[ONOS-3114] Added service for storing list of classifier devices for sfc

Change-Id: I780b1c8d289e4cba8cce76dde2439e95f88fa9a0

@@ -61,6 +61,12 @@
             <scope>test</scope>
             <scope>test</scope>
         </dependency>
         </dependency>
         <dependency>
         <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-api</artifactId>
+            <scope>test</scope>
+            <classifier>tests</classifier>
+        </dependency>
+        <dependency>
             <groupId>com.sun.jersey</groupId>
             <groupId>com.sun.jersey</groupId>
             <artifactId>jersey-servlet</artifactId>
             <artifactId>jersey-servlet</artifactId>
         </dependency>
         </dependency>

+/*
+ * Copyright 2015 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.vtnrsc.classifier;
+
+import org.onosproject.net.DeviceId;
+
+/**
+ * Provides Services for Classifier.
+ */
+public interface ClassifierService {
+
+    /**
+     * Get Classifier devices for sfc.
+     *
+     * @return list of device id's for classifiers
+     */
+    Iterable<DeviceId> getClassifiers();
+
+    /**
+     * Add Classifier device for sfc.
+     */
+    void addClassifier(DeviceId deviceId);
+
+    /**
+     * Remove Classifier device for sfc.
+     */
+    void removeClassifier(DeviceId deviceId);
+}

+/*
+ * Copyright 2015 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.vtnrsc.classifier.impl;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onosproject.net.DeviceId;
+import org.onosproject.store.serializers.KryoNamespaces;
+import org.onosproject.store.service.DistributedSet;
+import org.onosproject.store.service.Serializer;
+import org.onosproject.store.service.StorageService;
+import org.onosproject.vtnrsc.classifier.ClassifierService;
+import org.slf4j.Logger;
+
+import com.google.common.collect.ImmutableList;
+
+/**
+ * Provides implementation of the Classifier Service.
+ */
+@Component(immediate = true)
+@Service
+public class ClassifierManager implements ClassifierService {
+
+    private final Logger log = getLogger(ClassifierManager.class);
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected StorageService storageService;
+
+    private DistributedSet<DeviceId> classifierList;
+
+    @Activate
+    protected void activate() {
+        classifierList = storageService.<DeviceId>setBuilder()
+                .withName("classifier")
+                .withSerializer(Serializer.using(KryoNamespaces.API))
+                .build();
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        log.info("Stopped");
+    }
+
+    @Override
+    public void addClassifier(DeviceId deviceId) {
+        classifierList.add(deviceId);
+    }
+
+    @Override
+    public Iterable<DeviceId> getClassifiers() {
+        return ImmutableList.copyOf(classifierList);
+    }
+
+    @Override
+    public void removeClassifier(DeviceId deviceId) {
+        classifierList.remove(deviceId);
+    }
+}

+/*
+ * Copyright 2015 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.
+ */
+
+/**
+ * Provides implementation of the Classifier service.
+ */
+package org.onosproject.vtnrsc.classifier.impl;

+/*
+ * Copyright 2015 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.
+ */
+
+/**
+ * Service for interacting with Classifier of SFC.
+ */
+package org.onosproject.vtnrsc.classifier;