opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardTestKit.java

   1 /*
   2  * Copyright (c) 2014 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.cluster.datastore;
   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.util.concurrent.Uninterruptibles;
  16 import java.util.concurrent.TimeUnit;
  17 import java.util.concurrent.TimeoutException;
  18 import org.junit.Assert;
  19 import org.opendaylight.controller.cluster.raft.client.messages.FindLeader;
  20 import org.opendaylight.controller.cluster.raft.client.messages.FindLeaderReply;
  21 import scala.concurrent.Await;
  22 import scala.concurrent.Future;
  23 import scala.concurrent.duration.Duration;
  24 import scala.concurrent.duration.FiniteDuration;
  25
  26 public class ShardTestKit extends JavaTestKit {
  27
  28     protected ShardTestKit(ActorSystem actorSystem) {
  29         super(actorSystem);
  30     }
  31
  32     protected void waitForLogMessage(final Class<?> logLevel, ActorRef subject, String logMessage){
  33         // Wait for a specific log message to show up
  34         final boolean result =
  35             new JavaTestKit.EventFilter<Boolean>(logLevel
  36             ) {
  37                 @Override
  38                 protected Boolean run() {
  39                     return true;
  40                 }
  41             }.from(subject.path().toString())
  42                 .message(logMessage)
  43                 .occurrences(1).exec();
  44
  45         Assert.assertEquals(true, result);
  46
  47     }
  48
  49     protected void waitUntilLeader(ActorRef shard) {
  50         FiniteDuration duration = Duration.create(100, TimeUnit.MILLISECONDS);
  51         for(int i = 0; i < 20 * 5; i++) {
  52             Future<Object> future = Patterns.ask(shard, new FindLeader(), new Timeout(duration));
  53             try {
  54                 FindLeaderReply resp = (FindLeaderReply)Await.result(future, duration);
  55                 if(resp.getLeaderActor() != null) {
  56                     return;
  57                 }
  58             } catch(TimeoutException e) {
  59             } catch(Exception e) {
  60                 System.err.println("FindLeader threw ex");
  61                 e.printStackTrace();
  62             }
  63
  64
  65             Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
  66         }
  67
  68         Assert.fail("Leader not found for shard " + shard.path());
  69     }
  70
  71     protected void waitUntilNoLeader(ActorRef shard) {
  72         FiniteDuration duration = Duration.create(100, TimeUnit.MILLISECONDS);
  73         for(int i = 0; i < 20 * 5; i++) {
  74             Future<Object> future = Patterns.ask(shard, new FindLeader(), new Timeout(duration));
  75             try {
  76                 FindLeaderReply resp = (FindLeaderReply)Await.result(future, duration);
  77                 if(resp.getLeaderActor() == null) {
  78                     return;
  79                 }
  80             } catch(TimeoutException e) {
  81             } catch(Exception e) {
  82                 System.err.println("FindLeader threw ex");
  83                 e.printStackTrace();
  84             }
  85
  86
  87             Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
  88         }
  89
  90         Assert.fail("Unexpected leader found for shard " + shard.path());
  91     }
  92 }