/**
* 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.Arrays;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQPrefetchPolicy;
import org.apache.activemq.advisory.AdvisorySupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.region.Topic;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.command.ActiveMQTopic;
import org.apache.activemq.util.DefaultTestAppender;
import org.apache.activemq.util.Wait;
import org.apache.log4j.Appender;
import org.apache.log4j.Level;
import org.apache.log4j.spi.LoggingEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TopicProducerFlowControlTest extends TestCase implements MessageListener {
private static final Logger LOG = LoggerFactory.getLogger(TopicProducerFlowControlTest.class);
private static final String brokerName = "testBroker";
private static final String brokerUrl = "vm://" + brokerName;
protected static final int destinationMemLimit = 2097152; // 2MB
private static final AtomicLong produced = new AtomicLong();
private static final AtomicLong consumed = new AtomicLong();
private static final int numMessagesToSend = 50000;
private BrokerService broker;
protected void setUp() throws Exception {
// Setup and start the broker
broker = new BrokerService();
broker.setBrokerName(brokerName);
broker.setPersistent(false);
broker.setSchedulerSupport(false);
broker.setUseJmx(false);
broker.setUseShutdownHook(false);
broker.addConnector(brokerUrl);
// Setup the destination policy
PolicyMap pm = new PolicyMap();
// Setup the topic destination policy
PolicyEntry tpe = new PolicyEntry();
tpe.setTopic(">");
tpe.setMemoryLimit(destinationMemLimit);
tpe.setProducerFlowControl(true);
tpe.setAdvisoryWhenFull(true);
tpe.setBlockedProducerWarningInterval(2000);
pm.setPolicyEntries(Arrays.asList(new PolicyEntry[]{tpe}));
setDestinationPolicy(broker, pm);
// Start the broker
broker.start();
broker.waitUntilStarted();
}
protected void setDestinationPolicy(BrokerService broker, PolicyMap pm) {
broker.setDestinationPolicy(pm);
}
protected void tearDown() throws Exception {
broker.stop();
broker.waitUntilStopped();
}
public void testTopicProducerFlowControl() throws Exception {
// Create the connection factory
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(brokerUrl);
connectionFactory.setAlwaysSyncSend(true);
connectionFactory.setProducerWindowSize(1024);
ActiveMQPrefetchPolicy prefetchPolicy = new ActiveMQPrefetchPolicy();
prefetchPolicy.setAll(5000);
connectionFactory.setPrefetchPolicy(prefetchPolicy);
// Start the test destination listener
Connection c = connectionFactory.createConnection();
c.start();
Session listenerSession = c.createSession(false, 1);
Destination destination = createDestination(listenerSession);
listenerSession.createConsumer(destination).setMessageListener(new TopicProducerFlowControlTest());
final AtomicInteger blockedCounter = new AtomicInteger(0);
listenerSession.createConsumer(new ActiveMQTopic(AdvisorySupport.FULL_TOPIC_PREFIX + ">")).setMessageListener(new MessageListener() {
@Override
public void onMessage(Message message) {
try {
if (blockedCounter.get() % 100 == 0) {
LOG.info("Got full advisory, usageName: " +
message.getStringProperty(AdvisorySupport.MSG_PROPERTY_USAGE_NAME) +
", usageCount: " +
message.getLongProperty(AdvisorySupport.MSG_PROPERTY_USAGE_COUNT)
+ ", blockedCounter: " + blockedCounter.get());
}
blockedCounter.incrementAndGet();
} catch (Exception error) {
error.printStackTrace();
LOG.error("missing advisory property", error);
}
}
});
final AtomicInteger warnings = new AtomicInteger();
Appender appender = new DefaultTestAppender() {
@Override
public void doAppend(LoggingEvent event) {
if (event.getLevel().equals(Level.INFO) && event.getMessage().toString().contains("Usage Manager memory limit reached")) {
LOG.info("received log message: " + event.getMessage());
warnings.incrementAndGet();
}
}
};
org.apache.log4j.Logger log4jLogger =
org.apache.log4j.Logger.getLogger(Topic.class);
log4jLogger.addAppender(appender);
try {
// Start producing the test messages
final Session session = connectionFactory.createConnection().createSession(false, Session.AUTO_ACKNOWLEDGE);
final MessageProducer producer = session.createProducer(destination);
Thread producingThread = new Thread("Producing Thread") {
public void run() {
try {
for (long i = 0; i < numMessagesToSend; i++) {
producer.send(session.createTextMessage("test"));
long count = produced.incrementAndGet();
if (count % 10000 == 0) {
LOG.info("Produced " + count + " messages");
}
}
} catch (Throwable ex) {
ex.printStackTrace();
} finally {
try {
producer.close();
session.close();
} catch (Exception e) {
}
}
}
};
producingThread.start();
Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return consumed.get() == numMessagesToSend;
}
}, 5 * 60 * 1000); // give it plenty of time before failing
assertEquals("Didn't produce all messages", numMessagesToSend, produced.get());
assertEquals("Didn't consume all messages", numMessagesToSend, consumed.get());
assertTrue("Producer got blocked", Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return blockedCounter.get() > 0;
}
}, 5 * 1000));
LOG.info("BlockedCount: " + blockedCounter.get() + ", Warnings:" + warnings.get());
assertTrue("got a few warnings", warnings.get() > 1);
assertTrue("warning limited", warnings.get() < blockedCounter.get());
} finally {
log4jLogger.removeAppender(appender);
}
}
protected Destination createDestination(Session listenerSession) throws Exception {
return new ActiveMQTopic("test");
}
@Override
public void onMessage(Message message) {
long count = consumed.incrementAndGet();
if (count % 100 == 0) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
}
}
if (count % 10000 == 0) {
LOG.info("\tConsumed " + count + " messages");
}
}
}