[ONOS-2233] Implement of Tunnel monitoring, measurement and observation
1. add a tunnel statistics interface.
2. add a pcep tunnel statistics interface.
3. add a tunnelStatsCollector to poll statistic request ,The polling interval can be configurable.
4. extend the pcepTunnelProvider to handle tunnel statistic message

Change-Id: I1187d586a1833ca4bee55529a65cd61eff0e612d
diff --git a/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepController.java b/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepController.java
index 5b181c3..a14dcd1 100644
--- a/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepController.java
+++ b/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepController.java
@@ -112,4 +112,11 @@
      */
     Boolean updateTunnelBandwidth(String id, long bandwidth);
 
+    /**
+     * Send statistic request by tunnel id.
+     *
+     * @param pcepTunnelId PCEP tunnel id
+     */
+    void getTunnelStatistics(String pcepTunnelId);
+
 }
diff --git a/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepTunnelListener.java b/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepTunnelListener.java
index 2c974a4..8b64b92 100644
--- a/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepTunnelListener.java
+++ b/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepTunnelListener.java
@@ -28,4 +28,13 @@
      */
     void handlePCEPTunnel(PcepTunnel tunnel);
 
+    /**
+     * Notify that get a tunnel statistic data from the network.
+     *
+     * @param tunnelStatistics tunnel statistic information.
+     */
+    void handlePcepTunnelStatistics(PcepTunnelStatistics tunnelStatistics);
+
+
+
 }
diff --git a/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepTunnelStatistics.java b/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepTunnelStatistics.java
new file mode 100644
index 0000000..20ed00e
--- /dev/null
+++ b/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepTunnelStatistics.java
@@ -0,0 +1,65 @@
+/*
+ *
+ *  * 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.api;
+
+import java.time.Duration;
+import java.util.List;
+
+/**
+ * Statistics of a PCEP tunnel.
+ */
+public interface PcepTunnelStatistics {
+
+
+    /**
+     * Returns the id of PCEP tunnel.
+     *
+     * @return PCEP tunnel id
+     */
+    long id();
+
+
+    /**
+     * Returns the bandwidth utilization of a PCEP tunnel.
+     *
+     * @return PCEP bandwidth utilization
+     */
+    double bandwidthUtilization();
+
+    /**
+     * Returns the flow loss rate of a tunnel.
+     *
+     * @return tunnel flow loss rate
+     */
+    double packetLossRate();
+
+    /**
+     * Returns the end-to-end traffic flow delay of a tunnel.
+     *
+     * @return tunnel traffic flow delay
+     */
+    Duration flowDelay();
+
+    /**
+     * Returns the alarms on a tunnel.
+     *
+     * @return tunnel alarms
+     */
+    List<String> alarms();
+}
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/DefaultTunnelStatistics.java b/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/DefaultTunnelStatistics.java
new file mode 100644
index 0000000..6358ca9
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/DefaultTunnelStatistics.java
@@ -0,0 +1,168 @@
+/*
+ *
+ *  * 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.incubator.net.tunnel;
+
+import java.time.Duration;
+import java.util.List;
+
+/**
+ * Default implementation of immutable tunnel statistics.
+ */
+public final class DefaultTunnelStatistics implements TunnelStatistics {
+    private final TunnelId tunnelId;
+    private final double bwUtilization;
+    private final double packetLossRatio;
+    private final Duration flowDelay;
+    private final List<String> alarms;
+
+    private DefaultTunnelStatistics(TunnelId tunnelId,
+                                    double bwUtilization,
+                                    double packetLossRatio,
+                                    Duration flowDelay,
+                                    List<String> alarms) {
+        this.tunnelId = tunnelId;
+        this.bwUtilization = bwUtilization;
+        this.packetLossRatio = packetLossRatio;
+        this.flowDelay = flowDelay;
+        this.alarms = alarms;
+    }
+
+    private DefaultTunnelStatistics() {
+        this.tunnelId = null;
+        this.bwUtilization = 0;
+        this.packetLossRatio = 0;
+        this.flowDelay = null;
+        this.alarms = null;
+    }
+
+
+    @Override
+    public TunnelId id() {
+        return this.tunnelId;
+    }
+
+    @Override
+    public double bandwidthUtilization() {
+        return this.bwUtilization;
+    }
+
+    @Override
+    public double packetLossRate() {
+        return this.packetLossRatio;
+    }
+
+    @Override
+    public Duration flowDelay() {
+        return this.flowDelay;
+    }
+
+
+    @Override
+    public List<String> alarms() {
+        return this.alarms;
+    }
+
+    /**
+     * Builder for tunnelStatistics.
+     */
+    public static final class Builder {
+        TunnelId tunnelId;
+        double bwUtilization;
+        double packetLossRatio;
+        Duration flowDelay;
+        List<String> alarms;
+
+        public Builder() {
+
+        }
+
+        /**
+         * Set tunnel id.
+         *
+         * @param tunnelId tunnel id
+         * @return builder object
+         */
+        public Builder setTunnelId(TunnelId tunnelId) {
+            this.tunnelId = tunnelId;
+
+            return this;
+        }
+
+        /**
+         * set bandwidth utilization.
+         *
+         * @param bwUtilization bandwidth utilization
+         * @return builder object
+         */
+        public Builder setBwUtilization(double bwUtilization) {
+            this.bwUtilization = bwUtilization;
+
+            return this;
+        }
+
+        /**
+         * Set packet loss ratio.
+         *
+         * @param packetLossRatio packet loss ratio
+         * @return builder object
+         */
+        public Builder setPacketLossRatio(double packetLossRatio) {
+            this.packetLossRatio = packetLossRatio;
+
+            return this;
+        }
+
+        /**
+         * Set flow delay.
+         *
+         * @param flowDelay flow delay
+         * @return builder object
+         */
+        public Builder setFlowDelay(Duration flowDelay) {
+            this.flowDelay = flowDelay;
+
+            return this;
+        }
+
+        /**
+         * Set alarms.
+         *
+         * @param alarms alarms of a tunnel
+         * @return builder object
+         */
+        public Builder setAlarms(List<String> alarms) {
+            this.alarms = alarms;
+
+            return this;
+        }
+
+        /**
+         * Creates a TunnelStatistics object.
+         *
+         * @return DefaultTunnelStatistics
+         */
+        public DefaultTunnelStatistics build() {
+            return new DefaultTunnelStatistics(tunnelId,
+                                               bwUtilization,
+                                               packetLossRatio,
+                                               flowDelay,
+                                               alarms);
+        }
+    }
+}
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/TunnelStatistics.java b/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/TunnelStatistics.java
index 61c77d7..650f994 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/TunnelStatistics.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/TunnelStatistics.java
@@ -41,7 +41,7 @@
     double bandwidthUtilization();
 
     /**
-     * Returns the packet loss rate of a tunnel.
+     * Returns the packet loss ratio of a tunnel.
      *
      * @return tunnel packet loss ratio
      */
diff --git a/providers/pcep/tunnel/pom.xml b/providers/pcep/tunnel/pom.xml
index ac9a17f..09efb8a 100644
--- a/providers/pcep/tunnel/pom.xml
+++ b/providers/pcep/tunnel/pom.xml
@@ -19,5 +19,21 @@
             <groupId>org.onosproject</groupId>
             <artifactId>onos-pcep-controller-api</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.compendium</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-api</artifactId>
+            <classifier>tests</classifier>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-incubator-net</artifactId>
+            <version>${project.version} </version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>
\ No newline at end of file
diff --git a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
index 152a388..648e500 100644
--- a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
+++ b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
@@ -16,7 +16,9 @@
 package org.onosproject.provider.pcep.tunnel.impl;
 
 import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Strings.isNullOrEmpty;
 import static org.onosproject.net.DefaultAnnotations.EMPTY;
+import static org.onlab.util.Tools.get;
 import static org.onosproject.net.DeviceId.deviceId;
 import static org.onosproject.net.PortNumber.portNumber;
 import static org.onosproject.pcep.api.PcepDpid.uri;
@@ -24,24 +26,29 @@
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.Dictionary;
 import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.ListIterator;
 import java.util.Optional;
 
+import com.google.common.collect.Maps;
 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.Property;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
+import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.DefaultGroupId;
 import org.onosproject.incubator.net.tunnel.DefaultOpticalTunnelEndPoint;
 import org.onosproject.incubator.net.tunnel.DefaultTunnel;
 import org.onosproject.incubator.net.tunnel.DefaultTunnelDescription;
 import org.onosproject.incubator.net.tunnel.IpTunnelEndPoint;
+import org.onosproject.incubator.net.tunnel.DefaultTunnelStatistics;
 import org.onosproject.incubator.net.tunnel.OpticalLogicId;
 import org.onosproject.incubator.net.tunnel.OpticalTunnelEndPoint;
 import org.onosproject.incubator.net.tunnel.Tunnel;
@@ -52,6 +59,8 @@
 import org.onosproject.incubator.net.tunnel.TunnelProvider;
 import org.onosproject.incubator.net.tunnel.TunnelProviderRegistry;
 import org.onosproject.incubator.net.tunnel.TunnelProviderService;
+import org.onosproject.incubator.net.tunnel.TunnelService;
+import org.onosproject.incubator.net.tunnel.TunnelStatistics;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.DefaultAnnotations;
 import org.onosproject.net.DefaultLink;
@@ -73,6 +82,8 @@
 import org.onosproject.pcep.api.PcepTunnel.PATHTYPE;
 import org.onosproject.pcep.api.PcepTunnel.PathState;
 import org.onosproject.pcep.api.PcepTunnelListener;
+import org.onosproject.pcep.api.PcepTunnelStatistics;
+import org.osgi.service.component.annotations.Modified;
 import org.onosproject.pcep.controller.PccId;
 import org.onosproject.pcep.controller.PcepClient;
 import org.onosproject.pcep.controller.PcepClientController;
@@ -99,8 +110,7 @@
 import org.onosproject.pcepio.types.StatefulIPv4LspIdentidiersTlv;
 import org.onosproject.pcepio.types.SymbolicPathNameTlv;
 import org.slf4j.Logger;
-
-import static org.onosproject.pcep.api.PcepDpid.*;
+import org.osgi.service.component.ComponentContext;
 
 /**
  * Provider which uses an PCEP controller to detect, update, create network
@@ -116,6 +126,11 @@
     private static final String BANDWIDTH_UINT = "kbps";
     static final String PROVIDER_ID = "org.onosproject.provider.tunnel.pcep";
 
+    static final int POLL_INTERVAL = 10;
+    @Property(name = "tunnelStatsPollFrequency", intValue = POLL_INTERVAL,
+            label = "Frequency (in seconds) for polling tunnel statistics")
+    private int tunnelStatsPollFrequency = POLL_INTERVAL;
+
     private static final String TUNNLE_NOT_NULL = "Create failed,The given port may be wrong or has been occupied.";
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
@@ -126,9 +141,18 @@
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected PcepClientController pcepClientController;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected TunnelService tunnelService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ComponentConfigService cfgService;
+
     TunnelProviderService service;
 
     HashMap<String, TunnelId> tunnelMap = new HashMap<String, TunnelId>();
+    HashMap<TunnelId, TunnelStatistics> tunnelStatisticsMap = new HashMap<>();
+    private HashMap<Long, TunnelStatsCollector> collectors = Maps.newHashMap();
 
     private InnerTunnelProvider listener = new InnerTunnelProvider();
 
@@ -144,10 +168,19 @@
 
     @Activate
     public void activate() {
+        cfgService.registerProperties(getClass());
         service = tunnelProviderRegistry.register(this);
         controller.addTunnelListener(listener);
         pcepClientController.addListener(listener);
         pcepClientController.addEventListener(listener);
+        tunnelService.queryAllTunnels().forEach(tunnel -> {
+            String pcepTunnelId = getPCEPTunnelKey(tunnel.tunnelId());
+            TunnelStatsCollector tsc = new TunnelStatsCollector(pcepTunnelId, tunnelStatsPollFrequency);
+            tsc.start();
+            collectors.put(tunnel.tunnelId().id(), tsc);
+
+        });
+
         log.info("Started");
     }
 
@@ -155,10 +188,31 @@
     public void deactivate() {
         tunnelProviderRegistry.unregister(this);
         controller.removeTunnelListener(listener);
+        collectors.values().forEach(TunnelStatsCollector::stop);
         pcepClientController.removeListener(listener);
         log.info("Stopped");
     }
 
+    @Modified
+    public void modified(ComponentContext context) {
+        Dictionary<?, ?> properties = context.getProperties();
+        int newTunnelStatsPollFrequency;
+        try {
+            String s = get(properties, "tunnelStatsPollFrequency");
+            newTunnelStatsPollFrequency = isNullOrEmpty(s) ? tunnelStatsPollFrequency : Integer.parseInt(s.trim());
+
+        } catch (NumberFormatException | ClassCastException e) {
+            newTunnelStatsPollFrequency = tunnelStatsPollFrequency;
+        }
+
+        if (newTunnelStatsPollFrequency != tunnelStatsPollFrequency) {
+            tunnelStatsPollFrequency = newTunnelStatsPollFrequency;
+            collectors.values().forEach(tsc -> tsc.adjustPollInterval(tunnelStatsPollFrequency));
+            log.info("New setting: tunnelStatsPollFrequency={}", tunnelStatsPollFrequency);
+        }
+
+    }
+
     @Override
     public void setupTunnel(Tunnel tunnel, Path path) {
         if (tunnel.type() != Tunnel.Type.MPLS) {
@@ -177,7 +231,7 @@
 
         if (!(pc instanceof PcepClient)) {
             log.error("There is no PCC connected with ip addresss {}"
-                    + ((IpTunnelEndPoint) tunnel.src()).ip().toString());
+                              + ((IpTunnelEndPoint) tunnel.src()).ip().toString());
             return;
         }
         pcepSetupTunnel(tunnel, path, pc);
@@ -581,6 +635,21 @@
     }
 
     /**
+     * Build a DefaultTunnelStatistics from a PcepTunnelStatistics.
+     *
+     * @param statistics statistics data from a PCEP tunnel
+     * @return TunnelStatistics
+     */
+    private TunnelStatistics buildTunnelStatistics(PcepTunnelStatistics statistics) {
+        DefaultTunnelStatistics.Builder builder = new DefaultTunnelStatistics.Builder();
+        DefaultTunnelStatistics tunnelStatistics =  builder.setBwUtilization(statistics.bandwidthUtilization())
+                    .setPacketLossRatio(statistics.packetLossRate())
+                    .setFlowDelay(statistics.flowDelay())
+                    .setAlarms(statistics.alarms())
+                .build();
+        return tunnelStatistics;
+   }
+    /**
      * Creates list of hops for ERO object from Path.
      *
      * @param path network path
@@ -844,6 +913,8 @@
         }
     }
 
+
+
     private class InnerTunnelProvider implements PcepTunnelListener, PcepEventListener, PcepClientListener {
 
         @Override
@@ -1141,6 +1212,15 @@
         public void clientDisconnected(PccId pccId) {
             // TODO
         }
+
+
+
+        @Override
+        public void handlePcepTunnelStatistics(PcepTunnelStatistics pcepTunnelStatistics) {
+            TunnelId id = getTunnelId(String.valueOf(pcepTunnelStatistics.id()));
+            TunnelStatistics tunnelStatistics = buildTunnelStatistics(pcepTunnelStatistics);
+            tunnelStatisticsMap.put(id, tunnelStatistics);
+        }
     }
 
     @Override
diff --git a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/TunnelStatsCollector.java b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/TunnelStatsCollector.java
new file mode 100644
index 0000000..39249c5
--- /dev/null
+++ b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/TunnelStatsCollector.java
@@ -0,0 +1,104 @@
+/*
+ *
+ *  * Copyright 2014-2015 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.provider.pcep.tunnel.impl;
+
+
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.jboss.netty.util.HashedWheelTimer;
+import org.jboss.netty.util.Timeout;
+import org.jboss.netty.util.TimerTask;
+import org.onlab.util.Timer;
+import org.onosproject.pcep.api.PcepController;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.TimeUnit;
+
+/*
+ * Sends Stats Request and collect the tunnel statistics with a time interval.
+ */
+public class TunnelStatsCollector implements TimerTask {
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected PcepController controller;
+
+    private int refreshInterval;
+    private final HashedWheelTimer timer = Timer.getTimer();
+
+    private String pcepTunnelId;
+    private Timeout timeout;
+    private volatile boolean stopped;
+
+
+    /**
+     * Greate a tunnel status collector object.
+     *
+     * @param id              tunnel whose status data will be collected
+     * @param refreshInterval time interval for collecting statistic
+     */
+    public TunnelStatsCollector(String id, int refreshInterval) {
+        this.pcepTunnelId = id;
+        this.refreshInterval = refreshInterval;
+    }
+
+    @Override
+    public void run(Timeout timeout) throws Exception {
+        if (stopped || timeout.isCancelled()) {
+            return;
+        }
+        log.trace("Collecting stats for {}", pcepTunnelId);
+
+        sendTunnelStatistic();
+        if (!stopped && !timeout.isCancelled()) {
+            log.trace("Scheduling stats collection in {} seconds for {}",
+                      this.refreshInterval, pcepTunnelId);
+            timeout.getTimer().newTimeout(this, refreshInterval, TimeUnit.SECONDS);
+        }
+
+    }
+
+    private void sendTunnelStatistic() {
+        controller.getTunnelStatistics(pcepTunnelId);
+
+    }
+
+    synchronized void adjustPollInterval(int pollInterval) {
+        this.refreshInterval = pollInterval;
+    }
+
+    /**
+     * Starts the collector.
+     */
+    public synchronized void start() {
+        log.info("Starting Tunnel Stats collection thread for {}", pcepTunnelId);
+        stopped = false;
+        timeout = timer.newTimeout(this, 1, TimeUnit.SECONDS);
+    }
+
+    /**
+     * Stops the collector.
+     */
+    public synchronized void stop() {
+        log.info("Stopping Tunnel Stats collection thread for {}", pcepTunnelId);
+        stopped = true;
+        timeout.cancel();
+    }
+}
diff --git a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepControllerAdapter.java b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepControllerAdapter.java
index 6aa81f7..6526611 100644
--- a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepControllerAdapter.java
+++ b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepControllerAdapter.java
@@ -77,4 +77,9 @@
     public Boolean updateTunnelBandwidth(String id, long bandwidth) {
         return null;
     }
+
+    @Override
+    public void getTunnelStatistics(String pcepTunnelId) {
+
+    }
 }
diff --git a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepReleaseTunnelProviderTest.java b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepReleaseTunnelProviderTest.java
index c728aad..e386138 100644
--- a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepReleaseTunnelProviderTest.java
+++ b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepReleaseTunnelProviderTest.java
@@ -24,6 +24,7 @@
 import org.junit.After;
 import org.junit.Test;
 import org.onlab.packet.IpAddress;
+import org.onosproject.cfg.ComponentConfigAdapter;
 import org.onosproject.core.DefaultGroupId;
 import org.onosproject.incubator.net.tunnel.DefaultTunnel;
 import org.onosproject.incubator.net.tunnel.IpTunnelEndPoint;
@@ -49,13 +50,16 @@
     private final PcepClientControllerAdapter controller = new PcepClientControllerAdapter();
     private final PcepControllerAdapter ctl = new PcepControllerAdapter();
     private final PcepTunnelApiMapper pcepTunnelAPIMapper = new PcepTunnelApiMapper();
+    private final TunnelServiceAdapter  tunnelService = new TunnelServiceAdapter();
 
     @Test
     public void testCasePcepReleaseTunnel() {
         tunnelProvider.tunnelProviderRegistry = registry;
         tunnelProvider.pcepClientController = controller;
         tunnelProvider.controller = ctl;
+        tunnelProvider.tunnelService = tunnelService;
         tunnelProvider.pcepTunnelAPIMapper = pcepTunnelAPIMapper;
+        tunnelProvider.cfgService = new ComponentConfigAdapter();
         tunnelProvider.activate();
 
         Tunnel tunnel;
diff --git a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepSetupTunnelProviderTest.java b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepSetupTunnelProviderTest.java
index e419e22..ef4816e 100644
--- a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepSetupTunnelProviderTest.java
+++ b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepSetupTunnelProviderTest.java
@@ -24,6 +24,7 @@
 import org.junit.After;
 import org.junit.Test;
 import org.onlab.packet.IpAddress;
+import org.onosproject.cfg.ComponentConfigAdapter;
 import org.onosproject.core.DefaultGroupId;
 import org.onosproject.incubator.net.tunnel.DefaultTunnel;
 import org.onosproject.incubator.net.tunnel.IpTunnelEndPoint;
@@ -46,6 +47,7 @@
     private final TunnelProviderRegistryAdapter registry = new TunnelProviderRegistryAdapter();
     private final PcepClientControllerAdapter controller = new PcepClientControllerAdapter();
     private final PcepControllerAdapter ctl = new PcepControllerAdapter();
+    private final TunnelServiceAdapter  tunnelService = new TunnelServiceAdapter();
 
     @Test
     public void testCasePcepSetupTunnel() {
@@ -53,6 +55,8 @@
         tunnelProvider.tunnelProviderRegistry = registry;
         tunnelProvider.pcepClientController = controller;
         tunnelProvider.controller = ctl;
+        tunnelProvider.cfgService = new ComponentConfigAdapter();
+        tunnelProvider.tunnelService = tunnelService;
         tunnelProvider.activate();
 
 
diff --git a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProviderTest.java b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProviderTest.java
index 7a61bb2..0fcd144 100644
--- a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProviderTest.java
+++ b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProviderTest.java
@@ -38,6 +38,7 @@
 import org.onosproject.net.Path;
 import org.onosproject.net.PortNumber;
 import org.onosproject.net.provider.ProviderId;
+import org.onosproject.cfg.ComponentConfigAdapter;
 
 public class PcepTunnelProviderTest {
 
@@ -46,6 +47,7 @@
     private final TunnelProviderRegistryAdapter registry = new TunnelProviderRegistryAdapter();
     private final PcepClientControllerAdapter controller = new PcepClientControllerAdapter();
     private final PcepControllerAdapter ctl = new PcepControllerAdapter();
+    private final TunnelServiceAdapter  tunnelService = new TunnelServiceAdapter();
 
     @Test
     public void testCasePcepSetupTunnel() {
@@ -53,6 +55,8 @@
         tunnelProvider.tunnelProviderRegistry = registry;
         tunnelProvider.pcepClientController = controller;
         tunnelProvider.controller = ctl;
+        tunnelProvider.cfgService = new ComponentConfigAdapter();
+        tunnelProvider.tunnelService = tunnelService;
         tunnelProvider.activate();
 
         Tunnel tunnel;
diff --git a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepUpdateTunnelProviderTest.java b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepUpdateTunnelProviderTest.java
index a27ba76..1bcf99d 100644
--- a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepUpdateTunnelProviderTest.java
+++ b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepUpdateTunnelProviderTest.java
@@ -24,6 +24,7 @@
 import org.junit.After;
 import org.junit.Test;
 import org.onlab.packet.IpAddress;
+import org.onosproject.cfg.ComponentConfigAdapter;
 import org.onosproject.core.DefaultGroupId;
 import org.onosproject.incubator.net.tunnel.DefaultTunnel;
 import org.onosproject.incubator.net.tunnel.IpTunnelEndPoint;
@@ -49,6 +50,8 @@
     private final PcepClientControllerAdapter controller = new PcepClientControllerAdapter();
     private final PcepControllerAdapter ctl = new PcepControllerAdapter();
     private final PcepTunnelApiMapper pcepTunnelAPIMapper = new PcepTunnelApiMapper();
+    private final TunnelServiceAdapter  tunnelService = new TunnelServiceAdapter();
+
 
     @Test
     public void testCasePcepUpdateTunnel() {
@@ -56,6 +59,8 @@
         tunnelProvider.pcepClientController = controller;
         tunnelProvider.controller = ctl;
         tunnelProvider.pcepTunnelAPIMapper = pcepTunnelAPIMapper;
+        tunnelProvider.cfgService = new ComponentConfigAdapter();
+        tunnelProvider.tunnelService = tunnelService;
         tunnelProvider.activate();
 
         Tunnel tunnel;
diff --git a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/TunnelServiceAdapter.java b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/TunnelServiceAdapter.java
new file mode 100644
index 0000000..1dd7733
--- /dev/null
+++ b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/TunnelServiceAdapter.java
@@ -0,0 +1,107 @@
+package org.onosproject.provider.pcep.tunnel.impl;
+
+import org.onosproject.core.ApplicationId;
+import org.onosproject.incubator.net.tunnel.Tunnel;
+import org.onosproject.incubator.net.tunnel.TunnelEndPoint;
+import org.onosproject.incubator.net.tunnel.TunnelId;
+import org.onosproject.incubator.net.tunnel.TunnelListener;
+import org.onosproject.incubator.net.tunnel.TunnelName;
+import org.onosproject.incubator.net.tunnel.TunnelService;
+import org.onosproject.incubator.net.tunnel.TunnelSubscription;
+import org.onosproject.net.Annotations;
+import org.onosproject.net.DeviceId;
+
+import java.util.Collection;
+import java.util.Collections;
+
+public class TunnelServiceAdapter implements TunnelService {
+    @Override
+    public Tunnel borrowTunnel(ApplicationId consumerId, TunnelId tunnelId, Annotations... annotations) {
+        return null;
+    }
+
+    @Override
+    public Collection<Tunnel> borrowTunnel(ApplicationId consumerId, TunnelName tunnelName,
+                                           Annotations... annotations) {
+        return null;
+    }
+
+    @Override
+    public Collection<Tunnel> borrowTunnel(ApplicationId consumerId, TunnelEndPoint src, TunnelEndPoint dst,
+                                           Annotations... annotations) {
+        return null;
+    }
+
+    @Override
+    public Collection<Tunnel> borrowTunnel(ApplicationId consumerId, TunnelEndPoint src, TunnelEndPoint dst,
+                                           Tunnel.Type type, Annotations... annotations) {
+        return null;
+    }
+
+    @Override
+    public boolean returnTunnel(ApplicationId consumerId, TunnelId tunnelId, Annotations... annotations) {
+        return false;
+    }
+
+    @Override
+    public boolean returnTunnel(ApplicationId consumerId, TunnelName tunnelName, Annotations... annotations) {
+        return false;
+    }
+
+    @Override
+    public boolean returnTunnel(ApplicationId consumerId, TunnelEndPoint src, TunnelEndPoint dst,
+                                Tunnel.Type type, Annotations... annotations) {
+        return false;
+    }
+
+    @Override
+    public boolean returnTunnel(ApplicationId consumerId, TunnelEndPoint src, TunnelEndPoint dst,
+                                Annotations... annotations) {
+        return false;
+    }
+
+    @Override
+    public Tunnel queryTunnel(TunnelId tunnelId) {
+        return null;
+    }
+
+    @Override
+    public Collection<TunnelSubscription> queryTunnelSubscription(ApplicationId consumerId) {
+        return null;
+    }
+
+    @Override
+    public Collection<Tunnel> queryTunnel(Tunnel.Type type) {
+        return null;
+    }
+
+    @Override
+    public Collection<Tunnel> queryTunnel(TunnelEndPoint src, TunnelEndPoint dst) {
+        return null;
+    }
+
+    @Override
+    public Collection<Tunnel> queryAllTunnels() {
+        return Collections.emptyList();
+    }
+
+    @Override
+    public int tunnelCount() {
+        return 0;
+    }
+
+    @Override
+    public Iterable<Tunnel> getTunnels(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public void addListener(TunnelListener listener) {
+
+    }
+
+    @Override
+    public void removeListener(TunnelListener listener) {
+
+    }
+}