2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.controller.cluster.datastore;
11 import akka.actor.Props;
12 import akka.japi.Creator;
13 import org.opendaylight.controller.cluster.datastore.messages.DataChanged;
14 import org.opendaylight.controller.cluster.datastore.messages.DataChangedReply;
15 import org.opendaylight.controller.cluster.datastore.messages.EnableNotification;
16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
17 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
19 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
20 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
22 public class DataChangeListener extends AbstractUntypedActor {
23 private final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener;
24 private final SchemaContext schemaContext;
25 private final YangInstanceIdentifier pathId;
26 private boolean notificationsEnabled = false;
28 public DataChangeListener(SchemaContext schemaContext,
29 AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener, YangInstanceIdentifier pathId) {
30 this.listener = listener;
31 this.schemaContext = schemaContext;
35 @Override public void handleReceive(Object message) throws Exception {
36 if(message.getClass().equals(DataChanged.SERIALIZABLE_CLASS)){
38 } else if(message instanceof EnableNotification){
39 enableNotification((EnableNotification) message);
43 private void enableNotification(EnableNotification message) {
44 notificationsEnabled = message.isEnabled();
47 public void dataChanged(Object message) {
49 // Do nothing if notifications are not enabled
50 if(!notificationsEnabled){
54 DataChanged reply = DataChanged.fromSerialize(schemaContext,message, pathId);
55 AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>>
56 change = reply.getChange();
57 this.listener.onDataChanged(change);
59 if(getSender() != null){
60 getSender().tell(new DataChangedReply().toSerializable(), getSelf());
64 public static Props props(final SchemaContext schemaContext, final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener, final YangInstanceIdentifier pathId) {
65 return Props.create(new Creator<DataChangeListener>() {
67 public DataChangeListener create() throws Exception {
68 return new DataChangeListener(schemaContext,listener,pathId );