/**
* 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.activemq.usecases;
import java.util.concurrent.atomic.AtomicInteger;
import javax.jms.Connection;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueReceiver;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.Topic;
import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
/**
* @author Peter Henning
* @version $Revision: 1.1.1.1 $
*/
public class CreateTemporaryQueueBeforeStartTest extends TestCase {
protected String bindAddress = "tcp://localhost:61621";
private Connection connection;
private BrokerService broker = new BrokerService();
public void testCreateTemporaryQueue() throws Exception {
connection = createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createTemporaryQueue();
assertTrue("No queue created!", queue != null);
Topic topic = session.createTemporaryTopic();
assertTrue("No topic created!", topic != null);
}
public void testTryToReproduceNullPointerBug() throws Exception {
String url = bindAddress;
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(url);
QueueConnection queueConnection = factory.createQueueConnection();
this.connection = queueConnection;
QueueSession session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
session.createSender(null); // Unidentified
Queue receiverQueue = session.createTemporaryQueue();
session.createReceiver(receiverQueue);
queueConnection.start();
}
public void testTemporaryQueueConsumer() throws Exception {
final int number = 20;
final AtomicInteger count = new AtomicInteger(0);
for (int i = 0; i < number; i++) {
Thread thread = new Thread(new Runnable() {
public void run() {
try {
QueueConnection connection = createConnection();
QueueSession session = connection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createTemporaryQueue();
session.createReceiver(queue);
connection.start();
if (count.incrementAndGet() >= number) {
synchronized (count) {
count.notify();
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
});
thread.start();
}
int maxWaitTime = 20000;
synchronized (count) {
long waitTime = maxWaitTime;
long start = System.currentTimeMillis();
while (count.get() < number) {
if (waitTime <= 0) {
break;
} else {
count.wait(waitTime);
waitTime = maxWaitTime - (System.currentTimeMillis() - start);
}
}
}
assertTrue("Unexpected count: " + count, count.get() == number);
}
protected QueueConnection createConnection() throws Exception {
ActiveMQConnectionFactory factory = createConnectionFactory();
return factory.createQueueConnection();
}
protected ActiveMQConnectionFactory createConnectionFactory() throws Exception {
return new ActiveMQConnectionFactory(bindAddress);
}
protected void setUp() throws Exception {
broker.setPersistent(false);
broker.addConnector(bindAddress);
broker.start();
super.setUp();
}
protected void tearDown() throws Exception {
if (connection != null) {
connection.close();
}
broker.stop();
super.tearDown();
}
}