/**
* 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.bugs;
import static org.junit.Assert.assertEquals;
import java.util.Random;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import javax.jms.Connection;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQSession;
import org.apache.activemq.broker.BrokerService;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AMQ3732Test {
private static Logger LOG = LoggerFactory.getLogger(AMQ3732Test.class);
private ActiveMQConnectionFactory connectionFactory;
private Connection connection;
private Session session;
private BrokerService broker;
private String connectionUri;
private final Random pause = new Random();
private final long NUM_MESSAGES = 25000;
private final AtomicLong totalConsumed = new AtomicLong();
@Before
public void startBroker() throws Exception {
broker = new BrokerService();
broker.setDeleteAllMessagesOnStartup(true);
broker.setPersistent(false);
broker.setUseJmx(false);
broker.addConnector("tcp://0.0.0.0:0");
broker.start();
broker.waitUntilStarted();
connectionUri = broker.getTransportConnectors().get(0).getPublishableConnectString();
connectionFactory = new ActiveMQConnectionFactory(connectionUri);
connectionFactory.getPrefetchPolicy().setAll(0);
}
@After
public void stopBroker() throws Exception {
connection.close();
broker.stop();
broker.waitUntilStopped();
}
@Test(timeout = 1200000)
public void testInterruptionAffects() throws Exception {
connection = connectionFactory.createConnection();
connection.start();
session = connection.createSession(false, ActiveMQSession.INDIVIDUAL_ACKNOWLEDGE);
Queue queue = session.createQueue("AMQ3732Test");
final LinkedBlockingQueue<Message> workQueue = new LinkedBlockingQueue<Message>();
final MessageConsumer consumer1 = session.createConsumer(queue);
final MessageConsumer consumer2 = session.createConsumer(queue);
final MessageProducer producer = session.createProducer(queue);
Thread consumer1Thread = new Thread(new Runnable() {
@Override
public void run() {
try {
while (totalConsumed.get() < NUM_MESSAGES) {
Message message = consumer1.receiveNoWait();
if (message != null) {
workQueue.add(message);
}
}
} catch(Exception e) {
LOG.error("Caught an unexpected error: ", e);
}
}
});
consumer1Thread.start();
Thread consumer2Thread = new Thread(new Runnable() {
@Override
public void run() {
try {
while (totalConsumed.get() < NUM_MESSAGES) {
Message message = consumer2.receive(50);
if (message != null) {
workQueue.add(message);
}
}
} catch(Exception e) {
LOG.error("Caught an unexpected error: ", e);
}
}
});
consumer2Thread.start();
Thread producerThread = new Thread(new Runnable() {
@Override
public void run() {
try {
for (int i = 0; i < NUM_MESSAGES; ++i) {
producer.send(session.createTextMessage("TEST"));
TimeUnit.MILLISECONDS.sleep(pause.nextInt(10));
}
} catch(Exception e) {
LOG.error("Caught an unexpected error: ", e);
}
}
});
producerThread.start();
Thread ackingThread = new Thread(new Runnable() {
@Override
public void run() {
try {
while (totalConsumed.get() < NUM_MESSAGES) {
Message message = workQueue.take();
message.acknowledge();
totalConsumed.incrementAndGet();
if ((totalConsumed.get() % 100) == 0) {
LOG.info("Consumed " + totalConsumed.get() + " messages so far.");
}
}
} catch(Exception e) {
LOG.error("Caught an unexpected error: ", e);
}
}
});
ackingThread.start();
producerThread.join();
consumer1Thread.join();
consumer2Thread.join();
ackingThread.join();
assertEquals(NUM_MESSAGES, totalConsumed.get());
}
}