-         *
-         * The manager class needs to extend the "ListenerRegistry".
-         */
         try {
         try {
-            getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_INTERFACE_WITH_BUILDER
-                    | GENERATE_EVENT_CLASS | GENERATE_EVENT_LISTENER_INTERFACE, this);
+            getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_INTERFACE_WITH_BUILDER, this);
         } catch (IOException e) {
         } catch (IOException e) {
             throw new TranslatorException("Failed to generate code for notification node " + this.getName());
             throw new TranslatorException("Failed to generate code for notification node " + this.getName());
         }
         }

@@ -26,7 +26,7 @@ import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfNode;
+import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
 
 
 /**
 /**
  * Represents output information extended to support java code generation.
  * Represents output information extended to support java code generation.
@@ -46,6 +46,8 @@ public class YangJavaOutput
      */
      */
     private TempJavaCodeFragmentFiles tempFileHandle;
     private TempJavaCodeFragmentFiles tempFileHandle;
 
 
+    private boolean codeGenFlag;
+
     /**
     /**
      * Creates an instance of java output.
      * Creates an instance of java output.
      */
      */
@@ -108,7 +110,7 @@ public class YangJavaOutput
     @Override
     @Override
     public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
     public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
         try {
         try {
-            generateCodeOfNode(this, yangPlugin);
+            generateCodeOfAugmentableNode(this, yangPlugin);
         } catch (IOException e) {
         } catch (IOException e) {
             throw new TranslatorException(
             throw new TranslatorException(
                     "Failed to prepare generate code entry for output node " + this.getName());
                     "Failed to prepare generate code entry for output node " + this.getName());
@@ -124,10 +126,30 @@ public class YangJavaOutput
     @Override
     @Override
     public void generateCodeExit() throws TranslatorException {
     public void generateCodeExit() throws TranslatorException {
         try {
         try {
+            if (isCodeGenFlag()) {
                 getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_INTERFACE_WITH_BUILDER, this);
                 getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_INTERFACE_WITH_BUILDER, this);
+            }
         } catch (IOException e) {
         } catch (IOException e) {
             throw new TranslatorException(
             throw new TranslatorException(
                     "Failed to prepare generate code exit for output node " + this.getName());
                     "Failed to prepare generate code exit for output node " + this.getName());
         }
         }
     }
     }
+
+    /**
+     * Returns code generator flag.
+     *
+     * @return code generator flag
+     */
+    public boolean isCodeGenFlag() {
+        return codeGenFlag;
+    }
+
+    /**
+     * Sets code generator flag.
+     *
+     * @param codeGenFlag code generator flag
+     */
+    public void setCodeGenFlag(boolean codeGenFlag) {
+        this.codeGenFlag = codeGenFlag;
+    }
 }
 }

@@ -17,26 +17,36 @@
 package org.onosproject.yangutils.translator.tojava.javamodel;
 package org.onosproject.yangutils.translator.tojava.javamodel;
 
 
 import java.io.IOException;
 import java.io.IOException;
+import java.util.List;
 
 
 import org.onosproject.yangutils.datamodel.RpcNotificationContainer;
 import org.onosproject.yangutils.datamodel.RpcNotificationContainer;
 import org.onosproject.yangutils.datamodel.YangInput;
 import org.onosproject.yangutils.datamodel.YangInput;
+import org.onosproject.yangutils.datamodel.YangLeaf;
+import org.onosproject.yangutils.datamodel.YangLeafList;
+import org.onosproject.yangutils.datamodel.YangLeavesHolder;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangOutput;
 import org.onosproject.yangutils.datamodel.YangOutput;
 import org.onosproject.yangutils.datamodel.YangRpc;
 import org.onosproject.yangutils.datamodel.YangRpc;
+import org.onosproject.yangutils.datamodel.YangType;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaAttributeInfo;
 import org.onosproject.yangutils.translator.tojava.JavaAttributeInfo;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
-import org.onosproject.yangutils.translator.tojava.JavaImportData;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
+import static org.onosproject.yangutils.datamodel.YangNodeType.LIST_NODE;
 import static org.onosproject.yangutils.translator.tojava.JavaAttributeInfo.getAttributeInfoForTheData;
 import static org.onosproject.yangutils.translator.tojava.JavaAttributeInfo.getAttributeInfoForTheData;
 import static org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo.getQualifiedTypeInfoOfCurNode;
 import static org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo.getQualifiedTypeInfoOfCurNode;
+import static org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles.resolveGroupingsQuailifiedInfo;
+import static org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType.getJavaDataType;
+import static org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType.getJavaImportClass;
+import static org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType.getJavaImportPackage;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getParentNodeInGenCode;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getParentNodeInGenCode;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.updatePackageInfo;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.updatePackageInfo;
@@ -58,6 +68,11 @@ public class YangJavaRpc
      */
      */
     private TempJavaCodeFragmentFiles tempJavaCodeFragmentFiles;
     private TempJavaCodeFragmentFiles tempJavaCodeFragmentFiles;
 
 
+    private boolean isInputLeafHolder;
+    private boolean isOutputLeafHolder;
+    private boolean isInputSingleChildHolder;
+    private boolean isOutputSingleChildHolder;
+
     /**
     /**
      * Creates an instance of YANG java rpc.
      * Creates an instance of YANG java rpc.
      */
      */
@@ -67,6 +82,40 @@ public class YangJavaRpc
     }
     }
 
 
     /**
     /**
+     * Returns the generated java file information.
+     *
+     * @return generated java file information
+     */
+    @Override
+    public JavaFileInfo getJavaFileInfo() {
+
+        if (javaFileInfo == null) {
+            throw new TranslatorException("missing java info in java datamodel node");
+        }
+        return javaFileInfo;
+    }
+
+    /**
+     * Sets the java file info object.
+     *
+     * @param javaInfo java file info object
+     */
+    @Override
+    public void setJavaFileInfo(JavaFileInfo javaInfo) {
+        javaFileInfo = javaInfo;
+    }
+
+    @Override
+    public TempJavaCodeFragmentFiles getTempJavaCodeFragmentFiles() {
+        return tempJavaCodeFragmentFiles;
+    }
+
+    @Override
+    public void setTempJavaCodeFragmentFiles(TempJavaCodeFragmentFiles fileHandle) {
+        tempJavaCodeFragmentFiles = fileHandle;
+    }
+
+    /**
      * Prepares the information for java code generation corresponding to YANG
      * Prepares the information for java code generation corresponding to YANG
      * RPC info.
      * RPC info.
      *
      *
@@ -83,6 +132,12 @@ public class YangJavaRpc
         // Add package information for rpc and create corresponding folder.
         // Add package information for rpc and create corresponding folder.
         try {
         try {
             updatePackageInfo(this, yangPlugin);
             updatePackageInfo(this, yangPlugin);
+            if (this.getChild() != null) {
+                processNodeEntry(this.getChild(), yangPlugin);
+                if (this.getChild().getNextSibling() != null) {
+                    processNodeEntry(this.getChild().getNextSibling(), yangPlugin);
+                }
+            }
         } catch (IOException e) {
         } catch (IOException e) {
             throw new TranslatorException("Failed to prepare generate code entry for RPC node " + this.getName());
             throw new TranslatorException("Failed to prepare generate code entry for RPC node " + this.getName());
         }
         }
@@ -116,9 +171,10 @@ public class YangJavaRpc
         YangNode yangNode = this.getChild();
         YangNode yangNode = this.getChild();
         while (yangNode != null) {
         while (yangNode != null) {
             if (yangNode instanceof YangInput) {
             if (yangNode instanceof YangInput) {
-                javaAttributeInfoOfInput = getChildNodeAsAttributeInParentService(yangNode, this);
+                javaAttributeInfoOfInput = processNodeExit(yangNode, getJavaFileInfo().getPluginConfig());
+
             } else if (yangNode instanceof YangOutput) {
             } else if (yangNode instanceof YangOutput) {
-                javaAttributeInfoOfOutput = getChildNodeAsAttributeInParentService(yangNode, this);
+                javaAttributeInfoOfOutput = processNodeExit(yangNode, getJavaFileInfo().getPluginConfig());
             } else {
             } else {
                 // TODO throw exception
                 // TODO throw exception
             }
             }
@@ -135,7 +191,9 @@ public class YangJavaRpc
         try {
         try {
             ((TempJavaCodeFragmentFilesContainer) parent).getTempJavaCodeFragmentFiles().getServiceTempFiles()
             ((TempJavaCodeFragmentFilesContainer) parent).getTempJavaCodeFragmentFiles().getServiceTempFiles()
                     .addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfoOfInput, javaAttributeInfoOfOutput,
                     .addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfoOfInput, javaAttributeInfoOfOutput,
-                            ((YangNode) this).getName());
+                            ((JavaFileInfoContainer) parent).getJavaFileInfo().getPluginConfig(),
+                            ((YangNode) this).getName(), isInputLeafHolder(), isOutputLeafHolder(),
+                            isInputSingleChildHolder(), isOutputSingleChildHolder());
         } catch (IOException e) {
         } catch (IOException e) {
             throw new TranslatorException("Failed to generate code for RPC node " + this.getName());
             throw new TranslatorException("Failed to generate code for RPC node " + this.getName());
         }
         }
@@ -152,7 +210,7 @@ public class YangJavaRpc
      * @return AttributeInfo attribute details required to add in temporary
      * @return AttributeInfo attribute details required to add in temporary
      * files
      * files
      */
      */
-    public static JavaAttributeInfo getChildNodeAsAttributeInParentService(
+    public JavaAttributeInfo getChildNodeAsAttributeInParentService(
             YangNode childNode, YangNode currentNode) {
             YangNode childNode, YangNode currentNode) {
 
 
         YangNode parentNode = getParentNodeInGenCode(currentNode);
         YangNode parentNode = getParentNodeInGenCode(currentNode);
@@ -176,44 +234,368 @@ public class YangJavaRpc
         if (tempJavaFragmentFiles == null) {
         if (tempJavaFragmentFiles == null) {
             throw new TranslatorException("Parent node does not have service file info");
             throw new TranslatorException("Parent node does not have service file info");
         }
         }
-
-        JavaImportData parentImportData = tempJavaFragmentFiles.getJavaImportData();
-        boolean isQualified = parentImportData.addImportInfo(qualifiedTypeInfo);
+        boolean isQualified = addImportToService(qualifiedTypeInfo);
         return getAttributeInfoForTheData(qualifiedTypeInfo, childNodeName, null, isQualified, false);
         return getAttributeInfoForTheData(qualifiedTypeInfo, childNodeName, null, isQualified, false);
     }
     }
 
 
     /**
     /**
-     * Returns the generated java file information.
+     * Process input/output nodes.
      *
      *
-     * @return generated java file information
+     * @param node YANG node
+     * @param yangPluginConfig plugin configurations
      */
      */
-    @Override
-    public JavaFileInfo getJavaFileInfo() {
+    private void processNodeEntry(YangNode node, YangPluginConfig yangPluginConfig) {
+        YangLeavesHolder holder = (YangLeavesHolder) node;
+        if (node.getChild() == null) {
+            if (holder.getListOfLeaf() != null && holder.getListOfLeafList().isEmpty()
+                    && holder.getListOfLeaf().size() == 1) {
+                setCodeGenFlagForNode(node, false);
+            } else if (holder.getListOfLeaf().isEmpty() && holder.getListOfLeafList() != null
+                    && holder.getListOfLeafList().size() == 1) {
+                setCodeGenFlagForNode(node, false);
+            } else {
+                setCodeGenFlagForNode(node, true);
+            }
+        } else if (node.getChild() != null && holder.getListOfLeaf().isEmpty()
+                && holder.getListOfLeafList().isEmpty()) {
+            if (getNumberOfChildNodes(node) == 1) {
+                setCodeGenFlagForNode(node, false);
+            } else {
+                setCodeGenFlagForNode(node, true);
+            }
+        } else {
+            setCodeGenFlagForNode(node, true);
+        }
+    }
 
 
-        if (javaFileInfo == null) {
-            throw new TranslatorException("missing java info in java datamodel node");
+    /**
+     * Process input/output nodes.
+     *
+     * @param node YANG node
+     * @param yangPluginConfig plugin configurations
+     * @return java attribute info
+     */
+    private JavaAttributeInfo processNodeExit(YangNode node, YangPluginConfig yangPluginConfig) {
+        YangLeavesHolder holder = (YangLeavesHolder) node;
+        if (node.getChild() == null) {
+            if (holder.getListOfLeaf() != null && holder.getListOfLeafList().isEmpty()
+                    && holder.getListOfLeaf().size() == 1) {
+                return processNodeWhenOnlyOneLeafIsPresent(node, yangPluginConfig);
+
+            } else if (holder.getListOfLeaf().isEmpty() && holder.getListOfLeafList() != null
+                    && holder.getListOfLeafList().size() == 1) {
+                return processNodeWhenOnlyOneLeafListIsPresent(node, yangPluginConfig);
+            } else {
+                return processNodeWhenMultipleContaintsArePresent(node);
+            }
+        } else if (node.getChild() != null && holder.getListOfLeaf().isEmpty()
+                && holder.getListOfLeafList().isEmpty()) {
+            if (getNumberOfChildNodes(node) == 1) {
+                return processNodeWhenOnlyOneChildNodeIsPresent(node, yangPluginConfig);
+            } else {
+                return processNodeWhenMultipleContaintsArePresent(node);
+            }
+        } else {
+            return processNodeWhenMultipleContaintsArePresent(node);
         }
         }
-        return javaFileInfo;
     }
     }
 
 
     /**
     /**
-     * Sets the java file info object.
+     * Process input/output node when one leaf is present.
      *
      *
-     * @param javaInfo java file info object
+     * @param node input/output node
+     * @param yangPluginConfig plugin configurations
+     * @return java attribute for node
      */
      */
-    @Override
-    public void setJavaFileInfo(JavaFileInfo javaInfo) {
-        javaFileInfo = javaInfo;
+    private JavaAttributeInfo processNodeWhenOnlyOneLeafIsPresent(YangNode node,
+            YangPluginConfig yangPluginConfig) {
+
+        YangLeavesHolder holder = (YangLeavesHolder) node;
+        List<YangLeaf> listOfLeaves = holder.getListOfLeaf();
+
+        for (YangLeaf leaf : listOfLeaves) {
+            if (!(leaf instanceof JavaLeafInfoContainer)) {
+                throw new TranslatorException("Leaf does not have java information");
+            }
+            JavaLeafInfoContainer javaLeaf = (JavaLeafInfoContainer) leaf;
+            javaLeaf.setConflictResolveConfig(yangPluginConfig.getConflictResolver());
+            javaLeaf.updateJavaQualifiedInfo();
+            JavaAttributeInfo javaAttributeInfo = getAttributeInfoForTheData(
+                    javaLeaf.getJavaQualifiedInfo(),
+                    javaLeaf.getJavaName(yangPluginConfig.getConflictResolver()),
+                    javaLeaf.getDataType(),
+                    addTypeImport(javaLeaf.getDataType(), false, yangPluginConfig), false);
+            setLeafHolderFlag(node, true);
+            return javaAttributeInfo;
+        }
+        return null;
     }
     }
 
 
-    @Override
-    public TempJavaCodeFragmentFiles getTempJavaCodeFragmentFiles() {
-        return tempJavaCodeFragmentFiles;
+    /**
+     * Process input/output node when one leaf list is present.
+     *
+     * @param node input/output node
+     * @param yangPluginConfig plugin configurations
+     * @return java attribute for node
+     */
+    private JavaAttributeInfo processNodeWhenOnlyOneLeafListIsPresent(YangNode node,
+            YangPluginConfig yangPluginConfig) {
+
+        YangLeavesHolder holder = (YangLeavesHolder) node;
+        List<YangLeafList> listOfLeafList = holder.getListOfLeafList();
+
+        for (YangLeafList leafList : listOfLeafList) {
+            if (!(leafList instanceof JavaLeafInfoContainer)) {
+                throw new TranslatorException("Leaf-list does not have java information");
+            }
+            JavaLeafInfoContainer javaLeaf = (JavaLeafInfoContainer) leafList;
+            javaLeaf.setConflictResolveConfig(yangPluginConfig.getConflictResolver());
+            javaLeaf.updateJavaQualifiedInfo();
+            ((TempJavaCodeFragmentFilesContainer) this.getParent()).getTempJavaCodeFragmentFiles()
+                    .getServiceTempFiles().getJavaImportData().setIfListImported(true);
+            JavaAttributeInfo javaAttributeInfo = getAttributeInfoForTheData(
+                    javaLeaf.getJavaQualifiedInfo(),
+                    javaLeaf.getJavaName(yangPluginConfig.getConflictResolver()),
+                    javaLeaf.getDataType(),
+                    addTypeImport(javaLeaf.getDataType(), true, yangPluginConfig),
+                    true);
+            setLeafHolderFlag(node, true);
+            return javaAttributeInfo;
+        }
+        return null;
     }
     }
 
 
-    @Override
-    public void setTempJavaCodeFragmentFiles(TempJavaCodeFragmentFiles fileHandle) {
-        tempJavaCodeFragmentFiles = fileHandle;
+    /**
+     * Process input/output node when one child node is present.
+     *
+     * @param node input/output node
+     * @param yangPluginConfig plugin configurations
+     * @return java attribute for node
+     */
+    private JavaAttributeInfo processNodeWhenOnlyOneChildNodeIsPresent(YangNode node,
+            YangPluginConfig yangPluginConfig) {
+        JavaFileInfo rpcInfo = getJavaFileInfo();
+        String clsInfo = "";
+        JavaQualifiedTypeInfo childInfo = new JavaQualifiedTypeInfo();
+        if (node.getChild() instanceof YangJavaUses) {
+            childInfo = resolveGroupingsQuailifiedInfo(((YangJavaUses) node.getChild()).getRefGroup(),
+                    yangPluginConfig);
+            clsInfo = getCapitalCase(getCamelCase(((YangJavaUses) node.getChild()).getRefGroup().getName(),
+                    yangPluginConfig.getConflictResolver()));
+        } else {
+            String pkg = (rpcInfo.getPackage() + "." + rpcInfo.getJavaName() + "."
+                    + getCamelCase(node.getName(), yangPluginConfig.getConflictResolver())).toLowerCase();
+            clsInfo = getCapitalCase(
+                    getCamelCase(node.getChild().getName(), yangPluginConfig.getConflictResolver()));
+            childInfo.setPkgInfo(pkg);
+            childInfo.setClassInfo(clsInfo);
+        }
+        boolean isList = false;
+        if (node.getChild().getNodeType().equals(LIST_NODE)) {
+            isList = true;
+        }
+        boolean isQualified = addImportToService(childInfo);
+
+        JavaAttributeInfo javaAttributeInfo =
+                getAttributeInfoForTheData(childInfo, clsInfo, null, isQualified, isList);
+
+        setLeafHolderFlag(node, false);
+        setSingleChildHolderFlag(node, true);
+        return javaAttributeInfo;
+    }
+
+    /**
+     * Process input/output node when multiple leaf and child nodes are present.
+     *
+     * @param node input/output node
+     * @return java attribute for node
+     */
+    private JavaAttributeInfo processNodeWhenMultipleContaintsArePresent(YangNode node) {
+
+        setLeafHolderFlag(node, false);
+        setSingleChildHolderFlag(node, false);
+        return getChildNodeAsAttributeInParentService(node, this);
+    }
+
+    /**
+     * Adds type import to the RPC import list.
+     *
+     * @param type YANG type
+     * @param isList is list attribute
+     * @param pluginConfig plugin configurations
+     * @return type import to the RPC import list
+     */
+    private boolean addTypeImport(YangType<?> type, boolean isList, YangPluginConfig pluginConfig) {
+
+        String classInfo = getJavaImportClass(type, isList, pluginConfig.getConflictResolver());
+        if (classInfo == null) {
+            classInfo = getJavaDataType(type);
+            return false;
+        } else {
+            classInfo = getJavaImportClass(type, isList, pluginConfig.getConflictResolver());
+            String pkgInfo = getJavaImportPackage(type, isList, pluginConfig.getConflictResolver());
+            JavaQualifiedTypeInfo importInfo = new JavaQualifiedTypeInfo();
+            importInfo.setPkgInfo(pkgInfo);
+            importInfo.setClassInfo(classInfo);
+            if (!((JavaFileInfoContainer) this.getParent()).getJavaFileInfo().getJavaName().equals(classInfo)) {
+                return addImportToService(importInfo);
+            } else {
+                return true;
+            }
+        }
+    }
+
+    /**
+     * Adds to service class import list.
+     *
+     * @param importInfo import info
+     * @return true or false
+     */
+    private boolean addImportToService(JavaQualifiedTypeInfo importInfo) {
+        if (((TempJavaCodeFragmentFilesContainer) this.getParent()).getTempJavaCodeFragmentFiles()
+                .getServiceTempFiles().getJavaImportData().addImportInfo(importInfo)) {
+            return !((TempJavaCodeFragmentFilesContainer) this.getParent()).getTempJavaCodeFragmentFiles()
+                    .getServiceTempFiles().getJavaImportData().getImportSet().contains(importInfo);
+        } else {
+            return true;
+        }
+    }
+
+    /**
+     * Sets leaf holder flag for input/output.
+     *
+     * @param node input/output node
+     * @param flag true or false
+     */
+    private void setLeafHolderFlag(YangNode node, boolean flag) {
+        if (node instanceof YangJavaInput) {
+            setInputLeafHolder(flag);
+        } else {
+            setOutputLeafHolder(flag);
+        }
+    }
+
+    /**
+     * Sets sing child holder flag for input/output.
+     *
+     * @param node input/output node
+     * @param flag true or false
+     */
+    private void setSingleChildHolderFlag(YangNode node, boolean flag) {
+        if (node instanceof YangJavaInput) {
+            setInputSingleChildHolder(flag);
+        } else {
+            setOutputSingleChildHolder(flag);
+        }
+    }
+
+    /**
+     * Sets code generator flag for input and output.
+     *
+     * @param node YANG node
+     * @param flag cod generator flag
+     */
+    private void setCodeGenFlagForNode(YangNode node, boolean flag) {
+        if (node instanceof YangJavaInput) {
+            ((YangJavaInput) node).setCodeGenFlag(flag);
+        } else {
+            ((YangJavaOutput) node).setCodeGenFlag(flag);
+        }
+
+    }
+
+    /**
+     * Counts the number of child nodes of a YANG node.
+     *
+     * @param node YANG node
+     * @return count of children
+     */
+    private int getNumberOfChildNodes(YangNode node) {
+        YangNode tempNode = node.getChild();
+        int count = 0;
+        if (tempNode != null) {
+            count = 1;
+        }
+        while (tempNode != null) {
+
+            tempNode = tempNode.getNextSibling();
+            if (tempNode != null) {
+                count++;
+            }
+        }
+        return count;
+    }
+
+    /**
+     * Returns true if input is a leaf holder.
+     *
+     * @return true if input is a leaf holder
+     */
+    public boolean isInputLeafHolder() {
+        return isInputLeafHolder;
+    }
+
+    /**
+     * Sets true if input is a leaf holder.
+     *
+     * @param isInputLeafHolder true if input is a leaf holder
+     */
+    public void setInputLeafHolder(boolean isInputLeafHolder) {
+        this.isInputLeafHolder = isInputLeafHolder;
+    }
+
+    /**
+     * Returns true if output is a leaf holder.
+     *
+     * @return true if output is a leaf holder
+     */
+    public boolean isOutputLeafHolder() {
+        return isOutputLeafHolder;
+    }
+
+    /**
+     * Sets true if output is a leaf holder.
+     *
+     * @param isOutputLeafHolder true if output is a leaf holder
+     */
+    public void setOutputLeafHolder(boolean isOutputLeafHolder) {
+        this.isOutputLeafHolder = isOutputLeafHolder;
+    }
+
+    /**
+     * Returns true if input is single child holder.
+     *
+     * @return true if input is single child holder
+     */
+    public boolean isInputSingleChildHolder() {
+        return isInputSingleChildHolder;
+    }
+
+    /**
+     * Sets true if input is single child holder.
+     *
+     * @param isInputSingleChildHolder true if input is single child holder
+     */
+    public void setInputSingleChildHolder(boolean isInputSingleChildHolder) {
+        this.isInputSingleChildHolder = isInputSingleChildHolder;
+    }
+
+    /**
+     * Returns true if output is single child holder.
+     *
+     * @return true if output is single child holder
+     */
+    public boolean isOutputSingleChildHolder() {
+        return isOutputSingleChildHolder;
+    }
+
+    /**
+     * Sets true if output is single child holder.
+     *
+     * @param isOutputSingleChildHolder true if output is single child holder
+     */
+    public void setOutputSingleChildHolder(boolean isOutputSingleChildHolder) {
+        this.isOutputSingleChildHolder = isOutputSingleChildHolder;
     }
     }
 
 
 }
 }

@@ -16,8 +16,13 @@
 package org.onosproject.yangutils.translator.tojava.javamodel;
 package org.onosproject.yangutils.translator.tojava.javamodel;
 
 
 import java.io.IOException;
 import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
 import org.onosproject.yangutils.datamodel.YangBelongsTo;
 import org.onosproject.yangutils.datamodel.YangBelongsTo;
 import org.onosproject.yangutils.datamodel.YangModule;
 import org.onosproject.yangutils.datamodel.YangModule;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.YangNotification;
 import org.onosproject.yangutils.datamodel.YangSubModule;
 import org.onosproject.yangutils.datamodel.YangSubModule;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
@@ -25,6 +30,9 @@ import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getRootPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getRootPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfRootNode;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfRootNode;
@@ -49,12 +57,22 @@ public class YangJavaSubModule
     private TempJavaCodeFragmentFiles tempFileHandle;
     private TempJavaCodeFragmentFiles tempFileHandle;
 
 
     /**
     /**
+     * List of notifications nodes.
+     */
+    private List<YangNode> notificationNodes = new ArrayList<>();
+
+    /**
      * Creates YANG java sub module object.
      * Creates YANG java sub module object.
      */
      */
     public YangJavaSubModule() {
     public YangJavaSubModule() {
         super();
         super();
         setJavaFileInfo(new JavaFileInfo());
         setJavaFileInfo(new JavaFileInfo());
-        getJavaFileInfo().setGeneratedFileTypes(GENERATE_SERVICE_AND_MANAGER);
+        int gentype = GENERATE_SERVICE_AND_MANAGER;
+        if (isNotificationChildNodePresent(this)) {
+            gentype = GENERATE_SERVICE_AND_MANAGER | GENERATE_EVENT_SUBJECT_CLASS | GENERATE_EVENT_CLASS
+                    | GENERATE_EVENT_LISTENER_INTERFACE;
+        }
+        getJavaFileInfo().setGeneratedFileTypes(gentype);
     }
     }
 
 
     /**
     /**
@@ -121,7 +139,7 @@ public class YangJavaSubModule
     @Override
     @Override
     public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
     public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
         String subModulePkg = getRootPackage(getVersion(), getNameSpaceFromModule(getBelongsTo()),
         String subModulePkg = getRootPackage(getVersion(), getNameSpaceFromModule(getBelongsTo()),
-                getRevision().getRevDate());
+                getRevision().getRevDate(), yangPlugin.getConflictResolver());
         try {
         try {
             generateCodeOfRootNode(this, yangPlugin, subModulePkg);
             generateCodeOfRootNode(this, yangPlugin, subModulePkg);
         } catch (IOException e) {
         } catch (IOException e) {
@@ -136,6 +154,15 @@ public class YangJavaSubModule
      */
      */
     @Override
     @Override
     public void generateCodeExit() throws TranslatorException {
     public void generateCodeExit() throws TranslatorException {
+        /**
+         * As part of the notification support the following files needs to be generated.
+         * 1) Subject of the notification(event), this is simple interface with builder class.
+         * 2) Event class extending "AbstractEvent" and defining event type enum.
+         * 3) Event listener interface extending "EventListener".
+         * 4) Event subject class.
+         *
+         * The manager class needs to extend the "ListenerRegistry".
+         */
         try {
         try {
             getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_SERVICE_AND_MANAGER, this);
             getTempJavaCodeFragmentFiles().generateJavaFile(GENERATE_SERVICE_AND_MANAGER, this);
             searchAndDeleteTempDir(getJavaFileInfo().getBaseCodeGenPath() +
             searchAndDeleteTempDir(getJavaFileInfo().getBaseCodeGenPath() +
@@ -144,4 +171,44 @@ public class YangJavaSubModule
             throw new TranslatorException("Failed to generate code for submodule node " + this.getName());
             throw new TranslatorException("Failed to generate code for submodule node " + this.getName());
         }
         }
     }
     }
+
+    /**
+     * Returns notifications node list.
+     *
+     * @return notification nodes
+     */
+    public List<YangNode> getNotificationNodes() {
+        return notificationNodes;
+    }
+
+    /**
+     * Adds to notification node list.
+     *
+     * @param curNode notification node
+     */
+    private void addToNotificaitonList(YangNode curNode) {
+        getNotificationNodes().add(curNode);
+    }
+
+    /**
+     * Checks if there is any rpc defined in the module or sub-module.
+     *
+     * @param rootNode root node of the data model
+     * @return status of rpc's existence
+     */
+    public boolean isNotificationChildNodePresent(YangNode rootNode) {
+        YangNode childNode = rootNode.getChild();
+
+        while (childNode != null) {
+            if (childNode instanceof YangNotification) {
+                addToNotificaitonList(childNode);
+            }
+            childNode = childNode.getNextSibling();
+        }
+
+        if (!getNotificationNodes().isEmpty()) {
+            return true;
+        }
+        return false;
+    }
 }
 }

@@ -19,6 +19,7 @@ import org.onosproject.yangutils.datamodel.YangType;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType;
 import org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType;
+import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
 
 
 /**
 /**
  * Represents java information corresponding to the YANG type.
  * Represents java information corresponding to the YANG type.
@@ -40,13 +41,13 @@ public class YangJavaType<T>
     }
     }
 
 
     @Override
     @Override
-    public void updateJavaQualifiedInfo() {
+    public void updateJavaQualifiedInfo(YangToJavaNamingConflictUtil conflictResolver) {
         JavaQualifiedTypeInfo importInfo = getJavaQualifiedInfo();
         JavaQualifiedTypeInfo importInfo = getJavaQualifiedInfo();
 
 
         /*
         /*
          * Type is added as an attribute in the class.
          * Type is added as an attribute in the class.
          */
          */
-        String className = AttributesJavaDataType.getJavaImportClass(this, false);
+        String className = AttributesJavaDataType.getJavaImportClass(this, false, conflictResolver);
         if (className != null) {
         if (className != null) {
             /*
             /*
              * Corresponding to the attribute type a class needs to be imported,
              * Corresponding to the attribute type a class needs to be imported,
@@ -54,7 +55,7 @@ public class YangJavaType<T>
              */
              */
             importInfo.setClassInfo(className);
             importInfo.setClassInfo(className);
             String classPkg = AttributesJavaDataType.getJavaImportPackage(this,
             String classPkg = AttributesJavaDataType.getJavaImportPackage(this,
-                    false, className);
+                    false,  conflictResolver);
             if (classPkg == null) {
             if (classPkg == null) {
                 throw new TranslatorException("import package cannot be null when the class is used");
                 throw new TranslatorException("import package cannot be null when the class is used");
             }
             }

@@ -15,18 +15,113 @@
  */
  */
 package org.onosproject.yangutils.translator.tojava.javamodel;
 package org.onosproject.yangutils.translator.tojava.javamodel;
 
 
+import java.io.IOException;
+
 import org.onosproject.yangutils.datamodel.YangUses;
 import org.onosproject.yangutils.datamodel.YangUses;
+import org.onosproject.yangutils.translator.exception.TranslatorException;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
+import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
+import static org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles.addCurNodeInfoInParentTempFile;
 
 
 /**
 /**
  * Represents uses information extended to support java code generation.
  * Represents uses information extended to support java code generation.
  */
  */
 public class YangJavaUses
 public class YangJavaUses
-        extends YangUses {
+        extends YangUses implements JavaCodeGeneratorInfo, JavaCodeGenerator {
+
+
+    /**
+     * Contains the information of the java file being generated.
+     */
+    private JavaFileInfo javaFileInfo;
+
+    /**
+     * File handle to maintain temporary java code fragments as per the code
+     * snippet types.
+     */
+    private TempJavaCodeFragmentFiles tempFileHandle;
 
 
     /**
     /**
      * Creates YANG java uses object.
      * Creates YANG java uses object.
      */
      */
     public YangJavaUses() {
     public YangJavaUses() {
         super();
         super();
+        setJavaFileInfo(new JavaFileInfo());
+        getJavaFileInfo().setGeneratedFileTypes(GENERATE_INTERFACE_WITH_BUILDER);
+    }
+
+    /**
+     * Returns the generated java file information.
+     *
+     * @return generated java file information
+     */
+    @Override
+    public JavaFileInfo getJavaFileInfo() {
+        if (javaFileInfo == null) {
+            throw new TranslatorException("Missing java info in java datamodel node");
+        }
+        return javaFileInfo;
+    }
+
+    /**
+     * Sets the java file info object.
+     *
+     * @param javaInfo java file info object
+     */
+    @Override
+    public void setJavaFileInfo(JavaFileInfo javaInfo) {
+        javaFileInfo = javaInfo;
+    }
+
+    /**
+     * Returns the temporary file handle.
+     *
+     * @return temporary file handle
+     */
+    @Override
+    public TempJavaCodeFragmentFiles getTempJavaCodeFragmentFiles() {
+        return tempFileHandle;
     }
     }
+
+    /**
+     * Sets temporary file handle.
+     *
+     * @param fileHandle temporary file handle
+     */
+    @Override
+    public void setTempJavaCodeFragmentFiles(TempJavaCodeFragmentFiles fileHandle) {
+        tempFileHandle = fileHandle;
+    }
+
+    /**
+     * Prepare the information for java code generation corresponding to YANG
+     * uses info.
+     *
+     * @param yangPlugin YANG plugin config
+     * @throws TranslatorException translator operation fail
+     */
+    @Override
+    public void generateCodeEntry(YangPluginConfig yangPlugin) throws TranslatorException {
+        try {
+            addCurNodeInfoInParentTempFile(this, false, yangPlugin);
+        } catch (IOException e) {
+            throw new TranslatorException(
+                    "Failed to prepare generate code entry for container node " + this.getName());
+        }
+    }
+
+    /**
+     * Create a java file using the YANG uses info.
+     *
+     * @throws TranslatorException translator operation fail
+     */
+    @Override
+    public void generateCodeExit() throws TranslatorException {
+        // no code generation will be done for uses.
+    }
+
 }
 }

@@ -49,6 +49,7 @@ import static org.onosproject.yangutils.utils.UtilConstants.JAVA_MATH;
 import static org.onosproject.yangutils.utils.UtilConstants.LONG;
 import static org.onosproject.yangutils.utils.UtilConstants.LONG;
 import static org.onosproject.yangutils.utils.UtilConstants.LONG_WRAPPER;
 import static org.onosproject.yangutils.utils.UtilConstants.LONG_WRAPPER;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW;
+import static org.onosproject.yangutils.utils.UtilConstants.PARSE_BOOLEAN;
 import static org.onosproject.yangutils.utils.UtilConstants.PARSE_BYTE;
 import static org.onosproject.yangutils.utils.UtilConstants.PARSE_BYTE;
 import static org.onosproject.yangutils.utils.UtilConstants.PARSE_INT;
 import static org.onosproject.yangutils.utils.UtilConstants.PARSE_INT;
 import static org.onosproject.yangutils.utils.UtilConstants.PARSE_LONG;
 import static org.onosproject.yangutils.utils.UtilConstants.PARSE_LONG;
@@ -58,6 +59,10 @@ import static org.onosproject.yangutils.utils.UtilConstants.SHORT;
 import static org.onosproject.yangutils.utils.UtilConstants.SHORT_WRAPPER;
 import static org.onosproject.yangutils.utils.UtilConstants.SHORT_WRAPPER;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.STRING_DATA_TYPE;
 import static org.onosproject.yangutils.utils.UtilConstants.STRING_DATA_TYPE;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_BINARY_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_BITS_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_DECIMAL64_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_TYPES_PKG;
 
 
 /**
 /**
  * Represents java data types info corresponding to YANG type.
  * Represents java data types info corresponding to YANG type.
@@ -97,8 +102,10 @@ public final class AttributesJavaDataType {
                 return LONG;
                 return LONG;
             case UINT64:
             case UINT64:
                 return BIG_INTEGER;
                 return BIG_INTEGER;
+            case BINARY:
+                return YANG_BINARY_CLASS;
             case DECIMAL64:
             case DECIMAL64:
-                //TODO: DECIMAL64.
+                return YANG_DECIMAL64_CLASS;
             case STRING:
             case STRING:
                 return STRING_DATA_TYPE;
                 return STRING_DATA_TYPE;
             case BOOLEAN:
             case BOOLEAN:
@@ -136,18 +143,16 @@ public final class AttributesJavaDataType {
                 return LONG_WRAPPER + PERIOD + PARSE_LONG;
                 return LONG_WRAPPER + PERIOD + PARSE_LONG;
             case UINT64:
             case UINT64:
                 return NEW + SPACE + BIG_INTEGER;
                 return NEW + SPACE + BIG_INTEGER;
-            case DECIMAL64:
-                //TODO: DECIMAL64.
             case STRING:
             case STRING:
                 return EMPTY_STRING;
                 return EMPTY_STRING;
+            case EMPTY:
             case BOOLEAN:
             case BOOLEAN:
-                return BOOLEAN_DATA_TYPE;
-            case ENUMERATION:
-                //TODO:ENUMERATION.
+                return BOOLEAN_WRAPPER + PERIOD + PARSE_BOOLEAN;
+            case DECIMAL64:
             case BITS:
             case BITS:
-                //TODO:BITS
             case BINARY:
             case BINARY:
-                //TODO:BINARY
+            case UNION:
+            case ENUMERATION:
             case DERIVED:
             case DERIVED:
                 return targetDataType + PERIOD + FROM_STRING_METHOD_NAME;
                 return targetDataType + PERIOD + FROM_STRING_METHOD_NAME;
             default:
             default:
@@ -160,9 +165,11 @@ public final class AttributesJavaDataType {
      *
      *
      * @param yangType YANG type
      * @param yangType YANG type
      * @param isListAttr if the attribute need to be a list
      * @param isListAttr if the attribute need to be a list
+     * @param pluginConfig plugin configurations
      * @return java import class
      * @return java import class
      */
      */
-    public static String getJavaImportClass(YangType<?> yangType, boolean isListAttr) {
+    public static String getJavaImportClass(YangType<?> yangType, boolean isListAttr,
+            YangToJavaNamingConflictUtil pluginConfig) {
 
 
         YangDataTypes type = yangType.getDataType();
         YangDataTypes type = yangType.getDataType();
 
 
@@ -185,21 +192,19 @@ public final class AttributesJavaDataType {
                 case UINT64:
                 case UINT64:
                     return BIG_INTEGER;
                     return BIG_INTEGER;
                 case DECIMAL64:
                 case DECIMAL64:
-                    //TODO: DECIMAL64.
-                    break;
+                    return YANG_DECIMAL64_CLASS;
                 case STRING:
                 case STRING:
                     return STRING_DATA_TYPE;
                     return STRING_DATA_TYPE;
                 case BOOLEAN:
                 case BOOLEAN:
                     return BOOLEAN_WRAPPER;
                     return BOOLEAN_WRAPPER;
                 case ENUMERATION:
                 case ENUMERATION:
                     return getCapitalCase(
                     return getCapitalCase(
-                            getCamelCase(((YangJavaEnumeration) yangType.getDataTypeExtendedInfo()).getName(), null));
+                        getCamelCase(((YangJavaEnumeration) yangType.getDataTypeExtendedInfo()).getName(),
+                                pluginConfig));
                 case BITS:
                 case BITS:
-                    //TODO:BITS
-                    break;
+                    return YANG_BITS_CLASS;
                 case BINARY:
                 case BINARY:
-                    //TODO:BINARY
-                    break;
+                    return YANG_BINARY_CLASS;
                 case LEAFREF:
                 case LEAFREF:
                     //TODO:LEAFREF
                     //TODO:LEAFREF
                     break;
                     break;
@@ -210,11 +215,13 @@ public final class AttributesJavaDataType {
                     return BOOLEAN_WRAPPER;
                     return BOOLEAN_WRAPPER;
                 case UNION:
                 case UNION:
                     return getCapitalCase(getCamelCase(((YangJavaUnion) yangType.getDataTypeExtendedInfo()).getName(),
                     return getCapitalCase(getCamelCase(((YangJavaUnion) yangType.getDataTypeExtendedInfo()).getName(),
-                            null));
+                        pluginConfig));
                 case INSTANCE_IDENTIFIER:
                 case INSTANCE_IDENTIFIER:
                     //TODO:INSTANCE_IDENTIFIER
                     //TODO:INSTANCE_IDENTIFIER
+                    break;
                 case DERIVED:
                 case DERIVED:
-                    return getCapitalCase(getCamelCase(yangType.getDataTypeName(), null));
+                return getCapitalCase(
+                        getCamelCase(yangType.getDataTypeName(), pluginConfig));
                 default:
                 default:
                     throw new TranslatorException("given data type is not supported.");
                     throw new TranslatorException("given data type is not supported.");
             }
             }
@@ -223,19 +230,17 @@ public final class AttributesJavaDataType {
                 case UINT64:
                 case UINT64:
                     return BIG_INTEGER;
                     return BIG_INTEGER;
                 case DECIMAL64:
                 case DECIMAL64:
-                    //TODO: DECIMAL64.
-                    break;
+                    return YANG_DECIMAL64_CLASS;
                 case STRING:
                 case STRING:
                     return STRING_DATA_TYPE;
                     return STRING_DATA_TYPE;
                 case ENUMERATION:
                 case ENUMERATION:
                     return getCapitalCase(
                     return getCapitalCase(
-                            getCamelCase(((YangJavaEnumeration) yangType.getDataTypeExtendedInfo()).getName(), null));
+                        getCamelCase(((YangJavaEnumeration) yangType.getDataTypeExtendedInfo()).getName(),
+                                pluginConfig));
                 case BITS:
                 case BITS:
-                    //TODO:BITS
-                    break;
+                    return YANG_BITS_CLASS;
                 case BINARY:
                 case BINARY:
-                    //TODO:BINARY
-                    break;
+                    return YANG_BINARY_CLASS;
                 case LEAFREF:
                 case LEAFREF:
                     //TODO:LEAFREF
                     //TODO:LEAFREF
                     break;
                     break;
@@ -243,16 +248,16 @@ public final class AttributesJavaDataType {
                     //TODO:IDENTITYREF
                     //TODO:IDENTITYREF
                     break;
                     break;
                 case EMPTY:
                 case EMPTY:
-                    //TODO:EMPTY
-                    break;
+                    return BOOLEAN_DATA_TYPE;
                 case UNION:
                 case UNION:
                     return getCapitalCase(getCamelCase(((YangJavaUnion) yangType.getDataTypeExtendedInfo()).getName(),
                     return getCapitalCase(getCamelCase(((YangJavaUnion) yangType.getDataTypeExtendedInfo()).getName(),
-                            null));
+                        pluginConfig));
                 case INSTANCE_IDENTIFIER:
                 case INSTANCE_IDENTIFIER:
                     //TODO:INSTANCE_IDENTIFIER
                     //TODO:INSTANCE_IDENTIFIER
                     break;
                     break;
                 case DERIVED:
                 case DERIVED:
-                    return getCapitalCase(getCamelCase(yangType.getDataTypeName(), null));
+                return getCapitalCase(
+                        getCamelCase(yangType.getDataTypeName(), pluginConfig));
                 default:
                 default:
                     return null;
                     return null;
             }
             }
@@ -265,10 +270,11 @@ public final class AttributesJavaDataType {
      *
      *
      * @param yangType YANG type
      * @param yangType YANG type
      * @param isListAttr if the attribute is of list type
      * @param isListAttr if the attribute is of list type
-     * @param classInfo  java import class info
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return java import package
      * @return java import package
      */
      */
-    public static String getJavaImportPackage(YangType<?> yangType, boolean isListAttr, String classInfo) {
+    public static String getJavaImportPackage(YangType<?> yangType, boolean isListAttr,
+            YangToJavaNamingConflictUtil conflictResolver) {
 
 
         YangDataTypes type = yangType.getDataType();
         YangDataTypes type = yangType.getDataType();
 
 
@@ -283,36 +289,29 @@ public final class AttributesJavaDataType {
                 case UINT32:
                 case UINT32:
                 case STRING:
                 case STRING:
                 case BOOLEAN:
                 case BOOLEAN:
+                case EMPTY:
                     return JAVA_LANG;
                     return JAVA_LANG;
                 case UINT64:
                 case UINT64:
                     return JAVA_MATH;
                     return JAVA_MATH;
-                case DECIMAL64:
-                    //TODO: DECIMAL64.
-                    break;
                 case ENUMERATION:
                 case ENUMERATION:
-                    return getEnumsPackage(yangType);
+                    return getEnumsPackage(yangType, conflictResolver);
+                case DECIMAL64:
                 case BITS:
                 case BITS:
-                    //TODO:BITS
-                    break;
                 case BINARY:
                 case BINARY:
-                    //TODO:BINARY
-                    break;
+                    return YANG_TYPES_PKG;
                 case LEAFREF:
                 case LEAFREF:
                     //TODO:LEAFREF
                     //TODO:LEAFREF
                     break;
                     break;
                 case IDENTITYREF:
                 case IDENTITYREF:
                     //TODO:IDENTITYREF
                     //TODO:IDENTITYREF
                     break;
                     break;
-                case EMPTY:
-                    //TODO:EMPTY
-                    break;
                 case UNION:
                 case UNION:
-                    return getUnionPackage(yangType);
+                    return getUnionPackage(yangType, conflictResolver);
                 case INSTANCE_IDENTIFIER:
                 case INSTANCE_IDENTIFIER:
                     //TODO:INSTANCE_IDENTIFIER
                     //TODO:INSTANCE_IDENTIFIER
                     break;
                     break;
                 case DERIVED:
                 case DERIVED:
-                    return getTypDefsPackage(yangType);
+                    return getTypDefsPackage(yangType, conflictResolver);
                 default:
                 default:
                     throw new TranslatorException("given data type is not supported.");
                     throw new TranslatorException("given data type is not supported.");
             }
             }
@@ -320,19 +319,14 @@ public final class AttributesJavaDataType {
             switch (type) {
             switch (type) {
                 case UINT64:
                 case UINT64:
                     return JAVA_MATH;
                     return JAVA_MATH;
-                case DECIMAL64:
-                    //TODO: DECIMAL64
-                    break;
                 case STRING:
                 case STRING:
                     return JAVA_LANG;
                     return JAVA_LANG;
                 case ENUMERATION:
                 case ENUMERATION:
-                    return getEnumsPackage(yangType);
+                    return getEnumsPackage(yangType, conflictResolver);
+                case DECIMAL64:
                 case BITS:
                 case BITS:
-                    //TODO:BITS
-                    break;
                 case BINARY:
                 case BINARY:
-                    //TODO:BINARY
-                    break;
+                    return YANG_TYPES_PKG;
                 case LEAFREF:
                 case LEAFREF:
                     //TODO:LEAFREF
                     //TODO:LEAFREF
                     break;
                     break;
@@ -340,15 +334,14 @@ public final class AttributesJavaDataType {
                     //TODO:IDENTITYREF
                     //TODO:IDENTITYREF
                     break;
                     break;
                 case EMPTY:
                 case EMPTY:
-                    //TODO:EMPTY
-                    break;
+                    return JAVA_LANG;
                 case UNION:
                 case UNION:
-                    return getUnionPackage(yangType);
+                    return getUnionPackage(yangType, conflictResolver);
                 case INSTANCE_IDENTIFIER:
                 case INSTANCE_IDENTIFIER:
                     //TODO:INSTANCE_IDENTIFIER
                     //TODO:INSTANCE_IDENTIFIER
                     break;
                     break;
                 case DERIVED:
                 case DERIVED:
-                    return getTypDefsPackage(yangType);
+                    return getTypDefsPackage(yangType, conflictResolver);
                 default:
                 default:
                     return null;
                     return null;
             }
             }
@@ -360,9 +353,10 @@ public final class AttributesJavaDataType {
      * Returns java package for typedef node.
      * Returns java package for typedef node.
      *
      *
      * @param type YANG type
      * @param type YANG type
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return java package for typedef node
      * @return java package for typedef node
      */
      */
-    private static String getTypDefsPackage(YangType<?> type) {
+    private static String getTypDefsPackage(YangType<?> type, YangToJavaNamingConflictUtil conflictResolver) {
         Object var = type.getDataTypeExtendedInfo();
         Object var = type.getDataTypeExtendedInfo();
         if (!(var instanceof YangDerivedInfo)) {
         if (!(var instanceof YangDerivedInfo)) {
             throw new TranslatorException("type should have been derived.");
             throw new TranslatorException("type should have been derived.");
@@ -374,7 +368,7 @@ public final class AttributesJavaDataType {
 
 
         YangJavaTypeDef typedef = (YangJavaTypeDef) ((YangDerivedInfo<?>) var).getReferredTypeDef();
         YangJavaTypeDef typedef = (YangJavaTypeDef) ((YangDerivedInfo<?>) var).getReferredTypeDef();
         if (typedef.getJavaFileInfo().getPackage() == null) {
         if (typedef.getJavaFileInfo().getPackage() == null) {
-            return getPackageFromParent(typedef.getParent());
+            return getPackageFromParent(typedef.getParent(), conflictResolver);
         }
         }
         return typedef.getJavaFileInfo().getPackage();
         return typedef.getJavaFileInfo().getPackage();
     }
     }
@@ -383,9 +377,10 @@ public final class AttributesJavaDataType {
      * Returns java package for union node.
      * Returns java package for union node.
      *
      *
      * @param type YANG type
      * @param type YANG type
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return java package for union node
      * @return java package for union node
      */
      */
-    private static String getUnionPackage(YangType<?> type) {
+    private static String getUnionPackage(YangType<?> type, YangToJavaNamingConflictUtil conflictResolver) {
 
 
         if (!(type.getDataTypeExtendedInfo() instanceof YangUnion)) {
         if (!(type.getDataTypeExtendedInfo() instanceof YangUnion)) {
             throw new TranslatorException("type should have been union.");
             throw new TranslatorException("type should have been union.");
@@ -393,7 +388,7 @@ public final class AttributesJavaDataType {
 
 
         YangJavaUnion union = (YangJavaUnion) type.getDataTypeExtendedInfo();
         YangJavaUnion union = (YangJavaUnion) type.getDataTypeExtendedInfo();
         if (union.getJavaFileInfo().getPackage() == null) {
         if (union.getJavaFileInfo().getPackage() == null) {
-            return getPackageFromParent(union.getParent());
+            return getPackageFromParent(union.getParent(), conflictResolver);
         }
         }
         return union.getJavaFileInfo().getPackage();
         return union.getJavaFileInfo().getPackage();
     }
     }
@@ -402,16 +397,17 @@ public final class AttributesJavaDataType {
      * Returns YANG enumeration's java package.
      * Returns YANG enumeration's java package.
      *
      *
      * @param type YANG type
      * @param type YANG type
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return YANG enumeration's java package
      * @return YANG enumeration's java package
      */
      */
-    private static String getEnumsPackage(YangType<?> type) {
+    private static String getEnumsPackage(YangType<?> type, YangToJavaNamingConflictUtil conflictResolver) {
 
 
         if (!(type.getDataTypeExtendedInfo() instanceof YangEnumeration)) {
         if (!(type.getDataTypeExtendedInfo() instanceof YangEnumeration)) {
             throw new TranslatorException("type should have been enumeration.");
             throw new TranslatorException("type should have been enumeration.");
         }
         }
         YangJavaEnumeration enumeration = (YangJavaEnumeration) type.getDataTypeExtendedInfo();
         YangJavaEnumeration enumeration = (YangJavaEnumeration) type.getDataTypeExtendedInfo();
         if (enumeration.getJavaFileInfo().getPackage() == null) {
         if (enumeration.getJavaFileInfo().getPackage() == null) {
-            return getPackageFromParent(enumeration.getParent());
+            return getPackageFromParent(enumeration.getParent(), conflictResolver);
         }
         }
         return enumeration.getJavaFileInfo().getPackage();
         return enumeration.getJavaFileInfo().getPackage();
     }
     }
@@ -420,9 +416,10 @@ public final class AttributesJavaDataType {
      * Returns package from parent node.
      * Returns package from parent node.
      *
      *
      * @param parent parent YANG node
      * @param parent parent YANG node
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return java package from parent node
      * @return java package from parent node
      */
      */
-    private static String getPackageFromParent(YangNode parent) {
+    private static String getPackageFromParent(YangNode parent, YangToJavaNamingConflictUtil conflictResolver) {
         if (!(parent instanceof JavaFileInfoContainer)) {
         if (!(parent instanceof JavaFileInfoContainer)) {
             throw new TranslatorException("invalid child node is being processed.");
             throw new TranslatorException("invalid child node is being processed.");
         }
         }
@@ -431,14 +428,14 @@ public final class AttributesJavaDataType {
             if (parent instanceof YangJavaModule) {
             if (parent instanceof YangJavaModule) {
                 YangJavaModule module = (YangJavaModule) parent;
                 YangJavaModule module = (YangJavaModule) parent;
                 String modulePkg = getRootPackage(module.getVersion(), module.getNameSpace().getUri(), module
                 String modulePkg = getRootPackage(module.getVersion(), module.getNameSpace().getUri(), module
-                        .getRevision().getRevDate());
-                return modulePkg + PERIOD + getCamelCase(module.getName(), null).toLowerCase();
+                        .getRevision().getRevDate(), conflictResolver);
+                return modulePkg + PERIOD + getCamelCase(module.getName(), conflictResolver).toLowerCase();
             } else if (parent instanceof YangJavaSubModule) {
             } else if (parent instanceof YangJavaSubModule) {
                 YangJavaSubModule submodule = (YangJavaSubModule) parent;
                 YangJavaSubModule submodule = (YangJavaSubModule) parent;
                 String subModulePkg = getRootPackage(submodule.getVersion(),
                 String subModulePkg = getRootPackage(submodule.getVersion(),
                         submodule.getNameSpaceFromModule(submodule.getBelongsTo()),
                         submodule.getNameSpaceFromModule(submodule.getBelongsTo()),
-                        submodule.getRevision().getRevDate());
-                return subModulePkg + PERIOD + getCamelCase(submodule.getName(), null).toLowerCase();
+                        submodule.getRevision().getRevDate(), conflictResolver);
+                return subModulePkg + PERIOD + getCamelCase(submodule.getName(), conflictResolver).toLowerCase();
             }
             }
         }
         }
         return parentInfo.getPackage() + PERIOD + parentInfo.getJavaName().toLowerCase();
         return parentInfo.getPackage() + PERIOD + parentInfo.getJavaName().toLowerCase();

@@ -17,7 +17,6 @@
 package org.onosproject.yangutils.translator.tojava.utils;
 package org.onosproject.yangutils.translator.tojava.utils;
 
 
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
-import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaNotification;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaNotification;
@@ -27,12 +26,12 @@ import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.IMPL_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.IMPL_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.INTERFACE_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.INTERFACE_MASK;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
@@ -54,8 +53,10 @@ import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.OPEN_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.OPEN_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
 import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
+import static org.onosproject.yangutils.utils.UtilConstants.REGEX_FOR_ANY_STRING_ENDING_WITH_SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
+import static org.onosproject.yangutils.utils.UtilConstants.SUBJECT;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
 
 
 /**
 /**
@@ -95,8 +96,6 @@ public final class ClassDefinitionGenerator {
             return getTypeClassDefinition(yangName);
             return getTypeClassDefinition(yangName);
         case GENERATE_ENUM_CLASS:
         case GENERATE_ENUM_CLASS:
             return getEnumClassDefinition(yangName);
             return getEnumClassDefinition(yangName);
-        case GENERATE_EVENT_LISTENER_INTERFACE:
-            return getEventListenerDefinition(yangName);
         default:
         default:
             return null;
             return null;
         }
         }
@@ -123,9 +122,12 @@ public final class ClassDefinitionGenerator {
         case GENERATE_SERVICE_AND_MANAGER:
         case GENERATE_SERVICE_AND_MANAGER:
             return getRpcInterfaceDefinition(yangName, curNode);
             return getRpcInterfaceDefinition(yangName, curNode);
         case GENERATE_EVENT_CLASS:
         case GENERATE_EVENT_CLASS:
-            String eventName = getCapitalCase(((JavaFileInfoContainer) curNode)
-                    .getJavaFileInfo().getJavaName());
+            String eventName = yangName + SUBJECT;
             return getEventDefinition(yangName, eventName);
             return getEventDefinition(yangName, eventName);
+        case GENERATE_EVENT_LISTENER_INTERFACE:
+            return getEventListenerDefinition(yangName);
+        case GENERATE_EVENT_SUBJECT_CLASS:
+            return getClassDefinition(yangName);
         default:
         default:
             return null;
             return null;
         }
         }
@@ -183,7 +185,6 @@ public final class ClassDefinitionGenerator {
      * Returns builder file class definition.
      * Returns builder file class definition.
      *
      *
      * @param yangName file name
      * @param yangName file name
-     * @param genFileTypes
      * @return definition
      * @return definition
      */
      */
     private static String getBuilderClassDefinition(String yangName) {
     private static String getBuilderClassDefinition(String yangName) {
@@ -198,8 +199,18 @@ public final class ClassDefinitionGenerator {
      * @return definition
      * @return definition
      */
      */
     private static String getImplClassDefinition(String yangName) {
     private static String getImplClassDefinition(String yangName) {
-        return PUBLIC + SPACE + FINAL + SPACE + CLASS + SPACE + yangName + IMPL + SPACE + IMPLEMENTS + SPACE + yangName
-                + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
+        return PUBLIC + SPACE + FINAL + SPACE + CLASS + SPACE + yangName + IMPL + SPACE + IMPLEMENTS + SPACE
+                + yangName + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
+    }
+
+    /**
+     * Returns impl file class definition.
+     *
+     * @param yangName file name
+     * @return definition
+     */
+    private static String getClassDefinition(String yangName) {
+        return PUBLIC + SPACE + CLASS + SPACE + yangName + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
     }
     }
 
 
     /**
     /**
@@ -231,27 +242,28 @@ public final class ClassDefinitionGenerator {
                 curNode = curNode.getNextSibling();
                 curNode = curNode.getNextSibling();
             }
             }
         }
         }
-        if (yangName.contains(SERVICE)) {
+        if (yangName.matches(REGEX_FOR_ANY_STRING_ENDING_WITH_SERVICE)) {
             return PUBLIC + SPACE + INTERFACE + SPACE + yangName + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
             return PUBLIC + SPACE + INTERFACE + SPACE + yangName + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
         }
         }
-        return PUBLIC + SPACE + CLASS + SPACE + yangName + MANAGER + SPACE + IMPLEMENTS + SPACE + yangName
-                + SERVICE + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
+        return PUBLIC + SPACE + CLASS + SPACE + yangName + SPACE + IMPLEMENTS + SPACE
+                + yangName.substring(0, yangName.length() - 7) + SERVICE + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
     }
     }
 
 
     /* Provides class definition when RPC interface needs to extends any event.*/
     /* Provides class definition when RPC interface needs to extends any event.*/
     private static String getRpcInterfaceDefinitionWhenItExtends(String yangName,
     private static String getRpcInterfaceDefinitionWhenItExtends(String yangName,
             JavaExtendsListHolder holder) {
             JavaExtendsListHolder holder) {
 
 
-        if (yangName.contains(SERVICE)) {
+        if (yangName.matches(REGEX_FOR_ANY_STRING_ENDING_WITH_SERVICE)) {
             String[] strArray = yangName.split(SERVICE);
             String[] strArray = yangName.split(SERVICE);
-            return PUBLIC + SPACE + INTERFACE + SPACE + yangName + SPACE + NEW_LINE + EIGHT_SPACE_INDENTATION
+            return PUBLIC + SPACE + INTERFACE + SPACE + yangName + NEW_LINE + EIGHT_SPACE_INDENTATION
                     + EXTEND + SPACE + LISTENER_SERVICE + DIAMOND_OPEN_BRACKET + strArray[0] + EVENT_STRING + COMMA
                     + EXTEND + SPACE + LISTENER_SERVICE + DIAMOND_OPEN_BRACKET + strArray[0] + EVENT_STRING + COMMA
                     + SPACE + strArray[0] + EVENT_LISTENER_STRING + DIAMOND_CLOSE_BRACKET + SPACE
                     + SPACE + strArray[0] + EVENT_LISTENER_STRING + DIAMOND_CLOSE_BRACKET + SPACE
                     + OPEN_CURLY_BRACKET + NEW_LINE;
                     + OPEN_CURLY_BRACKET + NEW_LINE;
         }
         }
-        return PUBLIC + SPACE + CLASS + SPACE + yangName + MANAGER + SPACE + NEW_LINE + EIGHT_SPACE_INDENTATION
+        yangName = yangName.substring(0, yangName.length() - 7);
+        return PUBLIC + SPACE + CLASS + SPACE + yangName + MANAGER + NEW_LINE + EIGHT_SPACE_INDENTATION
                 + EXTEND + SPACE + LISTENER_REG + DIAMOND_OPEN_BRACKET + yangName + EVENT_STRING + COMMA + SPACE
                 + EXTEND + SPACE + LISTENER_REG + DIAMOND_OPEN_BRACKET + yangName + EVENT_STRING + COMMA + SPACE
-                + yangName + EVENT_LISTENER_STRING + DIAMOND_CLOSE_BRACKET + SPACE + NEW_LINE
+                + yangName + EVENT_LISTENER_STRING + DIAMOND_CLOSE_BRACKET + NEW_LINE
                 + EIGHT_SPACE_INDENTATION + IMPLEMENTS + SPACE + yangName + SERVICE + SPACE + OPEN_CURLY_BRACKET
                 + EIGHT_SPACE_INDENTATION + IMPLEMENTS + SPACE + yangName + SERVICE + SPACE + OPEN_CURLY_BRACKET
                 + NEW_LINE;
                 + NEW_LINE;
     }
     }

@@ -115,7 +115,7 @@ public final class JavaCodeSnippetGen {
      * @param type attribute type
      * @param type attribute type
      * @return list attribute string
      * @return list attribute string
      */
      */
-    private static String getListAttribute(String type) {
+    public static String getListAttribute(String type) {
         return LIST + DIAMOND_OPEN_BRACKET + type + DIAMOND_CLOSE_BRACKET;
         return LIST + DIAMOND_OPEN_BRACKET + type + DIAMOND_CLOSE_BRACKET;
     }
     }
 
 
@@ -145,10 +145,11 @@ public final class JavaCodeSnippetGen {
      *
      *
      * @param name name of attribute
      * @param name name of attribute
      * @param value value of the enum
      * @param value value of the enum
+     * @param pluginConfig plugin configurations
      * @return string for enum's attribute
      * @return string for enum's attribute
      */
      */
-    public static String generateEnumAttributeString(String name, int value) {
-        return getJavaDoc(ENUM_ATTRIBUTE, name, false) + FOUR_SPACE_INDENTATION
+    public static String generateEnumAttributeString(String name, int value, YangPluginConfig pluginConfig) {
+        return getJavaDoc(ENUM_ATTRIBUTE, name, false, pluginConfig) + FOUR_SPACE_INDENTATION
                 + getEnumJavaAttribute(name).toUpperCase() + OPEN_PARENTHESIS
                 + getEnumJavaAttribute(name).toUpperCase() + OPEN_PARENTHESIS
                 + value + CLOSE_PARENTHESIS + COMMA + NEW_LINE;
                 + value + CLOSE_PARENTHESIS + COMMA + NEW_LINE;
     }
     }

@@ -27,18 +27,7 @@ import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
 import org.onosproject.yangutils.translator.tojava.JavaImportData;
 import org.onosproject.yangutils.translator.tojava.JavaImportData;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 
 
-import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.getTempJavaFragement;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.getTempJavaFragement;
-import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
-import static org.onosproject.yangutils.utils.UtilConstants.DIAMOND_CLOSE_BRACKET;
-import static org.onosproject.yangutils.utils.UtilConstants.DIAMOND_OPEN_BRACKET;
-import static org.onosproject.yangutils.utils.UtilConstants.EVENT_LISTENER_STRING;
-import static org.onosproject.yangutils.utils.UtilConstants.EVENT_STRING;
-import static org.onosproject.yangutils.utils.UtilConstants.EXTEND;
-import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_REG;
-import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
-import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
-import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 
 
 /**
 /**
  * Represent the extends list for generated java classes. It holds the class details which needs
  * Represent the extends list for generated java classes. It holds the class details which needs
@@ -87,6 +76,7 @@ public class JavaExtendsListHolder {
         if (!fileInfo.getPackage().equals(info.getPkgInfo())) {
         if (!fileInfo.getPackage().equals(info.getPkgInfo())) {
             JavaImportData importData = getTempJavaFragement(node).getJavaImportData();
             JavaImportData importData = getTempJavaFragement(node).getJavaImportData();
             importData.addImportInfo(info);
             importData.addImportInfo(info);
+
             /*true means import should be added*/
             /*true means import should be added*/
             getExtendedClassStore().put(info, true);
             getExtendedClassStore().put(info, true);
         }
         }
@@ -95,33 +85,6 @@ public class JavaExtendsListHolder {
     }
     }
 
 
     /**
     /**
-     * Returns extends string for class.
-     *
-     * @param genFileType generated file type
-     * @param className class name
-     * @param isNotificationPresent if notification node is present
-     * @return extends string
-     */
-    public String getExtendsString(int genFileType, String className, boolean isNotificationPresent) {
-        String extend = EXTEND + SPACE;
-        if (genFileType == GENERATE_SERVICE_AND_MANAGER && isNotificationPresent) {
-            extend = extend + LISTENER_REG + DIAMOND_OPEN_BRACKET + className + EVENT_STRING + COMMA + SPACE
-                    + className + EVENT_LISTENER_STRING + DIAMOND_CLOSE_BRACKET + NEW_LINE;
-        } else {
-            for (JavaQualifiedTypeInfo info : getExtendsList()) {
-                if (info.getClassInfo().equals(className)) {
-                    if (!getExtendedClassStore().get(info)) {
-                        return extend + info.getClassInfo();
-                    } else {
-                        return extend + info.getPkgInfo() + PERIOD + info.getClassInfo();
-                    }
-                }
-            }
-        }
-        return null;
-    }
-
-    /**
      * Returns extends list.
      * Returns extends list.
      *
      *
      * @return the extendsList
      * @return the extendsList

@@ -27,6 +27,7 @@ import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaEnumerationFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaEnumerationFragmentFiles;
+import org.onosproject.yangutils.translator.tojava.TempJavaServiceFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.javamodel.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.javamodel.JavaCodeGeneratorInfo;
 
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.BUILDER_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.BUILDER_CLASS_MASK;
@@ -34,6 +35,7 @@ import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
@@ -44,6 +46,11 @@ import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.ENUM_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.ENUM_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EQUALS_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EQUALS_IMPL_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_ENUM_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_METHOD_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_ATTRIBUTE_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_GETTER_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_SETTER_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.FROM_STRING_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.FROM_STRING_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.GETTER_FOR_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.GETTER_FOR_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.GETTER_FOR_INTERFACE_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.GETTER_FOR_INTERFACE_MASK;
@@ -59,6 +66,8 @@ import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGenerato
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getEnumsValueAttribute;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getEnumsValueAttribute;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.initiateJavaFileGeneration;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.initiateJavaFileGeneration;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
+import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.addActivateMethod;
+import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.addDeActivateMethod;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAddAugmentInfoMethodImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAddAugmentInfoMethodImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAugmentInfoListImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAugmentInfoListImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getConstructorStart;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getConstructorStart;
@@ -75,6 +84,7 @@ import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getRemoveAugmentationImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getRemoveAugmentationImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getToStringMethodClose;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getToStringMethodClose;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getToStringMethodOpen;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getToStringMethodOpen;
+import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.getEventEnumTypeStart;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.isAugmentationHolderExtended;
 import static org.onosproject.yangutils.translator.tojava.utils.TempJavaCodeFragmentFilesUtils.isAugmentationHolderExtended;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_CURLY_BRACKET;
@@ -82,20 +92,23 @@ import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_LISTENER_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_LISTENER_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.EVENT_SUBJECT_NAME_SUFFIX;
 import static org.onosproject.yangutils.utils.UtilConstants.FOUR_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.FOUR_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPL;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPL;
 import static org.onosproject.yangutils.utils.UtilConstants.INT;
 import static org.onosproject.yangutils.utils.UtilConstants.INT;
+import static org.onosproject.yangutils.utils.UtilConstants.LOGGER_STATEMENT;
+import static org.onosproject.yangutils.utils.UtilConstants.MANAGER;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.PRIVATE;
 import static org.onosproject.yangutils.utils.UtilConstants.PRIVATE;
 import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
 import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.SERVICE_METHOD_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.SERVICE_METHOD_STRING;
+import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.GETTER_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.GETTER_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.TYPE_CONSTRUCTOR;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.TYPE_CONSTRUCTOR;
-import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.insertDataIntoJavaFile;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.insertDataIntoJavaFile;
-import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.partString;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
+import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.validateLineLength;
 
 
 /**
 /**
  * Representation of java file generator.
  * Representation of java file generator.
@@ -141,7 +154,7 @@ public final class JavaFileGenerator {
                         + " while interface file generation");
                         + " while interface file generation");
             }
             }
         }
         }
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -157,11 +170,12 @@ public final class JavaFileGenerator {
             throws IOException {
             throws IOException {
 
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+        YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
 
-        initiateJavaFileGeneration(file, className, BUILDER_INTERFACE_MASK, null, path);
+        initiateJavaFileGeneration(file, className, BUILDER_INTERFACE_MASK, null, path, pluginConfig);
         List<String> methods = new ArrayList<>();
         List<String> methods = new ArrayList<>();
         if (isAttrPresent) {
         if (isAttrPresent) {
             try {
             try {
@@ -188,7 +202,7 @@ public final class JavaFileGenerator {
          */
          */
         methods.add(
         methods.add(
                 ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                 ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
-                        .addBuildMethodForInterface());
+                        .addBuildMethodForInterface(pluginConfig));
 
 
         /**
         /**
          * Add getters and setters in builder interface.
          * Add getters and setters in builder interface.
@@ -198,7 +212,7 @@ public final class JavaFileGenerator {
         }
         }
 
 
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -216,11 +230,12 @@ public final class JavaFileGenerator {
             throws IOException {
             throws IOException {
 
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+        YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
 
-        initiateJavaFileGeneration(file, className, BUILDER_CLASS_MASK, imports, path);
+        initiateJavaFileGeneration(file, className, BUILDER_CLASS_MASK, imports, path, pluginConfig);
 
 
         List<String> methods = new ArrayList<>();
         List<String> methods = new ArrayList<>();
 
 
@@ -265,7 +280,7 @@ public final class JavaFileGenerator {
         methods.add(((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
         methods.add(((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                 .addBuildMethodImpl());
                 .addBuildMethodImpl());
         methods.add(((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
         methods.add(((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
-                .addDefaultConstructor(PUBLIC, BUILDER));
+                .addDefaultConstructor(PUBLIC, BUILDER, pluginConfig));
 
 
         /**
         /**
          * Add methods in builder class.
          * Add methods in builder class.
@@ -273,7 +288,7 @@ public final class JavaFileGenerator {
         for (String method : methods) {
         for (String method : methods) {
             insertDataIntoJavaFile(file, method);
             insertDataIntoJavaFile(file, method);
         }
         }
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -292,12 +307,16 @@ public final class JavaFileGenerator {
 
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
 
 
-        String className = getCapitalCase(javaFileInfo.getJavaName());
+        String className = getCapitalCase(javaFileInfo.getJavaName()) + MANAGER;
 
 
         initiateJavaFileGeneration(file, GENERATE_SERVICE_AND_MANAGER, imports, curNode, className);
         initiateJavaFileGeneration(file, GENERATE_SERVICE_AND_MANAGER, imports, curNode, className);
 
 
         List<String> methods = new ArrayList<>();
         List<String> methods = new ArrayList<>();
 
 
+        insertDataIntoJavaFile(file, LOGGER_STATEMENT);
+        methods.add(addActivateMethod());
+        methods.add(addDeActivateMethod());
+
         try {
         try {
             if (isAttrPresent) {
             if (isAttrPresent) {
                 /**
                 /**
@@ -338,7 +357,7 @@ public final class JavaFileGenerator {
         for (String method : methods) {
         for (String method : methods) {
             insertDataIntoJavaFile(file, method);
             insertDataIntoJavaFile(file, method);
         }
         }
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -354,11 +373,12 @@ public final class JavaFileGenerator {
             throws IOException {
             throws IOException {
 
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+        YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
 
-        initiateJavaFileGeneration(file, className, IMPL_CLASS_MASK, null, path);
+        initiateJavaFileGeneration(file, className, IMPL_CLASS_MASK, null, path, pluginConfig);
 
 
         List<String> methods = new ArrayList<>();
         List<String> methods = new ArrayList<>();
 
 
@@ -398,10 +418,10 @@ public final class JavaFileGenerator {
                 /**
                 /**
                  * Hash code method.
                  * Hash code method.
                  */
                  */
-                methods.add(getHashCodeMethodClose(getHashCodeMethodOpen() + partString(
+                methods.add(getHashCodeMethodClose(getHashCodeMethodOpen() +
                         getDataFromTempFileHandle(HASH_CODE_IMPL_MASK,
                         getDataFromTempFileHandle(HASH_CODE_IMPL_MASK,
                                 ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                                 ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
-                                        .getBeanTempFiles()).replace(NEW_LINE, EMPTY_STRING))));
+                                        .getBeanTempFiles()).replace(NEW_LINE, EMPTY_STRING)));
                 /**
                 /**
                  * Equals method.
                  * Equals method.
                  */
                  */
@@ -429,7 +449,8 @@ public final class JavaFileGenerator {
             /**
             /**
              * Constructor.
              * Constructor.
              */
              */
-            String constructor = getConstructorStart(className) + getDataFromTempFileHandle(CONSTRUCTOR_IMPL_MASK,
+            String constructor =
+                    getConstructorStart(className, pluginConfig) + getDataFromTempFileHandle(CONSTRUCTOR_IMPL_MASK,
                             ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                             ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                                     .getBeanTempFiles());
                                     .getBeanTempFiles());
 
 
@@ -456,7 +477,7 @@ public final class JavaFileGenerator {
         }
         }
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
 
 
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -472,11 +493,12 @@ public final class JavaFileGenerator {
             throws IOException {
             throws IOException {
 
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+        YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
 
-        initiateJavaFileGeneration(file, className, GENERATE_TYPEDEF_CLASS, imports, path);
+        initiateJavaFileGeneration(file, className, GENERATE_TYPEDEF_CLASS, imports, path, pluginConfig);
 
 
         List<String> methods = new ArrayList<>();
         List<String> methods = new ArrayList<>();
 
 
@@ -497,7 +519,7 @@ public final class JavaFileGenerator {
          * Default constructor.
          * Default constructor.
          */
          */
         methods.add(((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
         methods.add(((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
-                .addDefaultConstructor(PRIVATE, EMPTY_STRING));
+                .addDefaultConstructor(PRIVATE, EMPTY_STRING, pluginConfig));
 
 
         try {
         try {
 
 
@@ -522,11 +544,11 @@ public final class JavaFileGenerator {
             /**
             /**
              * Hash code method.
              * Hash code method.
              */
              */
-            methods.add(getHashCodeMethodClose(getHashCodeMethodOpen() + partString(
+            methods.add(getHashCodeMethodClose(getHashCodeMethodOpen() +
                     getDataFromTempFileHandle(HASH_CODE_IMPL_MASK,
                     getDataFromTempFileHandle(HASH_CODE_IMPL_MASK,
                             ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                             ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                                     .getTypeTempFiles())
                                     .getTypeTempFiles())
-                            .replace(NEW_LINE, EMPTY_STRING))));
+                                            .replace(NEW_LINE, EMPTY_STRING)));
 
 
             /**
             /**
              * Equals method.
              * Equals method.
@@ -546,7 +568,7 @@ public final class JavaFileGenerator {
             /**
             /**
              * From string method.
              * From string method.
              */
              */
-            methods.add(getFromStringMethodSignature(className)
+            methods.add(getFromStringMethodSignature(className, pluginConfig)
                     + getDataFromTempFileHandle(FROM_STRING_IMPL_MASK, javaGeninfo.getTempJavaCodeFragmentFiles()
                     + getDataFromTempFileHandle(FROM_STRING_IMPL_MASK, javaGeninfo.getTempJavaCodeFragmentFiles()
                     .getTypeTempFiles()) + getFromStringMethodClose());
                     .getTypeTempFiles()) + getFromStringMethodClose());
 
 
@@ -560,7 +582,7 @@ public final class JavaFileGenerator {
         }
         }
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
 
 
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -576,11 +598,12 @@ public final class JavaFileGenerator {
             throws IOException {
             throws IOException {
 
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+        YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String className = getCapitalCase(javaFileInfo.getJavaName());
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
 
-        initiateJavaFileGeneration(file, className, GENERATE_UNION_CLASS, imports, path);
+        initiateJavaFileGeneration(file, className, GENERATE_UNION_CLASS, imports, path, pluginConfig);
 
 
         List<String> methods = new ArrayList<>();
         List<String> methods = new ArrayList<>();
 
 
@@ -601,7 +624,7 @@ public final class JavaFileGenerator {
          * Default constructor.
          * Default constructor.
          */
          */
         methods.add(((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
         methods.add(((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
-                .addDefaultConstructor(PRIVATE, EMPTY_STRING));
+                .addDefaultConstructor(PRIVATE, EMPTY_STRING, pluginConfig));
 
 
         try {
         try {
 
 
@@ -626,11 +649,11 @@ public final class JavaFileGenerator {
             /**
             /**
              * Hash code method.
              * Hash code method.
              */
              */
-            methods.add(getHashCodeMethodClose(getHashCodeMethodOpen() + partString(
+            methods.add(getHashCodeMethodClose(getHashCodeMethodOpen() +
                     getDataFromTempFileHandle(HASH_CODE_IMPL_MASK,
                     getDataFromTempFileHandle(HASH_CODE_IMPL_MASK,
                             ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                             ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                                     .getTypeTempFiles())
                                     .getTypeTempFiles())
-                            .replace(NEW_LINE, EMPTY_STRING))));
+                                            .replace(NEW_LINE, EMPTY_STRING)));
 
 
             /**
             /**
              * Equals method.
              * Equals method.
@@ -650,7 +673,7 @@ public final class JavaFileGenerator {
             /**
             /**
              * From string method.
              * From string method.
              */
              */
-            methods.add(getFromStringMethodSignature(className)
+            methods.add(getFromStringMethodSignature(className, pluginConfig)
                     + getDataFromTempFileHandle(FROM_STRING_IMPL_MASK,
                     + getDataFromTempFileHandle(FROM_STRING_IMPL_MASK,
                     ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles().getTypeTempFiles())
                     ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles().getTypeTempFiles())
                     + getFromStringMethodClose());
                     + getFromStringMethodClose());
@@ -665,7 +688,7 @@ public final class JavaFileGenerator {
         }
         }
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
 
 
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -680,11 +703,12 @@ public final class JavaFileGenerator {
             throws IOException {
             throws IOException {
 
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
+        YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
 
         String className = javaFileInfo.getJavaName();
         String className = javaFileInfo.getJavaName();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
 
-        initiateJavaFileGeneration(file, getCapitalCase(className), GENERATE_ENUM_CLASS, null, path);
+        initiateJavaFileGeneration(file, getCapitalCase(className), GENERATE_ENUM_CLASS, null, path, pluginConfig);
         /**
         /**
          * Add attribute strings.
          * Add attribute strings.
          */
          */
@@ -708,26 +732,26 @@ public final class JavaFileGenerator {
         /**
         /**
          * Add a constructor for enum.
          * Add a constructor for enum.
          */
          */
-        insertDataIntoJavaFile(file, getJavaDoc(TYPE_CONSTRUCTOR, className, false)
+        insertDataIntoJavaFile(file, getJavaDoc(TYPE_CONSTRUCTOR, className, false, pluginConfig)
                 + getEnumsConstrcutor(getCapitalCase(className)) + NEW_LINE);
                 + getEnumsConstrcutor(getCapitalCase(className)) + NEW_LINE);
 
 
         TempJavaEnumerationFragmentFiles enumFragFiles =
         TempJavaEnumerationFragmentFiles enumFragFiles =
                 ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                 ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                         .getEnumerationTempFiles();
                         .getEnumerationTempFiles();
         insertDataIntoJavaFile(file, getEnumsOfMethod(className,
         insertDataIntoJavaFile(file, getEnumsOfMethod(className,
-                enumFragFiles.getJavaAttributeForEnum(),
+                enumFragFiles.getJavaAttributeForEnum(pluginConfig),
                 enumFragFiles.getEnumSetJavaMap(),
                 enumFragFiles.getEnumSetJavaMap(),
-                enumFragFiles.getEnumStringList())
+                enumFragFiles.getEnumStringList(), pluginConfig)
                 + NEW_LINE);
                 + NEW_LINE);
 
 
         /**
         /**
          * Add a getter method for enum.
          * Add a getter method for enum.
          */
          */
-        insertDataIntoJavaFile(file, getJavaDoc(GETTER_METHOD, className, false)
+        insertDataIntoJavaFile(file, getJavaDoc(GETTER_METHOD, className, false, pluginConfig)
                 + getGetter(INT, className, GENERATE_ENUM_CLASS) + NEW_LINE);
                 + getGetter(INT, className, GENERATE_ENUM_CLASS) + NEW_LINE);
 
 
         try {
         try {
-            insertDataIntoJavaFile(file, getFromStringMethodSignature(getCapitalCase(className))
+            insertDataIntoJavaFile(file, getFromStringMethodSignature(getCapitalCase(className), pluginConfig)
                     + getDataFromTempFileHandle(FROM_STRING_IMPL_MASK,
                     + getDataFromTempFileHandle(FROM_STRING_IMPL_MASK,
                             ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                             ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                                     .getEnumerationTempFiles())
                                     .getEnumerationTempFiles())
@@ -739,7 +763,7 @@ public final class JavaFileGenerator {
 
 
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
 
 
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -797,7 +821,7 @@ public final class JavaFileGenerator {
         }
         }
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
 
 
-        return file;
+        return validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -810,49 +834,28 @@ public final class JavaFileGenerator {
      */
      */
     public static void generateEventFile(File file, YangNode curNode, List<String> imports) throws IOException {
     public static void generateEventFile(File file, YangNode curNode, List<String> imports) throws IOException {
 
 
-        YangNode parent = curNode.getParent();
-        JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
-
         String className =
         String className =
-                getCapitalCase(((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName())
+                getCapitalCase(((JavaFileInfoContainer) curNode).getJavaFileInfo().getJavaName())
                         + EVENT_STRING;
                         + EVENT_STRING;
 
 
+        TempJavaServiceFragmentFiles tempFiles = ((TempJavaCodeFragmentFilesContainer) curNode)
+                .getTempJavaCodeFragmentFiles().getServiceTempFiles();
+
         initiateJavaFileGeneration(file, GENERATE_EVENT_CLASS, imports, curNode, className);
         initiateJavaFileGeneration(file, GENERATE_EVENT_CLASS, imports, curNode, className);
-        insertDataIntoJavaFile(file, getEventFileContents(className, javaFileInfo.getJavaName()));
-        insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
+        try {
+            insertDataIntoJavaFile(file, NEW_LINE + getEventEnumTypeStart() +
+                    trimAtLast(getDataFromTempFileHandle(EVENT_ENUM_MASK, tempFiles), COMMA)
+                    + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET + NEW_LINE);
+
+            insertDataIntoJavaFile(file, getDataFromTempFileHandle(EVENT_METHOD_MASK, tempFiles));
+
+        } catch (IOException e) {
+            throw new IOException("No data found in temporary java code fragment files for " + className
+                    + " while event class file generation");
         }
         }
 
 
-    private static String getEventFileContents(String eventClassname, String classname) {
-        return "\n" +
-                "    public enum Type {\n" +
-                "        /**\n" +
-                "         * " + getCapitalCase(classname) + " notification.\n" +
-                "         */\n" +
-                "        " + classname.toUpperCase() + "_EVENT\n" +
-                "    }\n" +
-                "\n" +
-                "    /**\n" +
-                "     * Creates " + classname + " event with type and subject.\n" +
-                "     *\n" +
-                "     * @param type event type\n" +
-                "     * @param subject subject " + classname + "\n" +
-                "     */\n" +
-                "    public " + eventClassname + "(Type type, " + getCapitalCase(classname) + " subject) {\n" +
-                "        super(type, subject);\n" +
-                "    }\n" +
-                "\n" +
-                "    /**\n" +
-                "     * Creates " + classname + " event with type, subject and time.\n" +
-                "     *\n" +
-                "     * @param type event type\n" +
-                "     * @param subject subject " + classname + "\n" +
-                "     * @param time time of event\n" +
-                "     */\n" +
-                "    public " + eventClassname + "(Type type, " + getCapitalCase(classname)
-                + " subject, long time) {\n" +
-                "        super(type, subject, time);\n" +
-                "    }\n" +
-                "\n";
+        insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
+        validateLineLength(file);
     }
     }
 
 
     /**
     /**
@@ -865,15 +868,48 @@ public final class JavaFileGenerator {
      */
      */
     public static void generateEventListenerFile(File file, YangNode curNode, List<String> imports)
     public static void generateEventListenerFile(File file, YangNode curNode, List<String> imports)
             throws IOException {
             throws IOException {
-        YangNode parent = curNode.getParent();
-        JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
 
 
         String className =
         String className =
-                getCapitalCase(((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName())
+                getCapitalCase(((JavaFileInfoContainer) curNode).getJavaFileInfo().getJavaName())
                         + EVENT_LISTENER_STRING;
                         + EVENT_LISTENER_STRING;
-        String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
 
-        initiateJavaFileGeneration(file, className, GENERATE_EVENT_LISTENER_INTERFACE, imports, path);
+        initiateJavaFileGeneration(file, GENERATE_EVENT_LISTENER_INTERFACE, imports, curNode, className);
+        insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
+        validateLineLength(file);
+    }
+
+    /**
+     * Generates event subject's file.
+     *
+     * @param file file handle
+     * @param curNode current YANG node
+     * @throws IOException when fails to do IO exceptions
+     */
+    public static void generateEventSubjectFile(File file, YangNode curNode)
+            throws IOException {
+
+        String className = getCapitalCase(((JavaFileInfoContainer) curNode).getJavaFileInfo().getJavaName())
+                + EVENT_SUBJECT_NAME_SUFFIX;
+
+        initiateJavaFileGeneration(file, GENERATE_EVENT_SUBJECT_CLASS, null, curNode, className);
+
+        TempJavaServiceFragmentFiles tempFiles = ((TempJavaCodeFragmentFilesContainer) curNode)
+                .getTempJavaCodeFragmentFiles().getServiceTempFiles();
+
+        insertDataIntoJavaFile(file, NEW_LINE);
+        try {
+            insertDataIntoJavaFile(file, getDataFromTempFileHandle(EVENT_SUBJECT_ATTRIBUTE_MASK, tempFiles));
+
+            insertDataIntoJavaFile(file, getDataFromTempFileHandle(EVENT_SUBJECT_GETTER_MASK, tempFiles));
+
+            insertDataIntoJavaFile(file, getDataFromTempFileHandle(EVENT_SUBJECT_SETTER_MASK, tempFiles));
+
+        } catch (IOException e) {
+            throw new IOException("No data found in temporary java code fragment files for " + className
+                    + " while event class file generation");
+        }
+
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
         insertDataIntoJavaFile(file, CLOSE_CURLY_BRACKET + NEW_LINE);
+        validateLineLength(file);
     }
     }
 }
 }

@@ -37,6 +37,7 @@ import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
@@ -47,6 +48,11 @@ import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.ENUM_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.ENUM_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EQUALS_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EQUALS_IMPL_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_ENUM_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_METHOD_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_ATTRIBUTE_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_GETTER_MASK;
+import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.EVENT_SUBJECT_SETTER_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.FROM_STRING_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.FROM_STRING_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.GETTER_FOR_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.GETTER_FOR_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.GETTER_FOR_INTERFACE_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.GETTER_FOR_INTERFACE_MASK;
@@ -60,28 +66,36 @@ import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.
 import static org.onosproject.yangutils.translator.tojava.utils.ClassDefinitionGenerator.generateClassDefinition;
 import static org.onosproject.yangutils.translator.tojava.utils.ClassDefinitionGenerator.generateClassDefinition;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getJavaPackageFromPackagePath;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getJavaPackageFromPackagePath;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getSmallCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getSmallCase;
+import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_PARENTHESIS;
+import static org.onosproject.yangutils.utils.UtilConstants.COMPONENT_ANNOTATION;
+import static org.onosproject.yangutils.utils.UtilConstants.EQUAL;
 import static org.onosproject.yangutils.utils.UtilConstants.FOUR_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.FOUR_SPACE_INDENTATION;
+import static org.onosproject.yangutils.utils.UtilConstants.IMMEDIATE;
 import static org.onosproject.yangutils.utils.UtilConstants.INT;
 import static org.onosproject.yangutils.utils.UtilConstants.INT;
-import static org.onosproject.yangutils.utils.UtilConstants.MANAGER;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
-import static org.onosproject.yangutils.utils.UtilConstants.ORG;
+import static org.onosproject.yangutils.utils.UtilConstants.OPEN_PARENTHESIS;
 import static org.onosproject.yangutils.utils.UtilConstants.PACKAGE;
 import static org.onosproject.yangutils.utils.UtilConstants.PACKAGE;
+import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.PRIVATE;
 import static org.onosproject.yangutils.utils.UtilConstants.PRIVATE;
+import static org.onosproject.yangutils.utils.UtilConstants.REGEX_FOR_ANY_STRING_ENDING_WITH_SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
-import static org.onosproject.yangutils.utils.UtilConstants.SERVICE;
+import static org.onosproject.yangutils.utils.UtilConstants.SERVICE_ANNOTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.SLASH;
 import static org.onosproject.yangutils.utils.UtilConstants.SLASH;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
+import static org.onosproject.yangutils.utils.UtilConstants.TRUE;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.BUILDER_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.BUILDER_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.BUILDER_INTERFACE;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.BUILDER_INTERFACE;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.ENUM_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.ENUM_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.EVENT;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.EVENT;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.EVENT_LISTENER;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.EVENT_LISTENER;
+import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.IMPL_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.IMPL_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.INTERFACE;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.INTERFACE;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.RPC_INTERFACE;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.RPC_INTERFACE;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.RPC_MANAGER;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.RPC_MANAGER;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.insertDataIntoJavaFile;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.insertDataIntoJavaFile;
+import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.parsePkg;
 
 
 /**
 /**
  * Represents utilities for java file generator.
  * Represents utilities for java file generator.
@@ -136,6 +150,7 @@ public final class JavaFileGeneratorUtils {
         if (tempJavaFragmentFiles instanceof TempJavaServiceFragmentFiles) {
         if (tempJavaFragmentFiles instanceof TempJavaServiceFragmentFiles) {
             serviceFragmentFiles = (TempJavaServiceFragmentFiles) tempJavaFragmentFiles;
             serviceFragmentFiles = (TempJavaServiceFragmentFiles) tempJavaFragmentFiles;
         }
         }
+
         if ((generatedTempFiles & ATTRIBUTES_MASK) != 0) {
         if ((generatedTempFiles & ATTRIBUTES_MASK) != 0) {
             return tempJavaFragmentFiles
             return tempJavaFragmentFiles
                     .getTemporaryDataFromFileHandle(tempJavaFragmentFiles.getAttributesTempFileHandle());
                     .getTemporaryDataFromFileHandle(tempJavaFragmentFiles.getAttributesTempFileHandle());
@@ -201,6 +216,36 @@ public final class JavaFileGeneratorUtils {
             }
             }
             return serviceFragmentFiles
             return serviceFragmentFiles
                     .getTemporaryDataFromFileHandle(serviceFragmentFiles.getRpcImplTempFileHandle());
                     .getTemporaryDataFromFileHandle(serviceFragmentFiles.getRpcImplTempFileHandle());
+        } else if ((generatedTempFiles & EVENT_ENUM_MASK) != 0) {
+            if (serviceFragmentFiles == null) {
+                throw new TranslatorException("Required rpc implementation info is missing.");
+            }
+            return serviceFragmentFiles
+                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventEnumTempFileHandle());
+        } else if ((generatedTempFiles & EVENT_METHOD_MASK) != 0) {
+            if (serviceFragmentFiles == null) {
+                throw new TranslatorException("Required rpc implementation info is missing.");
+            }
+            return serviceFragmentFiles
+                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventMethodTempFileHandle());
+        } else if ((generatedTempFiles & EVENT_SUBJECT_GETTER_MASK) != 0) {
+            if (serviceFragmentFiles == null) {
+                throw new TranslatorException("Required rpc implementation info is missing.");
+            }
+            return serviceFragmentFiles
+                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventSubjectGetterTempFileHandle());
+        } else if ((generatedTempFiles & EVENT_SUBJECT_SETTER_MASK) != 0) {
+            if (serviceFragmentFiles == null) {
+                throw new TranslatorException("Required rpc implementation info is missing.");
+            }
+            return serviceFragmentFiles
+                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventSubjectSetterTempFileHandle());
+        } else if ((generatedTempFiles & EVENT_SUBJECT_ATTRIBUTE_MASK) != 0) {
+            if (serviceFragmentFiles == null) {
+                throw new TranslatorException("Required rpc implementation info is missing.");
+            }
+            return serviceFragmentFiles
+                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventSubjectAttributeTempFileHandle());
         }
         }
         return null;
         return null;
     }
     }
@@ -213,15 +258,16 @@ public final class JavaFileGeneratorUtils {
      * @param type generated file type
      * @param type generated file type
      * @param imports imports for the file
      * @param imports imports for the file
      * @param pkg generated file package
      * @param pkg generated file package
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to generate a file
      * @throws IOException when fails to generate a file
      */
      */
     public static void initiateJavaFileGeneration(File file, String className, int type, List<String> imports,
     public static void initiateJavaFileGeneration(File file, String className, int type, List<String> imports,
-            String pkg)
+            String pkg, YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
 
 
         try {
         try {
             file.createNewFile();
             file.createNewFile();
-            appendContents(file, className, type, imports, pkg);
+            appendContents(file, className, type, imports, pkg, pluginConfig);
         } catch (IOException e) {
         } catch (IOException e) {
             throw new IOException("Failed to create " + file.getName() + " class file.");
             throw new IOException("Failed to create " + file.getName() + " class file.");
         }
         }
@@ -263,9 +309,17 @@ public final class JavaFileGeneratorUtils {
 
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
 
 
+        String name = javaFileInfo.getJavaName();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
-        String pkgString = parsePackageString(path, importsList);
 
 
+        String pkgString = null;
+        if (type == GENERATE_EVENT_CLASS
+                || type == GENERATE_EVENT_LISTENER_INTERFACE
+                || type == GENERATE_EVENT_SUBJECT_CLASS) {
+            pkgString = parsePackageString((path + PERIOD + name).toLowerCase(), importsList);
+        } else {
+            pkgString = parsePackageString(path, importsList);
+        }
         switch (type) {
         switch (type) {
         case INTERFACE_MASK:
         case INTERFACE_MASK:
             appendHeaderContents(file, pkgString, importsList);
             appendHeaderContents(file, pkgString, importsList);
@@ -279,6 +333,14 @@ public final class JavaFileGeneratorUtils {
             appendHeaderContents(file, pkgString, importsList);
             appendHeaderContents(file, pkgString, importsList);
             write(file, type, EVENT, curNode, className);
             write(file, type, EVENT, curNode, className);
             break;
             break;
+        case GENERATE_EVENT_LISTENER_INTERFACE:
+            appendHeaderContents(file, pkgString, importsList);
+            write(file, type, EVENT_LISTENER, curNode, className);
+            break;
+        case GENERATE_EVENT_SUBJECT_CLASS:
+            appendHeaderContents(file, pkgString, importsList);
+            write(file, type, EVENT_SUBJECT_CLASS, curNode, className);
+            break;
         default:
         default:
             break;
             break;
         }
         }
@@ -294,37 +356,34 @@ public final class JavaFileGeneratorUtils {
      * @param importsList list of java imports.
      * @param importsList list of java imports.
      * @throws IOException when fails to append contents
      * @throws IOException when fails to append contents
      */
      */
-    private static void appendContents(File file, String fileName, int type, List<String> importsList, String pkg)
+    private static void appendContents(File file, String fileName, int type, List<String> importsList, String pkg,
+            YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
 
 
         String pkgString = parsePackageString(pkg, importsList);
         String pkgString = parsePackageString(pkg, importsList);
 
 
         switch (type) {
         switch (type) {
         case IMPL_CLASS_MASK:
         case IMPL_CLASS_MASK:
-            write(file, fileName, type, IMPL_CLASS);
+            write(file, fileName, type, IMPL_CLASS, pluginConfig);
             break;
             break;
         case BUILDER_INTERFACE_MASK:
         case BUILDER_INTERFACE_MASK:
-            write(file, fileName, type, BUILDER_INTERFACE);
+            write(file, fileName, type, BUILDER_INTERFACE, pluginConfig);
             break;
             break;
         case GENERATE_TYPEDEF_CLASS:
         case GENERATE_TYPEDEF_CLASS:
             appendHeaderContents(file, pkgString, importsList);
             appendHeaderContents(file, pkgString, importsList);
-            write(file, fileName, type, IMPL_CLASS);
+            write(file, fileName, type, IMPL_CLASS, pluginConfig);
             break;
             break;
         case BUILDER_CLASS_MASK:
         case BUILDER_CLASS_MASK:
             appendHeaderContents(file, pkgString, importsList);
             appendHeaderContents(file, pkgString, importsList);
-            write(file, fileName, type, BUILDER_CLASS);
+            write(file, fileName, type, BUILDER_CLASS, pluginConfig);
             break;
             break;
         case GENERATE_UNION_CLASS:
         case GENERATE_UNION_CLASS:
             appendHeaderContents(file, pkgString, importsList);
             appendHeaderContents(file, pkgString, importsList);
-            write(file, fileName, type, IMPL_CLASS);
+            write(file, fileName, type, IMPL_CLASS, pluginConfig);
             break;
             break;
         case GENERATE_ENUM_CLASS:
         case GENERATE_ENUM_CLASS:
             appendHeaderContents(file, pkgString, importsList);
             appendHeaderContents(file, pkgString, importsList);
-            write(file, fileName, type, ENUM_CLASS);
-            break;
-        case GENERATE_EVENT_LISTENER_INTERFACE:
-            appendHeaderContents(file, pkgString, importsList);
-            write(file, fileName, type, EVENT_LISTENER);
+            write(file, fileName, type, ENUM_CLASS, pluginConfig);
             break;
             break;
         default:
         default:
             break;
             break;
@@ -340,10 +399,7 @@ public final class JavaFileGeneratorUtils {
      */
      */
     private static String parsePackageString(String javaPkg, List<String> importsList) {
     private static String parsePackageString(String javaPkg, List<String> importsList) {
 
 
-        if (javaPkg.contains(ORG)) {
-            String[] strArray = javaPkg.split(ORG);
-            javaPkg = ORG + getJavaPackageFromPackagePath(strArray[1]);
-        }
+        javaPkg = parsePkg(getJavaPackageFromPackagePath(javaPkg));
         if (importsList != null) {
         if (importsList != null) {
             if (!importsList.isEmpty()) {
             if (!importsList.isEmpty()) {
                 return PACKAGE + SPACE + javaPkg + SEMI_COLAN + NEW_LINE;
                 return PACKAGE + SPACE + javaPkg + SEMI_COLAN + NEW_LINE;
@@ -395,14 +451,16 @@ public final class JavaFileGeneratorUtils {
     private static void write(File file, int genType, JavaDocType javaDocType, YangNode curNode, String fileName)
     private static void write(File file, int genType, JavaDocType javaDocType, YangNode curNode, String fileName)
             throws IOException {
             throws IOException {
 
 
+        YangPluginConfig pluginConfig = ((JavaFileInfoContainer) curNode).getJavaFileInfo().getPluginConfig();
         if ((genType & GENERATE_SERVICE_AND_MANAGER) != 0) {
         if ((genType & GENERATE_SERVICE_AND_MANAGER) != 0) {
-            if (!fileName.contains(SERVICE)) {
-                insertDataIntoJavaFile(file, getJavaDoc(RPC_MANAGER, fileName + MANAGER, false));
+            if (!fileName.matches(REGEX_FOR_ANY_STRING_ENDING_WITH_SERVICE)) {
+                insertDataIntoJavaFile(file, getJavaDoc(RPC_MANAGER, fileName, false, pluginConfig));
+                insertDataIntoJavaFile(file, addComponentString());
             } else {
             } else {
-                insertDataIntoJavaFile(file, getJavaDoc(javaDocType, fileName, false));
+                insertDataIntoJavaFile(file, getJavaDoc(javaDocType, fileName, false, pluginConfig));
             }
             }
         } else {
         } else {
-            insertDataIntoJavaFile(file, getJavaDoc(javaDocType, fileName, false));
+            insertDataIntoJavaFile(file, getJavaDoc(javaDocType, fileName, false, pluginConfig));
         }
         }
         insertDataIntoJavaFile(file, generateClassDefinition(genType, fileName, curNode));
         insertDataIntoJavaFile(file, generateClassDefinition(genType, fileName, curNode));
     }
     }
@@ -416,9 +474,10 @@ public final class JavaFileGeneratorUtils {
      * @param javaDocType java doc type
      * @param javaDocType java doc type
      * @throws IOException when fails to write into a file
      * @throws IOException when fails to write into a file
      */
      */
-    private static void write(File file, String fileName, int genType, JavaDocType javaDocType)
+    private static void write(File file, String fileName, int genType, JavaDocType javaDocType,
+            YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
-        insertDataIntoJavaFile(file, getJavaDoc(javaDocType, fileName, false));
+        insertDataIntoJavaFile(file, getJavaDoc(javaDocType, fileName, false, pluginConfig));
         insertDataIntoJavaFile(file, generateClassDefinition(genType, fileName));
         insertDataIntoJavaFile(file, generateClassDefinition(genType, fileName));
     }
     }
 
 
@@ -433,4 +492,13 @@ public final class JavaFileGeneratorUtils {
                 + SEMI_COLAN + NEW_LINE;
                 + SEMI_COLAN + NEW_LINE;
     }
     }
 
 
+    /**
+     * Returns component string.
+     *
+     * @return component string
+     */
+    public static String addComponentString() {
+        return NEW_LINE + COMPONENT_ANNOTATION + SPACE + OPEN_PARENTHESIS + IMMEDIATE + SPACE
+                + EQUAL + SPACE + TRUE + CLOSE_PARENTHESIS + NEW_LINE + SERVICE_ANNOTATION;
+    }
 }
 }

@@ -75,16 +75,18 @@ public final class JavaIdentifierSyntax {
      * @param version YANG version
      * @param version YANG version
      * @param nameSpace name space of the module
      * @param nameSpace name space of the module
      * @param revision revision of the module defined
      * @param revision revision of the module defined
-     * @return returns the root package string
+     * @param conflictResolver object of YANG to java naming conflict util
+     * @return the root package string
      */
      */
-    public static String getRootPackage(byte version, String nameSpace, String revision) {
+    public static String getRootPackage(byte version, String nameSpace, String revision,
+            YangToJavaNamingConflictUtil conflictResolver) {
 
 
         String pkg;
         String pkg;
         pkg = DEFAULT_BASE_PKG;
         pkg = DEFAULT_BASE_PKG;
         pkg = pkg + PERIOD;
         pkg = pkg + PERIOD;
         pkg = pkg + getYangVersion(version);
         pkg = pkg + getYangVersion(version);
         pkg = pkg + PERIOD;
         pkg = pkg + PERIOD;
-        pkg = pkg + getPkgFromNameSpace(nameSpace);
+        pkg = pkg + getPkgFromNameSpace(nameSpace, conflictResolver);
         pkg = pkg + PERIOD;
         pkg = pkg + PERIOD;
         pkg = pkg + getYangRevisionStr(revision);
         pkg = pkg + getYangRevisionStr(revision);
 
 
@@ -144,9 +146,10 @@ public final class JavaIdentifierSyntax {
      * Returns package name from name space.
      * Returns package name from name space.
      *
      *
      * @param nameSpace name space of YANG module
      * @param nameSpace name space of YANG module
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return java package name as per java rules
      * @return java package name as per java rules
      */
      */
-    private static String getPkgFromNameSpace(String nameSpace) {
+    private static String getPkgFromNameSpace(String nameSpace, YangToJavaNamingConflictUtil conflictResolver) {
 
 
         ArrayList<String> pkgArr = new ArrayList<String>();
         ArrayList<String> pkgArr = new ArrayList<String>();
         nameSpace = nameSpace.replace(QUOTES, EMPTY_STRING);
         nameSpace = nameSpace.replace(QUOTES, EMPTY_STRING);
@@ -156,7 +159,7 @@ public final class JavaIdentifierSyntax {
         for (String nameSpaceString : nameSpaceArr) {
         for (String nameSpaceString : nameSpaceArr) {
             pkgArr.add(nameSpaceString);
             pkgArr.add(nameSpaceString);
         }
         }
-        return getPkgFrmArr(pkgArr);
+        return getPkgFrmArr(pkgArr, conflictResolver);
     }
     }
 
 
     /**
     /**
@@ -194,17 +197,19 @@ public final class JavaIdentifierSyntax {
      * Returns the package string.
      * Returns the package string.
      *
      *
      * @param pkgArr package array
      * @param pkgArr package array
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return package string
      * @return package string
      */
      */
-    private static String getPkgFrmArr(ArrayList<String> pkgArr) {
+    private static String getPkgFrmArr(ArrayList<String> pkgArr, YangToJavaNamingConflictUtil conflictResolver) {
 
 
         String pkg = EMPTY_STRING;
         String pkg = EMPTY_STRING;
         int size = pkgArr.size();
         int size = pkgArr.size();
         int i = 0;
         int i = 0;
         for (String member : pkgArr) {
         for (String member : pkgArr) {
-            boolean presenceOfKeyword = JAVA_KEY_WORDS.contains(member);
+            boolean presenceOfKeyword = JAVA_KEY_WORDS.contains(member.toLowerCase());
             if (presenceOfKeyword || member.matches(REGEX_FOR_FIRST_DIGIT)) {
             if (presenceOfKeyword || member.matches(REGEX_FOR_FIRST_DIGIT)) {
-                member = YANG_AUTO_PREFIX + member;
+                String prefix = getPrefixForIdentifier(conflictResolver);
+                member = prefix + member;
             }
             }
             pkg = pkg + member;
             pkg = pkg + member;
             if (i != size - 1) {
             if (i != size - 1) {
@@ -216,20 +221,40 @@ public final class JavaIdentifierSyntax {
     }
     }
 
 
     /**
     /**
-     * Returns package sub name from YANG identifier name.
+     * Prefix for adding with identifier and namespace, when it is a java keyword or starting with digits.
      *
      *
-     * @param name YANG identifier name
-     * @return java package sub name as per java rules
+     * @param conflictResolver object of YANG to java naming conflict util
+     * @return prefix which needs to be added
      */
      */
-    public static String getSubPkgFromName(String name) {
-
-        ArrayList<String> pkgArr = new ArrayList<String>();
-        String[] nameArr = name.split(COLAN);
+    public static String getPrefixForIdentifier(YangToJavaNamingConflictUtil conflictResolver) {
 
 
-        for (String nameString : nameArr) {
-            pkgArr.add(nameString);
+        String prefixForIdentifier = null;
+        if (conflictResolver != null) {
+            prefixForIdentifier = conflictResolver.getPrefixForIdentifier();
+        }
+        if (prefixForIdentifier != null) {
+            prefixForIdentifier = prefixForIdentifier.replaceAll(REGEX_WITH_ALL_SPECIAL_CHAR, COLAN);
+            String[] strArray = prefixForIdentifier.split(COLAN);
+            try {
+                if (strArray[0].isEmpty()) {
+                    List<String> stringArrangement = new ArrayList<String>();
+                    for (int i = 1; i < strArray.length; i++) {
+                        stringArrangement.add(strArray[i]);
+                    }
+                    strArray = stringArrangement.toArray(new String[stringArrangement.size()]);
+                }
+                prefixForIdentifier = strArray[0];
+                for (int j = 1; j < strArray.length; j++) {
+                    prefixForIdentifier = prefixForIdentifier + strArray[j].substring(0, 1).toUpperCase() +
+                            strArray[j].substring(1);
                 }
                 }
-        return getPkgFrmArr(pkgArr);
+            } catch (ArrayIndexOutOfBoundsException outOfBoundsException) {
+                throw new TranslatorException("The given prefix in pom.xml is invalid.");
+            }
+        } else {
+            prefixForIdentifier = YANG_AUTO_PREFIX;
+        }
+        return prefixForIdentifier;
     }
     }
 
 
     /**
     /**
@@ -267,16 +292,18 @@ public final class JavaIdentifierSyntax {
             }
             }
             strArray = stringArrangement.toArray(new String[stringArrangement.size()]);
             strArray = stringArrangement.toArray(new String[stringArrangement.size()]);
         }
         }
-        return upperCaseConflictResolver(strArray);
+        return upperCaseConflictResolver(strArray, conflictResolver);
     }
     }
 
 
     /**
     /**
-     * Resolves the conflict when input has uppercase.
+     * Resolves the conflict when input has upper case.
      *
      *
-     * @param stringArray containing strings for uppercase conflict resolver
+     * @param stringArray containing strings for upper case conflict resolver
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return camel cased string
      * @return camel cased string
      */
      */
-    private static String upperCaseConflictResolver(String[] stringArray) {
+    private static String upperCaseConflictResolver(String[] stringArray,
+            YangToJavaNamingConflictUtil conflictResolver) {
 
 
         for (int l = 0; l < stringArray.length; l++) {
         for (int l = 0; l < stringArray.length; l++) {
             String[] upperCaseSplitArray = stringArray[l].split(REGEX_WITH_UPPERCASE);
             String[] upperCaseSplitArray = stringArray[l].split(REGEX_WITH_UPPERCASE);
@@ -317,7 +344,7 @@ public final class JavaIdentifierSyntax {
             }
             }
         }
         }
         stringArray = result.toArray(new String[result.size()]);
         stringArray = result.toArray(new String[result.size()]);
-        return applyCamelCaseRule(stringArray);
+        return applyCamelCaseRule(stringArray, conflictResolver);
     }
     }
 
 
     /**
     /**
@@ -325,9 +352,10 @@ public final class JavaIdentifierSyntax {
      * the letter next to a number in an array.
      * the letter next to a number in an array.
      *
      *
      * @param stringArray containing strings for camel case separation
      * @param stringArray containing strings for camel case separation
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return camel case rule checked string
      * @return camel case rule checked string
      */
      */
-    private static String applyCamelCaseRule(String[] stringArray) {
+    private static String applyCamelCaseRule(String[] stringArray, YangToJavaNamingConflictUtil conflictResolver) {
 
 
         String ruleChecker = stringArray[0].toLowerCase();
         String ruleChecker = stringArray[0].toLowerCase();
         int i;
         int i;
@@ -338,7 +366,7 @@ public final class JavaIdentifierSyntax {
             i = 1;
             i = 1;
         }
         }
         for (; i < stringArray.length; i++) {
         for (; i < stringArray.length; i++) {
-            if ((i + 1) == stringArray.length) {
+            if (i + 1 == stringArray.length) {
                 if (stringArray[i].matches(REGEX_FOR_SINGLE_LETTER)
                 if (stringArray[i].matches(REGEX_FOR_SINGLE_LETTER)
                         || stringArray[i].matches(REGEX_FOR_DIGITS_WITH_SINGLE_LETTER)) {
                         || stringArray[i].matches(REGEX_FOR_DIGITS_WITH_SINGLE_LETTER)) {
                     ruleChecker = ruleChecker + stringArray[i].toLowerCase();
                     ruleChecker = ruleChecker + stringArray[i].toLowerCase();
@@ -359,23 +387,25 @@ public final class JavaIdentifierSyntax {
                 ruleChecker = ruleChecker + stringArray[i].substring(0, 1).toUpperCase() + stringArray[i].substring(1);
                 ruleChecker = ruleChecker + stringArray[i].substring(0, 1).toUpperCase() + stringArray[i].substring(1);
             }
             }
         }
         }
-        String ruleCheckerWithPrefix = addPrefix(ruleChecker);
+        String ruleCheckerWithPrefix = addPrefix(ruleChecker, conflictResolver);
         return restrictConsecutiveCapitalCase(ruleCheckerWithPrefix);
         return restrictConsecutiveCapitalCase(ruleCheckerWithPrefix);
     }
     }
 
 
     /**
     /**
-     * Adds prefix YANG auto prefix if the string begins with digit or is a java key word.
+     * Adds prefix, if the string begins with digit or is a java key word.
      *
      *
      * @param camelCasePrefix string for adding prefix
      * @param camelCasePrefix string for adding prefix
+     * @param conflictResolver object of YANG to java naming conflict util
      * @return prefixed camel case string
      * @return prefixed camel case string
      */
      */
-    private static String addPrefix(String camelCasePrefix) {
+    private static String addPrefix(String camelCasePrefix, YangToJavaNamingConflictUtil conflictResolver) {
 
 
+        String prefix = getPrefixForIdentifier(conflictResolver);
         if (camelCasePrefix.matches(REGEX_FOR_FIRST_DIGIT)) {
         if (camelCasePrefix.matches(REGEX_FOR_FIRST_DIGIT)) {
-            camelCasePrefix = YANG_AUTO_PREFIX + camelCasePrefix;
+            camelCasePrefix = prefix + camelCasePrefix;
         }
         }
-        if (JAVA_KEY_WORDS.contains(camelCasePrefix.toLowerCase())) {
-            camelCasePrefix = YANG_AUTO_PREFIX + camelCasePrefix.substring(0, 1).toUpperCase()
+        if (JAVA_KEY_WORDS.contains(camelCasePrefix)) {
+            camelCasePrefix = prefix + camelCasePrefix.substring(0, 1).toUpperCase()
                     + camelCasePrefix.substring(1);
                     + camelCasePrefix.substring(1);
         }
         }
         return camelCasePrefix;
         return camelCasePrefix;
@@ -444,13 +474,21 @@ public final class JavaIdentifierSyntax {
      */
      */
     public static String getEnumJavaAttribute(String name) {
     public static String getEnumJavaAttribute(String name) {
 
 
-        String[] strArray = name.split(HYPHEN);
+        name = name.replaceAll(REGEX_WITH_ALL_SPECIAL_CHAR, COLAN);
+        String[] strArray = name.split(COLAN);
         String output = EMPTY_STRING;
         String output = EMPTY_STRING;
+        if (strArray[0].isEmpty()) {
+            List<String> stringArrangement = new ArrayList<String>();
+            for (int i = 1; i < strArray.length; i++) {
+                stringArrangement.add(strArray[i]);
+            }
+            strArray = stringArrangement.toArray(new String[stringArrangement.size()]);
+        }
         for (int i = 0; i < strArray.length; i++) {
         for (int i = 0; i < strArray.length; i++) {
-            output = output + strArray[i];
-            if (i > 0 && i < strArray.length - 1) {
+            if (i > 0 && i < strArray.length) {
                 output = output + UNDER_SCORE;
                 output = output + UNDER_SCORE;
             }
             }
+            output = output + strArray[i];
         }
         }
         return output;
         return output;
     }
     }

@@ -26,11 +26,14 @@ import org.onosproject.yangutils.translator.tojava.JavaAttributeInfo;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaAugment;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaAugment;
 import org.onosproject.yangutils.utils.io.impl.JavaDocGen;
 import org.onosproject.yangutils.utils.io.impl.JavaDocGen;
 
 
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType.getParseFromStringMethod;
 import static org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType.getParseFromStringMethod;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getSmallCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getSmallCase;
+import static org.onosproject.yangutils.utils.UtilConstants.ACTIVATE;
+import static org.onosproject.yangutils.utils.UtilConstants.ACTIVATE_ANNOTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.ADD_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.ADD_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.AND;
 import static org.onosproject.yangutils.utils.UtilConstants.AND;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTABLE;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTABLE;
@@ -48,6 +51,8 @@ import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_PARENTHESIS;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_PARENTHESIS;
 import static org.onosproject.yangutils.utils.UtilConstants.COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
+import static org.onosproject.yangutils.utils.UtilConstants.DEACTIVATE;
+import static org.onosproject.yangutils.utils.UtilConstants.DEACTIVATE_ANNOTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.DEFAULT;
 import static org.onosproject.yangutils.utils.UtilConstants.DEFAULT;
 import static org.onosproject.yangutils.utils.UtilConstants.DIAMOND_CLOSE_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.DIAMOND_CLOSE_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.DIAMOND_OPEN_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.DIAMOND_OPEN_BRACKET;
@@ -93,7 +98,9 @@ import static org.onosproject.yangutils.utils.UtilConstants.SET_METHOD_PREFIX;
 import static org.onosproject.yangutils.utils.UtilConstants.SHORT;
 import static org.onosproject.yangutils.utils.UtilConstants.SHORT;
 import static org.onosproject.yangutils.utils.UtilConstants.SIXTEEN_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.SIXTEEN_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
+import static org.onosproject.yangutils.utils.UtilConstants.STARTED_LOG_INFO;
 import static org.onosproject.yangutils.utils.UtilConstants.STATIC;
 import static org.onosproject.yangutils.utils.UtilConstants.STATIC;
+import static org.onosproject.yangutils.utils.UtilConstants.STOPPED_LOG_INFO;
 import static org.onosproject.yangutils.utils.UtilConstants.STRING_DATA_TYPE;
 import static org.onosproject.yangutils.utils.UtilConstants.STRING_DATA_TYPE;
 import static org.onosproject.yangutils.utils.UtilConstants.SUFFIX_S;
 import static org.onosproject.yangutils.utils.UtilConstants.SUFFIX_S;
 import static org.onosproject.yangutils.utils.UtilConstants.SWITCH;
 import static org.onosproject.yangutils.utils.UtilConstants.SWITCH;
@@ -106,6 +113,7 @@ import static org.onosproject.yangutils.utils.UtilConstants.TWELVE_SPACE_INDENTA
 import static org.onosproject.yangutils.utils.UtilConstants.VALUE;
 import static org.onosproject.yangutils.utils.UtilConstants.VALUE;
 import static org.onosproject.yangutils.utils.UtilConstants.VOID;
 import static org.onosproject.yangutils.utils.UtilConstants.VOID;
 import static org.onosproject.yangutils.utils.UtilConstants.YANG_UTILS_TODO;
 import static org.onosproject.yangutils.utils.UtilConstants.YANG_UTILS_TODO;
+import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.BUILD_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.BUILD_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.CONSTRUCTOR;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.CONSTRUCTOR;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.DEFAULT_CONSTRUCTOR;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.DEFAULT_CONSTRUCTOR;
@@ -115,7 +123,6 @@ import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.MAN
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.OF_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.OF_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.SETTER_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.SETTER_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.TYPE_CONSTRUCTOR;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.TYPE_CONSTRUCTOR;
-import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
 
 
 /**
 /**
@@ -133,10 +140,11 @@ public final class MethodsGenerator {
      * Returns the methods strings for builder interface.
      * Returns the methods strings for builder interface.
      *
      *
      * @param name attribute name
      * @param name attribute name
+     * @param pluginConfig plugin configurations
      * @return method string for builder interface
      * @return method string for builder interface
      */
      */
-    public static String parseBuilderInterfaceBuildMethodString(String name) {
-        return getJavaDoc(BUILD_METHOD, name, false) + getBuildForInterface(name);
+    public static String parseBuilderInterfaceBuildMethodString(String name, YangPluginConfig pluginConfig) {
+        return getJavaDoc(BUILD_METHOD, name, false, pluginConfig) + getBuildForInterface(name);
     }
     }
 
 
     /**
     /**
@@ -144,14 +152,16 @@ public final class MethodsGenerator {
      *
      *
      * @param attr attribute info
      * @param attr attribute info
      * @param generatedJavaFiles generated java files
      * @param generatedJavaFiles generated java files
+     * @param pluginConfig plugin configurations
      * @return getter string
      * @return getter string
      */
      */
-    public static String getGetterString(JavaAttributeInfo attr, int generatedJavaFiles) {
+    public static String getGetterString(JavaAttributeInfo attr, int generatedJavaFiles,
+            YangPluginConfig pluginConfig) {
 
 
         String returnType = getReturnType(attr);
         String returnType = getReturnType(attr);
         String attributeName = attr.getAttributeName();
         String attributeName = attr.getAttributeName();
 
 
-        return getJavaDoc(GETTER_METHOD, attributeName, attr.isListAttr())
+        return getJavaDoc(GETTER_METHOD, attributeName, attr.isListAttr(), pluginConfig)
                 + getGetterForInterface(attributeName, returnType, attr.isListAttr(), generatedJavaFiles);
                 + getGetterForInterface(attributeName, returnType, attr.isListAttr(), generatedJavaFiles);
     }
     }
 
 
@@ -161,20 +171,22 @@ public final class MethodsGenerator {
      * @param attr attribute info
      * @param attr attribute info
      * @param className java class name
      * @param className java class name
      * @param generatedJavaFiles generated java files
      * @param generatedJavaFiles generated java files
+     * @param pluginConfig plugin configurations
      * @return setter string
      * @return setter string
      */
      */
-    public static String getSetterString(JavaAttributeInfo attr, String className, int generatedJavaFiles) {
+    public static String getSetterString(JavaAttributeInfo attr, String className, int generatedJavaFiles,
+            YangPluginConfig pluginConfig) {
 
 
         String attrType = getReturnType(attr);
         String attrType = getReturnType(attr);
         String attributeName = attr.getAttributeName();
         String attributeName = attr.getAttributeName();
         JavaDocGen.JavaDocType type;
         JavaDocGen.JavaDocType type;
-        if (generatedJavaFiles == GENERATE_SERVICE_AND_MANAGER) {
+        if ((generatedJavaFiles & GENERATE_SERVICE_AND_MANAGER) != 0) {
             type = MANAGER_SETTER_METHOD;
             type = MANAGER_SETTER_METHOD;
         } else {
         } else {
             type = SETTER_METHOD;
             type = SETTER_METHOD;
         }
         }
 
 
-        return getJavaDoc(type, attributeName, attr.isListAttr())
+        return getJavaDoc(type, attributeName, attr.isListAttr(), pluginConfig)
                 + getSetterForInterface(attributeName, attrType, className, attr.isListAttr(), generatedJavaFiles);
                 + getSetterForInterface(attributeName, attrType, className, attr.isListAttr(), generatedJavaFiles);
     }
     }
 
 
@@ -182,10 +194,11 @@ public final class MethodsGenerator {
      * Returns constructor method string.
      * Returns constructor method string.
      *
      *
      * @param name class name
      * @param name class name
+     * @param pluginConfig plugin configurations
      * @return constructor string
      * @return constructor string
      */
      */
-    public static String getConstructorString(String name) {
-        return getJavaDoc(CONSTRUCTOR, name, false);
+    public static String getConstructorString(String name, YangPluginConfig pluginConfig) {
+        return getJavaDoc(CONSTRUCTOR, name, false, pluginConfig);
     }
     }
 
 
     /**
     /**
@@ -193,10 +206,13 @@ public final class MethodsGenerator {
      *
      *
      * @param name class name
      * @param name class name
      * @param modifierType modifier type
      * @param modifierType modifier type
+     * @param pluginConfig plugin configurations
      * @return default constructor string
      * @return default constructor string
      */
      */
-    public static String getDefaultConstructorString(String name, String modifierType) {
-        return getJavaDoc(DEFAULT_CONSTRUCTOR, name, false) + getDefaultConstructor(name, modifierType)
+    public static String getDefaultConstructorString(String name, String modifierType,
+            YangPluginConfig pluginConfig) {
+        return getJavaDoc(DEFAULT_CONSTRUCTOR, name, false, pluginConfig)
+                + getDefaultConstructor(name, modifierType)
                 + NEW_LINE;
                 + NEW_LINE;
     }
     }
 
 
@@ -249,7 +265,7 @@ public final class MethodsGenerator {
      * @return getter for attribute
      * @return getter for attribute
      */
      */
     public static String getGetter(String type, String name, int generatedJavaFiles) {
     public static String getGetter(String type, String name, int generatedJavaFiles) {
-        String ret = parseTypeForGetter(type);
+        String ret = parseTypeForReturnValue(type);
         if ((generatedJavaFiles & GENERATE_SERVICE_AND_MANAGER) != 0) {
         if ((generatedJavaFiles & GENERATE_SERVICE_AND_MANAGER) != 0) {
             return FOUR_SPACE_INDENTATION + PUBLIC + SPACE + type + SPACE + GET_METHOD_PREFIX + getCapitalCase(name)
             return FOUR_SPACE_INDENTATION + PUBLIC + SPACE + type + SPACE + GET_METHOD_PREFIX + getCapitalCase(name)
                     + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE +
                     + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE +
@@ -265,7 +281,7 @@ public final class MethodsGenerator {
     }
     }
 
 
     /*Provides string to return for type.*/
     /*Provides string to return for type.*/
-    private static String parseTypeForGetter(String type) {
+    private static String parseTypeForReturnValue(String type) {
         switch (type) {
         switch (type) {
         case BYTE:
         case BYTE:
         case INT:
         case INT:
@@ -312,12 +328,17 @@ public final class MethodsGenerator {
                     + getCapitalCase(name) + OPEN_PARENTHESIS + type + SPACE + name + CLOSE_PARENTHESIS + SPACE +
                     + getCapitalCase(name) + OPEN_PARENTHESIS + type + SPACE + name + CLOSE_PARENTHESIS + SPACE +
                     OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + YANG_UTILS_TODO +
                     OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + YANG_UTILS_TODO +
                     NEW_LINE + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
                     NEW_LINE + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
+        } else if (generatedJavaFiles == GENERATE_EVENT_SUBJECT_CLASS) {
+            return FOUR_SPACE_INDENTATION + PUBLIC + SPACE + VOID + SPACE + name + OPEN_PARENTHESIS + type + SPACE
+                    + name + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION
+                    + THIS + PERIOD + name + SPACE + EQUAL + SPACE + name + SEMI_COLAN + NEW_LINE
+                    + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
         } else {
         } else {
             return FOUR_SPACE_INDENTATION + PUBLIC + SPACE + className + BUILDER + SPACE +
             return FOUR_SPACE_INDENTATION + PUBLIC + SPACE + className + BUILDER + SPACE +
                     name + OPEN_PARENTHESIS + type + SPACE + name + CLOSE_PARENTHESIS + SPACE
                     name + OPEN_PARENTHESIS + type + SPACE + name + CLOSE_PARENTHESIS + SPACE
-                    + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + THIS + PERIOD + name + SPACE + EQUAL +
-                    SPACE + name + SEMI_COLAN + NEW_LINE + EIGHT_SPACE_INDENTATION + RETURN + SPACE + THIS +
-                    SEMI_COLAN + NEW_LINE + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
+                    + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + THIS + PERIOD + name + SPACE
+                    + EQUAL + SPACE + name + SEMI_COLAN + NEW_LINE + EIGHT_SPACE_INDENTATION + RETURN + SPACE
+                    + THIS + SEMI_COLAN + NEW_LINE + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
         }
         }
     }
     }
 
 
@@ -474,13 +495,16 @@ public final class MethodsGenerator {
      * Returns constructor string for impl class.
      * Returns constructor string for impl class.
      *
      *
      * @param yangName class name
      * @param yangName class name
+     * @param pluginConfig plugin configurations
      * @return constructor string
      * @return constructor string
      */
      */
-    public static String getConstructorStart(String yangName) {
+    public static String getConstructorStart(String yangName, YangPluginConfig pluginConfig) {
 
 
-        String javadoc = getConstructorString(yangName);
-        String constructor = FOUR_SPACE_INDENTATION + PUBLIC + SPACE + yangName + IMPL + OPEN_PARENTHESIS + yangName
-                + BUILDER + SPACE + BUILDER.toLowerCase() + OBJECT + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET
+        String javadoc = getConstructorString(yangName, pluginConfig);
+        String constructor =
+                FOUR_SPACE_INDENTATION + PUBLIC + SPACE + yangName + IMPL + OPEN_PARENTHESIS + yangName
+                        + BUILDER + SPACE + BUILDER.toLowerCase() + OBJECT + CLOSE_PARENTHESIS + SPACE
+                        + OPEN_CURLY_BRACKET
                         + NEW_LINE;
                         + NEW_LINE;
         return javadoc + constructor;
         return javadoc + constructor;
     }
     }
@@ -491,24 +515,29 @@ public final class MethodsGenerator {
      * @param yangName name of the class
      * @param yangName name of the class
      * @param attr attribute info
      * @param attr attribute info
      * @param generatedJavaFiles generated java files
      * @param generatedJavaFiles generated java files
+     * @param pluginConfig plugin configurations
      * @return constructor for class
      * @return constructor for class
      */
      */
-    public static String getConstructor(String yangName, JavaAttributeInfo attr, int generatedJavaFiles) {
+    public static String getConstructor(String yangName, JavaAttributeInfo attr, int generatedJavaFiles,
+            YangPluginConfig pluginConfig) {
 
 
         String attributeName = attr.getAttributeName();
         String attributeName = attr.getAttributeName();
         String constructor;
         String constructor;
 
 
         if ((generatedJavaFiles & GENERATE_SERVICE_AND_MANAGER) != 0) {
         if ((generatedJavaFiles & GENERATE_SERVICE_AND_MANAGER) != 0) {
-            constructor = EIGHT_SPACE_INDENTATION + THIS + PERIOD + getCamelCase(attributeName, null) + SPACE + EQUAL
+            constructor =
+                    EIGHT_SPACE_INDENTATION + THIS + PERIOD
+                            + getCamelCase(attributeName, pluginConfig.getConflictResolver()) + SPACE + EQUAL
                             + SPACE + BUILDER.toLowerCase() + OBJECT + PERIOD + GET_METHOD_PREFIX
                             + SPACE + BUILDER.toLowerCase() + OBJECT + PERIOD + GET_METHOD_PREFIX
-                    + getCapitalCase(getCamelCase(attributeName, null)) + OPEN_PARENTHESIS + CLOSE_PARENTHESIS +
-                    SEMI_COLAN
-                    + NEW_LINE;
+                            + getCapitalCase(getCamelCase(attributeName, pluginConfig.getConflictResolver()))
+                            + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SEMI_COLAN + NEW_LINE;
         } else {
         } else {
-            constructor = EIGHT_SPACE_INDENTATION + THIS + PERIOD + getCamelCase(attributeName, null) + SPACE + EQUAL
-                    + SPACE + BUILDER.toLowerCase() + OBJECT + PERIOD + getCamelCase(attributeName, null) +
-                    OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SEMI_COLAN
-                    + NEW_LINE;
+            constructor =
+                    EIGHT_SPACE_INDENTATION + THIS + PERIOD
+                            + getCamelCase(attributeName, pluginConfig.getConflictResolver()) + SPACE + EQUAL
+                            + SPACE + BUILDER.toLowerCase() + OBJECT + PERIOD
+                            + getCamelCase(attributeName, pluginConfig.getConflictResolver()) +
+                            OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SEMI_COLAN + NEW_LINE;
         }
         }
         return constructor;
         return constructor;
     }
     }
@@ -519,17 +548,18 @@ public final class MethodsGenerator {
      * @param rpcName name of the rpc
      * @param rpcName name of the rpc
      * @param inputName name of input
      * @param inputName name of input
      * @param outputName name of output
      * @param outputName name of output
+     * @param pluginConfig plugin configurations
      * @return rpc method string
      * @return rpc method string
      */
      */
-    public static String getRpcServiceMethod(String rpcName, String inputName, String outputName) {
+    public static String getRpcServiceMethod(String rpcName, String inputName, String outputName,
+            YangPluginConfig pluginConfig) {
 
 
-        rpcName = getCamelCase(rpcName, null);
-        inputName = getCapitalCase(inputName);
-        if (!outputName.equals(VOID)) {
-            outputName = getCapitalCase(outputName);
+        rpcName = getCamelCase(rpcName, pluginConfig.getConflictResolver());
+        if (!inputName.equals(EMPTY_STRING)) {
+            inputName = inputName + SPACE + RPC_INPUT_VAR_NAME;
         }
         }
-        return FOUR_SPACE_INDENTATION + outputName + SPACE + rpcName + OPEN_PARENTHESIS + inputName + SPACE
-                + RPC_INPUT_VAR_NAME + CLOSE_PARENTHESIS + SEMI_COLAN;
+        return FOUR_SPACE_INDENTATION + outputName + SPACE + rpcName + OPEN_PARENTHESIS + inputName
+                + CLOSE_PARENTHESIS + SEMI_COLAN;
     }
     }
 
 
     /**
     /**
@@ -538,21 +568,24 @@ public final class MethodsGenerator {
      * @param rpcName name of the rpc
      * @param rpcName name of the rpc
      * @param inputName name of input
      * @param inputName name of input
      * @param outputName name of output
      * @param outputName name of output
+     * @param pluginConfig plugin configurations
      * @return rpc method string
      * @return rpc method string
      */
      */
-    public static String getRpcManagerMethod(String rpcName, String inputName, String outputName) {
+    public static String getRpcManagerMethod(String rpcName, String inputName, String outputName,
+            YangPluginConfig pluginConfig) {
 
 
-        rpcName = getCamelCase(rpcName, null);
-        inputName = getCapitalCase(inputName);
-        if (!outputName.equals(VOID)) {
-            outputName = getCapitalCase(outputName);
+        rpcName = getCamelCase(rpcName, pluginConfig.getConflictResolver());
+        if (!inputName.equals(EMPTY_STRING)) {
+            inputName = inputName + SPACE + RPC_INPUT_VAR_NAME;
         }
         }
 
 
-        String method = getOverRideString() + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + outputName + SPACE + rpcName
-                + OPEN_PARENTHESIS + inputName + SPACE + RPC_INPUT_VAR_NAME + CLOSE_PARENTHESIS + SPACE
+        String method =
+                getOverRideString() + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + outputName + SPACE + rpcName
+                        + OPEN_PARENTHESIS + inputName + CLOSE_PARENTHESIS + SPACE
                         + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + YANG_UTILS_TODO + NEW_LINE;
                         + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + YANG_UTILS_TODO + NEW_LINE;
         if (!outputName.contentEquals(VOID)) {
         if (!outputName.contentEquals(VOID)) {
-            method += EIGHT_SPACE_INDENTATION + RETURN + SPACE + NULL + SEMI_COLAN + NEW_LINE;
+            method += EIGHT_SPACE_INDENTATION + RETURN + SPACE + parseTypeForReturnValue(outputName) + SEMI_COLAN
+                    + NEW_LINE;
         }
         }
         method += FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
         method += FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
 
 
@@ -631,12 +664,14 @@ public final class MethodsGenerator {
      * Returns from string method's open string.
      * Returns from string method's open string.
      *
      *
      * @param className name of the class
      * @param className name of the class
+     * @param pluginConfig plugin configurations
      * @return from string method's open string
      * @return from string method's open string
      */
      */
-    public static String getFromStringMethodSignature(String className) {
-        return getJavaDoc(FROM_METHOD, className, false) + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + STATIC + SPACE
-                + className + SPACE + FROM_STRING_METHOD_NAME + OPEN_PARENTHESIS + STRING_DATA_TYPE + SPACE
-                + FROM_STRING_PARAM_NAME + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
+    public static String getFromStringMethodSignature(String className, YangPluginConfig pluginConfig) {
+        return getJavaDoc(FROM_METHOD, className, false, pluginConfig) + FOUR_SPACE_INDENTATION + PUBLIC + SPACE
+                + STATIC + SPACE + className + SPACE + FROM_STRING_METHOD_NAME + OPEN_PARENTHESIS
+                + STRING_DATA_TYPE + SPACE + FROM_STRING_PARAM_NAME + CLOSE_PARENTHESIS + SPACE
+                + OPEN_CURLY_BRACKET + NEW_LINE;
     }
     }
 
 
     /**
     /**
@@ -832,14 +867,16 @@ public final class MethodsGenerator {
      *
      *
      * @param attr attribute info
      * @param attr attribute info
      * @param generatedJavaClassName class name
      * @param generatedJavaClassName class name
+     * @param pluginConfig plugin configurations
      * @return of method's string and java doc for special type
      * @return of method's string and java doc for special type
      */
      */
-    public static String getOfMethodStringAndJavaDoc(JavaAttributeInfo attr, String generatedJavaClassName) {
+    public static String getOfMethodStringAndJavaDoc(JavaAttributeInfo attr, String generatedJavaClassName,
+            YangPluginConfig pluginConfig) {
 
 
         String attrType = getReturnType(attr);
         String attrType = getReturnType(attr);
         String attrName = attr.getAttributeName();
         String attrName = attr.getAttributeName();
 
 
-        return getJavaDoc(OF_METHOD, generatedJavaClassName + " for type " + attrName, false)
+        return getJavaDoc(OF_METHOD, generatedJavaClassName + " for type " + attrName, false, pluginConfig)
                 + getOfMethodString(attrType, generatedJavaClassName);
                 + getOfMethodString(attrType, generatedJavaClassName);
     }
     }
 
 
@@ -863,14 +900,16 @@ public final class MethodsGenerator {
      *
      *
      * @param attr attribute info
      * @param attr attribute info
      * @param generatedJavaClassName class name
      * @param generatedJavaClassName class name
+     * @param pluginConfig plugin configurations
      * @return string and java doc for constructor of type class
      * @return string and java doc for constructor of type class
      */
      */
-    public static String getTypeConstructorStringAndJavaDoc(JavaAttributeInfo attr, String generatedJavaClassName) {
+    public static String getTypeConstructorStringAndJavaDoc(JavaAttributeInfo attr,
+            String generatedJavaClassName, YangPluginConfig pluginConfig) {
 
 
         String attrType = getReturnType(attr);
         String attrType = getReturnType(attr);
         String attrName = attr.getAttributeName();
         String attrName = attr.getAttributeName();
 
 
-        return getJavaDoc(TYPE_CONSTRUCTOR, generatedJavaClassName + " for type " + attrName, false)
+        return getJavaDoc(TYPE_CONSTRUCTOR, generatedJavaClassName + " for type " + attrName, false, pluginConfig)
                 + getTypeConstructorString(attrType, attrName, generatedJavaClassName);
                 + getTypeConstructorString(attrType, attrName, generatedJavaClassName);
     }
     }
 
 
@@ -986,10 +1025,11 @@ public final class MethodsGenerator {
      * @param attr java attribute
      * @param attr java attribute
      * @param enumMap enum's sets map
      * @param enumMap enum's sets map
      * @param enumList enum's sets list
      * @param enumList enum's sets list
+     * @param pluginConfig plugin configurations
      * @return of method
      * @return of method
      */
      */
     public static String getEnumsOfMethod(String className, JavaAttributeInfo attr,
     public static String getEnumsOfMethod(String className, JavaAttributeInfo attr,
-            Map<String, Integer> enumMap, List<String> enumList) {
+            Map<String, Integer> enumMap, List<String> enumList, YangPluginConfig pluginConfig) {
         String attrType = getReturnType(attr);
         String attrType = getReturnType(attr);
         String attrName = attr.getAttributeName();
         String attrName = attr.getAttributeName();
 
 
@@ -1010,6 +1050,37 @@ public final class MethodsGenerator {
                 + RETURN + SPACE + NULL + SEMI_COLAN + NEW_LINE + EIGHT_SPACE_INDENTATION + CLOSE_CURLY_BRACKET
                 + RETURN + SPACE + NULL + SEMI_COLAN + NEW_LINE + EIGHT_SPACE_INDENTATION + CLOSE_CURLY_BRACKET
                 + NEW_LINE + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
                 + NEW_LINE + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
 
 
-        return getJavaDoc(OF_METHOD, getCapitalCase(className) + " for type " + attrName, false) + method;
+        return getJavaDoc(OF_METHOD, getCapitalCase(className) + " for type " + attrName, false, pluginConfig)
+                + method;
+    }
+
+    /**
+     * Returns activate method string.
+     *
+     * @return activate method string
+     */
+    public static String addActivateMethod() {
+        return FOUR_SPACE_INDENTATION + ACTIVATE_ANNOTATION + FOUR_SPACE_INDENTATION
+                + PUBLIC + SPACE + VOID + SPACE + ACTIVATE + OPEN_PARENTHESIS
+                + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET
+                + NEW_LINE + EIGHT_SPACE_INDENTATION
+                + YANG_UTILS_TODO
+                + NEW_LINE + EIGHT_SPACE_INDENTATION
+                + STARTED_LOG_INFO + FOUR_SPACE_INDENTATION
+                + CLOSE_CURLY_BRACKET + NEW_LINE;
     }
     }
+
+    /**
+     * Returns deactivate method string.
+     *
+     * @return deactivate method string
+     */
+    public static String addDeActivateMethod() {
+        return NEW_LINE + FOUR_SPACE_INDENTATION + DEACTIVATE_ANNOTATION + FOUR_SPACE_INDENTATION
+                + PUBLIC + SPACE + VOID + SPACE + DEACTIVATE + OPEN_PARENTHESIS
+                + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION
+                + YANG_UTILS_TODO + NEW_LINE + EIGHT_SPACE_INDENTATION
+                + STOPPED_LOG_INFO + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET + NEW_LINE;
+    }
+
 }
 }

@@ -29,30 +29,44 @@ import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaAugment;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaAugment;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaInput;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModule;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModule;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaOutput;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaSubModule;
 
 
 import static java.util.Collections.sort;
 import static java.util.Collections.sort;
 
 
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getSmallCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getSmallCase;
+import static org.onosproject.yangutils.utils.UtilConstants.ACTIVATE_ANNOTATION_IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.ADD_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.ADD_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION_HOLDER;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION_HOLDER;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED_INFO;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED_INFO;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_PARENTHESIS;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_PARENTHESIS;
+import static org.onosproject.yangutils.utils.UtilConstants.COMPONENT_ANNOTATION_IMPORT;
+import static org.onosproject.yangutils.utils.UtilConstants.DEACTIVATE_ANNOTATION_IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.EIGHT_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.EIGHT_SPACE_INDENTATION;
+import static org.onosproject.yangutils.utils.UtilConstants.ENUM;
 import static org.onosproject.yangutils.utils.UtilConstants.EQUAL;
 import static org.onosproject.yangutils.utils.UtilConstants.EQUAL;
+import static org.onosproject.yangutils.utils.UtilConstants.FOUR_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPL;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPL;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_SERVICE;
+import static org.onosproject.yangutils.utils.UtilConstants.LOGGER_FACTORY_IMPORT;
+import static org.onosproject.yangutils.utils.UtilConstants.LOGGER_IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
+import static org.onosproject.yangutils.utils.UtilConstants.OPEN_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.OPEN_PARENTHESIS;
 import static org.onosproject.yangutils.utils.UtilConstants.OPEN_PARENTHESIS;
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
+import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
+import static org.onosproject.yangutils.utils.UtilConstants.SERVICE_ANNOTATION_IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.THIS;
 import static org.onosproject.yangutils.utils.UtilConstants.THIS;
+import static org.onosproject.yangutils.utils.UtilConstants.TYPE;
 import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.updateFileHandle;
 import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.updateFileHandle;
 
 
 /**
 /**
@@ -102,12 +116,6 @@ public final class TempJavaCodeFragmentFilesUtils {
         if (container.getBeanTempFiles() != null) {
         if (container.getBeanTempFiles() != null) {
             return container.getBeanTempFiles();
             return container.getBeanTempFiles();
         }
         }
-        if (container.getEventTempFiles() != null) {
-            return container.getEventTempFiles();
-        }
-        if (container.getEventListenerTempFiles() != null) {
-            return container.getEventListenerTempFiles();
-        }
         if (container.getServiceTempFiles() != null) {
         if (container.getServiceTempFiles() != null) {
             return container.getServiceTempFiles();
             return container.getServiceTempFiles();
         }
         }
@@ -234,6 +242,31 @@ public final class TempJavaCodeFragmentFilesUtils {
     }
     }
 
 
     /**
     /**
+     * Adds annotations imports.
+     *
+     * @param imports list if imports
+     * @param operation to add or to delete
+     */
+    public static void addAnnotationsImports(List<String> imports, boolean operation) {
+        if (operation) {
+            imports.add(ACTIVATE_ANNOTATION_IMPORT);
+            imports.add(DEACTIVATE_ANNOTATION_IMPORT);
+            imports.add(COMPONENT_ANNOTATION_IMPORT);
+            imports.add(SERVICE_ANNOTATION_IMPORT);
+            imports.add(LOGGER_FACTORY_IMPORT);
+            imports.add(LOGGER_IMPORT);
+        } else {
+            imports.remove(ACTIVATE_ANNOTATION_IMPORT);
+            imports.remove(DEACTIVATE_ANNOTATION_IMPORT);
+            imports.remove(COMPONENT_ANNOTATION_IMPORT);
+            imports.remove(SERVICE_ANNOTATION_IMPORT);
+            imports.remove(LOGGER_FACTORY_IMPORT);
+            imports.remove(LOGGER_IMPORT);
+        }
+        sortImports(imports);
+    }
+
+    /**
      * Performs given operations on import list.
      * Performs given operations on import list.
      *
      *
      * @param imports list of imports
      * @param imports list of imports
@@ -309,6 +342,12 @@ public final class TempJavaCodeFragmentFilesUtils {
             JavaQualifiedTypeInfo qualifiedTypeInfo) {
             JavaQualifiedTypeInfo qualifiedTypeInfo) {
 
 
         YangNode parent = curNode.getParent();
         YangNode parent = curNode.getParent();
+        if (parent instanceof YangJavaModule
+                || parent instanceof YangJavaSubModule
+                || parent instanceof YangJavaInput
+                || parent instanceof YangJavaOutput) {
+            return false;
+        }
         String parentsClassInfo = getCapitalCase(((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName());
         String parentsClassInfo = getCapitalCase(((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName());
         String childsClassInfo = qualifiedTypeInfo.getClassInfo();
         String childsClassInfo = qualifiedTypeInfo.getClassInfo();
         if (childsClassInfo.equals(parentsClassInfo)) {
         if (childsClassInfo.equals(parentsClassInfo)) {
@@ -328,4 +367,13 @@ public final class TempJavaCodeFragmentFilesUtils {
         return imports;
         return imports;
     }
     }
 
 
+    /**
+     * Returns event enum start.
+     *
+     * @return event enum start
+     */
+    public static String getEventEnumTypeStart() {
+        return FOUR_SPACE_INDENTATION + PUBLIC + SPACE + ENUM + SPACE + TYPE + SPACE + OPEN_CURLY_BRACKET
+                + NEW_LINE;
+    }
 }
 }

@@ -32,11 +32,17 @@ import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.javamodel.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.javamodel.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaEnumeration;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaEnumeration;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModule;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaSubModule;
 
 
 import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.isRpcChildNodePresent;
 import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.isRpcChildNodePresent;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles.addCurNodeInfoInParentTempFile;
 import static org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles.addCurNodeInfoInParentTempFile;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCurNodePackage;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCurNodePackage;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getPackageDirPathFromJavaJPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getPackageDirPathFromJavaJPackage;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION_HOLDER;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION_HOLDER;
@@ -49,7 +55,7 @@ import static org.onosproject.yangutils.utils.UtilConstants.PROVIDED_AUGMENTATIO
 public final class YangJavaModelUtils {
 public final class YangJavaModelUtils {
 
 
     /**
     /**
-     * Creates YANG java model utility.
+     * Creates an instance of YANG java model utility.
      */
      */
     private YangJavaModelUtils() {
     private YangJavaModelUtils() {
     }
     }
@@ -64,6 +70,7 @@ public final class YangJavaModelUtils {
     public static void updatePackageInfo(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
     public static void updatePackageInfo(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
             YangPluginConfig yangPluginConfig)
             YangPluginConfig yangPluginConfig)
             throws IOException {
             throws IOException {
+
         javaCodeGeneratorInfo.getJavaFileInfo()
         javaCodeGeneratorInfo.getJavaFileInfo()
                 .setJavaName(getCamelCase(((YangNode) javaCodeGeneratorInfo).getName(),
                 .setJavaName(getCamelCase(((YangNode) javaCodeGeneratorInfo).getName(),
                         yangPluginConfig.getConflictResolver()));
                         yangPluginConfig.getConflictResolver()));
@@ -71,6 +78,7 @@ public final class YangJavaModelUtils {
         javaCodeGeneratorInfo.getJavaFileInfo().setPackageFilePath(
         javaCodeGeneratorInfo.getJavaFileInfo().setPackageFilePath(
                 getPackageDirPathFromJavaJPackage(javaCodeGeneratorInfo.getJavaFileInfo().getPackage()));
                 getPackageDirPathFromJavaJPackage(javaCodeGeneratorInfo.getJavaFileInfo().getPackage()));
         javaCodeGeneratorInfo.getJavaFileInfo().setBaseCodeGenPath(yangPluginConfig.getCodeGenDir());
         javaCodeGeneratorInfo.getJavaFileInfo().setBaseCodeGenPath(yangPluginConfig.getCodeGenDir());
+        javaCodeGeneratorInfo.getJavaFileInfo().setPluginConfig(yangPluginConfig);
     }
     }
 
 
     /**
     /**
@@ -90,6 +98,7 @@ public final class YangJavaModelUtils {
         javaCodeGeneratorInfo.getJavaFileInfo().setPackageFilePath(
         javaCodeGeneratorInfo.getJavaFileInfo().setPackageFilePath(
                 getPackageDirPathFromJavaJPackage(javaCodeGeneratorInfo.getJavaFileInfo().getPackage()));
                 getPackageDirPathFromJavaJPackage(javaCodeGeneratorInfo.getJavaFileInfo().getPackage()));
         javaCodeGeneratorInfo.getJavaFileInfo().setBaseCodeGenPath(yangPlugin.getCodeGenDir());
         javaCodeGeneratorInfo.getJavaFileInfo().setBaseCodeGenPath(yangPlugin.getCodeGenDir());
+        javaCodeGeneratorInfo.getJavaFileInfo().setPluginConfig(yangPlugin);
     }
     }
 
 
     /**
     /**
@@ -120,6 +129,16 @@ public final class YangJavaModelUtils {
             javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
             javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
                     .getServiceTempFiles().addCurNodeLeavesInfoToTempFiles(
                     .getServiceTempFiles().addCurNodeLeavesInfoToTempFiles(
                             (YangNode) javaCodeGeneratorInfo, yangPluginConfig);
                             (YangNode) javaCodeGeneratorInfo, yangPluginConfig);
+            if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaModule) {
+                if (!((YangJavaModule) javaCodeGeneratorInfo).getNotificationNodes().isEmpty()) {
+                    updateNotificaitonNodeInfo(javaCodeGeneratorInfo, yangPluginConfig);
+                }
+            } else if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaSubModule) {
+                if (!((YangJavaSubModule) javaCodeGeneratorInfo).getNotificationNodes().isEmpty()) {
+                    updateNotificaitonNodeInfo(javaCodeGeneratorInfo, yangPluginConfig);
+                }
+            }
+
         } else if (javaCodeGeneratorInfo instanceof YangLeavesHolder) {
         } else if (javaCodeGeneratorInfo instanceof YangLeavesHolder) {
             /*
             /*
              * Container
              * Container
@@ -139,13 +158,14 @@ public final class YangJavaModelUtils {
              * Union
              * Union
              */
              */
             javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
             javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
-                    .addTypeInfoToTempFiles((YangTypeHolder) javaCodeGeneratorInfo);
+                    .addTypeInfoToTempFiles((YangTypeHolder) javaCodeGeneratorInfo, yangPluginConfig);
         } else if (javaCodeGeneratorInfo instanceof YangJavaEnumeration) {
         } else if (javaCodeGeneratorInfo instanceof YangJavaEnumeration) {
             /*
             /*
              * Enumeration
              * Enumeration
              */
              */
             javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getEnumerationTempFiles()
             javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getEnumerationTempFiles()
-                    .addEnumAttributeToTempFiles((YangNode) javaCodeGeneratorInfo);
+                    .addEnumAttributeToTempFiles((YangNode) javaCodeGeneratorInfo, yangPluginConfig);
+
         } else if (javaCodeGeneratorInfo instanceof YangChoice) {
         } else if (javaCodeGeneratorInfo instanceof YangChoice) {
             /*Do nothing, only the interface needs to be generated*/
             /*Do nothing, only the interface needs to be generated*/
         } else {
         } else {
@@ -171,6 +191,32 @@ public final class YangJavaModelUtils {
     }
     }
 
 
     /**
     /**
+     * Updates notification node info in service temporary file.
+     *
+     * @param javaCodeGeneratorInfo java code generator info
+     * @param yangPluginConfig plugin configurations
+     * @throws IOException when fails to do IO operations
+     */
+    private static void updateNotificaitonNodeInfo(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+            YangPluginConfig yangPluginConfig) throws IOException {
+        if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaModule) {
+            for (YangNode notificaiton : ((YangJavaModule) javaCodeGeneratorInfo).getNotificationNodes()) {
+                javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
+                        .getServiceTempFiles()
+                        .addJavaSnippetOfEvent(notificaiton, yangPluginConfig);
+            }
+        }
+        if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaSubModule) {
+            for (YangNode notificaiton : ((YangJavaSubModule) javaCodeGeneratorInfo)
+                    .getNotificationNodes()) {
+                javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
+                        .getServiceTempFiles()
+                        .addJavaSnippetOfEvent(notificaiton, yangPluginConfig);
+            }
+        }
+    }
+
+    /**
      * Generates code for the current ata model node and adds itself as an attribute in the parent.
      * Generates code for the current ata model node and adds itself as an attribute in the parent.
      *
      *
      * @param javaCodeGeneratorInfo YANG java file info node
      * @param javaCodeGeneratorInfo YANG java file info node
@@ -193,7 +239,7 @@ public final class YangJavaModelUtils {
         /*
         /*
          * Update the current nodes info in its parent nodes generated files.
          * Update the current nodes info in its parent nodes generated files.
          */
          */
-        addCurNodeInfoInParentTempFile((YangNode) javaCodeGeneratorInfo, isMultiInstance);
+        addCurNodeInfoInParentTempFile((YangNode) javaCodeGeneratorInfo, isMultiInstance, yangPlugin);
     }
     }
 
 
     /**
     /**
@@ -234,7 +280,7 @@ public final class YangJavaModelUtils {
         if (javaCodeGeneratorInfo instanceof YangCase) {
         if (javaCodeGeneratorInfo instanceof YangCase) {
             YangNode parent = ((YangCase) javaCodeGeneratorInfo).getParent();
             YangNode parent = ((YangCase) javaCodeGeneratorInfo).getParent();
             JavaQualifiedTypeInfo parentsInfo = new JavaQualifiedTypeInfo();
             JavaQualifiedTypeInfo parentsInfo = new JavaQualifiedTypeInfo();
-            String parentName = ((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName();
+            String parentName = getCapitalCase(((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName());
             String parentPkg = ((JavaFileInfoContainer) parent).getJavaFileInfo().getPackage();
             String parentPkg = ((JavaFileInfoContainer) parent).getJavaFileInfo().getPackage();
             parentsInfo.setClassInfo(parentName);
             parentsInfo.setClassInfo(parentName);
             parentsInfo.setPkgInfo(parentPkg);
             parentsInfo.setPkgInfo(parentPkg);
@@ -242,7 +288,7 @@ public final class YangJavaModelUtils {
                     .addToExtendsList(parentsInfo, (YangNode) javaCodeGeneratorInfo);
                     .addToExtendsList(parentsInfo, (YangNode) javaCodeGeneratorInfo);
 
 
             javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getBeanTempFiles()
             javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getBeanTempFiles()
-                    .addParentInfoInCurNodeTempFile((YangNode) javaCodeGeneratorInfo);
+                    .addParentInfoInCurNodeTempFile((YangNode) javaCodeGeneratorInfo, yangPlugin);
 
 
         }
         }
     }
     }
@@ -284,7 +330,26 @@ public final class YangJavaModelUtils {
             javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_SERVICE_AND_MANAGER);
             javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_SERVICE_AND_MANAGER);
         }
         }
 
 
+        if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaModule) {
+            if (!((YangJavaModule) javaCodeGeneratorInfo)
+                    .isNotificationChildNodePresent((YangNode) javaCodeGeneratorInfo)) {
+                updateCodeGenInfoForEvent(javaCodeGeneratorInfo);
+            }
+        } else if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaSubModule) {
+            if (!((YangJavaSubModule) javaCodeGeneratorInfo)
+                    .isNotificationChildNodePresent((YangNode) javaCodeGeneratorInfo)) {
+                updateCodeGenInfoForEvent(javaCodeGeneratorInfo);
+            }
+        }
+
         generateTempFiles(javaCodeGeneratorInfo, yangPluginConfig);
         generateTempFiles(javaCodeGeneratorInfo, yangPluginConfig);
     }
     }
 
 
+    /*Updates java code generator info with events info.*/
+    private static void updateCodeGenInfoForEvent(JavaCodeGeneratorInfo javaCodeGeneratorInfo) {
+        javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_EVENT_SUBJECT_CLASS);
+        javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_EVENT_CLASS);
+        javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_EVENT_LISTENER_INTERFACE);
+    }
+
 }
 }

@@ -37,6 +37,11 @@ public final class YangToJavaNamingConflictUtil {
     private static String replacementForHyphenInIdentifier;
     private static String replacementForHyphenInIdentifier;
 
 
     /**
     /**
+     * Contains the prefix value for adding with the identifier.
+     */
+    private static String prefixForIdentifier;
+
+    /**
      * Creates an object for YANG to java naming conflict util.
      * Creates an object for YANG to java naming conflict util.
      */
      */
     public YangToJavaNamingConflictUtil() {
     public YangToJavaNamingConflictUtil() {
@@ -95,4 +100,22 @@ public final class YangToJavaNamingConflictUtil {
     public String getReplacementForUnderscore() {
     public String getReplacementForUnderscore() {
         return replacementForUnderscoreInIdentifier;
         return replacementForUnderscoreInIdentifier;
     }
     }
+
+    /**
+     * Sets the prefix value for adding with the identifier.
+     *
+     * @param prefix prefix for identifier
+     */
+    public void setPrefixForIdentifier(String prefix) {
+        prefixForIdentifier = prefix;
+    }
+
+    /**
+     * Returns the prefix for identifier.
+     *
+     * @return prefix for identifier
+     */
+    public String getPrefixForIdentifier() {
+        return prefixForIdentifier;
+    }
 }
 }

@@ -99,11 +99,11 @@ public final class RestrictionResolver {
             }
             }
 
 
             if (rangeBoundary.length == MIN_RANGE_BOUNDARY) {
             if (rangeBoundary.length == MIN_RANGE_BOUNDARY) {
-                startInterval = rangeBoundary[0];
-                endInterval = rangeBoundary[0];
+                startInterval = rangeBoundary[0].trim();
+                endInterval = rangeBoundary[0].trim();
             } else {
             } else {
-                startInterval = rangeBoundary[0];
-                endInterval = rangeBoundary[1];
+                startInterval = rangeBoundary[0].trim();
+                endInterval = rangeBoundary[1].trim();
             }
             }
 
 
             try {
             try {
@@ -186,11 +186,11 @@ public final class RestrictionResolver {
             }
             }
 
 
             if (rangeBoundary.length == MIN_RANGE_BOUNDARY) {
             if (rangeBoundary.length == MIN_RANGE_BOUNDARY) {
-                startInterval = rangeBoundary[0];
-                endInterval = rangeBoundary[0];
+                startInterval = rangeBoundary[0].trim();
+                endInterval = rangeBoundary[0].trim();
             } else {
             } else {
-                startInterval = rangeBoundary[0];
-                endInterval = rangeBoundary[1];
+                startInterval = rangeBoundary[0].trim();
+                endInterval = rangeBoundary[1].trim();
             }
             }
 
 
             try {
             try {

@@ -197,6 +197,11 @@ public final class UtilConstants {
     public static final String PARSE_BYTE = "parseByte";
     public static final String PARSE_BYTE = "parseByte";
 
 
     /**
     /**
+     * Static attribute for parse boolean.
+     */
+    public static final String PARSE_BOOLEAN = "parseBoolean";
+
+    /**
      * Static attribute for parse short.
      * Static attribute for parse short.
      */
      */
     public static final String PARSE_SHORT = "parseShort";
     public static final String PARSE_SHORT = "parseShort";
@@ -242,6 +247,11 @@ public final class UtilConstants {
     public static final String SPACE = " ";
     public static final String SPACE = " ";
 
 
     /**
     /**
+     * Static attribute for subject.
+     */
+    public static final String SUBJECT = "Subject";
+
+    /**
      * Static attribute for ListenerRegistry.
      * Static attribute for ListenerRegistry.
      */
      */
     public static final String LISTENER_REG = "ListenerRegistry";
     public static final String LISTENER_REG = "ListenerRegistry";
@@ -254,7 +264,7 @@ public final class UtilConstants {
     /**
     /**
      * Static attribute for listener package.
      * Static attribute for listener package.
      */
      */
-    public static final String LISTENER_PKG = "org.onosproject.event";
+    public static final String ONOS_EVENT_PKG = "org.onosproject.event";
 
 
     /**
     /**
      * Static attribute for colon.
      * Static attribute for colon.
@@ -272,6 +282,21 @@ public final class UtilConstants {
     public static final String INPUT = "input";
     public static final String INPUT = "input";
 
 
     /**
     /**
+     * Static attribute for leafref string.
+     */
+    public static final String LEAFREF = "leafref";
+
+    /**
+     * Static attribute for identityref string.
+     */
+    public static final String IDENTITYREF = "identityref";
+
+    /**
+     * Static attribute for instance identifier string.
+     */
+    public static final String INSTANCE_IDENTIFIER = "instance-identifier";
+
+    /**
      * Static attribute for output variable of rpc.
      * Static attribute for output variable of rpc.
      */
      */
     public static final String RPC_INPUT_VAR_NAME = "inputVar";
     public static final String RPC_INPUT_VAR_NAME = "inputVar";
@@ -742,6 +767,11 @@ public final class UtilConstants {
     public static final String REGEX_WITH_SINGLE_CAPITAL_CASE_AND_DIGITS_SMALL_CASES = "[A-Z][0-9a-z]+";
     public static final String REGEX_WITH_SINGLE_CAPITAL_CASE_AND_DIGITS_SMALL_CASES = "[A-Z][0-9a-z]+";
 
 
     /**
     /**
+     * Static attribute for regex for any string ending with service.
+     */
+    public static final String REGEX_FOR_ANY_STRING_ENDING_WITH_SERVICE = ".+Service";
+
+    /**
      * Static attribute for class syntax.
      * Static attribute for class syntax.
      */
      */
     public static final String CLASS = "class";
     public static final String CLASS = "class";
@@ -772,6 +802,11 @@ public final class UtilConstants {
     public static final String ENUM = "enum";
     public static final String ENUM = "enum";
 
 
     /**
     /**
+     * Static attribute for type syntax.
+     */
+    public static final String TYPE = "Type";
+
+    /**
      * Static attribute for static syntax.
      * Static attribute for static syntax.
      */
      */
     public static final String STATIC = "static";
     public static final String STATIC = "static";
@@ -837,6 +872,11 @@ public final class UtilConstants {
     public static final String EVENT_LISTENER_STRING = "Listener";
     public static final String EVENT_LISTENER_STRING = "Listener";
 
 
     /**
     /**
+     * For event subject file generation.
+     */
+    public static final String EVENT_SUBJECT_NAME_SUFFIX = "EventSubject";
+
+    /**
      * Static attribute for impl syntax.
      * Static attribute for impl syntax.
      */
      */
     public static final String IMPL = "Impl";
     public static final String IMPL = "Impl";
@@ -942,6 +982,130 @@ public final class UtilConstants {
     public static final String YANG_UTILS_TODO = "//TODO: YANG utils generated code";
     public static final String YANG_UTILS_TODO = "//TODO: YANG utils generated code";
 
 
     /**
     /**
+     * Static attribute for activate annotation.
+     */
+    public static final String ACTIVATE_ANNOTATION = "@Activate\n";
+
+    /**
+     * Static attribute for activate.
+     */
+    public static final String ACTIVATE = "activate";
+
+    /**
+     * Static attribute for activate annotation import.
+     */
+    public static final String ACTIVATE_ANNOTATION_IMPORT = "import org.apache.felix.scr.annotations.Activate;\n";
+
+    /**
+     * Static attribute for deactivate annotation.
+     */
+    public static final String DEACTIVATE_ANNOTATION = "@Deactivate\n";
+
+    /**
+     * Static attribute for deactivate.
+     */
+    public static final String DEACTIVATE = "deactivate";
+
+    /**
+     * Static attribute for deactivate annotation import.
+     */
+    public static final String DEACTIVATE_ANNOTATION_IMPORT =
+            "import org.apache.felix.scr.annotations.Deactivate;\n";
+
+    /**
+     * Static attribute for component annotation.
+     */
+    public static final String COMPONENT_ANNOTATION = "@Component";
+
+    /**
+     * Static attribute for immediate.
+     */
+    public static final String IMMEDIATE = "immediate";
+
+    /**
+     * Static attribute for component annotation import.
+     */
+    public static final String COMPONENT_ANNOTATION_IMPORT =
+            "import org.apache.felix.scr.annotations.Component;\n";
+
+    /**
+     * Static attribute for service annotation.
+     */
+    public static final String SERVICE_ANNOTATION = "@Service\n";
+
+    /**
+     * Static attribute for service annotation import.
+     */
+    public static final String SERVICE_ANNOTATION_IMPORT =
+            "import org.apache.felix.scr.annotations.Service;\n";
+
+    /**
+     * Static attribute for logger factory import.
+     */
+    public static final String LOGGER_FACTORY_IMPORT =
+            "import static org.slf4j.LoggerFactory.getLogger;\n";
+
+    /**
+     * Static attribute for logger import.
+     */
+    public static final String LOGGER_IMPORT =
+            "import org.slf4j.Logger;\n";
+
+    /**
+     * Static attribute for logger statement.
+     */
+    public static final String LOGGER_STATEMENT =
+            "\n    private final Logger log = getLogger(getClass());\n";
+
+    /**
+     * Static attribute for logger statement for started.
+     */
+    public static final String STARTED_LOG_INFO =
+            "log.info(\"Started\");\n";
+
+    /**
+     * Static attribute for logger statement for stopped.
+     */
+    public static final String STOPPED_LOG_INFO =
+            "log.info(\"Stopped\");\n";
+
+    /**
+     * Static attribute for AbstractEvent.
+     */
+    public static final String ABSTRACT_EVENT = "AbstractEvent";
+
+    /**
+     * Static attribute for EventListener.
+     */
+    public static final String EVENT_LISTENER = "EventListener";
+
+    /**
+     * Static attribute for YangBinary class.
+     */
+    public static final String YANG_BINARY_CLASS = "YangBinary";
+
+    /**
+     * Static attribute for YangBinary class.
+     */
+    public static final String YANG_BITS_CLASS = "YangBits";
+
+    /**
+     * Static attribute for YANG types package.
+     */
+    public static final String YANG_TYPES_PKG = "org.onosproject.yangutils.utils.builtindatatype";
+
+    /**
+     * Static attribute for MathContext class.
+     */
+    public static final String MATH_CONTEXT = "MathContext";
+
+    /**
+     * Static attribute for DECIMAL64 class.
+     */
+    public static final String YANG_DECIMAL64_CLASS = "YangDecimal64";
+
+
+    /**
      * Static attribute for YANG file error.
      * Static attribute for YANG file error.
      */
      */
     public static final String YANG_FILE_ERROR = "YANG file error : ";
     public static final String YANG_FILE_ERROR = "YANG file error : ";
@@ -958,6 +1122,18 @@ public final class UtilConstants {
             " for YANG utils road map.";
             " for YANG utils road map.";
 
 
     /**
     /**
+     * Static attribute for typedef linker error information.
+     */
+    public static final String TYPEDEF_LINKER_ERROR = "YANG file error: Unable to find base "
+            + "typedef for given type";
+
+    /**
+     * Static attribute for grouping linker error information.
+     */
+    public static final String GROUPING_LINKER_ERROR = "YANG file error: Unable to find base "
+            + "grouping for given uses";
+
+    /**
      * Creates an instance of util constants.
      * Creates an instance of util constants.
      */
      */
     private UtilConstants() {
     private UtilConstants() {

@@ -350,6 +350,21 @@ public enum YangConstructType {
     REFINE_DATA,
     REFINE_DATA,
 
 
     /**
     /**
+     * Identifies the YANG leafref element parsed data.
+     */
+    LEAFREF_DATA,
+
+    /**
+     * Identifies the YANG identityref element parsed data.
+     */
+    IDENTITYREF_DATA,
+
+    /**
+     * Identifies the YANG instance identifier element parsed data.
+     */
+    INSTANCE_IDENTIFIER_DATA,
+
+    /**
      * Identifies the YANG deviation element parsed data.
      * Identifies the YANG deviation element parsed data.
      */
      */
     DEVIATION_DATA,
     DEVIATION_DATA,
@@ -500,6 +515,12 @@ public enum YangConstructType {
                 return "unique";
                 return "unique";
             case REFINE_DATA:
             case REFINE_DATA:
                 return "refine";
                 return "refine";
+            case LEAFREF_DATA:
+                return "leafref";
+            case IDENTITYREF_DATA:
+                return "identityref";
+            case INSTANCE_IDENTIFIER_DATA:
+                return "instance-identifier";
             case DEVIATION_DATA:
             case DEVIATION_DATA:
                 return "deviation";
                 return "deviation";
             case ANYXML_DATA:
             case ANYXML_DATA:

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.utils.builtindatatype;
+
+import java.util.Objects;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Represents binary data type.
+ */
+public final class YangBinary {
+
+    private byte[] byteArray;
+
+    /**
+     * Creates an instance of YANG binary.
+     */
+    private YangBinary() {
+    }
+
+    /**
+     * Creates an instance of YANG binary.
+     *
+     * @param bytes byte array
+     */
+    public YangBinary(byte[] bytes) {
+        this.byteArray = bytes;
+    }
+
+    /**
+     * Returns object of YANG binary.
+     *
+     * @param bytes byte array
+     * @return object of YANG binary
+     */
+    public static YangBinary of(byte[] bytes) {
+        return new YangBinary(bytes);
+    }
+
+    /**
+     * Returns byte array.
+     *
+     * @return byte array
+     */
+    public byte[] byteArray() {
+        return byteArray;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(byteArray);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof YangBinary) {
+            YangBinary other = (YangBinary) obj;
+            return Objects.equals(byteArray, other.byteArray);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .omitNullValues()
+                .add("byteArray", byteArray)
+                .toString();
+    }
+
+    /**
+     * Returns the object of YANG binary fromString input String.
+     *
+     * @param valInString input String
+     * @return Object of YANG binary
+     */
+    public static YangBinary fromString(String valInString) {
+        try {
+            byte[] tmpVal = valInString.getBytes();
+            return of(tmpVal);
+        } catch (Exception e) {
+        }
+        return null;
+    }
+
+}

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.utils.builtindatatype;
+
+import java.util.Objects;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Represents bits data type.
+ */
+public class YangBits {
+
+    private byte[] byteArray;
+
+    /**
+     * Creates an instance of YANG bits.
+     */
+    private YangBits() {
+    }
+
+    /**
+     * Creates an instance of YANG bits.
+     *
+     * @param bytes byte array
+     */
+    public YangBits(byte[] bytes) {
+        this.byteArray = bytes;
+    }
+
+    /**
+     * Returns object of YANG bits.
+     *
+     * @param bytes byte array
+     * @return object of YANG bits
+     */
+    public static YangBits of(byte[] bytes) {
+        return new YangBits(bytes);
+    }
+
+    /**
+     * Returns byte array.
+     *
+     * @return byte array
+     */
+    public byte[] byteArray() {
+        return byteArray;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(byteArray);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof YangBits) {
+            YangBits other = (YangBits) obj;
+            return Objects.equals(byteArray, other.byteArray);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .omitNullValues()
+                .add("byteArray", byteArray)
+                .toString();
+    }
+
+    /**
+     * Returns the object of YANG bits fromString input String.
+     *
+     * @param valInString input String
+     * @return Object of YANG bits
+     */
+    public static YangBits fromString(String valInString) {
+        try {
+            byte[] tmpVal = valInString.getBytes();
+            return of(tmpVal);
+        } catch (Exception e) {
+        }
+        return null;
+    }
+
+}

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.utils.builtindatatype;
+
+import java.util.Objects;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Represents YANG decimal 64.
+ */
+public class YangDecimal64 {
+
+    private int fractionDigit;
+
+    /**
+     * Creates an instance of YANG decimal64.
+     */
+    public YangDecimal64() {
+    }
+
+    /**
+     * Creates an instance of of YANG decimal64.
+     *
+     * @param fractionDigit fraction digit
+     */
+    public YangDecimal64(int fractionDigit) {
+        this.setFractionDigit(fractionDigit);
+    }
+
+    /**
+     * Returns fraction digit.
+     *
+     * @return the fractionDigit
+     */
+    public int getFractionDigit() {
+        return fractionDigit;
+    }
+
+    /**
+     * Sets fraction digit.
+     *
+     * @param fractionDigit fraction digits.
+     */
+    public void setFractionDigit(int fractionDigit) {
+        this.fractionDigit = fractionDigit;
+    }
+
+    /**
+     * Returns object of YANG decimal64.
+     *
+     * @param value fraction digit
+     * @return YANG decimal64
+     */
+    public static YangDecimal64 of(int value) {
+        return new YangDecimal64(value);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(fractionDigit);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof YangDecimal64) {
+            YangDecimal64 other = (YangDecimal64) obj;
+            return Objects.equals(fractionDigit, other.fractionDigit);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .omitNullValues()
+                .add("fractionDigit", fractionDigit)
+                .toString();
+    }
+
+    /**
+     * Returns the object of YANG decimal64 fromString input String.
+     *
+     * @param valInString input String
+     * @return Object of YANG decimal64
+     */
+    public static YangDecimal64 fromString(String valInString) {
+        try {
+            int tmpVal = Integer.parseInt(valInString);
+            return of(tmpVal);
+        } catch (Exception e) {
+        }
+        return null;
+    }
+}

@@ -22,6 +22,8 @@ import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.List;
 
 
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
@@ -84,10 +86,12 @@ public final class FileSystemUtil {
                 YangNode parent = getParentNodeInGenCode(yangNode);
                 YangNode parent = getParentNodeInGenCode(yangNode);
                 if (parent != null) {
                 if (parent != null) {
                     pkgInfo = ((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName();
                     pkgInfo = ((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName();
-                    addPackageInfo(pack, pkgInfo, getJavaPackageFromPackagePath(pkg), true);
+                    addPackageInfo(pack, pkgInfo, getJavaPackageFromPackagePath(pkg), true,
+                            ((JavaFileInfoContainer) parent).getJavaFileInfo().getPluginConfig());
                 } else {
                 } else {
                     pkgInfo = ((JavaFileInfoContainer) yangNode).getJavaFileInfo().getJavaName();
                     pkgInfo = ((JavaFileInfoContainer) yangNode).getJavaFileInfo().getJavaName();
-                    addPackageInfo(pack, pkgInfo, getJavaPackageFromPackagePath(pkg), false);
+                    addPackageInfo(pack, pkgInfo, getJavaPackageFromPackagePath(pkg), false,
+                            ((JavaFileInfoContainer) yangNode).getJavaFileInfo().getPluginConfig());
                 }
                 }
             } catch (IOException e) {
             } catch (IOException e) {
                 throw new IOException("failed to create package-info file");
                 throw new IOException("failed to create package-info file");
@@ -120,6 +124,7 @@ public final class FileSystemUtil {
      */
      */
     public static String readAppendFile(String toAppend, String spaces)
     public static String readAppendFile(String toAppend, String spaces)
             throws IOException {
             throws IOException {
+
         FileReader fileReader = new FileReader(toAppend);
         FileReader fileReader = new FileReader(toAppend);
         BufferedReader bufferReader = new BufferedReader(fileReader);
         BufferedReader bufferReader = new BufferedReader(fileReader);
         try {
         try {
@@ -156,15 +161,22 @@ public final class FileSystemUtil {
      */
      */
     public static void updateFileHandle(File inputFile, String contentTobeAdded, boolean isClose)
     public static void updateFileHandle(File inputFile, String contentTobeAdded, boolean isClose)
             throws IOException {
             throws IOException {
+
+        List<FileWriter> fileWriterStore = new ArrayList<>();
+
         FileWriter fileWriter = new FileWriter(inputFile, true);
         FileWriter fileWriter = new FileWriter(inputFile, true);
+        fileWriterStore.add(fileWriter);
         PrintWriter outputPrintWriter = new PrintWriter(fileWriter, true);
         PrintWriter outputPrintWriter = new PrintWriter(fileWriter, true);
         if (!isClose) {
         if (!isClose) {
             outputPrintWriter.write(contentTobeAdded);
             outputPrintWriter.write(contentTobeAdded);
             outputPrintWriter.flush();
             outputPrintWriter.flush();
             outputPrintWriter.close();
             outputPrintWriter.close();
         } else {
         } else {
-            fileWriter.flush();
-            fileWriter.close();
+            for (FileWriter curWriter : fileWriterStore) {
+                curWriter.flush();
+                curWriter.close();
+                curWriter = null;
+            }
         }
         }
     }
     }
 }
 }

@@ -17,12 +17,14 @@
 package org.onosproject.yangutils.utils.io.impl;
 package org.onosproject.yangutils.utils.io.impl;
 
 
 import org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax;
 import org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER_CLASS_JAVA_DOC;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER_CLASS_JAVA_DOC;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER_INTERFACE_JAVA_DOC;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER_INTERFACE_JAVA_DOC;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER_OBJECT;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER_OBJECT;
+import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.ENUM_ATTRIBUTE_JAVADOC;
 import static org.onosproject.yangutils.utils.UtilConstants.ENUM_ATTRIBUTE_JAVADOC;
 import static org.onosproject.yangutils.utils.UtilConstants.ENUM_CLASS_JAVADOC;
 import static org.onosproject.yangutils.utils.UtilConstants.ENUM_CLASS_JAVADOC;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_JAVA_DOC;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_JAVA_DOC;
@@ -181,7 +183,12 @@ public final class JavaDocGen {
         /**
         /**
          * For manager setters.
          * For manager setters.
          */
          */
-        MANAGER_SETTER_METHOD
+        MANAGER_SETTER_METHOD,
+
+        /**
+         * For event subject.
+         */
+        EVENT_SUBJECT_CLASS
     }
     }
 
 
     /**
     /**
@@ -190,14 +197,15 @@ public final class JavaDocGen {
      * @param type java doc type
      * @param type java doc type
      * @param name name of the YangNode
      * @param name name of the YangNode
      * @param isList is list attribute
      * @param isList is list attribute
+     * @param pluginConfig plugin configurations
      * @return javadocs.
      * @return javadocs.
      */
      */
-    public static String getJavaDoc(JavaDocType type, String name, boolean isList) {
+    public static String getJavaDoc(JavaDocType type, String name, boolean isList, YangPluginConfig pluginConfig) {
 
 
-        name = JavaIdentifierSyntax.getSmallCase(getCamelCase(name, null));
+        name = JavaIdentifierSyntax.getSmallCase(getCamelCase(name, pluginConfig.getConflictResolver()));
         switch (type) {
         switch (type) {
             case IMPL_CLASS: {
             case IMPL_CLASS: {
-                return generateForImplClass(name);
+                return generateForClass(name);
             }
             }
             case BUILDER_CLASS: {
             case BUILDER_CLASS: {
                 return generateForBuilderClass(name);
                 return generateForBuilderClass(name);
@@ -248,7 +256,7 @@ public final class JavaDocGen {
                return generateForRpcService(name);
                return generateForRpcService(name);
             }
             }
             case RPC_MANAGER: {
             case RPC_MANAGER: {
-               return generateForImplClass(name);
+               return generateForClass(name);
             }
             }
             case EVENT: {
             case EVENT: {
                 return generateForEvent(name);
                 return generateForEvent(name);
@@ -256,6 +264,9 @@ public final class JavaDocGen {
             case EVENT_LISTENER: {
             case EVENT_LISTENER: {
                 return generateForEventListener(name);
                 return generateForEventListener(name);
             }
             }
+            case EVENT_SUBJECT_CLASS: {
+                return generateForClass(name);
+            }
             default: {
             default: {
                 return generateForConstructors(name);
                 return generateForConstructors(name);
             }
             }
@@ -279,14 +290,19 @@ public final class JavaDocGen {
      * @param rpcName name of the rpc
      * @param rpcName name of the rpc
      * @param inputName name of input
      * @param inputName name of input
      * @param outputName name of output
      * @param outputName name of output
+     * @param pluginConfig plugin configurations
      * @return javaDocs of rpc method
      * @return javaDocs of rpc method
      */
      */
-    public static String generateJavaDocForRpc(String rpcName, String inputName, String outputName) {
-        rpcName = getCamelCase(rpcName, null);
+    public static String generateJavaDocForRpc(String rpcName, String inputName, String outputName,
+            YangPluginConfig pluginConfig) {
+        rpcName = getCamelCase(rpcName, pluginConfig.getConflictResolver());
 
 
-        String javadoc = NEW_LINE + FOUR_SPACE_INDENTATION + JAVA_DOC_FIRST_LINE + FOUR_SPACE_INDENTATION + JAVA_DOC_RPC
-                + rpcName + PERIOD + NEW_LINE + FOUR_SPACE_INDENTATION + NEW_LINE_ASTERISK
-                + getInputString(inputName, rpcName);
+        String javadoc =
+                NEW_LINE + FOUR_SPACE_INDENTATION + JAVA_DOC_FIRST_LINE + FOUR_SPACE_INDENTATION + JAVA_DOC_RPC
+                        + rpcName + PERIOD + NEW_LINE + FOUR_SPACE_INDENTATION + NEW_LINE_ASTERISK;
+        if (!inputName.equals(EMPTY_STRING)) {
+            javadoc = javadoc + getInputString(inputName, rpcName);
+        }
         if (!outputName.equals(VOID)) {
         if (!outputName.equals(VOID)) {
             javadoc = javadoc + getOutputString(outputName, rpcName);
             javadoc = javadoc + getOutputString(outputName, rpcName);
         }
         }
@@ -393,7 +409,8 @@ public final class JavaDocGen {
         } else {
         } else {
             setter = setter + VALUE + SPACE + OF + SPACE;
             setter = setter + VALUE + SPACE + OF + SPACE;
         }
         }
-        setter = setter + attribute + NEW_LINE + FOUR_SPACE_INDENTATION + JAVA_DOC_RETURN + BUILDER_OBJECT + attribute
+        setter = setter + attribute + NEW_LINE + FOUR_SPACE_INDENTATION + JAVA_DOC_RETURN + BUILDER_OBJECT
+                + attribute
                 + NEW_LINE + FOUR_SPACE_INDENTATION + JAVA_DOC_END_LINE;
                 + NEW_LINE + FOUR_SPACE_INDENTATION + JAVA_DOC_END_LINE;
         return setter;
         return setter;
     }
     }
@@ -470,7 +487,7 @@ public final class JavaDocGen {
      * @param className class name
      * @param className class name
      * @return javaDocs
      * @return javaDocs
      */
      */
-    private static String generateForImplClass(String className) {
+    private static String generateForClass(String className) {
         return NEW_LINE + JAVA_DOC_FIRST_LINE + IMPL_CLASS_JAVA_DOC + className + PERIOD + NEW_LINE + JAVA_DOC_END_LINE;
         return NEW_LINE + JAVA_DOC_FIRST_LINE + IMPL_CLASS_JAVA_DOC + className + PERIOD + NEW_LINE + JAVA_DOC_END_LINE;
     }
     }
 
 

@@ -60,8 +60,8 @@ public final class YangFileScanner {
      *                              operations
      *                              operations
      */
      */
     public static List<String> getYangFiles(String root) throws IOException {
     public static List<String> getYangFiles(String root) throws IOException {
-        List<String> yangFiles = getFiles(root, YANG_FILE_EXTENTION);
-        return yangFiles;
+
+        return getFiles(root, YANG_FILE_EXTENTION);
     }
     }
 
 
     /**
     /**

@@ -16,32 +16,38 @@
 
 
 package org.onosproject.yangutils.utils.io.impl;
 package org.onosproject.yangutils.utils.io.impl;
 
 
+import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.BufferedWriter;
 import java.io.File;
 import java.io.File;
+import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Files;
 import java.nio.file.StandardCopyOption;
 import java.nio.file.StandardCopyOption;
 import java.util.ArrayList;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.Iterator;
-import java.util.List;
 import java.util.LinkedList;
 import java.util.LinkedList;
-import java.util.Stack;
+import java.util.List;
 import java.util.Set;
 import java.util.Set;
+import java.util.Stack;
+import java.util.regex.Pattern;
 
 
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.FileUtils;
 import org.apache.maven.model.Resource;
 import org.apache.maven.model.Resource;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.MavenProject;
 import org.onosproject.yangutils.plugin.manager.YangFileInfo;
 import org.onosproject.yangutils.plugin.manager.YangFileInfo;
-
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.slf4j.Logger;
 import org.slf4j.Logger;
 import org.sonatype.plexus.build.incremental.BuildContext;
 import org.sonatype.plexus.build.incremental.BuildContext;
 
 
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.HASH;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
+import static org.onosproject.yangutils.utils.UtilConstants.OPEN_PARENTHESIS;
 import static org.onosproject.yangutils.utils.UtilConstants.ORG;
 import static org.onosproject.yangutils.utils.UtilConstants.ORG;
 import static org.onosproject.yangutils.utils.UtilConstants.PACKAGE;
 import static org.onosproject.yangutils.utils.UtilConstants.PACKAGE;
+import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.SLASH;
 import static org.onosproject.yangutils.utils.UtilConstants.SLASH;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
@@ -61,6 +67,9 @@ public final class YangIoUtils {
 
 
     private static final Logger log = getLogger(YangIoUtils.class);
     private static final Logger log = getLogger(YangIoUtils.class);
     private static final String TARGET_RESOURCE_PATH = SLASH + TEMP + SLASH + YANG_RESOURCES + SLASH;
     private static final String TARGET_RESOURCE_PATH = SLASH + TEMP + SLASH + YANG_RESOURCES + SLASH;
+    private static final int LINE_SIZE = 116;
+    private static final int SUB_LINE_SIZE = 112;
+    private static final int ZERO = 0;
 
 
     /**
     /**
      * Creates an instance of YANG io utils.
      * Creates an instance of YANG io utils.
@@ -87,15 +96,15 @@ public final class YangIoUtils {
      * @param classInfo class info for the package
      * @param classInfo class info for the package
      * @param pack package of the directory
      * @param pack package of the directory
      * @param isChildNode is it a child node
      * @param isChildNode is it a child node
+     * @param pluginConfig plugin configurations
      * @throws IOException when fails to create package info file
      * @throws IOException when fails to create package info file
      */
      */
-    public static void addPackageInfo(File path, String classInfo, String pack, boolean isChildNode)
+    public static void addPackageInfo(File path, String classInfo, String pack, boolean isChildNode,
+            YangPluginConfig pluginConfig)
             throws IOException {
             throws IOException {
 
 
-        if (pack.contains(ORG)) {
-            String[] strArray = pack.split(ORG);
-            pack = ORG + strArray[1];
-        }
+        pack = parsePkg(pack);
+
         try {
         try {
 
 
             File packageInfo = new File(path + SLASH + "package-info.java");
             File packageInfo = new File(path + SLASH + "package-info.java");
@@ -105,9 +114,12 @@ public final class YangIoUtils {
             BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
             BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
 
 
             bufferedWriter.write(CopyrightHeader.getCopyrightHeader());
             bufferedWriter.write(CopyrightHeader.getCopyrightHeader());
-            bufferedWriter.write(getJavaDoc(PACKAGE_INFO, classInfo, isChildNode));
-            bufferedWriter.write(PACKAGE + SPACE + pack + SEMI_COLAN);
-
+            bufferedWriter.write(getJavaDoc(PACKAGE_INFO, classInfo, isChildNode, pluginConfig));
+            String pkg = PACKAGE + SPACE + pack + SEMI_COLAN;
+            if (pkg.length() > LINE_SIZE) {
+                pkg = whenDelimiterIsPersent(pkg, LINE_SIZE);
+            }
+            bufferedWriter.write(pkg);
             bufferedWriter.close();
             bufferedWriter.close();
             fileWriter.close();
             fileWriter.close();
         } catch (IOException e) {
         } catch (IOException e) {
@@ -116,6 +128,32 @@ public final class YangIoUtils {
     }
     }
 
 
     /**
     /**
+     * Parses package and returns updated package.
+     *
+     * @param pack package needs to be updated
+     * @return updated package
+     */
+    public static String parsePkg(String pack) {
+
+        if (pack.contains(ORG)) {
+            String[] strArray = pack.split(ORG);
+            if (strArray.length >= 3) {
+                for (int i = 1; i < strArray.length; i++) {
+                    if (i == 1) {
+                        pack = ORG + strArray[1];
+                    } else {
+                        pack = pack + ORG + strArray[i];
+                    }
+                }
+            } else {
+                pack = ORG + strArray[1];
+            }
+        }
+
+        return pack;
+    }
+
+    /**
      * Cleans the generated directory if already exist in source folder.
      * Cleans the generated directory if already exist in source folder.
      *
      *
      * @param dir generated directory in previous build
      * @param dir generated directory in previous build
@@ -249,7 +287,7 @@ public final class YangIoUtils {
     /**
     /**
      * Copies YANG files to the current project's output directory.
      * Copies YANG files to the current project's output directory.
      *
      *
-     * @param yangFileInfo set of YANG files
+     * @param yangFileInfo list of YANG files
      * @param outputDir project's output directory
      * @param outputDir project's output directory
      * @param project maven project
      * @param project maven project
      * @throws IOException when fails to copy files to destination resource directory
      * @throws IOException when fails to copy files to destination resource directory
@@ -318,4 +356,126 @@ public final class YangIoUtils {
             throw new IOException("Failed to insert in " + file + "file");
             throw new IOException("Failed to insert in " + file + "file");
         }
         }
     }
     }
+
+    /**
+     * Validates a line size in given file whether it is having more then 120 characters.
+     * If yes it will update and give a new file.
+     *
+     * @param dataFile file in which need to verify all lines.
+     * @return updated file
+     * @throws IOException when fails to do IO operations.
+     */
+    public static File validateLineLength(File dataFile) throws IOException {
+        File tempFile = dataFile;
+        FileReader fileReader = new FileReader(dataFile);
+        BufferedReader bufferReader = new BufferedReader(fileReader);
+        try {
+            StringBuilder stringBuilder = new StringBuilder();
+            String line = bufferReader.readLine();
+
+            while (line != null) {
+                if (line.length() > LINE_SIZE) {
+                    if (line.contains(PERIOD)) {
+                        line = whenDelimiterIsPersent(line, LINE_SIZE);
+                    } else if (line.contains(SPACE)) {
+                        line = whenSpaceIsPresent(line, LINE_SIZE);
+                    }
+                    stringBuilder.append(line);
+                } else {
+                    stringBuilder.append(line + NEW_LINE);
+                }
+                line = bufferReader.readLine();
+            }
+            FileWriter writer = new FileWriter(tempFile);
+            writer.write(stringBuilder.toString());
+            writer.close();
+            return tempFile;
+        } finally {
+            fileReader.close();
+            bufferReader.close();
+        }
+    }
+
+    /*When delimiters are present in the given line.*/
+    private static String whenDelimiterIsPersent(String line, int lineSize) {
+        StringBuilder stringBuilder = new StringBuilder();
+
+        if (line.length() > lineSize) {
+            String[] strArray = line.split(Pattern.quote(PERIOD));
+            stringBuilder = updateString(strArray, stringBuilder, PERIOD, lineSize);
+        } else {
+            stringBuilder.append(line + NEW_LINE);
+        }
+        String[] strArray = stringBuilder.toString().split(NEW_LINE);
+        StringBuilder tempBuilder = new StringBuilder();
+        for (String str : strArray) {
+            if (str.length() > SUB_LINE_SIZE) {
+                if (line.contains(PERIOD) && !line.contains(PERIOD + HASH + OPEN_PARENTHESIS)) {
+                    String[] strArr = str.split(Pattern.quote(PERIOD));
+                    tempBuilder = updateString(strArr, tempBuilder, PERIOD, SUB_LINE_SIZE);
+                } else if (str.contains(SPACE)) {
+                    tempBuilder.append(whenSpaceIsPresent(str, SUB_LINE_SIZE));
+                }
+            } else {
+                tempBuilder.append(str + NEW_LINE);
+            }
+        }
+        return tempBuilder.toString();
+
+    }
+
+    /*When spaces are present in the given line.*/
+    private static String whenSpaceIsPresent(String line, int lineSize) {
+        StringBuilder stringBuilder = new StringBuilder();
+        if (line.length() > lineSize) {
+            String[] strArray = line.split(SPACE);
+            stringBuilder = updateString(strArray, stringBuilder, SPACE, lineSize);
+        } else {
+            stringBuilder.append(line + NEW_LINE);
+        }
+
+        String[] strArray = stringBuilder.toString().split(NEW_LINE);
+        StringBuilder tempBuilder = new StringBuilder();
+        for (String str : strArray) {
+            if (str.length() > SUB_LINE_SIZE) {
+                if (str.contains(SPACE)) {
+                    String[] strArr = str.split(SPACE);
+                    tempBuilder = updateString(strArr, tempBuilder, SPACE, SUB_LINE_SIZE);
+                }
+            } else {
+                tempBuilder.append(str + NEW_LINE);
+            }
+        }
+        return tempBuilder.toString();
+    }
+
+    /*Updates the given line with the given size conditions.*/
+    private static StringBuilder updateString(String[] strArray, StringBuilder stringBuilder, String string,
+            int lineSize) {
+
+        StringBuilder tempBuilder = new StringBuilder();
+        for (String str : strArray) {
+            tempBuilder.append(str + string);
+            if (tempBuilder.length() > lineSize) {
+                String tempString = stringBuilder.toString();
+                stringBuilder.delete(ZERO, stringBuilder.length());
+                tempString = trimAtLast(tempString, string);
+                stringBuilder.append(tempString);
+                if (string.equals(PERIOD)) {
+                    stringBuilder.append(NEW_LINE + TWELVE_SPACE_INDENTATION + PERIOD + str + string);
+                } else {
+                    stringBuilder.append(NEW_LINE + TWELVE_SPACE_INDENTATION + str + string);
+                }
+                tempBuilder.delete(ZERO, tempBuilder.length());
+                tempBuilder.append(TWELVE_SPACE_INDENTATION);
+            } else {
+                stringBuilder.append(str + string);
+            }
+        }
+        String tempString = stringBuilder.toString();
+        tempString = trimAtLast(tempString, string);
+        stringBuilder.delete(ZERO, stringBuilder.length());
+        stringBuilder.append(tempString + NEW_LINE);
+        return stringBuilder;
+    }
 }
 }

@@ -25,8 +25,8 @@ import YangLexer;
 package org.onosproject.yangutils.parser.antlrgencode;
 package org.onosproject.yangutils.parser.antlrgencode;
 }
 }
 
 
-    yangfile : moduleStatement
-             | subModuleStatement;
+    yangfile : moduleStatement EOF
+             | subModuleStatement EOF;
 
 
     /**
     /**
      * module-stmt         = optsep module-keyword sep identifier-arg-str
      * module-stmt         = optsep module-keyword sep identifier-arg-str

@@ -564,7 +564,7 @@ public class IntraFileUsesLinkingTest {
 
 
         thrown.expect(ParserException.class);
         thrown.expect(ParserException.class);
         thrown.expectMessage(
         thrown.expectMessage(
-                "YANG file error: Unable to find base typedef/grouping for given type/uses");
+                "YANG file error: Unable to find base grouping for given uses");
 
 
         YangNode node = manager
         YangNode node = manager
                 .getDataModel("src/test/resources/SelfResolutionNestedGroupingWithUnresolvedUses.yang");
                 .getDataModel("src/test/resources/SelfResolutionNestedGroupingWithUnresolvedUses.yang");

@@ -52,4 +52,34 @@ public class TreeWalkListenerTest {
         thrown.expectMessage("YANG file error : \"anyxml\" is not supported.");
         thrown.expectMessage("YANG file error : \"anyxml\" is not supported.");
         manager.getDataModel("src/test/resources/AnyxmlStatement.yang");
         manager.getDataModel("src/test/resources/AnyxmlStatement.yang");
     }
     }
+
+    /**
+     * Checks whether exception is thrown when extra brace is added in the EOF.
+     */
+    @Test
+    public void processFileWithExtraBrace() throws IOException, ParserException {
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("mismatched input '}' expecting <EOF>");
+        manager.getDataModel("src/test/resources/ProcessFileWithExtraBrace.yang");
+    }
+
+    /**
+     * Checks whether exception is thrown when leaf is given after module ends.
+     */
+    @Test
+    public void processFileWithExtraLeaf() throws IOException, ParserException {
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("mismatched input 'leaf' expecting <EOF>");
+        manager.getDataModel("src/test/resources/ProcessFileWithExtraLeaf.yang");
+    }
+
+    /**
+     * Checks whether exception is thrown when extra brace is added in between the EOF.
+     */
+    @Test
+    public void processFileWithExtraBraceInBetween() throws IOException, ParserException {
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("mismatched input 'container' expecting <EOF>");
+        manager.getDataModel("src/test/resources/ProcessFileWithExtraBraceInBetween.yang");
+    }
 }
 }

@@ -26,10 +26,14 @@ import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangModule;
 import org.onosproject.yangutils.datamodel.YangModule;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNodeType;
 import org.onosproject.yangutils.datamodel.YangNodeType;
+import org.onosproject.yangutils.datamodel.YangType;
+import org.onosproject.yangutils.datamodel.YangTypeDef;
+import org.onosproject.yangutils.datamodel.YangUnion;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
 import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
 
 
 import java.io.IOException;
 import java.io.IOException;
+import java.util.List;
 import java.util.ListIterator;
 import java.util.ListIterator;
 import java.util.Set;
 import java.util.Set;
 
 
@@ -80,6 +84,84 @@ public class BitListenerTest {
     }
     }
 
 
     /**
     /**
+     * Checks bit statement with typedef.
+     */
+    @Test
+    public void processBitTypedefStatement() throws IOException, ParserException {
+
+        YangNode node = manager.getDataModel("src/test/resources/BitTypedefStatement.yang");
+
+        // Check whether the data model tree returned is of type module.
+        assertThat((node instanceof YangModule), is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) node;
+        assertThat(yangNode.getName(), is("Test"));
+
+        YangTypeDef typedef = (YangTypeDef) yangNode.getChild();
+        assertThat(typedef.getName(), is("type15"));
+
+        YangType type = typedef.getTypeList().iterator().next();
+        assertThat(type.getDataType(), is(YangDataTypes.BITS));
+        assertThat(type.getDataTypeName(), is("bits"));
+        Set<YangBit> bitSet = ((YangBits) type.getDataTypeExtendedInfo()).getBitSet();
+        for (YangBit tmp : bitSet) {
+            if (tmp.getBitName().equals("disable-nagle")) {
+                assertThat(tmp.getPosition(), is(0));
+            } else if (tmp.getBitName().equals("auto-sense-speed")) {
+                assertThat(tmp.getPosition(), is(1));
+            }
+        }
+    }
+
+    /**
+     * Checks bit statement with union.
+     */
+    @Test
+    public void processBitUnionStatement() throws IOException, ParserException {
+
+        YangNode node = manager.getDataModel("src/test/resources/BitUnionStatement.yang");
+
+        // Check whether the data model tree returned is of type module.
+        assertThat((node instanceof YangModule), is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) node;
+        assertThat(yangNode.getName(), is("Test"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("type15"));
+
+        assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.UNION));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("union"));
+
+        YangUnion yangUnion = (YangUnion) leafInfo.getDataType().getDataTypeExtendedInfo();
+
+        List<YangType<?>> typeList = yangUnion.getTypeList();
+        ListIterator<YangType<?>> typeListIterator = typeList.listIterator();
+        YangType<?> yangType = typeListIterator.next();
+
+        assertThat(yangType.getDataType(), is(YangDataTypes.BITS));
+        assertThat(yangType.getDataTypeName(), is("bits"));
+        Set<YangBit> bitSet = ((YangBits) yangType.getDataTypeExtendedInfo()).getBitSet();
+        for (YangBit tmp : bitSet) {
+            if (tmp.getBitName().equals("disable-nagle")) {
+                assertThat(tmp.getPosition(), is(0));
+            } else if (tmp.getBitName().equals("auto-sense-speed")) {
+                assertThat(tmp.getPosition(), is(1));
+            }
+        }
+    }
+
+    /**
      * Checks if enum with same name is not allowed.
      * Checks if enum with same name is not allowed.
      */
      */
     @Test(expected = ParserException.class)
     @Test(expected = ParserException.class)

@@ -33,8 +33,9 @@ import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
 import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
 
 
 import java.io.IOException;
 import java.io.IOException;
+import java.util.Iterator;
 import java.util.ListIterator;
 import java.util.ListIterator;
-import java.util.Set;
+import java.util.SortedSet;
 
 
 /**
 /**
  * Test cases for enum listener.
  * Test cases for enum listener.
@@ -73,7 +74,7 @@ public class EnumListenerTest {
         assertThat(((YangEnumeration) leafInfo.getDataType().getDataTypeExtendedInfo()).getName(),
         assertThat(((YangEnumeration) leafInfo.getDataType().getDataTypeExtendedInfo()).getName(),
                 is("speed_enum"));
                 is("speed_enum"));
 
 
-        Set<YangEnum> enumSet = ((YangEnumeration) leafInfo.getDataType().getDataTypeExtendedInfo()).getEnumSet();
+        SortedSet<YangEnum> enumSet = ((YangEnumeration) leafInfo.getDataType().getDataTypeExtendedInfo()).getEnumSet();
         for (YangEnum tmp : enumSet) {
         for (YangEnum tmp : enumSet) {
             if (tmp.getNamedValue().equals("10m")) {
             if (tmp.getNamedValue().equals("10m")) {
                 assertThat(tmp.getValue(), is(0));
                 assertThat(tmp.getValue(), is(0));
@@ -114,4 +115,34 @@ public class EnumListenerTest {
                 + "with the current highest value");
                 + "with the current highest value");
         YangNode node = manager.getDataModel("src/test/resources/EnumMaxNextValue.yang");
         YangNode node = manager.getDataModel("src/test/resources/EnumMaxNextValue.yang");
     }
     }
+
+    /**
+     * Checks enum values stored are sorted.
+     */
+    @Test
+    public void processEnumSorted() throws IOException, ParserException {
+        YangNode node = manager.getDataModel("src/test/resources/EnumSorted.yang");
+        // Check whether the data model tree returned is of type module.
+        assertThat((node instanceof YangModule), is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) node;
+        assertThat(yangNode.getName(), is("Test"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("ifType"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("enumeration"));
+        assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.ENUMERATION));
+        assertThat(((YangEnumeration) leafInfo.getDataType().getDataTypeExtendedInfo()).getName(),
+                is("ifType_enum"));
+
+        SortedSet<YangEnum> enumSet = ((YangEnumeration) leafInfo.getDataType().getDataTypeExtendedInfo()).getEnumSet();
+        Iterator<YangEnum> enumIterator = enumSet.iterator();
+        assertThat(enumIterator.next().getNamedValue(), is("five"));
+    }
 }
 }

@@ -267,4 +267,36 @@ public class LengthRestrictionListenerTest {
         assertThat(((YangUint64) rangeInterval.getStartValue()).getValue(), is(BigInteger.valueOf(0)));
         assertThat(((YangUint64) rangeInterval.getStartValue()).getValue(), is(BigInteger.valueOf(0)));
         assertThat(((YangUint64) rangeInterval.getEndValue()).getValue(), is(BigInteger.valueOf(100)));
         assertThat(((YangUint64) rangeInterval.getEndValue()).getValue(), is(BigInteger.valueOf(100)));
     }
     }
+
+    /**
+     * Checks whether space can be allowed when length statement is present.
+     */
+    @Test
+    public void processLengthStatementWithSpace() throws IOException, ParserException {
+
+        YangNode node = manager.getDataModel("src/test/resources/LengthStatementWithSpace.yang");
+
+        assertThat((node instanceof YangModule), is(true));
+        assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
+        YangModule yangNode = (YangModule) node;
+        assertThat(yangNode.getName(), is("Test"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("invalid-interval"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("string"));
+        assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.STRING));
+        YangStringRestriction stringRestriction = (YangStringRestriction) leafInfo
+                .getDataType().getDataTypeExtendedInfo();
+        YangRangeRestriction lengthRestriction = stringRestriction.getLengthRestriction();
+
+        ListIterator<YangRangeInterval> lengthListIterator = lengthRestriction.getAscendingRangeIntervals()
+                .listIterator();
+
+        YangRangeInterval rangeInterval = lengthListIterator.next();
+
+        assertThat(((YangUint64) rangeInterval.getStartValue()).getValue(), is(BigInteger.valueOf(0)));
+        assertThat(((YangUint64) rangeInterval.getEndValue()).getValue(), is(BigInteger.valueOf(100)));
+    }
 }
 }

@@ -176,4 +176,15 @@ public class MaxElementsListenerTest {
         assertThat(leafListInfo.getName(), is("invalid-interval"));
         assertThat(leafListInfo.getName(), is("invalid-interval"));
         assertThat(leafListInfo.getMaxElelements(), is(2147483647));
         assertThat(leafListInfo.getMaxElelements(), is(2147483647));
     }
     }
+
+    /**
+     * Checks whether exception is thrown when invalid min-elements value is
+     * given as input.
+     */
+    @Test
+    public void processMaxElementsMaxValue() throws IOException, ParserException {
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("YANG file error : max-elements value 77777777777777777777777 is not valid.");
+        YangNode node = manager.getDataModel("src/test/resources/MaxElementsMaxValue.yang");
+    }
 }
 }

@@ -116,6 +116,17 @@ public class MinElementsListenerTest {
     }
     }
 
 
     /**
     /**
+     * Checks whether exception is thrown when invalid min-elements value is
+     * given as input.
+     */
+    @Test
+    public void processMinElementsMaxValue() throws IOException, ParserException {
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("YANG file error : min-elements value 77777777777777777777777 is not valid.");
+        YangNode node = manager.getDataModel("src/test/resources/MinElementsMaxValue.yang");
+    }
+
+    /**
      * Checks whether exception is thrown when min-elements statement without
      * Checks whether exception is thrown when min-elements statement without
      * statement end is given as input.
      * statement end is given as input.
      */
      */

@@ -66,6 +66,6 @@ public class NotificationListenerTest {
         YangLeaf leafInfo = leafIterator.next();
         YangLeaf leafInfo = leafIterator.next();
 
 
         assertThat(leafInfo.getName(), is("if-name"));
         assertThat(leafInfo.getName(), is("if-name"));
-        assertThat(leafInfo.getDataType().getDataTypeName(), is("leafref"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("string"));
     }
     }
 }
 }

@@ -207,4 +207,33 @@ public class RangeRestrictionListenerTest {
         assertThat(((YangInt32) rangeInterval.getEndValue()).getValue(), is(4));
         assertThat(((YangInt32) rangeInterval.getEndValue()).getValue(), is(4));
         assertThat(((YangInt32) rangeInterval.getEndValue()).getValue(), is(4));
         assertThat(((YangInt32) rangeInterval.getEndValue()).getValue(), is(4));
     }
     }
+
+    /**
+     * Checks whether space can be allowed when range statement is present.
+     */
+    @Test
+    public void processRangeStatementWithSpace() throws IOException, ParserException {
+
+        YangNode node = manager.getDataModel("src/test/resources/RangeStatementWithSpace.yang");
+
+        assertThat((node instanceof YangModule), is(true));
+        assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
+        YangModule yangNode = (YangModule) node;
+        assertThat(yangNode.getName(), is("Test"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("invalid-interval"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("int32"));
+        assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.INT32));
+        YangRangeRestriction rangeRestriction = (YangRangeRestriction) leafInfo
+                .getDataType().getDataTypeExtendedInfo();
+
+        ListIterator<YangRangeInterval> rangeListIterator = rangeRestriction.getAscendingRangeIntervals()
+                .listIterator();
+        YangRangeInterval rangeInterval = rangeListIterator.next();
+        assertThat(((YangInt32) rangeInterval.getStartValue()).getValue(), is(1));
+        assertThat(((YangInt32) rangeInterval.getEndValue()).getValue(), is(4));
+    }
 }
 }

@@ -17,7 +17,9 @@ package org.onosproject.yangutils.parser.impl.listeners;
 
 
 import java.io.IOException;
 import java.io.IOException;
 import java.util.ListIterator;
 import java.util.ListIterator;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.Test;
+import org.junit.rules.ExpectedException;
 import org.onosproject.yangutils.datamodel.YangDataTypes;
 import org.onosproject.yangutils.datamodel.YangDataTypes;
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangLeafList;
 import org.onosproject.yangutils.datamodel.YangLeafList;
@@ -35,6 +37,9 @@ import static org.hamcrest.core.Is.is;
  */
  */
 public class TypeListenerTest {
 public class TypeListenerTest {
 
 
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
     private final YangUtilsParserManager manager = new YangUtilsParserManager();
     private final YangUtilsParserManager manager = new YangUtilsParserManager();
 
 
     /**
     /**
@@ -114,4 +119,46 @@ public class TypeListenerTest {
         assertThat(leafListInfo.getDataType().getDataTypeName(), is("uint16"));
         assertThat(leafListInfo.getDataType().getDataTypeName(), is("uint16"));
         assertThat(leafListInfo.getDataType().getDataType(), is(YangDataTypes.UINT16));
         assertThat(leafListInfo.getDataType().getDataType(), is(YangDataTypes.UINT16));
     }
     }
+
+    /**
+     * Checks for unsupported type leafref.
+     */
+    @Test
+    public void processLeafrefType() throws IOException, ParserException {
+
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("YANG file error : \"leafref\" is not supported in current version,"
+                + " please check wiki for YANG utils road map.");
+
+        YangNode node = manager
+                .getDataModel("src/test/resources/LeafrefInvalidIdentifier.yang");
+    }
+
+    /**
+     * Checks for unsupported type identityref.
+     */
+    @Test
+    public void processIdentityrefType() throws IOException, ParserException {
+
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("YANG file error : \"identityref\" is not supported in current version,"
+                + " please check wiki for YANG utils road map.");
+
+        YangNode node = manager
+                .getDataModel("src/test/resources/IdentityrefInvalidIdentifier.yang");
+    }
+
+    /**
+     * Checks for unsupported type instance identifier.
+     */
+    @Test
+    public void processInstanceIdentifierType() throws IOException, ParserException {
+
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("YANG file error : \"instance-identifier\" is not supported in current version,"
+                + " please check wiki for YANG utils road map.");
+
+        YangNode node = manager
+                .getDataModel("src/test/resources/InstanceIdentifierInvalidIdentifier.yang");
+    }
 }
 }

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.parser.impl.parseutils;
+
+import java.io.IOException;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.onosproject.yangutils.parser.exceptions.ParserException;
+import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
+
+/**
+ * Test case for testing listener util.
+ */
+public class ListenerUtilTest {
+
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
+    private final YangUtilsParserManager manager = new YangUtilsParserManager();
+
+    /**
+     * Checks whether exception is thrown when identifier starts with xml.
+     */
+    @Test
+    public void validateIdentifierStartsWithXml() throws IOException {
+        thrown.expect(ParserException.class);
+        thrown.expectMessage("YANG file error : module identifier xMlTest must not start" +
+                " with (('X'|'x') ('M'|'m') ('L'|'l'))");
+        manager.getDataModel("src/test/resources/InValidIdentifierXML.yang");
+    }
+}

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.onosproject.yangutils.parser.parseutils;
-
-import org.junit.Test;
-
-import static org.hamcrest.core.Is.is;
-import static org.junit.Assert.assertThat;
-import static org.onosproject.yangutils.utils.YangConstructType.CONTACT_DATA;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.ENTRY;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructExtendedListenerErrorMessage;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructListenerErrorMessage;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.INVALID_HOLDER;
-
-/**
- * Test case for testing listener error message construction util.
- */
-public class ListenerErrorMessageConstructionTest {
-
-    /**
-     * Checks for error message construction with parsable data type name.
-     */
-    @Test
-    public void checkErrorMsgConstructionWithName() {
-
-        // Create an test error message
-        String testErrorMessage = constructListenerErrorMessage(INVALID_HOLDER, CONTACT_DATA, "Test Instance", ENTRY);
-
-        // Check message.
-        assertThat(testErrorMessage, is("Internal parser error detected: Invalid holder for contact "
-                + "\"Test Instance\" before processing."));
-    }
-
-    /**
-     * Checks for error message construction without parsable data type name.
-     */
-    @Test
-    public void checkErrorMsgConstructionWithoutName() {
-
-        // Create an test error message
-        String testErrorMessage = constructListenerErrorMessage(INVALID_HOLDER, CONTACT_DATA, "Test Instance", ENTRY);
-
-        // Check message.
-        assertThat(testErrorMessage,
-                   is("Internal parser error detected: Invalid holder for contact \"Test Instance\""
-                           + " before processing."));
-    }
-
-    /**
-     * Checks for extended error message construction with parsable data type
-     * name.
-     */
-    @Test
-    public void checkExtendedErrorMsgConstructionWithName() {
-
-        // Create an test error message
-        String testErrorMessage = constructExtendedListenerErrorMessage(INVALID_HOLDER, CONTACT_DATA,
-                                                                        "Test Instance", ENTRY,
-                                                                        "Extended Information");
-
-        // Check message.
-        assertThat(testErrorMessage,
-                   is("Internal parser error detected: Invalid holder for contact \"Test Instance\""
-                           + " before processing.\n" + "Error Information: Extended Information"));
-    }
-
-    /**
-     * Checks for extended error message construction without parsable data type
-     * name.
-     */
-    @Test
-    public void checkExtendedErrorMsgConstructionWithoutName() {
-
-        // Create an test error message
-        String testErrorMessage = constructExtendedListenerErrorMessage(INVALID_HOLDER, CONTACT_DATA, "", ENTRY,
-                                                                        "Extended Information");
-
-        // Check message.
-        assertThat(testErrorMessage, is("Internal parser error detected: Invalid holder for contact"
-                + " before processing.\n" + "Error Information: Extended Information"));
-    }
-}

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.onosproject.yangutils.parser.parseutils;
-
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
-import org.onosproject.yangutils.datamodel.YangRevision;
-import org.onosproject.yangutils.parser.exceptions.ParserException;
-import org.onosproject.yangutils.parser.impl.TreeWalkListener;
-
-import static org.onosproject.yangutils.utils.YangConstructType.YANGBASE_DATA;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.EXIT;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructListenerErrorMessage;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_HOLDER;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerValidation.checkStackIsEmpty;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerValidation.checkStackIsNotEmpty;
-
-/**
- * Test case for testing listener validation util.
- */
-public class ListenerValidationTest {
-
-    @Rule
-    public ExpectedException thrown = ExpectedException.none();
-
-    /**
-     * Checks for exception in case parsable stack is empty while validating for
-     * not empty scenario.
-     */
-    @Test
-    public void validateStackIsNotEmptyForEmptyStack() {
-
-        String expectedError = constructListenerErrorMessage(MISSING_HOLDER, YANGBASE_DATA, "", EXIT);
-
-        // Get the exception occurred during parsing.
-        thrown.expect(ParserException.class);
-        thrown.expectMessage(expectedError);
-
-        // Create test walker and assign test error to it.
-        TreeWalkListener testWalker = new TreeWalkListener();
-
-        checkStackIsNotEmpty(testWalker, MISSING_HOLDER, YANGBASE_DATA, "", EXIT);
-    }
-
-    /**
-     * Checks if there is no exception in case parsable stack is not empty while
-     * validating for not empty scenario.
-     */
-    @Test
-    public void validateStackIsNotEmptyForNonEmptyStack() {
-
-        // Create test walker and assign test error to it.
-        TreeWalkListener testWalker = new TreeWalkListener();
-
-        // Create a temporary node of parsable.
-        YangRevision tmpNode = new YangRevision();
-        testWalker.getParsedDataStack().push(tmpNode);
-
-        checkStackIsNotEmpty(testWalker, MISSING_HOLDER, YANGBASE_DATA, "", EXIT);
-    }
-
-    /**
-     * Checks for exception in case parsable stack is not empty while validating
-     * for empty scenario.
-     */
-    @Test
-    public void validateStackIsEmptyForNonEmptyStack() {
-
-        String expectedError = constructListenerErrorMessage(MISSING_HOLDER, YANGBASE_DATA, "", EXIT);
-
-        // Get the exception occurred during parsing.
-        thrown.expect(ParserException.class);
-        thrown.expectMessage(expectedError);
-
-        // Create test walker and assign test error to it.
-        TreeWalkListener testWalker = new TreeWalkListener();
-
-        // Create a temporary node of parsable.
-        YangRevision tmpNode = new YangRevision();
-        testWalker.getParsedDataStack().push(tmpNode);
-
-        checkStackIsEmpty(testWalker, MISSING_HOLDER, YANGBASE_DATA, "", EXIT);
-    }
-
-    /**
-     * Checks if there is no exception in case parsable stack is empty while
-     * validating for empty scenario.
-     */
-    @Test
-    public void validateStackIsEmptyForEmptyStack() {
-
-        // Create test walker and assign test error to it.
-        TreeWalkListener testWalker = new TreeWalkListener();
-
-        checkStackIsEmpty(testWalker, MISSING_HOLDER, YANGBASE_DATA, "", EXIT);
-    }
-}

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.onosproject.yangutils.parser.parseutils;
-
-import org.antlr.v4.runtime.ANTLRFileStream;
-import org.antlr.v4.runtime.ANTLRInputStream;
-import org.antlr.v4.runtime.CommonTokenStream;
-import org.antlr.v4.runtime.tree.ParseTree;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
-import org.onosproject.yangutils.parser.antlrgencode.GeneratedYangLexer;
-import org.onosproject.yangutils.parser.antlrgencode.GeneratedYangParser;
-import org.onosproject.yangutils.parser.exceptions.ParserException;
-import org.onosproject.yangutils.parser.impl.CustomExceptionMatcher;
-import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
-import org.onosproject.yangutils.parser.impl.parserutils.ParseTreeErrorListener;
-
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.IOException;
-
-/**
- * Test case for testing parse tree error listener.
- */
-public class ParseTreeErrorListenerTest {
-
-    YangUtilsParserManager manager = new YangUtilsParserManager();
-    File file;
-    BufferedWriter out;
-
-    @Rule
-    public ExpectedException thrown = ExpectedException.none();
-
-    /**
-     * Checks that no exception is generated for YANG file with valid syntax.
-     */
-    @Test
-    public void checkValidYangFileForNoSyntaxError() throws IOException {
-
-        ANTLRInputStream input = new ANTLRFileStream("src/test/resources/YangFileWithoutSyntaxError.yang");
-
-        // Create a lexer that feeds off of input char stream.
-        GeneratedYangLexer lexer = new GeneratedYangLexer(input);
-        // Create a buffer of tokens pulled from the lexer.
-        CommonTokenStream tokens = new CommonTokenStream(lexer);
-        // Create a parser that feeds off the tokens buffer.
-        GeneratedYangParser parser = new GeneratedYangParser(tokens);
-        // Remove console error listener.
-        parser.removeErrorListeners();
-        // Create instance of customized error listener.
-        ParseTreeErrorListener parseTreeErrorListener = new ParseTreeErrorListener();
-        // Add customized error listener to catch errors during parsing.
-        parser.addErrorListener(parseTreeErrorListener);
-        // Begin parsing YANG file and generate parse tree.
-        ParseTree tree = parser.yangfile();
-    }
-
-    /**
-     * Checks that exception is generated for YANG file with invalid syntax.
-     */
-    @Test
-    public void checkInvalidYangFileForSyntaxError() throws IOException {
-
-        // Get the exception occurred during parsing.
-        thrown.expect(ParserException.class);
-        thrown.expect(CustomExceptionMatcher.errorLocation(3, 0));
-        thrown.expectMessage("no viable alternative at input 'yang-version 1\\nnamespace'");
-
-        ANTLRInputStream input = new ANTLRFileStream("src/test/resources/YangFileWithSyntaxError.yang");
-
-        // Create a lexer that feeds off of input char stream.
-        GeneratedYangLexer lexer = new GeneratedYangLexer(input);
-        // Create a buffer of tokens pulled from the lexer.
-        CommonTokenStream tokens = new CommonTokenStream(lexer);
-        // Create a parser that feeds off the tokens buffer.
-        GeneratedYangParser parser = new GeneratedYangParser(tokens);
-        // Remove console error listener.
-        parser.removeErrorListeners();
-        // Create instance of customized error listener.
-        ParseTreeErrorListener parseTreeErrorListener = new ParseTreeErrorListener();
-        // Add customized error listener to catch errors during parsing.
-        parser.addErrorListener(parseTreeErrorListener);
-        // Begin parsing YANG file and generate parse tree.
-        ParseTree tree = parser.yangfile();
-    }
-}
\ No newline at end of file

@@ -59,6 +59,7 @@ public class AttributesJavaDataTypeTest {
     private static final String CLASS_INFO5 = "Integer";
     private static final String CLASS_INFO5 = "Integer";
     private static final String TYPE_DEF_PKG = "target.test";
     private static final String TYPE_DEF_PKG = "target.test";
     private static String test = "";
     private static String test = "";
+    private static YangToJavaNamingConflictUtil pluginConfig = null;
 
 
     /**
     /**
      * Unit test for private constructor.
      * Unit test for private constructor.
@@ -71,7 +72,8 @@ public class AttributesJavaDataTypeTest {
      * @throws InvocationTargetException when an exception occurs by the method or constructor
      * @throws InvocationTargetException when an exception occurs by the method or constructor
      */
      */
     @Test
     @Test
-    public void callPrivateConstructors() throws SecurityException, NoSuchMethodException, IllegalArgumentException,
+    public void callPrivateConstructors()
+            throws SecurityException, NoSuchMethodException, IllegalArgumentException,
             InstantiationException, IllegalAccessException, InvocationTargetException {
             InstantiationException, IllegalAccessException, InvocationTargetException {
 
 
         Class<?>[] classesToConstruct = {AttributesJavaDataType.class };
         Class<?>[] classesToConstruct = {AttributesJavaDataType.class };
@@ -87,16 +89,16 @@ public class AttributesJavaDataTypeTest {
      */
      */
     @Test
     @Test
     public void testgetJavaClassInfo() {
     public void testgetJavaClassInfo() {
-        test = getJavaImportClass(getStubYangType(TYPE1), false);
+        test = getJavaImportClass(getStubYangType(TYPE1), false, pluginConfig);
         assertThat(true, is(test.equals(CLASS_INFO1)));
         assertThat(true, is(test.equals(CLASS_INFO1)));
 
 
-        test = getJavaImportClass(getStubYangType(TYPE2), true);
+        test = getJavaImportClass(getStubYangType(TYPE2), true, pluginConfig);
         assertThat(true, is(test.equals(CLASS_INFO5)));
         assertThat(true, is(test.equals(CLASS_INFO5)));
 
 
-        test = getJavaImportClass(getStubYangType(TYPE3), false);
+        test = getJavaImportClass(getStubYangType(TYPE3), false, pluginConfig);
         assertThat(null, is(test));
         assertThat(null, is(test));
 
 
-        test = getJavaImportClass(getStubYangType(TYPE4), false);
+        test = getJavaImportClass(getStubYangType(TYPE4), false, pluginConfig);
         assertThat(null, is(test));
         assertThat(null, is(test));
     }
     }
 
 
@@ -123,16 +125,16 @@ public class AttributesJavaDataTypeTest {
      */
      */
     @Test
     @Test
     public void testgetJavaPkgInfo() {
     public void testgetJavaPkgInfo() {
-        test = getJavaImportPackage(getStubYangType(TYPE1), false, CLASS_INFO1);
+        test = getJavaImportPackage(getStubYangType(TYPE1), false, pluginConfig);
         assertThat(true, is(test.equals(JAVA_LANG)));
         assertThat(true, is(test.equals(JAVA_LANG)));
 
 
-        test = getJavaImportPackage(getStubYangType(TYPE2), true, CLASS_INFO5);
+        test = getJavaImportPackage(getStubYangType(TYPE2), true, pluginConfig);
         assertThat(true, is(test.equals(JAVA_LANG)));
         assertThat(true, is(test.equals(JAVA_LANG)));
 
 
-        test = getJavaImportPackage(getStubYangType(TYPE3), false, CLASS_INFO3);
+        test = getJavaImportPackage(getStubYangType(TYPE3), false, pluginConfig);
         assertThat(null, is(test));
         assertThat(null, is(test));
 
 
-        test = getJavaImportPackage(getStubYangType(TYPE4), false, CLASS_INFO4);
+        test = getJavaImportPackage(getStubYangType(TYPE4), false, pluginConfig);
         assertThat(null, is(test));
         assertThat(null, is(test));
     }
     }
 
 
@@ -143,7 +145,7 @@ public class AttributesJavaDataTypeTest {
      */
      */
     @Test
     @Test
     public void testForTypeDef() throws DataModelException {
     public void testForTypeDef() throws DataModelException {
-        test = getJavaImportPackage(getStubExtendedInfo(getStubYangType(TYPE_DEF)), false, TYPE_DEF_PKG);
+        test = getJavaImportPackage(getStubExtendedInfo(getStubYangType(TYPE_DEF)), false, pluginConfig);
         assertThat(true, is(test.equals(TYPE_DEF_PKG)));
         assertThat(true, is(test.equals(TYPE_DEF_PKG)));
     }
     }
 
 

@@ -17,6 +17,7 @@
 package org.onosproject.yangutils.translator.tojava.utils;
 package org.onosproject.yangutils.translator.tojava.utils;
 
 
 import java.io.IOException;
 import java.io.IOException;
+
 import org.junit.Test;
 import org.junit.Test;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
@@ -44,7 +45,7 @@ public final class ChoiceCaseTranslatorTest {
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         yangPluginConfig.setCodeGenDir(userDir + "/target/ChoiceCaseTestGenFile/");
         yangPluginConfig.setCodeGenDir(userDir + "/target/ChoiceCaseTestGenFile/");
 
 
-        generateJavaCode(node, yangPluginConfig, "ChoiceCaseTranslator");
+        generateJavaCode(node, yangPluginConfig);
 
 
         deleteDirectory(userDir + "/target/ChoiceCaseTestGenFile/");
         deleteDirectory(userDir + "/target/ChoiceCaseTestGenFile/");
     }
     }

@@ -46,7 +46,7 @@ public final class EnumTranslatorTest {
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         yangPluginConfig.setCodeGenDir(userDir + "/target/EnumTestGenFile/");
         yangPluginConfig.setCodeGenDir(userDir + "/target/EnumTestGenFile/");
 
 
-        generateJavaCode(node, yangPluginConfig, "EnumTranslator");
+        generateJavaCode(node, yangPluginConfig);
 
 
         deleteDirectory(userDir + "/target/EnumTestGenFile/");
         deleteDirectory(userDir + "/target/EnumTestGenFile/");
     }
     }

@@ -19,7 +19,10 @@ package org.onosproject.yangutils.translator.tojava.utils;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.InvocationTargetException;
 
 
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.onosproject.yangutils.translator.exception.TranslatorException;
 
 
 import static org.hamcrest.core.Is.is;
 import static org.hamcrest.core.Is.is;
 import static org.hamcrest.core.IsNot.not;
 import static org.hamcrest.core.IsNot.not;
@@ -38,6 +41,9 @@ import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
  */
  */
 public final class JavaIdentifierSyntaxTest {
 public final class JavaIdentifierSyntaxTest {
 
 
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
     private static final String PARENT_PACKAGE = "test5/test6/test7";
     private static final String PARENT_PACKAGE = "test5/test6/test7";
     private static final String CHILD_PACKAGE = "test1:test2:test3";
     private static final String CHILD_PACKAGE = "test1:test2:test3";
     private static final String DATE1 = "2000-1-5";
     private static final String DATE1 = "2000-1-5";
@@ -47,10 +53,17 @@ public final class JavaIdentifierSyntaxTest {
     private static final String DATE_WITH_REV1 = "rev20000105";
     private static final String DATE_WITH_REV1 = "rev20000105";
     private static final String DATE_WITH_REV2 = "rev19920125";
     private static final String DATE_WITH_REV2 = "rev19920125";
     private static final String VERSION_NUMBER = "v1";
     private static final String VERSION_NUMBER = "v1";
+    private static final String VALID_PREFIX = "123add-prefix";
+    private static final String INVALID_PREFIX = "-*()&^&#$%";
+    private static final String INVALID_PREFIX1 = "abc~!@#$%^&*()_+}{:<>?`1234567890-=[]''|,./SS";
+    private static final String INVALID_NAME_SPACE_FOR_INVALID_PREFIX = "try:#test3:9case3";
     private static final String INVALID_NAME_SPACE1 = "byte:#test2:9test3";
     private static final String INVALID_NAME_SPACE1 = "byte:#test2:9test3";
     private static final String INVALID_NAME_SPACE2 = "const:#test2://9test3";
     private static final String INVALID_NAME_SPACE2 = "const:#test2://9test3";
-    private static final String VALID_NAME_SPACE1 = "yangautoprefixbyte.test2.yangautoprefix9test3";
+    private static final String INVALID_NAME_SPACE3 = "CONST:TRY://9test3";
+    private static final String VALID_NAME_SPACE1 = "123addprefixbyte.test2.123addprefix9test3";
     private static final String VALID_NAME_SPACE2 = "yangautoprefixconst.test2.yangautoprefix9test3";
     private static final String VALID_NAME_SPACE2 = "yangautoprefixconst.test2.yangautoprefix9test3";
+    private static final String VALID_NAME_SPACE3 = "abc1234567890ssconst.test2.abc1234567890ss9test3";
+    private static final String VALID_NAME_SPACE4 = "yangautoprefixconst.yangautoprefixtry.yangautoprefix9test3";
     private static final String WITHOUT_CAMEL_CASE = "test-camel-case-identifier";
     private static final String WITHOUT_CAMEL_CASE = "test-camel-case-identifier";
     private static final String WITH_CAMEL_CASE = "testCamelCaseIdentifier";
     private static final String WITH_CAMEL_CASE = "testCamelCaseIdentifier";
     private static final String WITHOUT_CAMEL_CASE1 = ".-_try-._-.123";
     private static final String WITHOUT_CAMEL_CASE1 = ".-_try-._-.123";
@@ -77,9 +90,16 @@ public final class JavaIdentifierSyntaxTest {
     private static final String WITH_CAMEL_CASE11 = "test3Name";
     private static final String WITH_CAMEL_CASE11 = "test3Name";
     private static final String WITHOUT_CAMEL_CASE12 = "TEST3name";
     private static final String WITHOUT_CAMEL_CASE12 = "TEST3name";
     private static final String WITH_CAMEL_CASE12 = "test3Name";
     private static final String WITH_CAMEL_CASE12 = "test3Name";
+    private static final String WITHOUT_CAMEL_CASE13 = "t-RY";
+    private static final String WITH_CAMEL_CASE13 = "tRy";
+    private static final String WITHOUT_CAMEL_CASE14 = "TRY";
+    private static final String WITH_CAMEL_CASE14 = "yangAutoPrefixTry";
     private static final String WITHOUT_CAPITAL = "test_this";
     private static final String WITHOUT_CAPITAL = "test_this";
     private static final String WITH_CAPITAL = "Test_this";
     private static final String WITH_CAPITAL = "Test_this";
     private static final String WITH_SMALL = "test_this";
     private static final String WITH_SMALL = "test_this";
+    private static final String WITH_CAMEL_CASE_WITH_PREFIX = "123addPrefixTry";
+    private static final String WITH_CAMEL_CASE_WITH_PREFIX1 = "abc1234567890Ss1123G123Gaa";
+    private static YangToJavaNamingConflictUtil conflictResolver = new YangToJavaNamingConflictUtil();
 
 
     /**
     /**
      * Unit test for private constructor.
      * Unit test for private constructor.
@@ -111,22 +131,44 @@ public final class JavaIdentifierSyntaxTest {
      */
      */
     @Test
     @Test
     public void getRootPackageTest() {
     public void getRootPackageTest() {
-        String rootPackage = getRootPackage((byte) 1, CHILD_PACKAGE, DATE1);
+        conflictResolver.setPrefixForIdentifier(null);
+        String rootPackage = getRootPackage((byte) 1, CHILD_PACKAGE, DATE1, conflictResolver);
         assertThat(rootPackage.equals(DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER
         assertThat(rootPackage.equals(DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER
                 + PERIOD + CHILD_WITH_PERIOD + PERIOD + DATE_WITH_REV1), is(true));
                 + PERIOD + CHILD_WITH_PERIOD + PERIOD + DATE_WITH_REV1), is(true));
     }
     }
 
 
     /**
     /**
+     * Unit test for root package generation with invalid prefix.
+     */
+    @Test
+    public void getRootPackageWithInvalidPrefix() throws TranslatorException {
+        thrown.expect(TranslatorException.class);
+        thrown.expectMessage("The given prefix in pom.xml is invalid.");
+        conflictResolver.setPrefixForIdentifier(INVALID_PREFIX);
+        String rootPackage1 = getRootPackage((byte) 1, INVALID_NAME_SPACE_FOR_INVALID_PREFIX, DATE1, conflictResolver);
+    }
+
+    /**
      * Unit test for root package generation with special characters presence.
      * Unit test for root package generation with special characters presence.
      */
      */
     @Test
     @Test
     public void getRootPackageWithSpecialCharactersTest() {
     public void getRootPackageWithSpecialCharactersTest() {
-        String rootPackage = getRootPackage((byte) 1, INVALID_NAME_SPACE1, DATE1);
+        conflictResolver.setPrefixForIdentifier(VALID_PREFIX);
+        String rootPackage = getRootPackage((byte) 1, INVALID_NAME_SPACE1, DATE1, conflictResolver);
         assertThat(rootPackage.equals(DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER
         assertThat(rootPackage.equals(DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER
                 + PERIOD + VALID_NAME_SPACE1 + PERIOD + DATE_WITH_REV1), is(true));
                 + PERIOD + VALID_NAME_SPACE1 + PERIOD + DATE_WITH_REV1), is(true));
-        String rootPackage1 = getRootPackage((byte) 1, INVALID_NAME_SPACE2, DATE1);
+        conflictResolver.setPrefixForIdentifier(null);
+        String rootPackage1 = getRootPackage((byte) 1, INVALID_NAME_SPACE2, DATE1, conflictResolver);
         assertThat(rootPackage1.equals(DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER
         assertThat(rootPackage1.equals(DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER
                 + PERIOD + VALID_NAME_SPACE2 + PERIOD + DATE_WITH_REV1), is(true));
                 + PERIOD + VALID_NAME_SPACE2 + PERIOD + DATE_WITH_REV1), is(true));
+        String rootPackage2 = getRootPackage((byte) 1, INVALID_NAME_SPACE3, DATE1, conflictResolver);
+        assertThat(rootPackage2.equals(DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER
+                + PERIOD + VALID_NAME_SPACE4 + PERIOD + DATE_WITH_REV1), is(true));
+        conflictResolver.setPrefixForIdentifier(INVALID_PREFIX1);
+        String rootPackage3 = getRootPackage((byte) 1, INVALID_NAME_SPACE2, DATE1, conflictResolver);
+        assertThat(rootPackage3.equals(DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER
+                + PERIOD + VALID_NAME_SPACE3 + PERIOD + DATE_WITH_REV1), is(true));
+
     }
     }
 
 
     /**
     /**
@@ -134,7 +176,7 @@ public final class JavaIdentifierSyntaxTest {
      */
      */
     @Test
     @Test
     public void getRootPackageWithRevTest() {
     public void getRootPackageWithRevTest() {
-        String rootPkgWithRev = getRootPackage((byte) 1, CHILD_PACKAGE, DATE2);
+        String rootPkgWithRev = getRootPackage((byte) 1, CHILD_PACKAGE, DATE2, null);
         assertThat(rootPkgWithRev.equals(
         assertThat(rootPkgWithRev.equals(
                 DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER + PERIOD + CHILD_WITH_PERIOD + PERIOD + DATE_WITH_REV2),
                 DEFAULT_BASE_PKG + PERIOD + VERSION_NUMBER + PERIOD + CHILD_WITH_PERIOD + PERIOD + DATE_WITH_REV2),
                 is(true));
                 is(true));
@@ -154,32 +196,63 @@ public final class JavaIdentifierSyntaxTest {
      */
      */
     @Test
     @Test
     public void getCamelCaseTest() {
     public void getCamelCaseTest() {
-        String camelCase = getCamelCase(WITHOUT_CAMEL_CASE, null);
+        conflictResolver.setPrefixForIdentifier(null);
+        String camelCase = getCamelCase(WITHOUT_CAMEL_CASE, conflictResolver);
         assertThat(camelCase.equals(WITH_CAMEL_CASE), is(true));
         assertThat(camelCase.equals(WITH_CAMEL_CASE), is(true));
-        String camelCase1 = getCamelCase(WITHOUT_CAMEL_CASE1, null);
+        String camelCase1 = getCamelCase(WITHOUT_CAMEL_CASE1, conflictResolver);
         assertThat(camelCase1.equals(WITH_CAMEL_CASE1), is(true));
         assertThat(camelCase1.equals(WITH_CAMEL_CASE1), is(true));
-        String camelCase2 = getCamelCase(WITHOUT_CAMEL_CASE2, null);
+        String camelCase2 = getCamelCase(WITHOUT_CAMEL_CASE2, conflictResolver);
         assertThat(camelCase2.equals(WITH_CAMEL_CASE2), is(true));
         assertThat(camelCase2.equals(WITH_CAMEL_CASE2), is(true));
-        String camelCase3 = getCamelCase(WITHOUT_CAMEL_CASE3, null);
+        String camelCase3 = getCamelCase(WITHOUT_CAMEL_CASE3, conflictResolver);
         assertThat(camelCase3.equals(WITH_CAMEL_CASE3), is(true));
         assertThat(camelCase3.equals(WITH_CAMEL_CASE3), is(true));
-        String camelCase4 = getCamelCase(WITHOUT_CAMEL_CASE4, null);
+        String camelCase4 = getCamelCase(WITHOUT_CAMEL_CASE4, conflictResolver);
         assertThat(camelCase4.equals(WITH_CAMEL_CASE4), is(true));
         assertThat(camelCase4.equals(WITH_CAMEL_CASE4), is(true));
-        String camelCase5 = getCamelCase(WITHOUT_CAMEL_CASE5, null);
+        String camelCase5 = getCamelCase(WITHOUT_CAMEL_CASE5, conflictResolver);
         assertThat(camelCase5.equals(WITH_CAMEL_CASE5), is(true));
         assertThat(camelCase5.equals(WITH_CAMEL_CASE5), is(true));
-        String camelCase6 = getCamelCase(WITHOUT_CAMEL_CASE6, null);
+        String camelCase6 = getCamelCase(WITHOUT_CAMEL_CASE6, conflictResolver);
         assertThat(camelCase6.equals(WITH_CAMEL_CASE6), is(true));
         assertThat(camelCase6.equals(WITH_CAMEL_CASE6), is(true));
-        String camelCase7 = getCamelCase(WITHOUT_CAMEL_CASE7, null);
+        String camelCase7 = getCamelCase(WITHOUT_CAMEL_CASE7, conflictResolver);
         assertThat(camelCase7.equals(WITH_CAMEL_CASE7), is(true));
         assertThat(camelCase7.equals(WITH_CAMEL_CASE7), is(true));
-        String camelCase8 = getCamelCase(WITHOUT_CAMEL_CASE8, null);
+        String camelCase8 = getCamelCase(WITHOUT_CAMEL_CASE8, conflictResolver);
         assertThat(camelCase8.equals(WITH_CAMEL_CASE8), is(true));
         assertThat(camelCase8.equals(WITH_CAMEL_CASE8), is(true));
-        String camelCase9 = getCamelCase(WITHOUT_CAMEL_CASE9, null);
+        String camelCase9 = getCamelCase(WITHOUT_CAMEL_CASE9, conflictResolver);
         assertThat(camelCase9.equals(WITH_CAMEL_CASE9), is(true));
         assertThat(camelCase9.equals(WITH_CAMEL_CASE9), is(true));
-        String camelCase10 = getCamelCase(WITHOUT_CAMEL_CASE10, null);
+        String camelCase10 = getCamelCase(WITHOUT_CAMEL_CASE10, conflictResolver);
         assertThat(camelCase10.equals(WITH_CAMEL_CASE10), is(true));
         assertThat(camelCase10.equals(WITH_CAMEL_CASE10), is(true));
-        String camelCase11 = getCamelCase(WITHOUT_CAMEL_CASE11, null);
+        String camelCase11 = getCamelCase(WITHOUT_CAMEL_CASE11, conflictResolver);
         assertThat(camelCase11.equals(WITH_CAMEL_CASE11), is(true));
         assertThat(camelCase11.equals(WITH_CAMEL_CASE11), is(true));
-        String camelCase12 = getCamelCase(WITHOUT_CAMEL_CASE12, null);
+        String camelCase12 = getCamelCase(WITHOUT_CAMEL_CASE12, conflictResolver);
         assertThat(camelCase12.equals(WITH_CAMEL_CASE12), is(true));
         assertThat(camelCase12.equals(WITH_CAMEL_CASE12), is(true));
+        String camelCase13 = getCamelCase(WITHOUT_CAMEL_CASE13, conflictResolver);
+        assertThat(camelCase13.equals(WITH_CAMEL_CASE13), is(true));
+        String camelCase14 = getCamelCase(WITHOUT_CAMEL_CASE14, conflictResolver);
+        assertThat(camelCase14.equals(WITH_CAMEL_CASE14), is(true));
+    }
+
+    /**
+     * Unit test for getting the camel case along with the prefix provided.
+     */
+    @Test
+    public void getCamelCaseWithPrefixTest() {
+
+        conflictResolver.setPrefixForIdentifier(VALID_PREFIX);
+        String camelCase = getCamelCase(WITHOUT_CAMEL_CASE2, conflictResolver);
+        assertThat(camelCase.equals(WITH_CAMEL_CASE_WITH_PREFIX), is(true));
+        conflictResolver.setPrefixForIdentifier(INVALID_PREFIX1);
+        String camelCase2 = getCamelCase(WITHOUT_CAMEL_CASE3, conflictResolver);
+        assertThat(camelCase2.equals(WITH_CAMEL_CASE_WITH_PREFIX1), is(true));
+    }
+
+    /**
+     * Unit test for getting the camel case along with the invalid prefix provided.
+     */
+    @Test
+    public void getCamelCaseWithInvalidPrefixTest() throws TranslatorException {
+
+        thrown.expect(TranslatorException.class);
+        thrown.expectMessage("The given prefix in pom.xml is invalid.");
+        conflictResolver.setPrefixForIdentifier(INVALID_PREFIX);
+        String camelCase = getCamelCase(WITHOUT_CAMEL_CASE3, conflictResolver);
     }
     }
 
 
     /**
     /**

@@ -29,6 +29,7 @@ import static org.hamcrest.core.IsNot.not;
 import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertThat;
 import static org.onosproject.yangutils.datamodel.YangDataTypes.STRING;
 import static org.onosproject.yangutils.datamodel.YangDataTypes.STRING;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getBuild;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getBuild;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getBuildForInterface;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getBuildForInterface;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getCheckNotNull;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getCheckNotNull;
@@ -105,7 +106,7 @@ public final class MethodsGeneratorTest {
             throws SecurityException, NoSuchMethodException, IllegalArgumentException,
             throws SecurityException, NoSuchMethodException, IllegalArgumentException,
             InstantiationException, IllegalAccessException, InvocationTargetException {
             InstantiationException, IllegalAccessException, InvocationTargetException {
 
 
-        Class<?>[] classesToConstruct = {MethodsGenerator.class};
+        Class<?>[] classesToConstruct = {MethodsGenerator.class };
         for (Class<?> clazz : classesToConstruct) {
         for (Class<?> clazz : classesToConstruct) {
             Constructor<?> constructor = clazz.getDeclaredConstructor();
             Constructor<?> constructor = clazz.getDeclaredConstructor();
             constructor.setAccessible(true);
             constructor.setAccessible(true);
@@ -118,8 +119,10 @@ public final class MethodsGeneratorTest {
      */
      */
     @Test
     @Test
     public void getTypeConstructorTest() {
     public void getTypeConstructorTest() {
+
+        YangPluginConfig pluginConfig = new YangPluginConfig();
         JavaAttributeInfo testAttr = getTestAttribute();
         JavaAttributeInfo testAttr = getTestAttribute();
-        String test = getTypeConstructorStringAndJavaDoc(testAttr, CLASS_NAME);
+        String test = getTypeConstructorStringAndJavaDoc(testAttr, CLASS_NAME, pluginConfig);
         assertThat(true, is(test.contains(PUBLIC + SPACE + CLASS_NAME + OPEN_PARENTHESIS)));
         assertThat(true, is(test.contains(PUBLIC + SPACE + CLASS_NAME + OPEN_PARENTHESIS)));
     }
     }
 
 
@@ -162,7 +165,8 @@ public final class MethodsGeneratorTest {
     @Test
     @Test
     public void getConstructorTest() {
     public void getConstructorTest() {
         JavaAttributeInfo testAttr = getTestAttribute();
         JavaAttributeInfo testAttr = getTestAttribute();
-        String method = getConstructor(CLASS_NAME, testAttr, GENERATE_SERVICE_AND_MANAGER);
+        YangPluginConfig pluginConfig = new YangPluginConfig();
+        String method = getConstructor(CLASS_NAME, testAttr, GENERATE_SERVICE_AND_MANAGER, pluginConfig);
         assertThat(true, is(method.contains(THIS + PERIOD + CLASS_NAME + SPACE + EQUAL + SPACE + "builder" + OBJECT
         assertThat(true, is(method.contains(THIS + PERIOD + CLASS_NAME + SPACE + EQUAL + SPACE + "builder" + OBJECT
                 + PERIOD + GET_METHOD_PREFIX + "Testname" + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SEMI_COLAN)));
                 + PERIOD + GET_METHOD_PREFIX + "Testname" + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SEMI_COLAN)));
     }
     }
@@ -172,7 +176,8 @@ public final class MethodsGeneratorTest {
      */
      */
     @Test
     @Test
     public void getConstructorStartTest() {
     public void getConstructorStartTest() {
-        String method = getConstructorStart(CLASS_NAME);
+        YangPluginConfig pluginConfig = new YangPluginConfig();
+        String method = getConstructorStart(CLASS_NAME, pluginConfig);
         assertThat(true, is(method.contains(PUBLIC + SPACE + CLASS_NAME + IMPL + OPEN_PARENTHESIS + CLASS_NAME
         assertThat(true, is(method.contains(PUBLIC + SPACE + CLASS_NAME + IMPL + OPEN_PARENTHESIS + CLASS_NAME
                 + BUILDER + SPACE + BUILDER.toLowerCase() + OBJECT + CLOSE_PARENTHESIS + SPACE
                 + BUILDER + SPACE + BUILDER.toLowerCase() + OBJECT + CLOSE_PARENTHESIS + SPACE
                 + OPEN_CURLY_BRACKET + NEW_LINE)));
                 + OPEN_CURLY_BRACKET + NEW_LINE)));
@@ -227,10 +232,10 @@ public final class MethodsGeneratorTest {
     public void getSetterForClassTest() {
     public void getSetterForClassTest() {
         JavaAttributeInfo testAttr = getTestAttribute();
         JavaAttributeInfo testAttr = getTestAttribute();
         String method = getSetterForClass(testAttr, CLASS_NAME, GENERATE_SERVICE_AND_MANAGER);
         String method = getSetterForClass(testAttr, CLASS_NAME, GENERATE_SERVICE_AND_MANAGER);
-//        assertThat(true, is(
-//                method.contains(PUBLIC + SPACE + CLASS_NAME + BUILDER + SPACE + SET_METHOD_PREFIX
-//                        + getCaptialCase(ATTRIBUTE_NAME) + OPEN_PARENTHESIS + STRING_DATA_TYPE + SPACE
-//                        + ATTRIBUTE_NAME)));
+        assertThat(true, is(
+                method.contains(PUBLIC + SPACE + VOID + SPACE +
+                        SET_METHOD_PREFIX + getCapitalCase(CLASS_NAME) + OPEN_PARENTHESIS +
+                        STRING_DATA_TYPE + SPACE + ATTRIBUTE_NAME)));
     }
     }
 
 
     /**
     /**
@@ -240,7 +245,8 @@ public final class MethodsGeneratorTest {
     public void getSetterForInterfaceTest() {
     public void getSetterForInterfaceTest() {
         String method = getSetterForInterface(CLASS_NAME, STRING_DATA_TYPE, CLASS_NAME, false,
         String method = getSetterForInterface(CLASS_NAME, STRING_DATA_TYPE, CLASS_NAME, false,
                 GENERATE_SERVICE_AND_MANAGER);
                 GENERATE_SERVICE_AND_MANAGER);
-//        assertThat(true, is(method.contains(CLASS_NAME + BUILDER + SPACE + SET_METHOD_PREFIX + "Testname")));
+        assertThat(true, is(method.contains(VOID + SPACE +
+                SET_METHOD_PREFIX + "Testname")));
     }
     }
 
 
     /**
     /**

@@ -46,7 +46,7 @@ public final class NotificationTranslatorTest {
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         yangPluginConfig.setCodeGenDir(userDir + "/target/NotificationTest/");
         yangPluginConfig.setCodeGenDir(userDir + "/target/NotificationTest/");
 
 
-        generateJavaCode(node, yangPluginConfig, "NotificationTest");
+        generateJavaCode(node, yangPluginConfig);
 
 
         deleteDirectory(userDir + "/target/NotificationTest/");
         deleteDirectory(userDir + "/target/NotificationTest/");
     }
     }

@@ -46,7 +46,7 @@ public final class RpcTranslatorTest {
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         yangPluginConfig.setCodeGenDir(userDir + "/target/RpcTestGenFile/");
         yangPluginConfig.setCodeGenDir(userDir + "/target/RpcTestGenFile/");
 
 
-        generateJavaCode(node, yangPluginConfig, "RpcTranslator");
+        generateJavaCode(node, yangPluginConfig);
 
 
         deleteDirectory(userDir + "/target/RpcTestGenFile/");
         deleteDirectory(userDir + "/target/RpcTestGenFile/");
     }
     }

@@ -46,7 +46,7 @@ public final class UnionTranslatorTest {
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         yangPluginConfig.setCodeGenDir("target/UnionTestGenFile/");
         yangPluginConfig.setCodeGenDir("target/UnionTestGenFile/");
 
 
-        generateJavaCode(node, yangPluginConfig, "UnionTranslator");
+        generateJavaCode(node, yangPluginConfig);
 
 
         deleteDirectory(userDir + "/target/UnionTestGenFile/");
         deleteDirectory(userDir + "/target/UnionTestGenFile/");
     }
     }

@@ -25,6 +25,7 @@ import org.junit.Test;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModule;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModule;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
 import static org.hamcrest.core.Is.is;
 import static org.hamcrest.core.Is.is;
 import static org.hamcrest.core.IsNot.not;
 import static org.hamcrest.core.IsNot.not;
@@ -125,7 +126,20 @@ public final class FileSystemUtilTest {
         javafileInfo.setJavaName(TEST_DATA_1);
         javafileInfo.setJavaName(TEST_DATA_1);
         javafileInfo.setBaseCodeGenPath("");
         javafileInfo.setBaseCodeGenPath("");
         javafileInfo.setPackageFilePath(BASE_PKG);
         javafileInfo.setPackageFilePath(BASE_PKG);
+        javafileInfo.setPluginConfig(getStubPluginConfig());
         module.setJavaFileInfo(javafileInfo);
         module.setJavaFileInfo(javafileInfo);
         return module;
         return module;
     }
     }
+
+    /**
+     * Returns stub pluginConfig.
+     *
+     * @return stub pluginConfig
+     */
+    private YangPluginConfig getStubPluginConfig() {
+        YangPluginConfig pluginConfig = new YangPluginConfig();
+        pluginConfig.setConflictResolver(null);
+        return pluginConfig;
+    }
+
 }
 }

@@ -22,6 +22,7 @@ import java.lang.reflect.InvocationTargetException;
 import org.junit.Rule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 import org.junit.rules.ExpectedException;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 
 import static org.hamcrest.core.Is.is;
 import static org.hamcrest.core.Is.is;
 import static org.hamcrest.core.IsNot.not;
 import static org.hamcrest.core.IsNot.not;
@@ -55,7 +56,7 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void builderClassGenerationTest() {
     public void builderClassGenerationTest() {
-        String builderClassJavaDoc = getJavaDoc(BUILDER_CLASS, TEST_NAME, false);
+        String builderClassJavaDoc = getJavaDoc(BUILDER_CLASS, TEST_NAME, false, getStubPluginConfig());
         assertThat(true, is(builderClassJavaDoc.contains("Represents the builder implementation of")
         assertThat(true, is(builderClassJavaDoc.contains("Represents the builder implementation of")
                 && builderClassJavaDoc.contains(END_STRING)));
                 && builderClassJavaDoc.contains(END_STRING)));
     }
     }
@@ -65,9 +66,10 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void builderInterfaceGenerationTest() {
     public void builderInterfaceGenerationTest() {
-        String builderInterfaceJavaDoc = getJavaDoc(BUILDER_INTERFACE, TEST_NAME, false);
+        String builderInterfaceJavaDoc = getJavaDoc(BUILDER_INTERFACE, TEST_NAME, false, getStubPluginConfig());
         assertThat(true,
         assertThat(true,
-                is(builderInterfaceJavaDoc.contains("Builder for") && builderInterfaceJavaDoc.contains(END_STRING)));
+                is(builderInterfaceJavaDoc.contains("Builder for")
+                        && builderInterfaceJavaDoc.contains(END_STRING)));
     }
     }
 
 
     /**
     /**
@@ -75,7 +77,7 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void buildGenerationTest() {
     public void buildGenerationTest() {
-        String buildDoc = getJavaDoc(BUILD_METHOD, TEST_NAME, false);
+        String buildDoc = getJavaDoc(BUILD_METHOD, TEST_NAME, false, getStubPluginConfig());
         assertThat(true, is(buildDoc.contains("Builds object of") && buildDoc.contains(END_STRING)));
         assertThat(true, is(buildDoc.contains("Builds object of") && buildDoc.contains(END_STRING)));
     }
     }
 
 
@@ -90,7 +92,8 @@ public final class JavaDocGenTest {
      * @throws InvocationTargetException when an exception occurs by the method or constructor
      * @throws InvocationTargetException when an exception occurs by the method or constructor
      */
      */
     @Test
     @Test
-    public void callPrivateConstructors() throws SecurityException, NoSuchMethodException, IllegalArgumentException,
+    public void callPrivateConstructors()
+            throws SecurityException, NoSuchMethodException, IllegalArgumentException,
             InstantiationException, IllegalAccessException, InvocationTargetException {
             InstantiationException, IllegalAccessException, InvocationTargetException {
 
 
         Class<?>[] classesToConstruct = {JavaDocGen.class };
         Class<?>[] classesToConstruct = {JavaDocGen.class };
@@ -106,9 +109,10 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void constructorGenerationTest() {
     public void constructorGenerationTest() {
-        String constructorDoc = getJavaDoc(CONSTRUCTOR, TEST_NAME, false);
+        String constructorDoc = getJavaDoc(CONSTRUCTOR, TEST_NAME, false, getStubPluginConfig());
         assertThat(true,
         assertThat(true,
-                is(constructorDoc.contains("Creates an instance of ") && constructorDoc.contains("builder object of")
+                is(constructorDoc.contains("Creates an instance of ")
+                        && constructorDoc.contains("builder object of")
                         && constructorDoc.contains("@param") && constructorDoc.contains("*/\n")));
                         && constructorDoc.contains("@param") && constructorDoc.contains("*/\n")));
     }
     }
 
 
@@ -117,7 +121,7 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void defaultConstructorGenerationTest() {
     public void defaultConstructorGenerationTest() {
-        String defaultConstructorDoc = getJavaDoc(DEFAULT_CONSTRUCTOR, TEST_NAME, false);
+        String defaultConstructorDoc = getJavaDoc(DEFAULT_CONSTRUCTOR, TEST_NAME, false, getStubPluginConfig());
         assertThat(true, is(defaultConstructorDoc.contains("Creates an instance of ")
         assertThat(true, is(defaultConstructorDoc.contains("Creates an instance of ")
                 && defaultConstructorDoc.contains(END_STRING)));
                 && defaultConstructorDoc.contains(END_STRING)));
     }
     }
@@ -127,8 +131,9 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void getterGenerationTest() {
     public void getterGenerationTest() {
-        String getterJavaDoc = getJavaDoc(GETTER_METHOD, TEST_NAME, false);
-        assertThat(true, is(getterJavaDoc.contains("Returns the attribute") && getterJavaDoc.contains(END_STRING)));
+        String getterJavaDoc = getJavaDoc(GETTER_METHOD, TEST_NAME, false, getStubPluginConfig());
+        assertThat(true,
+                is(getterJavaDoc.contains("Returns the attribute") && getterJavaDoc.contains(END_STRING)));
     }
     }
 
 
     /**
     /**
@@ -136,7 +141,7 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void implClassGenerationTest() {
     public void implClassGenerationTest() {
-        String implClassJavaDoc = getJavaDoc(IMPL_CLASS, TEST_NAME, false);
+        String implClassJavaDoc = getJavaDoc(IMPL_CLASS, TEST_NAME, false, getStubPluginConfig());
         assertThat(true,
         assertThat(true,
                 is(implClassJavaDoc.contains("Represents the implementation of")
                 is(implClassJavaDoc.contains("Represents the implementation of")
                         && implClassJavaDoc.contains(END_STRING)));
                         && implClassJavaDoc.contains(END_STRING)));
@@ -147,7 +152,7 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void interfaceGenerationTest() {
     public void interfaceGenerationTest() {
-        String interfaceJavaDoc = getJavaDoc(INTERFACE, TEST_NAME, false);
+        String interfaceJavaDoc = getJavaDoc(INTERFACE, TEST_NAME, false, getStubPluginConfig());
         assertThat(true,
         assertThat(true,
                 is(interfaceJavaDoc.contains("Abstraction of an entity which represents the functionality of")
                 is(interfaceJavaDoc.contains("Abstraction of an entity which represents the functionality of")
                         && interfaceJavaDoc.contains(END_STRING)));
                         && interfaceJavaDoc.contains(END_STRING)));
@@ -158,8 +163,9 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void packageInfoGenerationTest() {
     public void packageInfoGenerationTest() {
-        String packageInfo = getJavaDoc(PACKAGE_INFO, TEST_NAME, false);
-        assertThat(true, is(packageInfo.contains("Implementation of YANG node") && packageInfo.contains(END_STRING)));
+        String packageInfo = getJavaDoc(PACKAGE_INFO, TEST_NAME, false, getStubPluginConfig());
+        assertThat(true,
+                is(packageInfo.contains("Implementation of YANG node") && packageInfo.contains(END_STRING)));
     }
     }
 
 
     /**
     /**
@@ -167,7 +173,7 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void packageInfoGenerationForChildNodeTest() {
     public void packageInfoGenerationForChildNodeTest() {
-        String packageInfo = getJavaDoc(PACKAGE_INFO, TEST_NAME, true);
+        String packageInfo = getJavaDoc(PACKAGE_INFO, TEST_NAME, true, getStubPluginConfig());
         assertThat(true, is(packageInfo.contains("Implementation of YANG node testName's children nodes")
         assertThat(true, is(packageInfo.contains("Implementation of YANG node testName's children nodes")
                 && packageInfo.contains(END_STRING)));
                 && packageInfo.contains(END_STRING)));
     }
     }
@@ -177,7 +183,7 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void setterGenerationTest() {
     public void setterGenerationTest() {
-        String setterJavaDoc = getJavaDoc(SETTER_METHOD, TEST_NAME, false);
+        String setterJavaDoc = getJavaDoc(SETTER_METHOD, TEST_NAME, false, getStubPluginConfig());
         assertThat(true,
         assertThat(true,
                 is(setterJavaDoc.contains("Returns the builder object of") && setterJavaDoc.contains(END_STRING)));
                 is(setterJavaDoc.contains("Returns the builder object of") && setterJavaDoc.contains(END_STRING)));
     }
     }
@@ -187,7 +193,18 @@ public final class JavaDocGenTest {
      */
      */
     @Test
     @Test
     public void typeDefSetterGenerationTest() {
     public void typeDefSetterGenerationTest() {
-        String typeDefSetter = getJavaDoc(TYPE_DEF_SETTER_METHOD, TEST_NAME, false);
+        String typeDefSetter = getJavaDoc(TYPE_DEF_SETTER_METHOD, TEST_NAME, false, getStubPluginConfig());
         assertThat(true, is(typeDefSetter.contains("Sets the value of") && typeDefSetter.contains(END_STRING)));
         assertThat(true, is(typeDefSetter.contains("Sets the value of") && typeDefSetter.contains(END_STRING)));
     }
     }
+
+    /**
+     * Returns stub pluginConfig.
+     *
+     * @return stub pluginConfig
+     */
+    private YangPluginConfig getStubPluginConfig() {
+        YangPluginConfig pluginConfig = new YangPluginConfig();
+        pluginConfig.setConflictResolver(null);
+        return pluginConfig;
+    }
 }
 }
\ No newline at end of file

@@ -25,6 +25,7 @@ import org.apache.maven.project.MavenProject;
 import org.junit.Rule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 import org.junit.rules.ExpectedException;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 import org.onosproject.yangutils.utils.UtilConstants;
 import org.onosproject.yangutils.utils.UtilConstants;
 import org.sonatype.plexus.build.incremental.BuildContext;
 import org.sonatype.plexus.build.incremental.BuildContext;
 import org.sonatype.plexus.build.incremental.DefaultBuildContext;
 import org.sonatype.plexus.build.incremental.DefaultBuildContext;
@@ -68,7 +69,7 @@ public final class YangIoUtilsTest {
 
 
         File dirPath = new File(CREATE_PATH);
         File dirPath = new File(CREATE_PATH);
         dirPath.mkdirs();
         dirPath.mkdirs();
-        addPackageInfo(dirPath, CHECK1, CREATE_PATH, false);
+        addPackageInfo(dirPath, CHECK1, CREATE_PATH, false, getStubPluginConfig());
         File filePath = new File(dirPath + File.separator + PKG_INFO);
         File filePath = new File(dirPath + File.separator + PKG_INFO);
         assertThat(filePath.isFile(), is(true));
         assertThat(filePath.isFile(), is(true));
     }
     }
@@ -83,7 +84,7 @@ public final class YangIoUtilsTest {
 
 
         File dirPath = new File(CREATE_PATH);
         File dirPath = new File(CREATE_PATH);
         dirPath.mkdirs();
         dirPath.mkdirs();
-        addPackageInfo(dirPath, CHECK1, PATH + CREATE_PATH, false);
+        addPackageInfo(dirPath, CHECK1, PATH + CREATE_PATH, false, getStubPluginConfig());
         File filePath = new File(dirPath + File.separator + PKG_INFO);
         File filePath = new File(dirPath + File.separator + PKG_INFO);
         assertThat(filePath.isFile(), is(true));
         assertThat(filePath.isFile(), is(true));
     }
     }
@@ -98,7 +99,7 @@ public final class YangIoUtilsTest {
 
 
         File dirPath = new File(CREATE_PATH);
         File dirPath = new File(CREATE_PATH);
         dirPath.mkdirs();
         dirPath.mkdirs();
-        addPackageInfo(dirPath, CHECK1, PATH + CREATE_PATH, true);
+        addPackageInfo(dirPath, CHECK1, PATH + CREATE_PATH, true, getStubPluginConfig());
         File filePath = new File(dirPath + File.separator + PKG_INFO);
         File filePath = new File(dirPath + File.separator + PKG_INFO);
         assertThat(filePath.isFile(), is(true));
         assertThat(filePath.isFile(), is(true));
     }
     }
@@ -114,7 +115,7 @@ public final class YangIoUtilsTest {
         File dirPath = new File("invalid/check");
         File dirPath = new File("invalid/check");
         thrown.expect(IOException.class);
         thrown.expect(IOException.class);
         thrown.expectMessage(MSG);
         thrown.expectMessage(MSG);
-        addPackageInfo(dirPath, CHECK1, CREATE_PATH, false);
+        addPackageInfo(dirPath, CHECK1, CREATE_PATH, false, getStubPluginConfig());
         File filePath1 = new File(dirPath + File.separator + PKG_INFO);
         File filePath1 = new File(dirPath + File.separator + PKG_INFO);
         assertThat(filePath1.isFile(), is(false));
         assertThat(filePath1.isFile(), is(false));
     }
     }
@@ -130,7 +131,8 @@ public final class YangIoUtilsTest {
      * @throws InvocationTargetException when an exception occurs by the method or constructor
      * @throws InvocationTargetException when an exception occurs by the method or constructor
      */
      */
     @Test
     @Test
-    public void callPrivateConstructors() throws SecurityException, NoSuchMethodException, IllegalArgumentException,
+    public void callPrivateConstructors()
+            throws SecurityException, NoSuchMethodException, IllegalArgumentException,
             InstantiationException, IllegalAccessException, InvocationTargetException {
             InstantiationException, IllegalAccessException, InvocationTargetException {
 
 
         Class<?>[] classesToConstruct = {YangIoUtils.class };
         Class<?>[] classesToConstruct = {YangIoUtils.class };
@@ -192,7 +194,7 @@ public final class YangIoUtilsTest {
         addToSource(sourceDir.toString(), project, context);
         addToSource(sourceDir.toString(), project, context);
     }
     }
 
 
-    /*
+    /**
      * Unit test case for trim at last method.
      * Unit test case for trim at last method.
      */
      */
     @Test
     @Test
@@ -202,4 +204,14 @@ public final class YangIoUtilsTest {
         assertThat(test.contains(TRIM_STRING), is(true));
         assertThat(test.contains(TRIM_STRING), is(true));
     }
     }
 
 
+    /**
+     * Returns stub pluginConfig.
+     *
+     * @return stub pluginConfig
+     */
+    private YangPluginConfig getStubPluginConfig() {
+        YangPluginConfig pluginConfig = new YangPluginConfig();
+        pluginConfig.setConflictResolver(null);
+        return pluginConfig;
+    }
 }
 }

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    typedef type15 { 
+        type bits {
+             bit disable-nagle {
+                 position 0;
+             }
+             bit auto-sense-speed {
+                 position 1;
+             }
+             bit Mb-only {
+                 position 2;
+             }
+         }
+    }
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf type15 { 
+        type union {
+            type bits {
+                bit disable-nagle {
+                    position 0;
+                }
+                bit auto-sense-speed {
+                    position 1;
+                }
+                bit Mb-only {
+                    position 2;
+                }
+            }
+        }
+    }
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf ifType {
+        type enumeration {
+             enum four{
+                 value 7;
+             }
+             enum seven {
+                 value 2147483647;
+             }
+             enum five {
+                 value 5;
+             }       
+         }
+    }
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    grouping currentcheck {
+        leaf invalid-interval {
+            type identityref {
+            }
+        }
+    }
+}

+module xMlTest {
+yang-version 1;
+namespace urn:ietf:params:xml:ns:yang:ietf-ospf;
+prefix On;
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container currentcheck {
+        leaf invalid-interval {
+            type instance-identifier;
+        }
+    }
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf-list invalid-interval {
+        type leafref;
+    }
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf invalid-interval {
+        type string {
+            length "                                               0                                                                                      ..                                                                                                                                                                      100                                                                                         ";
+         }
+    }
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf-list invalid-interval {
+        type "uint16";
+        max-elements 77777777777777777777777;
+    }
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf-list invalid-interval {
+        type "uint16";
+        min-elements 77777777777777777777777;
+    }
+}

@@ -11,5 +11,5 @@ module Test {
             bit Ten-Mb-only;
             bit Ten-Mb-only;
         }
         }
     }
     }
-    }
 }
 }
+

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+        container food {
+            choice snack {
+                list sports-arena {
+                }
+            }
+        }
+    }
+}
+}
+}
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    import ietf-yang-types {
+        prefix "P";
+    }
+    grouping Percentage {
+        leaf hello{
+            type string;
+        }
+        leaf invalid1{
+            type string;
+        }
+        }
+        leaf invalid2{
+            type string;
+        }
+    }
+    container ospf {
+        list valid {
+            key "invalid";
+            leaf invalid{
+                type string;
+            }
+            uses Ant:FirstClass;
+            grouping FirstClass {
+                uses P:PassingClass;
+            }
+        }
+        grouping PassingClass {
+            uses Ant:Percentage;
+        }
+    }
+}

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container food {
+        choice snack {
+            list sports-arena {
+            }
+        }
+    }
+}
+leaf invalid {
+

+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf invalid-interval {
+        type int32 {
+            range "                          1                        ..                                        4 |                        10               ..                                          20                  ";
+         }
+    }
+}
+

@@ -11,5 +11,4 @@ module Test {
             }
             }
         }
         }
     }
     }
-    }
 }
 }

@@ -12,5 +12,5 @@ module Test {
             }
             }
         }
         }
     }
     }
-    }
 }
 }
+

@@ -14,7 +14,7 @@ module rock {
            type int32;
            type int32;
         }
         }
         leaf if-name {
         leaf if-name {
-           type leafref;
+           type string;
         }
         }
         leaf if-admin-status {
         leaf if-admin-status {
            type P:admin-status;
            type P:admin-status;