opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/config/yang/config/actor_system_provider/impl/ActorSystemProviderImpl.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.config.yang.config.actor_system_provider.impl;
   9
  10 import akka.actor.ActorSystem;
  11 import akka.osgi.BundleDelegatingClassLoader;
  12 import com.typesafe.config.ConfigFactory;
  13 import java.util.concurrent.TimeUnit;
  14 import org.opendaylight.controller.cluster.ActorSystemProvider;
  15 import org.opendaylight.controller.cluster.ActorSystemProviderListener;
  16 import org.opendaylight.controller.cluster.common.actor.AkkaConfigurationReader;
  17 import org.opendaylight.controller.cluster.common.actor.FileAkkaConfigurationReader;
  18 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  19 import org.opendaylight.yangtools.util.ListenerRegistry;
  20 import org.osgi.framework.BundleContext;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23 import scala.concurrent.duration.Duration;
  24
  25 public class ActorSystemProviderImpl implements ActorSystemProvider, AutoCloseable {
  26     private static final String ACTOR_SYSTEM_NAME = "opendaylight-cluster-data";
  27     private static final String CONFIGURATION_NAME = "odl-cluster-data";
  28     static final Logger LOG = LoggerFactory.getLogger(ActorSystemProviderImpl.class);
  29
  30     private ActorSystem actorSystem;
  31     private final BundleDelegatingClassLoader classLoader;
  32     private final ListenerRegistry<ActorSystemProviderListener> listeners = new ListenerRegistry<>();
  33
  34     public ActorSystemProviderImpl(BundleContext bundleContext) {
  35         LOG.info("Creating new ActorSystem");
  36
  37         classLoader = new BundleDelegatingClassLoader(bundleContext.getBundle(),
  38                 Thread.currentThread().getContextClassLoader());
  39
  40         createActorSystem();
  41     }
  42
  43     private void createActorSystem() {
  44         AkkaConfigurationReader configurationReader = new FileAkkaConfigurationReader();
  45         actorSystem = ActorSystem.create(ACTOR_SYSTEM_NAME,
  46                 ConfigFactory.load(configurationReader.read()).getConfig(CONFIGURATION_NAME), classLoader);
  47     }
  48
  49     @Override
  50     public ActorSystem getActorSystem() {
  51         return actorSystem;
  52     }
  53
  54     @Override
  55     public ListenerRegistration<ActorSystemProviderListener> registerActorSystemProviderListener(
  56             ActorSystemProviderListener listener) {
  57         return listeners.register(listener);
  58     }
  59
  60     @Override
  61     public void close() {
  62         LOG.info("Shutting down ActorSystem");
  63
  64         actorSystem.shutdown();
  65         try {
  66             actorSystem.awaitTermination(Duration.create(10, TimeUnit.SECONDS));
  67         } catch (Exception e) {
  68             LOG.warn("Error awaiting actor termination", e);
  69         }
  70     }
  71 }