opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataChangeListenerProxy.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.cluster.datastore;
  10
  11 import akka.actor.ActorRef;
  12 import akka.actor.ActorSelection;
  13 import com.google.common.base.Preconditions;
  14 import org.opendaylight.controller.cluster.datastore.messages.DataChanged;
  15 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
  17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  18 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  19
  20 /**
  21  * DataChangeListenerProxy represents a single remote DataChangeListener
  22  */
  23 public class DataChangeListenerProxy implements AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>{
  24     private final ActorSelection dataChangeListenerActor;
  25
  26     public DataChangeListenerProxy(ActorSelection dataChangeListenerActor) {
  27         this.dataChangeListenerActor = Preconditions.checkNotNull(dataChangeListenerActor,
  28                 "dataChangeListenerActor should not be null");
  29     }
  30
  31     @Override
  32     public void onDataChanged(
  33         AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
  34         dataChangeListenerActor.tell(new DataChanged(change), ActorRef.noSender());
  35     }
  36 }