[ONOS-4163] Add tunnel service API

Change-Id: I5b0f862731cd62e2f977bee809eaf75bc22d83d0
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
index 7444efd..10be5f5 100644
--- 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
@@ -25,9 +25,11 @@
 import org.onosproject.incubator.net.tunnel.TunnelSubscription;
 import org.onosproject.net.Annotations;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.ElementId;
 
 import java.util.Collection;
 import java.util.Collections;
+import org.onosproject.net.Path;
 
 public class TunnelServiceAdapter implements TunnelService {
     @Override
@@ -54,6 +56,16 @@
     }
 
     @Override
+    public TunnelId setupTunnel(ApplicationId producerId, ElementId srcElementId, Tunnel tunnel, Path path) {
+        return null;
+    }
+
+    @Override
+    public boolean downTunnel(ApplicationId producerId, TunnelId tunnelId) {
+        return false;
+    }
+
+    @Override
     public boolean returnTunnel(ApplicationId consumerId, TunnelId tunnelId, Annotations... annotations) {
         return false;
     }