opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/RaftActorTestKit.java

   1 /*
   2  * Copyright (c) 2014 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.raft;
   9
  10 import akka.actor.ActorRef;
  11 import akka.actor.ActorSystem;
  12 import akka.pattern.Patterns;
  13 import akka.testkit.JavaTestKit;
  14 import akka.util.Timeout;
  15 import com.google.common.base.Optional;
  16 import com.google.common.util.concurrent.Uninterruptibles;
  17 import java.util.Collections;
  18 import java.util.concurrent.TimeUnit;
  19 import java.util.concurrent.TimeoutException;
  20 import org.junit.Assert;
  21 import org.opendaylight.controller.cluster.raft.client.messages.FindLeader;
  22 import org.opendaylight.controller.cluster.raft.client.messages.FindLeaderReply;
  23 import scala.concurrent.Await;
  24 import scala.concurrent.Future;
  25 import scala.concurrent.duration.Duration;
  26 import scala.concurrent.duration.FiniteDuration;
  27
  28 public class RaftActorTestKit extends JavaTestKit {
  29     private final ActorRef raftActor;
  30
  31     public RaftActorTestKit(ActorSystem actorSystem, String actorName) {
  32         super(actorSystem);
  33
  34         raftActor = this.getSystem().actorOf(MockRaftActor.props(actorName,
  35                 Collections.<String,String>emptyMap(), Optional.<ConfigParams>absent()), actorName);
  36
  37     }
  38
  39
  40     public ActorRef getRaftActor() {
  41         return raftActor;
  42     }
  43
  44     public boolean waitForLogMessage(final Class<?> logEventClass, String message){
  45         // Wait for a specific log message to show up
  46         return
  47             new JavaTestKit.EventFilter<Boolean>(logEventClass
  48             ) {
  49                 @Override
  50                 protected Boolean run() {
  51                     return true;
  52                 }
  53             }.from(raftActor.path().toString())
  54                 .message(message)
  55                 .occurrences(1).exec();
  56
  57
  58     }
  59
  60     protected void waitUntilLeader(){
  61         waitUntilLeader(raftActor);
  62     }
  63
  64     public static void waitUntilLeader(ActorRef actorRef) {
  65         FiniteDuration duration = Duration.create(100, TimeUnit.MILLISECONDS);
  66         for(int i = 0; i < 20 * 5; i++) {
  67             Future<Object> future = Patterns.ask(actorRef, new FindLeader(), new Timeout(duration));
  68             try {
  69                 FindLeaderReply resp = (FindLeaderReply) Await.result(future, duration);
  70                 if(resp.getLeaderActor() != null) {
  71                     return;
  72                 }
  73             } catch(TimeoutException e) {
  74             } catch(Exception e) {
  75                 System.err.println("FindLeader threw ex");
  76                 e.printStackTrace();
  77             }
  78
  79
  80             Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
  81         }
  82
  83         Assert.fail("Leader not found for actorRef " + actorRef.path());
  84     }
  85
  86 }