opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/AbstractDataStoreClientActor.java

   1 /*
   2  * Copyright (c) 2016 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.databroker.actors.dds;
   9
  10 import akka.actor.ActorRef;
  11 import akka.util.Timeout;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.base.Throwables;
  14 import com.google.common.base.Verify;
  15 import java.util.concurrent.TimeUnit;
  16 import javax.annotation.Nonnull;
  17 import org.opendaylight.controller.cluster.access.client.AbstractClientActor;
  18 import org.opendaylight.controller.cluster.access.client.ClientActorContext;
  19 import org.opendaylight.controller.cluster.access.concepts.FrontendIdentifier;
  20 import org.opendaylight.controller.cluster.common.actor.ExplicitAsk;
  21 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
  22 import scala.Function1;
  23 import scala.concurrent.Await;
  24 import scala.concurrent.duration.Duration;
  25
  26 public abstract class AbstractDataStoreClientActor extends AbstractClientActor {
  27     private static final Function1<ActorRef, ?> GET_CLIENT_FACTORY = ExplicitAsk.toScala(t -> new GetClientRequest(t));
  28
  29     private final ActorContext actorContext;
  30
  31     AbstractDataStoreClientActor(final FrontendIdentifier frontendId, final ActorContext actorContext) {
  32         super(frontendId);
  33         this.actorContext = Preconditions.checkNotNull(actorContext);
  34     }
  35
  36     @Override
  37     protected final AbstractDataStoreClientBehavior initialBehavior(final ClientActorContext context) {
  38         return Verify.verifyNotNull(initialBehavior(context, actorContext));
  39     }
  40
  41     abstract AbstractDataStoreClientBehavior initialBehavior(ClientActorContext context, ActorContext actorContext);
  42
  43     @SuppressWarnings("checkstyle:IllegalCatch")
  44     public static DataStoreClient getDistributedDataStoreClient(@Nonnull final ActorRef actor,
  45             final long timeout, final TimeUnit unit) {
  46         try {
  47             return (DataStoreClient) Await.result(ExplicitAsk.ask(actor, GET_CLIENT_FACTORY,
  48                 Timeout.apply(timeout, unit)), Duration.Inf());
  49         } catch (Exception e) {
  50             throw Throwables.propagate(e);
  51         }
  52     }
  53 }