[ONOS-2365]Unit test for PcepTunnelProvider

Change-Id: I2903756913225acf43b324da90faa76bd41b6533
diff --git a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepClientControllerAdapter.java b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepClientControllerAdapter.java
new file mode 100644
index 0000000..74aa590
--- /dev/null
+++ b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepClientControllerAdapter.java
@@ -0,0 +1,189 @@
+package org.onosproject.provider.pcep.tunnel.impl;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.onlab.packet.IpAddress;
+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.onosproject.pcepio.protocol.PcepVersion;
+
+import com.google.common.collect.Sets;
+
+public class PcepClientControllerAdapter implements PcepClientController {
+
+    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();
+
+    @Activate
+    public void activate() {
+    }
+
+    @Deactivate
+    public void deactivate() {
+    }
+
+    @Override
+    public Collection<PcepClient> getClients() {
+        return connectedClients.values();
+    }
+
+    @Override
+    public PcepClient getClient(PccId pccId) {
+        //return connectedClients.get(pccIpAddress);
+        PcepClientAdapter pc = new PcepClientAdapter();
+        pc.init(PccId.pccId(IpAddress.valueOf(0xac000001)), PcepVersion.PCEP_1);
+        return pc;
+    }
+
+    @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:
+            //log.debug("Sending Keep Alive Message  to {" + pccIpAddress.toString() + "}");
+            pc.sendMessage(Collections.singletonList(pc.factory().buildKeepaliveMsg().build()));
+            break;
+        case PATH_COMPUTATION_REQUEST:
+            break;
+        case PATH_COMPUTATION_REPLY:
+            break;
+        case NOTIFICATION:
+            break;
+        case ERROR:
+            break;
+        case CLOSE:
+            //log.debug("Sending Close Message  to { }", pccIpAddress.toString());
+            pc.sendMessage(Collections.singletonList(pc.factory().buildCloseMsg().build()));
+            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 {
+
+        @Override
+        public boolean addConnectedClient(PccId pccId, PcepClient pc) {
+
+            if (connectedClients.get(pccId) != null) {
+                return false;
+            } else {
+                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 switches: pccIp {}. Aborting ..", pccIpAddress.toString());
+                return false;
+            }
+
+            return true;
+        }
+
+        @Override
+        public void removeConnectedClient(PccId pccId) {
+            connectedClients.remove(pccId);
+            for (PcepClientListener l : pcepClientListener) {
+                //log.warn("removal for {}", pccIpAddress.toString());
+                l.clientDisconnected(pccId);
+            }
+        }
+
+        @Override
+        public void processPcepMessage(PccId pccId, PcepMessage m) {
+            processClientMessage(pccId, m);
+        }
+    }
+
+}