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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* 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
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.server.queue;
import junit.framework.TestCase;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.BasicContentHeaderProperties;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;
public class QueueEntryImplThreadingTest extends TestCase
{
private volatile boolean _running;
private volatile Error _error;
ReentrantLock _waitLock = new ReentrantLock();
private final String _testName = this.getName();
/** Test the Redelivered state of a QueueEntryImpl */
public void test() throws AMQException, InterruptedException
{
final MockAMQMessage message = new MockAMQMessage(1L);
((BasicContentHeaderProperties) message.getContentHeaderBody().properties).setAppId(_testName);
final QueueEntry entry = new MockQueueEntry(message);
Runnable unloader = new Runnable()
{
public void run()
{
try
{
while (_running)
{
entry.unload();
}
}
catch (Error e)
{
signalError("Error whilst Unloading:", e);
}
}
};
Runnable loader = new Runnable()
{
public void run()
{
try
{
while (_running)
{
AMQMessage loaded = entry.load();
assertNotNull("Entry Returned Null Message.", loaded);
assertEquals("Message ID not correct on loaded message.", message.getMessageId(),
loaded.getMessageId());
assertEquals("Message Arrival time not correctly retrieved.", message.getArrivalTime(),
loaded.getArrivalTime());
assertEquals("Custom AppId not correctly retrieved.", _testName,
((BasicContentHeaderProperties) loaded.getContentHeaderBody().properties).
getAppIdAsString());
}
}
catch (Error e)
{
signalError("Error whilst Loading:", e);
}
}
};
_running = true;
//Start a couple of unloaders
Thread unloadThread = new Thread(unloader);
unloadThread.start();
Thread unloadThread2 = new Thread(unloader);
unloadThread2.start();
//Start a couple of loaders
Thread loadThread = new Thread(loader);
loadThread.start();
Thread loadThread2 = new Thread(loader);
loadThread2.start();
//Run for 3 seconds.
long sleep = 3000;
Condition wait = _waitLock.newCondition();
while (sleep > 0 && _error == null)
{
try
{
_waitLock.lock();
sleep = wait.awaitNanos(TimeUnit.MILLISECONDS.toNanos(sleep));
}
catch (InterruptedException e)
{
//Stop if we are interrupted
fail(e.getMessage());
}
finally
{
_waitLock.unlock();
}
}
_running = false;
unloadThread.join();
unloadThread2.join();
loadThread.join();
loadThread2.join();
if (_error != null)
{
throw _error;
}
}
private void signalError(String message, Error e)
{
System.err.println(message + e.getMessage());
e.printStackTrace();
_error = e;
try
{
_waitLock.lock();
_waitLock.notify();
}
finally
{
_waitLock.unlock();
}
}
}
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