[ONOS-2337,ONOS-2338,ONOS-2339]Pcep Controller

Change-Id: I27fee4669ec923a55d83993b493699c1c46a1b36

@@ -15,7 +15,7 @@
  */
  */
 package org.onosproject.pcep.controller;
 package org.onosproject.pcep.controller;
 
 
-import java.util.List;
+import java.util.Collection;
 
 
 import org.onosproject.pcepio.protocol.PcepMessage;
 import org.onosproject.pcepio.protocol.PcepMessage;
 
 
@@ -31,7 +31,7 @@ public interface PcepClientController {
      *
      *
      * @return list of PcepClient elements
      * @return list of PcepClient elements
      */
      */
-    public List<PcepClient> getClients();
+    Collection<PcepClient> getClients();
 
 
     /**
     /**
      * Returns the actual pcc client for the given ip address.
      * Returns the actual pcc client for the given ip address.
@@ -39,7 +39,7 @@ public interface PcepClientController {
      * @param pccId the id of the pcc client to fetch
      * @param pccId the id of the pcc client to fetch
      * @return the interface to this pcc client
      * @return the interface to this pcc client
      */
      */
-    public PcepClient getClient(PccId pccId);
+    PcepClient getClient(PccId pccId);
 
 
     /**
     /**
      * Register a listener for meta events that occur to pcep
      * Register a listener for meta events that occur to pcep
@@ -47,28 +47,28 @@ public interface PcepClientController {
      *
      *
      * @param listener the listener to notify
      * @param listener the listener to notify
      */
      */
-    public void addListener(PcepClientListener listener);
+    void addListener(PcepClientListener listener);
 
 
     /**
     /**
      * Unregister a listener.
      * Unregister a listener.
      *
      *
      * @param listener the listener to unregister
      * @param listener the listener to unregister
      */
      */
-    public void removeListener(PcepClientListener listener);
+    void removeListener(PcepClientListener listener);
 
 
     /**
     /**
      * Register a listener for OF msg events.
      * Register a listener for OF msg events.
      *
      *
      * @param listener the listener to notify
      * @param listener the listener to notify
      */
      */
-    public void addEventListener(PcepEventListener listener);
+    void addEventListener(PcepEventListener listener);
 
 
     /**
     /**
      * Unregister a listener.
      * Unregister a listener.
      *
      *
      * @param listener the listener to unregister
      * @param listener the listener to unregister
      */
      */
-    public void removeEventListener(PcepEventListener listener);
+    void removeEventListener(PcepEventListener listener);
 
 
     /**
     /**
      * Send a message to a particular pcc client.
      * Send a message to a particular pcc client.
@@ -76,7 +76,7 @@ public interface PcepClientController {
      * @param pccId the id of the client to send message.
      * @param pccId the id of the client to send message.
      * @param msg the message to send
      * @param msg the message to send
      */
      */
-    public void writeMessage(PccId pccId, PcepMessage msg);
+    void writeMessage(PccId pccId, PcepMessage msg);
 
 
     /**
     /**
      * Process a message and notify the appropriate listeners.
      * Process a message and notify the appropriate listeners.
@@ -84,10 +84,10 @@ public interface PcepClientController {
      * @param pccId id of the client the message arrived on
      * @param pccId id of the client the message arrived on
      * @param msg the message to process.
      * @param msg the message to process.
      */
      */
-    public void processClientMessage(PccId pccId, PcepMessage msg);
+    void processClientMessage(PccId pccId, PcepMessage msg);
 
 
     /**
     /**
      * Close all connected PCC clients.
      * Close all connected PCC clients.
      */
      */
-    public void closeConnectedClients();
+    void closeConnectedClients();
 }
 }

@@ -42,6 +42,27 @@ public interface PcepPacketStats {
     public int wrongPacketCount();
     public int wrongPacketCount();
 
 
     /**
     /**
+     * Increments the received packet counter.
+     */
+    public void addInPacket();
+
+    /**
+     * Increments the sent packet counter.
+     */
+    public void addOutPacket();
+
+    /**
+     * Increments the sent packet counter by specified value.
+     * @param value of no of packets sent
+     */
+    public void addOutPacket(int value);
+
+    /**
+     * Increments the wrong packet counter.
+     */
+    public void addWrongPacket();
+
+    /**
      * Returns the time value.
      * Returns the time value.
      *
      *
      * @return long value of time
      * @return long value of time

+<!--
+  ~ Copyright 2014 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.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.onosproject</groupId>
+        <artifactId>onos-pcep-controller</artifactId>
+        <version>1.3.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>onos-pcep-controller-impl</artifactId>
+    <packaging>bundle</packaging>
+
+    <description>ONOS PCEP controller subsystem API</description>
+
+    <dependencies>
+        <dependency>
+            <!-- FIXME once experimenter gets merged to upstream -->
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-pcep-controller-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.felix</groupId>
+            <artifactId>org.apache.felix.scr.annotations</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.compendium</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onlab-misc</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-scr-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

+/*
+ * 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.pcep.controller.impl;
+
+import static org.onlab.util.Tools.groupedThreads;
+
+import java.lang.management.ManagementFactory;
+import java.lang.management.RuntimeMXBean;
+import java.net.InetSocketAddress;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.Executors;
+
+import org.jboss.netty.bootstrap.ServerBootstrap;
+import org.jboss.netty.channel.ChannelPipelineFactory;
+import org.jboss.netty.channel.group.ChannelGroup;
+import org.jboss.netty.channel.group.DefaultChannelGroup;
+import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
+import org.onosproject.pcep.controller.PccId;
+import org.onosproject.pcep.controller.PcepPacketStats;
+import org.onosproject.pcep.controller.driver.PcepAgent;
+import org.onosproject.pcep.controller.driver.PcepClientDriver;
+import org.onosproject.pcepio.protocol.PcepFactories;
+import org.onosproject.pcepio.protocol.PcepFactory;
+import org.onosproject.pcepio.protocol.PcepVersion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The main controller class. Handles all setup and network listeners -
+ * Distributed ownership control of pcc through IControllerRegistryService
+ */
+public class Controller {
+
+    private static final Logger log = LoggerFactory.getLogger(Controller.class);
+
+    private static final PcepFactory FACTORY1 = PcepFactories.getFactory(PcepVersion.PCEP_1);
+
+    private ChannelGroup cg;
+
+    // Configuration options
+    private int pcepPort = 4189;
+    private int workerThreads = 10;
+
+    // Start time of the controller
+    private long systemStartTime;
+
+    private PcepAgent agent;
+
+    private NioServerSocketChannelFactory execFactory;
+
+    // Perf. related configuration
+    private static final int SEND_BUFFER_SIZE = 4 * 1024 * 1024;
+
+    /**
+     * Returns factory version for processing pcep messages.
+     *
+     * @return instance of factory version
+     */
+    public PcepFactory getPcepMessageFactory1() {
+        return FACTORY1;
+    }
+
+    /**
+     * To get system start time.
+     *
+     * @return system start time in milliseconds
+     */
+    public long getSystemStartTime() {
+        return (this.systemStartTime);
+    }
+
+    /**
+     * Tell controller that we're ready to accept pcc connections.
+     */
+    public void run() {
+        try {
+            final ServerBootstrap bootstrap = createServerBootStrap();
+
+            bootstrap.setOption("reuseAddr", true);
+            bootstrap.setOption("child.keepAlive", true);
+            bootstrap.setOption("child.tcpNoDelay", true);
+            bootstrap.setOption("child.sendBufferSize", Controller.SEND_BUFFER_SIZE);
+
+            ChannelPipelineFactory pfact = new PcepPipelineFactory(this);
+
+            bootstrap.setPipelineFactory(pfact);
+            InetSocketAddress sa = new InetSocketAddress(pcepPort);
+            cg = new DefaultChannelGroup();
+            cg.add(bootstrap.bind(sa));
+            log.info("Listening for PCC connection on {}", sa);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * Creates server boot strap.
+     *
+     * @return ServerBootStrap
+     */
+    private ServerBootstrap createServerBootStrap() {
+        if (workerThreads == 0) {
+            execFactory = new NioServerSocketChannelFactory(
+                    Executors.newCachedThreadPool(groupedThreads("onos/pcep", "boss-%d")),
+                    Executors.newCachedThreadPool(groupedThreads("onos/pcep", "worker-%d")));
+            return new ServerBootstrap(execFactory);
+        } else {
+            execFactory = new NioServerSocketChannelFactory(
+                    Executors.newCachedThreadPool(groupedThreads("onos/pcep", "boss-%d")),
+                    Executors.newCachedThreadPool(groupedThreads("onos/pcep", "worker-%d")), workerThreads);
+            return new ServerBootstrap(execFactory);
+        }
+    }
+
+    /**
+     * Initialize internal data structures.
+     */
+    public void init() {
+        // These data structures are initialized here because other
+        // module's startUp() might be called before ours
+        this.systemStartTime = System.currentTimeMillis();
+    }
+
+    public Map<String, Long> getMemory() {
+        Map<String, Long> m = new HashMap<>();
+        Runtime runtime = Runtime.getRuntime();
+        m.put("total", runtime.totalMemory());
+        m.put("free", runtime.freeMemory());
+        return m;
+    }
+
+    public Long getUptime() {
+        RuntimeMXBean rb = ManagementFactory.getRuntimeMXBean();
+        return rb.getUptime();
+    }
+
+    /**
+     * Creates instance of Pcep client.
+     *
+     * @param pccId pcc identifier
+     * @param sessionID session id
+     * @param pv pcep version
+     * @param pktStats pcep packet statistics
+     * @return instance of PcepClient
+     */
+    protected PcepClientDriver getPcepClientInstance(PccId pccId, int sessionID, PcepVersion pv,
+            PcepPacketStats pktStats) {
+        PcepClientDriver pcepClientDriver = new PcepClientImpl();
+        pcepClientDriver.init(pccId, pv, pktStats);
+        pcepClientDriver.setAgent(agent);
+        return pcepClientDriver;
+    }
+
+    /**
+     * Starts the pcep controller.
+     *
+     * @param ag Pcep agent
+     */
+    public void start(PcepAgent ag) {
+        log.info("Started");
+        this.agent = ag;
+        this.init();
+        this.run();
+    }
+
+    /**
+     * Stops the pcep controller.
+     */
+    public void stop() {
+        log.info("Stopped");
+        execFactory.shutdown();
+        cg.close();
+    }
+}

+/*
+ * 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.pcep.controller.impl;
+
+import static org.onlab.util.Tools.groupedThreads;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+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.Service;
+import org.onosproject.net.driver.DriverService;
+import org.onosproject.pcep.controller.PccId;
+import org.onosproject.pcep.controller.PcepClient;
+import org.onosproject.pcep.controller.PcepClientController;
+import org.onosproject.pcep.controller.PcepClientListener;
+import org.onosproject.pcep.controller.PcepEventListener;
+import org.onosproject.pcep.controller.driver.PcepAgent;
+import org.onosproject.pcepio.protocol.PcepMessage;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.collect.Sets;
+
+@Component(immediate = true)
+@Service
+public class PcepClientControllerImpl implements PcepClientController {
+
+    private static final Logger log = LoggerFactory.getLogger(PcepClientControllerImpl.class);
+
+    //@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DriverService driverService;
+
+    private final ExecutorService executorMsgs =
+            Executors.newFixedThreadPool(32, groupedThreads("onos/pcep", "event-stats-%d"));
+
+    private final ExecutorService executorBarrier =
+            Executors.newFixedThreadPool(4, groupedThreads("onos/pcep", "event-barrier-%d"));
+
+    protected ConcurrentHashMap<PccId, PcepClient> connectedClients =
+            new ConcurrentHashMap<PccId, PcepClient>();
+
+    protected PcepClientAgent agent = new PcepClientAgent();
+    protected Set<PcepClientListener> pcepClientListener = new HashSet<>();
+
+    protected Set<PcepEventListener> pcepEventListener = Sets.newHashSet();
+
+    private final Controller ctrl = new Controller();
+
+    @Activate
+    public void activate() {
+        ctrl.start(agent);
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        // Close all connected clients
+        closeConnectedClients();
+        ctrl.stop();
+        log.info("Stopped");
+    }
+
+    @Override
+    public Collection<PcepClient> getClients() {
+        return connectedClients.values();
+    }
+
+    @Override
+    public PcepClient getClient(PccId pccId) {
+        return connectedClients.get(pccId);
+    }
+
+    @Override
+    public void addListener(PcepClientListener listener) {
+        if (!pcepClientListener.contains(listener)) {
+            this.pcepClientListener.add(listener);
+        }
+    }
+
+    @Override
+    public void removeListener(PcepClientListener listener) {
+        this.pcepClientListener.remove(listener);
+    }
+
+    @Override
+    public void addEventListener(PcepEventListener listener) {
+        pcepEventListener.add(listener);
+    }
+
+    @Override
+    public void removeEventListener(PcepEventListener listener) {
+        pcepEventListener.remove(listener);
+    }
+
+    @Override
+    public void writeMessage(PccId pccId, PcepMessage msg) {
+        this.getClient(pccId).sendMessage(msg);
+    }
+
+    @Override
+    public void processClientMessage(PccId pccId, PcepMessage msg) {
+        PcepClient pc = getClient(pccId);
+
+        switch (msg.getType()) {
+        case NONE:
+            break;
+        case OPEN:
+            break;
+        case KEEP_ALIVE:
+            break;
+        case PATH_COMPUTATION_REQUEST:
+            break;
+        case PATH_COMPUTATION_REPLY:
+            break;
+        case NOTIFICATION:
+            break;
+        case ERROR:
+            break;
+        case CLOSE:
+            log.info("Sending Close Message  to {" + pccId.toString() + "}");
+            pc.sendMessage(Collections.singletonList(pc.factory().buildCloseMsg().build()));
+            //now disconnect client
+            pc.disconnectClient();
+            break;
+        case REPORT:
+            for (PcepEventListener l : pcepEventListener) {
+                l.handleMessage(pccId, msg);
+            }
+            break;
+        case UPDATE:
+            for (PcepEventListener l : pcepEventListener) {
+                l.handleMessage(pccId, msg);
+            }
+            break;
+        case INITIATE:
+            for (PcepEventListener l : pcepEventListener) {
+                l.handleMessage(pccId, msg);
+            }
+            break;
+        case LABEL_UPDATE:
+            break;
+        case MAX:
+            break;
+        case END:
+            break;
+        default:
+            break;
+        }
+    }
+
+    @Override
+    public void closeConnectedClients() {
+        PcepClient pc;
+        for (PccId id : connectedClients.keySet()) {
+            pc = getClient(id);
+            pc.disconnectClient();
+        }
+    }
+
+    /**
+     * Implementation of an Pcep Agent which is responsible for
+     * keeping track of connected clients and the state in which
+     * they are.
+     */
+    public class PcepClientAgent implements PcepAgent {
+
+        private final Logger log = LoggerFactory.getLogger(PcepClientAgent.class);
+        private final Lock clientLock = new ReentrantLock();
+
+        @Override
+        public boolean addConnectedClient(PccId pccId, PcepClient pc) {
+
+            if (connectedClients.get(pccId) != null) {
+                log.error("Trying to add connectedClient but found a previous "
+                        + "value for pcc ip: {}", pccId.toString());
+                return false;
+            } else {
+                log.debug("Added Client {}", pccId.toString());
+                connectedClients.put(pccId, pc);
+                for (PcepClientListener l : pcepClientListener) {
+                    l.clientConnected(pccId);
+                }
+                return true;
+            }
+        }
+
+        @Override
+        public boolean validActivation(PccId pccId) {
+            if (connectedClients.get(pccId) == null) {
+                log.error("Trying to activate client but is not in "
+                        + "connected client: pccIp {}. Aborting ..", pccId.toString());
+                return false;
+            }
+
+            return true;
+        }
+
+        @Override
+        public void removeConnectedClient(PccId pccId) {
+
+            connectedClients.remove(pccId);
+            for (PcepClientListener l : pcepClientListener) {
+                log.warn("removal for {}", pccId.toString());
+                l.clientDisconnected(pccId);
+            }
+        }
+
+        @Override
+        public void processPcepMessage(PccId pccId, PcepMessage m) {
+            processClientMessage(pccId, m);
+        }
+    }
+}

+/*
+ * 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.pcep.controller.impl;
+
+import java.net.InetSocketAddress;
+import java.net.SocketAddress;
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.RejectedExecutionException;
+
+import org.jboss.netty.channel.Channel;
+import org.onlab.packet.IpAddress;
+import org.onosproject.pcep.controller.PccId;
+import org.onosproject.pcep.controller.PcepPacketStats;
+import org.onosproject.pcep.controller.driver.PcepAgent;
+import org.onosproject.pcep.controller.driver.PcepClientDriver;
+import org.onosproject.pcepio.protocol.PcepFactories;
+import org.onosproject.pcepio.protocol.PcepFactory;
+import org.onosproject.pcepio.protocol.PcepMessage;
+import org.onosproject.pcepio.protocol.PcepVersion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * An abstract representation of an OpenFlow switch. Can be extended by others
+ * to serve as a base for their vendor specific representation of a switch.
+ */
+public class PcepClientImpl implements PcepClientDriver {
+
+    protected final Logger log = LoggerFactory.getLogger(PcepClientImpl.class);
+
+    private static final String SHUTDOWN_MSG = "Worker has already been shutdown";
+
+    private Channel channel;
+    protected String channelId;
+
+    private boolean connected;
+    protected boolean startDriverHandshakeCalled = false;
+    protected boolean isHandShakeComplete = false;
+    protected boolean isSyncComplete = false;
+    private PccId pccId;
+    private PcepAgent agent;
+
+    private PcepVersion pcepVersion;
+    private byte keepAliveTime;
+    private byte deadTime;
+    private byte sessionId;
+    private PcepPacketStatsImpl pktStats;
+
+    @Override
+    public void init(PccId pccId, PcepVersion pcepVersion, PcepPacketStats pktStats) {
+        this.pccId = pccId;
+        this.pcepVersion = pcepVersion;
+        this.pktStats = (PcepPacketStatsImpl) pktStats;
+    }
+
+    @Override
+    public final void disconnectClient() {
+        this.channel.close();
+    }
+
+    @Override
+    public final void sendMessage(PcepMessage m) {
+        log.debug("Sending message to {}", channel.getRemoteAddress());
+        try {
+            channel.write(Collections.singletonList(m));
+            this.pktStats.addOutPacket();
+        } catch (RejectedExecutionException e) {
+            log.warn(e.getMessage());
+            if (!e.getMessage().contains(SHUTDOWN_MSG)) {
+                throw e;
+            }
+        }
+    }
+
+    @Override
+    public final void sendMessage(List<PcepMessage> msgs) {
+        try {
+            channel.write(msgs);
+            this.pktStats.addOutPacket(msgs.size());
+        } catch (RejectedExecutionException e) {
+            log.warn(e.getMessage());
+            if (!e.getMessage().contains(SHUTDOWN_MSG)) {
+                throw e;
+            }
+        }
+    }
+
+    @Override
+    public final boolean isConnected() {
+        return this.connected;
+    }
+
+    @Override
+    public final void setConnected(boolean connected) {
+        this.connected = connected;
+    };
+
+    @Override
+    public final void setChannel(Channel channel) {
+        this.channel = channel;
+        final SocketAddress address = channel.getRemoteAddress();
+        if (address instanceof InetSocketAddress) {
+            final InetSocketAddress inetAddress = (InetSocketAddress) address;
+            final IpAddress ipAddress = IpAddress.valueOf(inetAddress.getAddress());
+            if (ipAddress.isIp4()) {
+                channelId = ipAddress.toString() + ':' + inetAddress.getPort();
+            } else {
+                channelId = '[' + ipAddress.toString() + "]:" + inetAddress.getPort();
+            }
+        }
+    };
+
+    @Override
+    public String channelId() {
+        return channelId;
+    }
+
+    @Override
+    public final PccId getPccId() {
+        return this.pccId;
+    }
+
+    @Override
+    public final String getStringId() {
+        return this.pccId.toString();
+    }
+
+    @Override
+    public final void setPcVersion(PcepVersion pcepVersion) {
+        this.pcepVersion = pcepVersion;
+    }
+
+    @Override
+    public void setPcKeepAliveTime(byte keepAliveTime) {
+        this.keepAliveTime = keepAliveTime;
+    }
+
+    @Override
+    public void setPcDeadTime(byte deadTime) {
+        this.deadTime = deadTime;
+    }
+
+    @Override
+    public void setPcSessionId(byte sessionId) {
+        this.sessionId = sessionId;
+    }
+
+    @Override
+    public void setIsSyncComplete(boolean value) {
+        this.isSyncComplete = value;
+    }
+
+    @Override
+    public boolean isSyncComplete() {
+        return isSyncComplete;
+    }
+
+    @Override
+    public final void handleMessage(PcepMessage m) {
+        this.pktStats.addInPacket();
+        this.agent.processPcepMessage(pccId, m);
+    }
+
+    @Override
+    public final boolean connectClient() {
+        return this.agent.addConnectedClient(pccId, this);
+    }
+
+    @Override
+    public final void removeConnectedClient() {
+        this.agent.removeConnectedClient(pccId);
+    }
+
+    @Override
+    public PcepFactory factory() {
+        return PcepFactories.getFactory(pcepVersion);
+    }
+
+    @Override
+    public boolean isHandshakeComplete() {
+        return isHandShakeComplete;
+    }
+
+    @Override
+    public final void setAgent(PcepAgent ag) {
+        if (this.agent == null) {
+            this.agent = ag;
+        }
+    }
+
+    @Override
+    public boolean isOptical() {
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("channel", channelId())
+                .add("pccId", getPccId())
+                .toString();
+    }
+}

+/*
+ * 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.pcep.controller.impl;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.frame.FrameDecoder;
+import org.onosproject.pcepio.protocol.PcepFactories;
+import org.onosproject.pcepio.protocol.PcepMessage;
+import org.onosproject.pcepio.protocol.PcepMessageReader;
+import org.onosproject.pcepio.util.HexDump;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Decode an pcep message from a Channel, for use in a netty pipeline.
+ */
+public class PcepMessageDecoder extends FrameDecoder {
+
+    protected static final Logger log = LoggerFactory.getLogger(PcepMessageDecoder.class);
+
+    @Override
+    protected Object decode(ChannelHandlerContext ctx, Channel channel,
+            ChannelBuffer buffer) throws Exception {
+        log.debug("Message received.");
+        if (!channel.isConnected()) {
+            log.info("Channel is not connected.");
+            // In testing, I see decode being called AFTER decode last.
+            // This check avoids that from reading corrupted frames
+            return null;
+        }
+
+        HexDump.pcepHexDump(buffer);
+
+        // Note that a single call to decode results in reading a single
+        // PcepMessage from the channel buffer, which is passed on to, and processed
+        // by, the controller (in PcepChannelHandler).
+        // This is different from earlier behavior (with the original pcepIO),
+        // where we parsed all the messages in the buffer, before passing on
+        // a list of the parsed messages to the controller.
+        // The performance *may or may not* not be as good as before.
+        PcepMessageReader<PcepMessage> reader = PcepFactories.getGenericReader();
+        List<PcepMessage> msgList = new LinkedList<PcepMessage>();
+
+        while (buffer.readableBytes() > 0) {
+            PcepMessage message = reader.readFrom(buffer);
+            msgList.add(message);
+        }
+        return msgList;
+    }
+}

+/*
+ * 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.pcep.controller.impl;
+
+import java.util.List;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.oneone.OneToOneEncoder;
+import org.onosproject.pcepio.protocol.PcepMessage;
+import org.onosproject.pcepio.util.HexDump;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Encode an pcep message for output into a ChannelBuffer, for use in a
+ * netty pipeline.
+ */
+public class PcepMessageEncoder extends OneToOneEncoder {
+    protected static final Logger log = LoggerFactory.getLogger(PcepMessageEncoder.class);
+
+    @Override
+    protected Object encode(ChannelHandlerContext ctx, Channel channel, Object msg) throws Exception {
+        log.debug("Sending message");
+        if (!(msg instanceof List)) {
+            log.debug("Invalid msg.");
+            return msg;
+        }
+
+        @SuppressWarnings("unchecked")
+        List<PcepMessage> msglist = (List<PcepMessage>) msg;
+
+        ChannelBuffer buf = ChannelBuffers.dynamicBuffer();
+
+        for (PcepMessage pm : msglist) {
+            pm.writeTo(buf);
+        }
+
+        HexDump.pcepHexDump(buf);
+
+        return buf;
+    }
+}

+/*
+ * 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.pcep.controller.impl;
+
+
+import org.onosproject.pcep.controller.PcepPacketStats;
+/**
+ * A representation of a packet context which allows any provider
+ * to view a packet in event, but may block the response to the
+ * event if blocked has been called. This packet context can be used
+ * to react to the packet in event with a packet out.
+ */
+public class PcepPacketStatsImpl implements PcepPacketStats {
+
+    private int inPacketCount;
+    private int outPacketCount;
+    private int wrongPacketCount;
+    private long time;
+
+    public PcepPacketStatsImpl() {
+        this.inPacketCount = 0;
+        this.outPacketCount = 0;
+        this.wrongPacketCount = 0;
+        this.time = 0;
+    }
+
+    @Override
+    public int outPacketCount() {
+        return outPacketCount;
+    }
+
+    @Override
+    public int inPacketCount() {
+        return inPacketCount;
+    }
+
+    @Override
+    public int wrongPacketCount() {
+        return wrongPacketCount;
+    }
+
+    /**
+     * Increments the received packet counter.
+     */
+    public void addInPacket() {
+        this.inPacketCount++;
+    }
+
+    /**
+     * Increments the sent packet counter.
+     */
+    public void addOutPacket() {
+        this.outPacketCount++;
+    }
+
+    /**
+     * Increments the sent packet counter by specified value.
+     *
+     * @param value of no of packets sent
+     */
+    public void addOutPacket(int value) {
+        this.outPacketCount = this.outPacketCount + value;
+    }
+
+    /**
+     * Increments the wrong packet counter.
+     */
+    public void addWrongPacket() {
+        this.wrongPacketCount++;
+    }
+
+    public void resetWrongPacket() {
+        this.wrongPacketCount = 0;
+    }
+
+    @Override
+    public long getTime() {
+        return this.time;
+    }
+
+    /**
+     * Sets the time value.
+     *
+     * @param time long value of time
+     */
+    public void setTime(long time) {
+        this.time = time;
+    }
+}

+/*
+ * 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.pcep.controller.impl;
+
+import org.jboss.netty.channel.ChannelPipeline;
+import org.jboss.netty.channel.ChannelPipelineFactory;
+import org.jboss.netty.channel.Channels;
+import org.jboss.netty.handler.timeout.IdleStateHandler;
+import org.jboss.netty.handler.timeout.ReadTimeoutHandler;
+import org.jboss.netty.util.ExternalResourceReleasable;
+import org.jboss.netty.util.HashedWheelTimer;
+import org.jboss.netty.util.Timer;
+
+/**
+ * Creates a ChannelPipeline for a server-side pcep channel.
+ */
+public class PcepPipelineFactory
+    implements ChannelPipelineFactory, ExternalResourceReleasable {
+
+    protected Controller controller;
+    static final Timer TIMER = new HashedWheelTimer();
+    protected IdleStateHandler idleHandler;
+    protected ReadTimeoutHandler readTimeoutHandler;
+    static final int DEFAULT_KEEP_ALIVE_TIME = 30;
+    static final int DEFAULT_DEAD_TIME = 120;
+    static final int DEFAULT_WAIT_TIME = 60;
+
+    public PcepPipelineFactory(Controller controller) {
+        super();
+        this.controller = controller;
+        this.idleHandler = new IdleStateHandler(TIMER, DEFAULT_DEAD_TIME, DEFAULT_KEEP_ALIVE_TIME, 0);
+        this.readTimeoutHandler = new ReadTimeoutHandler(TIMER, DEFAULT_WAIT_TIME);
+    }
+
+    @Override
+    public ChannelPipeline getPipeline() throws Exception {
+        PcepChannelHandler handler = new PcepChannelHandler(controller);
+
+        ChannelPipeline pipeline = Channels.pipeline();
+        pipeline.addLast("pcepmessagedecoder", new PcepMessageDecoder());
+        pipeline.addLast("pcepmessageencoder", new PcepMessageEncoder());
+        pipeline.addLast("idle", idleHandler);
+        pipeline.addLast("waittimeout", readTimeoutHandler);
+        pipeline.addLast("handler", handler);
+        return pipeline;
+    }
+
+    @Override
+    public void releaseExternalResources() {
+        TIMER.stop();
+    }
+}

+/*
+ * 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.
+ */
+
+/**
+ * Implementation of the PCEP controller subsystem.
+ */
+package org.onosproject.pcep.controller.impl;

+package org.onosproject.pcepio.util;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class HexDump {
+    protected static final Logger log = LoggerFactory.getLogger(HexDump.class);
+
+    private HexDump() {
+    }
+
+    public static void pcepHexDump(ChannelBuffer buff) {
+
+        log.debug("==================== HEX DUMP ======================");
+        try {
+            byte[] yTemp;
+            yTemp = buff.array();
+
+            int iStartIndex = buff.readerIndex();
+            int iEndIndex = buff.writerIndex();
+            do {
+                StringBuilder sb = new StringBuilder();
+                for (int k = 0; (k < 16) && (iStartIndex < iEndIndex); ++k) {
+                    if (0 == k % 4) {
+                        sb.append(String.format(" ")); //blank after 4 bytes
+                    }
+                    sb.append(String.format("%02X ", yTemp[iStartIndex++]));
+                }
+                log.debug(sb.toString());
+            } while (iStartIndex < iEndIndex);
+        } catch (Exception e) {
+            log.error("[HexDump] Invalid buffer: " + e.toString());
+        }
+
+        log.debug("===================================================");
+    }
+}

@@ -33,6 +33,7 @@
 
 
     <modules>
     <modules>
         <module>api</module>
         <module>api</module>
+        <module>ctl</module>
         <module>pcepio</module>
         <module>pcepio</module>
     </modules>
     </modules>