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 static com.google.common.base.Verify.verifyNotNull;
  11 import static java.util.Objects.requireNonNull;
  12
  13 import akka.actor.ActorRef;
  14 import akka.util.Timeout;
  15 import com.google.common.base.Throwables;
  16 import java.util.concurrent.TimeUnit;
  17 import org.eclipse.jdt.annotation.NonNull;
  18 import org.opendaylight.controller.cluster.access.client.AbstractClientActor;
  19 import org.opendaylight.controller.cluster.access.client.ClientActorConfig;
  20 import org.opendaylight.controller.cluster.access.client.ClientActorContext;
  21 import org.opendaylight.controller.cluster.access.concepts.FrontendIdentifier;
  22 import org.opendaylight.controller.cluster.common.actor.ExplicitAsk;
  23 import org.opendaylight.controller.cluster.datastore.utils.ActorUtils;
  24 import scala.Function1;
  25 import scala.concurrent.Await;
  26 import scala.concurrent.duration.Duration;
  27
  28 public abstract class AbstractDataStoreClientActor extends AbstractClientActor {
  29     private static final Function1<ActorRef, ?> GET_CLIENT_FACTORY = ExplicitAsk.toScala(GetClientRequest::new);
  30
  31     private final ActorUtils actorUtils;
  32
  33     AbstractDataStoreClientActor(final FrontendIdentifier frontendId, final ActorUtils actorUtils) {
  34         super(frontendId);
  35         this.actorUtils = requireNonNull(actorUtils);
  36     }
  37
  38     @Override
  39     protected ClientActorConfig getClientActorConfig() {
  40         return actorUtils.getDatastoreContext();
  41     }
  42
  43     @Override
  44     protected final AbstractDataStoreClientBehavior initialBehavior(final ClientActorContext context) {
  45         return verifyNotNull(initialBehavior(context, actorUtils));
  46     }
  47
  48     @SuppressWarnings("checkstyle:hiddenField")
  49     abstract AbstractDataStoreClientBehavior initialBehavior(ClientActorContext context, ActorUtils actorUtils);
  50
  51     @SuppressWarnings("checkstyle:IllegalCatch")
  52     public static DataStoreClient getDistributedDataStoreClient(final @NonNull ActorRef actor,
  53             final long timeout, final TimeUnit unit) {
  54         try {
  55             return (DataStoreClient) Await.result(ExplicitAsk.ask(actor, GET_CLIENT_FACTORY,
  56                 Timeout.apply(timeout, unit)), Duration.Inf());
  57         } catch (Exception e) {
  58             Throwables.throwIfUnchecked(e);
  59             throw new IllegalStateException(e);
  60         }
  61     }
  62 }