opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/DistributedDataStoreClientActor.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.actor.Props;
  12 import akka.util.Timeout;
  13 import com.google.common.base.Preconditions;
  14 import com.google.common.base.Throwables;
  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.access.concepts.FrontendType;
  21 import org.opendaylight.controller.cluster.access.concepts.MemberName;
  22 import org.opendaylight.controller.cluster.common.actor.ExplicitAsk;
  23 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
  24 import scala.Function1;
  25 import scala.concurrent.Await;
  26 import scala.concurrent.duration.Duration;
  27
  28 /**
  29  * A {@link AbstractClientActor} which acts as the point of contact for DistributedDataStore.
  30  *
  31  * @author Robert Varga
  32  */
  33 public final class DistributedDataStoreClientActor extends AbstractClientActor {
  34     private static final Function1<ActorRef, ?> GET_CLIENT_FACTORY = ExplicitAsk.toScala(t -> new GetClientRequest(t));
  35
  36     private final ActorContext actorContext;
  37
  38     private DistributedDataStoreClientActor(final FrontendIdentifier frontendId, final ActorContext actorContext) {
  39         super(frontendId);
  40         this.actorContext = Preconditions.checkNotNull(actorContext);
  41     }
  42
  43     @Override
  44     protected DistributedDataStoreClientBehavior initialBehavior(final ClientActorContext context) {
  45         return new DistributedDataStoreClientBehavior(context, actorContext);
  46     }
  47
  48     public static Props props(@Nonnull final MemberName memberName, @Nonnull final String storeName,
  49             final ActorContext ctx) {
  50         final String name = "datastore-" + storeName;
  51         final FrontendIdentifier frontendId = FrontendIdentifier.create(memberName, FrontendType.forName(name));
  52         return Props.create(DistributedDataStoreClientActor.class,
  53             () -> new DistributedDataStoreClientActor(frontendId, ctx));
  54     }
  55
  56     @SuppressWarnings("checkstyle:IllegalCatch")
  57     public static DistributedDataStoreClient getDistributedDataStoreClient(@Nonnull final ActorRef actor,
  58             final long timeout, final TimeUnit unit) {
  59         try {
  60             return (DistributedDataStoreClient) Await.result(ExplicitAsk.ask(actor, GET_CLIENT_FACTORY,
  61                 Timeout.apply(timeout, unit)), Duration.Inf());
  62         } catch (Exception e) {
  63             throw Throwables.propagate(e);
  64         }
  65     }
  66 }