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

   1 /*
   2  * Copyright (c) 2015 Brocade Communications 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;
   9
  10 import akka.actor.ActorRef;
  11 import org.checkerframework.checker.lock.qual.GuardedBy;
  12 import org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeChangeListener;
  13 import org.opendaylight.yangtools.concepts.Registration;
  14
  15 class DelayedDataTreeChangeListenerRegistration implements Registration {
  16     private final RegisterDataTreeChangeListener registrationMessage;
  17     private final ActorRef registrationActor;
  18
  19     @GuardedBy("this")
  20     private boolean closed;
  21
  22     DelayedDataTreeChangeListenerRegistration(final RegisterDataTreeChangeListener registrationMessage,
  23             final ActorRef registrationActor) {
  24         this.registrationMessage = registrationMessage;
  25         this.registrationActor = registrationActor;
  26     }
  27
  28     synchronized void doRegistration(final DataTreeChangeListenerSupport support) {
  29         if (!closed) {
  30             support.doRegistration(registrationMessage, registrationActor);
  31         }
  32     }
  33
  34     @Override
  35     public synchronized void close() {
  36         closed = true;
  37     }
  38 }