/*
* Copyright (c) 2014 Brocade Communications Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.controller.cluster.datastore;
import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import akka.pattern.Patterns;
import akka.testkit.JavaTestKit;
import akka.util.Timeout;
import com.google.common.util.concurrent.Uninterruptibles;
import java.util.Optional;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.junit.Assert;
import org.opendaylight.controller.cluster.raft.client.messages.FindLeader;
import org.opendaylight.controller.cluster.raft.client.messages.FindLeaderReply;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import scala.concurrent.Await;
import scala.concurrent.Future;
import scala.concurrent.duration.Duration;
import scala.concurrent.duration.FiniteDuration;
public class ShardTestKit extends JavaTestKit {
private static final Logger LOG = LoggerFactory.getLogger(ShardTestKit.class);
public ShardTestKit(ActorSystem actorSystem) {
super(actorSystem);
}
public void waitForLogMessage(final Class<?> logLevel, ActorRef subject, String logMessage) {
// Wait for a specific log message to show up
final boolean result =
new JavaTestKit.EventFilter<Boolean>(logLevel
) {
@Override
protected Boolean run() {
return true;
}
}.from(subject.path().toString())
.message(logMessage)
.occurrences(1).exec();
Assert.assertEquals(true, result);
}
@SuppressWarnings("checkstyle:IllegalCatch")
public static String waitUntilLeader(ActorRef shard) {
FiniteDuration duration = Duration.create(100, TimeUnit.MILLISECONDS);
for (int i = 0; i < 20 * 5; i++) {
Future<Object> future = Patterns.ask(shard, FindLeader.INSTANCE, new Timeout(duration));
try {
final Optional<String> maybeLeader = ((FindLeaderReply) Await.result(future, duration))
.getLeaderActor();
if (maybeLeader.isPresent()) {
return maybeLeader.get();
}
} catch (TimeoutException e) {
LOG.trace("FindLeader timed out", e);
} catch (Exception e) {
LOG.error("FindLeader failed", e);
}
Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
}
Assert.fail("Leader not found for shard " + shard.path());
return null;
}
@SuppressWarnings("checkstyle:IllegalCatch")
public void waitUntilNoLeader(ActorRef shard) {
FiniteDuration duration = Duration.create(100, TimeUnit.MILLISECONDS);
Object lastResponse = null;
for (int i = 0; i < 20 * 5; i++) {
Future<Object> future = Patterns.ask(shard, FindLeader.INSTANCE, new Timeout(duration));
try {
final Optional<String> maybeLeader = ((FindLeaderReply) Await.result(future, duration))
.getLeaderActor();
if (!maybeLeader.isPresent()) {
return;
}
lastResponse = maybeLeader.get();
} catch (TimeoutException e) {
lastResponse = e;
} catch (Exception e) {
LOG.error("FindLeader failed", e);
lastResponse = e;
}
Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
}
if (lastResponse instanceof Throwable) {
throw (AssertionError)new AssertionError(
String.format("Unexpected error occurred from FindLeader for shard %s", shard.path()))
.initCause((Throwable)lastResponse);
}
Assert.fail(String.format("Unexpected leader %s found for shard %s", lastResponse, shard.path()));
}
}