BGP Controller test

Change-Id: I4bdafeec877d5fbfa79306717cf3033936e0fe59
diff --git a/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BGPControllerImpl.java b/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BGPControllerImpl.java
index 35c31ab..042e2da 100755
--- a/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BGPControllerImpl.java
+++ b/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BGPControllerImpl.java
@@ -204,6 +204,15 @@
 
     }
 
+    /**
+     * Returns controller.
+     *
+     * @return controller
+     */
+    public Controller controller() {
+        return this.ctrl;
+    }
+
     @Override
     public ConcurrentHashMap<BGPId, BGPPeer> connectedPeers() {
         return connectedPeers;