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.actor.Props;
  12 import akka.osgi.BundleDelegatingClassLoader;
  13 import com.typesafe.config.Config;
  14 import com.typesafe.config.ConfigFactory;
  15 import java.security.AccessController;
  16 import java.security.PrivilegedAction;
  17 import java.util.concurrent.TimeUnit;
  18 import org.opendaylight.controller.cluster.ActorSystemProvider;
  19 import org.opendaylight.controller.cluster.ActorSystemProviderListener;
  20 import org.opendaylight.controller.cluster.common.actor.AkkaConfigurationReader;
  21 import org.opendaylight.controller.cluster.common.actor.FileAkkaConfigurationReader;
  22 import org.opendaylight.controller.cluster.common.actor.QuarantinedMonitorActor;
  23 import org.opendaylight.controller.cluster.datastore.TerminationMonitor;
  24 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  25 import org.opendaylight.yangtools.util.ListenerRegistry;
  26 import org.osgi.framework.Bundle;
  27 import org.osgi.framework.BundleContext;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30 import scala.concurrent.Await;
  31 import scala.concurrent.duration.Duration;
  32
  33 public class ActorSystemProviderImpl implements ActorSystemProvider, AutoCloseable {
  34     private static final String ACTOR_SYSTEM_NAME = "opendaylight-cluster-data";
  35     private static final String CONFIGURATION_NAME = "odl-cluster-data";
  36     static final Logger LOG = LoggerFactory.getLogger(ActorSystemProviderImpl.class);
  37     private final ActorSystem actorSystem;
  38     private final ListenerRegistry<ActorSystemProviderListener> listeners = new ListenerRegistry<>();
  39
  40     public ActorSystemProviderImpl(final BundleContext bundleContext) {
  41         LOG.info("Creating new ActorSystem");
  42
  43         final Bundle bundle = bundleContext.getBundle();
  44
  45         final BundleDelegatingClassLoader classLoader = AccessController.doPrivileged(
  46             (PrivilegedAction<BundleDelegatingClassLoader>) () ->
  47                 new BundleDelegatingClassLoader(bundle, Thread.currentThread().getContextClassLoader()));
  48
  49         final AkkaConfigurationReader configurationReader = new FileAkkaConfigurationReader();
  50         final Config akkaConfig = ConfigFactory.load(configurationReader.read()).getConfig(CONFIGURATION_NAME);
  51
  52         actorSystem = ActorSystem.create(ACTOR_SYSTEM_NAME, akkaConfig, classLoader);
  53
  54         actorSystem.actorOf(Props.create(TerminationMonitor.class), TerminationMonitor.ADDRESS);
  55
  56         actorSystem.actorOf(QuarantinedMonitorActor.props(() -> {
  57             // restart the entire karaf container
  58             LOG.warn("Restarting karaf container");
  59             System.setProperty("karaf.restart", "true");
  60             bundleContext.getBundle(0).stop();
  61         }), QuarantinedMonitorActor.ADDRESS);
  62
  63     }
  64
  65     @Override
  66     public ActorSystem getActorSystem() {
  67         return actorSystem;
  68     }
  69
  70     @Override
  71     public ListenerRegistration<ActorSystemProviderListener> registerActorSystemProviderListener(
  72             final ActorSystemProviderListener listener) {
  73         return listeners.register(listener);
  74     }
  75
  76     @Override
  77     @SuppressWarnings("checkstyle:IllegalCatch")
  78     public void close() {
  79         LOG.info("Shutting down ActorSystem");
  80
  81         try {
  82             Await.result(actorSystem.terminate(), Duration.create(10, TimeUnit.SECONDS));
  83         } catch (Exception e) {
  84             LOG.warn("Error awaiting actor termination", e);
  85         }
  86     }
  87 }