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
  15 import org.opendaylight.controller.cluster.datastore.messages.CloseDataChangeListenerRegistration;
  16 import org.opendaylight.controller.cluster.datastore.messages.CloseDataChangeListenerRegistrationReply;
  17 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
  18 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  21
  22 public class DataChangeListenerRegistration extends AbstractUntypedActor {
  23
  24     private final ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
  25         registration;
  26
  27     public DataChangeListenerRegistration(
  28         ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> registration) {
  29         this.registration = registration;
  30     }
  31
  32     @Override
  33     public void handleReceive(Object message) throws Exception {
  34         if (message.getClass().equals(CloseDataChangeListenerRegistration.SERIALIZABLE_CLASS)) {
  35             closeListenerRegistration(
  36                 new CloseDataChangeListenerRegistration());
  37         }
  38     }
  39
  40     public static Props props(
  41         final ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> registration) {
  42         return Props.create(new DataChangeListenerRegistrationCreator(registration));
  43     }
  44
  45     private void closeListenerRegistration(
  46         CloseDataChangeListenerRegistration message) {
  47         registration.close();
  48         getSender()
  49             .tell(new CloseDataChangeListenerRegistrationReply().toSerializable(), getSelf());
  50         getSelf().tell(PoisonPill.getInstance(), getSelf());
  51     }
  52
  53     private static class DataChangeListenerRegistrationCreator
  54                                             implements Creator<DataChangeListenerRegistration> {
  55         final ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier,
  56                                                            NormalizedNode<?, ?>>> registration;
  57
  58         DataChangeListenerRegistrationCreator(
  59                 ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier,
  60                                                              NormalizedNode<?, ?>>> registration) {
  61             this.registration = registration;
  62         }
  63
  64         @Override
  65         public DataChangeListenerRegistration create() throws Exception {
  66             return new DataChangeListenerRegistration(registration);
  67         }
  68     }
  69 }