/**
* 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.assertTrue;
import java.util.ArrayList;
import java.util.UUID;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicSubscriber;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*/
public class AMQ4413Test {
static final Logger LOG = LoggerFactory.getLogger(AMQ4413Test.class);
final String brokerUrl = "tcp://localhost:0";
private String connectionUri;
final int numMsgsTriggeringReconnection = 2;
final int numMsgs = 30;
final int numTests = 75;
final ExecutorService threadPool = Executors.newCachedThreadPool();
@Test
public void testDurableSubMessageLoss() throws Exception{
// start embedded broker
BrokerService brokerService = new BrokerService();
connectionUri = brokerService.addConnector(brokerUrl).getPublishableConnectString();
brokerService.setPersistent(false);
brokerService.setUseJmx(false);
brokerService.setKeepDurableSubsActive(true);
brokerService.setAdvisorySupport(false);
brokerService.start();
LOG.info("##### broker started");
// repeat test 50 times
try {
for (int i = 0; i < numTests; ++i) {
LOG.info("##### test " + i + " started");
test();
}
LOG.info("##### tests are done");
} catch (Exception e) {
e.printStackTrace();
LOG.info("##### tests failed!");
} finally {
threadPool.shutdown();
brokerService.stop();
LOG.info("##### broker stopped");
}
}
private void test() throws Exception {
final String topicName = "topic-" + UUID.randomUUID();
final String clientId = "client-" + UUID.randomUUID();
final String subName = "sub-" + UUID.randomUUID();
// create (and only create) subscription first
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(connectionUri);
factory.setWatchTopicAdvisories(false);
Connection connection = factory.createConnection();
connection.setClientID(clientId);
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Topic topic = session.createTopic(topicName);
TopicSubscriber durableSubscriptionCreator = session.createDurableSubscriber(topic, subName);
connection.stop();
durableSubscriptionCreator.close();
session.close();
connection.close();
// publisher task
Callable<Boolean> publisher = new Callable<Boolean>() {
@Override
public Boolean call() throws Exception {
Connection connection = null;
try {
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(connectionUri);
factory.setWatchTopicAdvisories(false);
connection = factory.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Topic topic = session.createTopic(topicName);
MessageProducer producer = session.createProducer(topic);
producer.setDeliveryMode(DeliveryMode.PERSISTENT);
producer.setPriority(Message.DEFAULT_PRIORITY);
producer.setTimeToLive(Message.DEFAULT_TIME_TO_LIVE);
for (int seq = 1; seq <= numMsgs; ++seq) {
TextMessage msg = session.createTextMessage(String.valueOf(seq));
producer.send(msg);
LOG.info("pub sent msg: " + seq);
Thread.sleep(1L);
}
LOG.info("pub is done");
} finally {
if (connection != null) {
try {
connection.close();
} catch (JMSException e) {
e.printStackTrace();
}
}
}
return Boolean.TRUE;
}
};
// subscriber task
Callable<Boolean> durableSubscriber = new Callable<Boolean>() {
ActiveMQConnectionFactory factory;
Connection connection;
Session session;
Topic topic;
TopicSubscriber consumer;
@Override
public Boolean call() throws Exception {
factory = new ActiveMQConnectionFactory(connectionUri);
factory.setWatchTopicAdvisories(false);
try {
connect();
for (int seqExpected = 1; seqExpected <= numMsgs; ++seqExpected) {
TextMessage msg = (TextMessage) consumer.receive(3000L);
if (msg == null) {
LOG.info("expected: " + seqExpected + ", actual: timed out", msg);
return Boolean.FALSE;
}
int seq = Integer.parseInt(msg.getText());
LOG.info("sub received msg: " + seq);
if (seqExpected != seq) {
LOG.info("expected: " + seqExpected + ", actual: " + seq);
return Boolean.FALSE;
}
if (seq % numMsgsTriggeringReconnection == 0) {
close(false);
connect();
LOG.info("sub reconnected");
}
}
LOG.info("sub is done");
} finally {
try {
close(true);
} catch (Exception e) {
e.printStackTrace();
}
}
return Boolean.TRUE;
}
void connect() throws Exception {
connection = factory.createConnection();
connection.setClientID(clientId);
connection.start();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
topic = session.createTopic(topicName);
consumer = session.createDurableSubscriber(topic, subName);
}
void close(boolean unsubscribe) throws Exception {
if (connection != null) {
connection.stop();
}
if (consumer != null) {
consumer.close();
}
if (session != null) {
if (unsubscribe) {
session.unsubscribe(subName);
}
session.close();
}
if (connection != null) {
connection.close();
}
}
};
ArrayList<Future<Boolean>> results = new ArrayList<Future<Boolean>>();
results.add(threadPool.submit(publisher));
results.add(threadPool.submit(durableSubscriber));
for (Future<Boolean> result : results) {
assertTrue(result.get());
}
}
}