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*
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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package org.apache.qpid.server.virtualhost;
import org.apache.qpid.server.logging.LogActor;
import org.apache.qpid.server.logging.NullRootMessageLogger;
import org.apache.qpid.server.logging.actors.CurrentActor;
import org.apache.qpid.server.logging.actors.TestLogActor;
import org.apache.qpid.test.utils.QpidTestCase;
import java.util.concurrent.CountDownLatch;
public class HouseKeepingTaskTest extends QpidTestCase
{
/**
* Tests that the abstract HouseKeepingTask properly cleans up any LogActor
* it adds to the CurrentActor stack by verifying the CurrentActor set
* before task execution is the CurrentActor after execution.
*/
public void testCurrentActorStackBalance() throws Exception
{
//create and set a test actor
LogActor testActor = new TestLogActor(new NullRootMessageLogger());
CurrentActor.set(testActor);
//verify it is returned correctly before executing a HouseKeepingTask
assertEquals("Expected LogActor was not returned", testActor, CurrentActor.get());
final CountDownLatch latch = new CountDownLatch(1);
HouseKeepingTask testTask = new HouseKeepingTask(new MockVirtualHost("HouseKeepingTaskTestVhost"))
{
@Override
public void execute()
{
latch.countDown();
}
};
//run the test HouseKeepingTask using the current Thread to influence its CurrentActor stack
testTask.run();
assertEquals("The expected LogActor was not returned, the CurrentActor stack has become unbalanced",
testActor, CurrentActor.get());
assertEquals("HouseKeepingTask execute() method was not run", 0, latch.getCount());
//clean up the test actor
CurrentActor.remove();
}
public void testThreadNameIsSetForDurationOfTask() throws Exception
{
//create and set a test actor
LogActor testActor = new TestLogActor(new NullRootMessageLogger());
CurrentActor.set(testActor);
String originalThreadName = Thread.currentThread().getName();
String vhostName = "HouseKeepingTaskTestVhost";
String expectedThreadNameDuringExecution = vhostName + ":" + "ThreadNameRememberingTask";
ThreadNameRememberingTask testTask = new ThreadNameRememberingTask(new MockVirtualHost(vhostName));
testTask.run();
assertEquals("Thread name should have been set during execution", expectedThreadNameDuringExecution, testTask.getThreadNameDuringExecution());
assertEquals("Thread name should have been reverted after task has run", originalThreadName, Thread.currentThread().getName());
//clean up the test actor
CurrentActor.remove();
}
private static final class ThreadNameRememberingTask extends HouseKeepingTask
{
private String _threadNameDuringExecution;
private ThreadNameRememberingTask(VirtualHost vhost)
{
super(vhost);
}
@Override
public void execute()
{
_threadNameDuringExecution = Thread.currentThread().getName(); // store current thread name so we can assert it later
throw new RuntimeException("deliberate exception to check that thread name still gets reverted");
}
public String getThreadNameDuringExecution()
{
return _threadNameDuringExecution;
}
}
}