/**
* 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.transport.failover;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import java.util.Vector;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.artemis.core.protocol.openwire.OpenWireConnection;
import org.apache.activemq.artemis.jms.server.embedded.EmbeddedJMS;
import org.apache.activemq.broker.artemiswrapper.OpenwireArtemisBaseTest;
import org.jboss.byteman.contrib.bmunit.BMRule;
import org.jboss.byteman.contrib.bmunit.BMRules;
import org.jboss.byteman.contrib.bmunit.BMUnitRunner;
import org.junit.After;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.junit.Assert.assertTrue;
// see: https://issues.apache.org/activemq/browse/AMQ-2877
@RunWith(BMUnitRunner.class)
public class FailoverPrefetchZeroTest extends OpenwireArtemisBaseTest {
private static final Logger LOG = LoggerFactory.getLogger(FailoverPrefetchZeroTest.class);
private static final String QUEUE_NAME = "FailoverPrefetchZero";
private static final AtomicBoolean doByteman = new AtomicBoolean(false);
private static final CountDownLatch pullDone = new CountDownLatch(1);
private static CountDownLatch brokerStopLatch = new CountDownLatch(1);
private String url = newURI(0);
final int prefetch = 0;
private static EmbeddedJMS broker;
@After
public void stopBroker() throws Exception {
if (broker != null) {
broker.stop();
}
}
public void startBroker() throws Exception {
broker = createBroker();
broker.start();
}
@Test
@BMRules(
rules = {@BMRule(
name = "set no return response and stop the broker",
targetClass = "org.apache.activemq.artemis.core.protocol.openwire.OpenWireConnection$CommandProcessor",
targetMethod = "processMessagePull",
targetLocation = "ENTRY",
action = "org.apache.activemq.transport.failover.FailoverPrefetchZeroTest.holdResponseAndStopBroker($0)")})
public void testPrefetchZeroConsumerThroughRestart() throws Exception {
broker = createBroker();
broker.start();
doByteman.set(true);
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("failover:(" + url + ")");
cf.setWatchTopicAdvisories(false);
final ActiveMQConnection connection = (ActiveMQConnection) cf.createConnection();
connection.start();
final Session consumerSession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
final Queue destination = consumerSession.createQueue(QUEUE_NAME + "?consumer.prefetchSize=" + prefetch);
final MessageConsumer consumer = consumerSession.createConsumer(destination);
produceMessage(consumerSession, destination, 1);
final CountDownLatch receiveDone = new CountDownLatch(1);
final Vector<Message> received = new Vector<>();
new Thread() {
@Override
public void run() {
try {
LOG.info("receive one...");
Message msg = consumer.receive(30000);
if (msg != null) {
received.add(msg);
}
receiveDone.countDown();
LOG.info("done receive");
} catch (Exception e) {
e.printStackTrace();
}
}
}.start();
// will be stopped by the plugin
assertTrue("pull completed on broker", pullDone.await(30, TimeUnit.SECONDS));
brokerStopLatch.await();
doByteman.set(false);
broker = createBroker();
broker.start();
assertTrue("receive completed through failover", receiveDone.await(30, TimeUnit.SECONDS));
assertTrue("we got our message:", !received.isEmpty());
connection.close();
}
private void produceMessage(final Session producerSession, Queue destination, long count) throws JMSException {
MessageProducer producer = producerSession.createProducer(destination);
for (int i = 0; i < count; i++) {
TextMessage message = producerSession.createTextMessage("Test message " + i);
producer.send(message);
}
producer.close();
}
public static void holdResponseAndStopBroker(final OpenWireConnection.CommandProcessor context) {
new Exception("trace").printStackTrace();
if (doByteman.get()) {
context.getContext().setDontSendReponse(true);
pullDone.countDown();
new Thread() {
@Override
public void run() {
try {
broker.stop();
} catch (Exception e) {
e.printStackTrace();
} finally {
brokerStopLatch.countDown();
}
}
}.start();
}
}
}