[ONOS-4227] Port chain updated to store classifier and forwarder devices

Change-Id: Ibd772e8d524efbe8fc9a11e5091b5510a57e4f66
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/DefaultPortChain.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/DefaultPortChain.java
index c454635..879c7ea 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/DefaultPortChain.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/DefaultPortChain.java
@@ -26,6 +26,8 @@
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
+import org.onosproject.net.DeviceId;
+
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 
@@ -43,7 +45,8 @@
 
     private final Map<FiveTuple, LoadBalanceId> sfcLoadBalanceIdMap = new ConcurrentHashMap<>();
     private final Map<LoadBalanceId, List<PortPairId>> sfcLoadBalancePathMap = new ConcurrentHashMap<>();
-
+    private final Map<LoadBalanceId, List<DeviceId>> sfcClassifiersMap = new ConcurrentHashMap<>();
+    private final Map<LoadBalanceId, List<DeviceId>> sfcForwardersMap = new ConcurrentHashMap<>();
     /**
      * Default constructor to create port chain.
      *
@@ -122,6 +125,40 @@
     }
 
     @Override
+    public void addSfcClassifiers(LoadBalanceId id, List<DeviceId> classifierList) {
+        this.sfcClassifiersMap.put(id, classifierList);
+    }
+
+    @Override
+    public void addSfcForwarders(LoadBalanceId id, List<DeviceId> forwarderList) {
+        this.sfcForwardersMap.put(id, forwarderList);
+    }
+
+    @Override
+    public void removeSfcClassifiers(LoadBalanceId id, List<DeviceId> classifierList) {
+        List<DeviceId> list = getSfcClassifiers(id);
+        list.removeAll(classifierList);
+        this.sfcForwardersMap.put(id, list);
+    }
+
+    @Override
+    public void removeSfcForwarders(LoadBalanceId id, List<DeviceId> forwarderList) {
+        List<DeviceId> list = getSfcForwarders(id);
+        list.removeAll(forwarderList);
+        this.sfcForwardersMap.put(id, list);
+    }
+
+    @Override
+    public List<DeviceId> getSfcClassifiers(LoadBalanceId id) {
+        return ImmutableList.copyOf(this.sfcClassifiersMap.get(id));
+    }
+
+    @Override
+    public List<DeviceId> getSfcForwarders(LoadBalanceId id) {
+        return ImmutableList.copyOf(this.sfcForwardersMap.get(id));
+    }
+
+    @Override
     public LoadBalanceId getLoadBalanceId(FiveTuple fiveTuple) {
         return this.sfcLoadBalanceIdMap.get(fiveTuple);
     }
@@ -132,6 +169,11 @@
     }
 
     @Override
+    public Set<LoadBalanceId> getLoadBalancePathMapKeys() {
+        return ImmutableSet.copyOf(sfcLoadBalancePathMap.keySet());
+    }
+
+    @Override
     public List<PortPairId> getLoadBalancePath(LoadBalanceId id) {
         return ImmutableList.copyOf(this.sfcLoadBalancePathMap.get(id));
     }