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

   1 /*
   2  * Copyright (c) 2016 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.ActorContext;
  11 import akka.actor.ActorRef;
  12 import javax.annotation.concurrent.NotThreadSafe;
  13 import org.opendaylight.controller.cluster.datastore.utils.Dispatchers;
  14 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 /**
  19  * Abstract base class for a ShardDataTreeNotificationPublisher that offloads the generation and publication
  20  * of data tree notifications to an actor.
  21  *
  22  * @author Thomas Pantelis
  23  */
  24 @NotThreadSafe
  25 abstract class AbstractShardDataTreeNotificationPublisherActorProxy implements ShardDataTreeNotificationPublisher {
  26     private static final Logger LOG = LoggerFactory.getLogger(AbstractShardDataTreeNotificationPublisherActorProxy.class);
  27
  28     private final ActorContext actorContext;
  29     private final String actorName;
  30     private ActorRef notifierActor;
  31
  32     protected AbstractShardDataTreeNotificationPublisherActorProxy(ActorContext actorContext, String actorName) {
  33         this.actorContext = actorContext;
  34         this.actorName = actorName;
  35     }
  36
  37     protected AbstractShardDataTreeNotificationPublisherActorProxy(
  38             AbstractShardDataTreeNotificationPublisherActorProxy other) {
  39         this.actorContext = null;
  40         this.actorName = null;
  41         this.notifierActor = other.getNotifierActor();
  42     }
  43
  44     protected abstract ShardDataTreeNotificationPublisher getDelegatePublisher();
  45
  46     @Override
  47     public void publishChanges(DataTreeCandidate candidate, String logContext) {
  48         getNotifierActor().tell(new ShardDataTreeNotificationPublisherActor.PublishNotifications(
  49                 getDelegatePublisher(), candidate, logContext), ActorRef.noSender());
  50     }
  51
  52     private ActorRef getNotifierActor() {
  53         if(notifierActor == null) {
  54             LOG.debug("Creating actor {}", actorName);
  55
  56             String dispatcher = new Dispatchers(actorContext.system().dispatchers()).getDispatcherPath(
  57                     Dispatchers.DispatcherType.Notification);
  58             notifierActor = actorContext.actorOf(ShardDataTreeNotificationPublisherActor.props()
  59                     .withDispatcher(dispatcher).withMailbox(
  60                             org.opendaylight.controller.cluster.datastore.utils.ActorContext.BOUNDED_MAILBOX), actorName);
  61         }
  62
  63         return notifierActor;
  64     }
  65 }