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

   1 /*
   2  * Copyright (c) 2015 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 package org.opendaylight.controller.cluster.datastore.messages;
   9
  10 import akka.actor.ActorRef;
  11 import com.google.common.base.Preconditions;
  12 import java.io.Externalizable;
  13 import java.io.IOException;
  14 import java.io.ObjectInput;
  15 import java.io.ObjectOutput;
  16 import org.opendaylight.controller.cluster.datastore.node.utils.stream.SerializationUtils;
  17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  18
  19 /**
  20  * Request a {@link org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener} registration be made on the
  21  * shard leader.
  22  */
  23 public final class RegisterDataTreeChangeListener implements Externalizable, ListenerRegistrationMessage {
  24     private static final long serialVersionUID = 1L;
  25     private ActorRef dataTreeChangeListenerPath;
  26     private YangInstanceIdentifier path;
  27     private boolean registerOnAllInstances;
  28
  29     public RegisterDataTreeChangeListener() {
  30         // For Externalizable
  31     }
  32
  33     public RegisterDataTreeChangeListener(final YangInstanceIdentifier path, final ActorRef dataTreeChangeListenerPath,
  34             final boolean registerOnAllInstances) {
  35         this.path = Preconditions.checkNotNull(path);
  36         this.dataTreeChangeListenerPath = Preconditions.checkNotNull(dataTreeChangeListenerPath);
  37         this.registerOnAllInstances = registerOnAllInstances;
  38     }
  39
  40     @Override
  41     public YangInstanceIdentifier getPath() {
  42         return path;
  43     }
  44
  45     public ActorRef getDataTreeChangeListenerPath() {
  46         return dataTreeChangeListenerPath;
  47     }
  48
  49     @Override
  50     public boolean isRegisterOnAllInstances() {
  51         return registerOnAllInstances;
  52     }
  53
  54     @Override
  55     public void writeExternal(final ObjectOutput out) throws IOException {
  56         out.writeObject(dataTreeChangeListenerPath);
  57         SerializationUtils.serializePath(path, out);
  58         out.writeBoolean(registerOnAllInstances);
  59     }
  60
  61     @Override
  62     public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
  63         dataTreeChangeListenerPath = (ActorRef) in.readObject();
  64         path = SerializationUtils.deserializePath(in);
  65         registerOnAllInstances = in.readBoolean();
  66     }
  67 }