opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataChangeListenerRegistrationActor.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.common.actor.AbstractUntypedActor;
  15
  16 import org.opendaylight.controller.cluster.datastore.messages.CloseDataChangeListenerRegistration;
  17 import org.opendaylight.controller.cluster.datastore.messages.CloseDataChangeListenerRegistrationReply;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
  19 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  21 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  22
  23 public class DataChangeListenerRegistrationActor extends AbstractUntypedActor {
  24
  25     private final ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
  26         registration;
  27
  28     public DataChangeListenerRegistrationActor(
  29         ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> registration) {
  30         this.registration = registration;
  31     }
  32
  33     @Override
  34     public void handleReceive(Object message) throws Exception {
  35         if (message.getClass().equals(CloseDataChangeListenerRegistration.SERIALIZABLE_CLASS)) {
  36             closeListenerRegistration(
  37                 new CloseDataChangeListenerRegistration());
  38         }
  39     }
  40
  41     public static Props props(
  42         final ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> registration) {
  43         return Props.create(new DataChangeListenerRegistrationCreator(registration));
  44     }
  45
  46     private void closeListenerRegistration(
  47         CloseDataChangeListenerRegistration message) {
  48         registration.close();
  49         getSender()
  50             .tell(new CloseDataChangeListenerRegistrationReply().toSerializable(), getSelf());
  51         getSelf().tell(PoisonPill.getInstance(), getSelf());
  52     }
  53
  54     private static class DataChangeListenerRegistrationCreator
  55                                             implements Creator<DataChangeListenerRegistrationActor> {
  56         private static final long serialVersionUID = 1L;
  57         final ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier,
  58                                                            NormalizedNode<?, ?>>> registration;
  59
  60         DataChangeListenerRegistrationCreator(
  61                 ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier,
  62                                                              NormalizedNode<?, ?>>> registration) {
  63             this.registration = registration;
  64         }
  65
  66         @Override
  67         public DataChangeListenerRegistrationActor create() throws Exception {
  68             return new DataChangeListenerRegistrationActor(registration);
  69         }
  70     }
  71 }