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.ActorPath;
  11 import akka.actor.ActorRef;
  12 import com.google.common.base.Preconditions;
  13 import java.io.Externalizable;
  14 import java.io.IOException;
  15 import java.io.ObjectInput;
  16 import java.io.ObjectOutput;
  17 import org.opendaylight.controller.cluster.datastore.node.utils.stream.SerializationUtils;
  18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  19
  20 /**
  21  * Request a {@link org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener} registration be made on the
  22  * shard leader.
  23  */
  24 public final class RegisterDataTreeChangeListener implements Externalizable {
  25     private static final long serialVersionUID = 1L;
  26     private ActorRef dataTreeChangeListenerPath;
  27     private YangInstanceIdentifier path;
  28     private boolean registerOnAllInstances;
  29
  30     public RegisterDataTreeChangeListener() {
  31         // For Externalizable
  32     }
  33
  34     public RegisterDataTreeChangeListener(final YangInstanceIdentifier path, final ActorRef dataTreeChangeListenerPath,
  35             final boolean registerOnAllInstances) {
  36         this.path = Preconditions.checkNotNull(path);
  37         this.dataTreeChangeListenerPath = Preconditions.checkNotNull(dataTreeChangeListenerPath);
  38         this.registerOnAllInstances = registerOnAllInstances;
  39     }
  40
  41     public YangInstanceIdentifier getPath() {
  42         return path;
  43     }
  44
  45     public ActorPath getListenerActorPath() {
  46         return dataTreeChangeListenerPath.path();
  47     }
  48
  49     public boolean isRegisterOnAllInstances() {
  50         return registerOnAllInstances;
  51     }
  52
  53     @Override
  54     public void writeExternal(final ObjectOutput out) throws IOException {
  55         out.writeObject(dataTreeChangeListenerPath);
  56         SerializationUtils.serializePath(path, out);
  57         out.writeBoolean(registerOnAllInstances);
  58     }
  59
  60     @Override
  61     public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
  62         dataTreeChangeListenerPath = (ActorRef) in.readObject();
  63         path = SerializationUtils.deserializePath(in);
  64         registerOnAllInstances = in.readBoolean();
  65     }
  66
  67     @Override
  68     public String toString() {
  69         return "RegisterDataTreeChangeListener [path=" + path + ", registerOnAllInstances=" + registerOnAllInstances
  70                 + ", dataTreeChangeListenerPath=" + dataTreeChangeListenerPath + "]";
  71     }
  72 }