Merge "BUG 1839 - HTTP delete of non existing data"
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / DataChangeListenerProxy.java
index a4ca4562685d4f4b3dc717588d0e35ede957d466..1a0ee8c2fa6866dfdab97cfeab7087ce37d52ca6 100644 (file)
@@ -8,7 +8,9 @@
 
 package org.opendaylight.controller.cluster.datastore;
 
+import akka.actor.ActorRef;
 import akka.actor.ActorSelection;
+import com.google.common.base.Preconditions;
 import org.opendaylight.controller.cluster.datastore.messages.DataChanged;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
@@ -23,13 +25,13 @@ public class DataChangeListenerProxy implements AsyncDataChangeListener<YangInst
     private final ActorSelection dataChangeListenerActor;
     private final SchemaContext schemaContext;
 
-    public DataChangeListenerProxy(SchemaContext schemaContext,ActorSelection dataChangeListenerActor) {
-        this.dataChangeListenerActor = dataChangeListenerActor;
+    public DataChangeListenerProxy(SchemaContext schemaContext, ActorSelection dataChangeListenerActor) {
+        this.dataChangeListenerActor = Preconditions.checkNotNull(dataChangeListenerActor, "dataChangeListenerActor should not be null");
         this.schemaContext = schemaContext;
     }
 
     @Override public void onDataChanged(
         AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
-        dataChangeListenerActor.tell(new DataChanged(schemaContext,change), null);
+        dataChangeListenerActor.tell(new DataChanged(schemaContext, change), ActorRef.noSender());
     }
 }