opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataChangeListenerRegistration.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.PoisonPill;
  12 import akka.actor.Props;
  13 import akka.japi.Creator;
  14 import org.opendaylight.controller.cluster.datastore.messages.CloseDataChangeListenerRegistration;
  15 import org.opendaylight.controller.cluster.datastore.messages.CloseDataChangeListenerRegistrationReply;
  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 public class DataChangeListenerRegistration extends AbstractUntypedActor {
  21
  22     private final org.opendaylight.yangtools.concepts.ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
  23         registration;
  24
  25     public DataChangeListenerRegistration(
  26         org.opendaylight.yangtools.concepts.ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> registration) {
  27         this.registration = registration;
  28     }
  29
  30     @Override
  31     public void handleReceive(Object message) throws Exception {
  32         if (message.getClass().equals(CloseDataChangeListenerRegistration.SERIALIZABLE_CLASS)) {
  33             closeListenerRegistration(
  34                 new CloseDataChangeListenerRegistration());
  35         }
  36     }
  37
  38     public static Props props(
  39         final org.opendaylight.yangtools.concepts.ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> registration) {
  40         return Props.create(new Creator<DataChangeListenerRegistration>() {
  41
  42             @Override
  43             public DataChangeListenerRegistration create() throws Exception {
  44                 return new DataChangeListenerRegistration(registration);
  45             }
  46         });
  47     }
  48
  49     private void closeListenerRegistration(
  50         CloseDataChangeListenerRegistration message) {
  51         registration.close();
  52         getSender()
  53             .tell(new CloseDataChangeListenerRegistrationReply().toSerializable(), getSelf());
  54         getSelf().tell(PoisonPill.getInstance(), getSelf());
  55     }
  56 }