ActiveMQ example source code file (ExpiredMessagesWithNoConsumerTest.java)
The ActiveMQ ExpiredMessagesWithNoConsumerTest.java source code/**
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* this work for additional information regarding copyright ownership.
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.activemq.usecases;
import java.util.concurrent.CountDownLatch;
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.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.management.ObjectName;
import junit.framework.Test;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.CombinationTestSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.jmx.DestinationViewMBean;
import org.apache.activemq.broker.region.policy.FilePendingQueueMessageStoragePolicy;
import org.apache.activemq.broker.region.policy.PendingQueueMessageStoragePolicy;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.broker.region.policy.VMPendingQueueMessageStoragePolicy;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.util.Wait;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ExpiredMessagesWithNoConsumerTest extends CombinationTestSupport {
private static final Logger LOG = LoggerFactory.getLogger(ExpiredMessagesWithNoConsumerTest.class);
BrokerService broker;
Connection connection;
Session session;
MessageProducer producer;
public ActiveMQDestination destination = new ActiveMQQueue("test");
public boolean optimizedDispatch = true;
public PendingQueueMessageStoragePolicy pendingQueuePolicy;
public static Test suite() {
return suite(ExpiredMessagesWithNoConsumerTest.class);
}
public static void main(String[] args) {
junit.textui.TestRunner.run(suite());
}
protected void createBrokerWithMemoryLimit() throws Exception {
doCreateBroker(true);
}
protected void createBroker() throws Exception {
doCreateBroker(false);
}
private void doCreateBroker(boolean memoryLimit) throws Exception {
broker = new BrokerService();
broker.setBrokerName("localhost");
broker.setUseJmx(true);
broker.setDeleteAllMessagesOnStartup(true);
broker.addConnector("tcp://localhost:61616");
PolicyMap policyMap = new PolicyMap();
PolicyEntry defaultEntry = new PolicyEntry();
defaultEntry.setOptimizedDispatch(optimizedDispatch );
defaultEntry.setExpireMessagesPeriod(800);
defaultEntry.setMaxExpirePageSize(800);
defaultEntry.setPendingQueuePolicy(pendingQueuePolicy);
if (memoryLimit) {
// so memory is not consumed by DLQ turn if off
defaultEntry.setDeadLetterStrategy(null);
defaultEntry.setMemoryLimit(200 * 1000);
}
policyMap.setDefaultEntry(defaultEntry);
broker.setDestinationPolicy(policyMap);
broker.start();
broker.waitUntilStarted();
}
public void initCombosForTestExpiredMessagesWithNoConsumer() {
addCombinationValues("optimizedDispatch", new Object[] {Boolean.TRUE, Boolean.FALSE});
addCombinationValues("pendingQueuePolicy", new Object[] {null, new VMPendingQueueMessageStoragePolicy(), new FilePendingQueueMessageStoragePolicy()});
}
public void testExpiredMessagesWithNoConsumer() throws Exception {
createBrokerWithMemoryLimit();
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("tcp://localhost:61616");
connection = factory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
producer = session.createProducer(destination);
producer.setTimeToLive(1000);
connection.start();
final long sendCount = 2000;
final Thread producingThread = new Thread("Producing Thread") {
public void run() {
try {
int i = 0;
long tStamp = System.currentTimeMillis();
while (i++ < sendCount) {
producer.send(session.createTextMessage("test"));
if (i%100 == 0) {
LOG.info("sent: " + i + " @ " + ((System.currentTimeMillis() - tStamp) / 100) + "m/ms");
tStamp = System.currentTimeMillis() ;
}
}
} catch (Throwable ex) {
ex.printStackTrace();
}
}
};
producingThread.start();
assertTrue("producer completed within time", Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
producingThread.join(1000);
return !producingThread.isAlive();
}
}));
final DestinationViewMBean view = createView(destination);
Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
LOG.info("enqueue=" + view.getEnqueueCount() + ", dequeue=" + view.getDequeueCount()
+ ", inflight=" + view.getInFlightCount() + ", expired= " + view.getExpiredCount()
+ ", size= " + view.getQueueSize());
return sendCount == view.getExpiredCount();
}
});
LOG.info("enqueue=" + view.getEnqueueCount() + ", dequeue=" + view.getDequeueCount()
+ ", inflight=" + view.getInFlightCount() + ", expired= " + view.getExpiredCount()
+ ", size= " + view.getQueueSize());
assertEquals("All sent have expired", sendCount, view.getExpiredCount());
assertEquals("memory usage goes to duck egg", 0, view.getMemoryPercentUsage());
}
// first ack delivered after expiry
public void testExpiredMessagesWithVerySlowConsumer() throws Exception {
createBroker();
final long queuePrefetch = 600;
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("tcp://localhost:61616?jms.prefetchPolicy.queuePrefetch=" + queuePrefetch);
connection = factory.createConnection();
session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
producer = session.createProducer(destination);
final int ttl = 4000;
producer.setTimeToLive(ttl);
final long sendCount = 1500;
final CountDownLatch receivedOneCondition = new CountDownLatch(1);
final CountDownLatch waitCondition = new CountDownLatch(1);
MessageConsumer consumer = session.createConsumer(destination);
consumer.setMessageListener(new MessageListener() {
public void onMessage(Message message) {
try {
LOG.info("Got my message: " + message);
receivedOneCondition.countDown();
waitCondition.await(60, TimeUnit.SECONDS);
LOG.info("acking message: " + message);
message.acknowledge();
} catch (Exception e) {
e.printStackTrace();
fail(e.toString());
}
}
});
connection.start();
final Thread producingThread = new Thread("Producing Thread") {
public void run() {
try {
int i = 0;
long tStamp = System.currentTimeMillis();
while (i++ < sendCount) {
producer.send(session.createTextMessage("test"));
if (i%100 == 0) {
LOG.info("sent: " + i + " @ " + ((System.currentTimeMillis() - tStamp) / 100) + "m/ms");
tStamp = System.currentTimeMillis() ;
}
}
} catch (Throwable ex) {
ex.printStackTrace();
}
}
};
producingThread.start();
assertTrue("got one message", receivedOneCondition.await(20, TimeUnit.SECONDS));
assertTrue("producer completed within time ", Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
producingThread.join(1000);
return !producingThread.isAlive();
}
}, Wait.MAX_WAIT_MILLIS * 2));
final DestinationViewMBean view = createView(destination);
assertTrue("all dispatched up to default prefetch ", Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return queuePrefetch == view.getDispatchCount();
}
}));
assertTrue("All sent have expired ", Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return sendCount == view.getExpiredCount();
}
}));
LOG.info("enqueue=" + view.getEnqueueCount() + ", dequeue=" + view.getDequeueCount()
+ ", inflight=" + view.getInFlightCount() + ", expired= " + view.getExpiredCount()
+ ", size= " + view.getQueueSize());
// let the ack happen
waitCondition.countDown();
Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
// consumer ackLater(delivery ack for expired messages) is based on half the prefetch value
// which will leave half of the prefetch pending till consumer close
return (queuePrefetch/2) -1 == view.getInFlightCount();
}
});
LOG.info("enqueue=" + view.getEnqueueCount() + ", dequeue=" + view.getDequeueCount()
+ ", inflight=" + view.getInFlightCount() + ", expired= " + view.getExpiredCount()
+ ", size= " + view.getQueueSize());
assertEquals("inflight reduces to half prefetch minus single delivered message", (queuePrefetch/2) -1, view.getInFlightCount());
assertEquals("size gets back to 0 ", 0, view.getQueueSize());
assertEquals("dequeues match sent/expired ", sendCount, view.getDequeueCount());
consumer.close();
Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return 0 == view.getInFlightCount();
}
});
assertEquals("inflight goes to zeor on close", 0, view.getInFlightCount());
LOG.info("done: " + getName());
}
public void testExpiredMessagesWithVerySlowConsumerCanContinue() throws Exception {
createBroker();
final long queuePrefetch = 600;
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("tcp://localhost:61616?jms.prefetchPolicy.queuePrefetch=" + queuePrefetch);
connection = factory.createConnection();
session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
producer = session.createProducer(destination);
final int ttl = 4000;
producer.setTimeToLive(ttl);
final long sendCount = 1500;
final CountDownLatch receivedOneCondition = new CountDownLatch(1);
final CountDownLatch waitCondition = new CountDownLatch(1);
final AtomicLong received = new AtomicLong();
MessageConsumer consumer = session.createConsumer(destination);
consumer.setMessageListener(new MessageListener() {
public void onMessage(Message message) {
try {
LOG.info("Got my message: " + message);
receivedOneCondition.countDown();
received.incrementAndGet();
waitCondition.await(60, TimeUnit.SECONDS);
LOG.info("acking message: " + message);
message.acknowledge();
} catch (Exception e) {
e.printStackTrace();
fail(e.toString());
}
}
});
connection.start();
final Thread producingThread = new Thread("Producing Thread") {
public void run() {
try {
int i = 0;
long tStamp = System.currentTimeMillis();
while (i++ < sendCount) {
producer.send(session.createTextMessage("test"));
if (i%100 == 0) {
LOG.info("sent: " + i + " @ " + ((System.currentTimeMillis() - tStamp) / 100) + "m/ms");
tStamp = System.currentTimeMillis() ;
}
}
} catch (Throwable ex) {
ex.printStackTrace();
}
}
};
producingThread.start();
assertTrue("got one message", receivedOneCondition.await(20, TimeUnit.SECONDS));
assertTrue("producer completed within time ", Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
producingThread.join(1000);
return !producingThread.isAlive();
}
}));
final DestinationViewMBean view = createView(destination);
assertTrue("all dispatched up to default prefetch ", Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return queuePrefetch == view.getDispatchCount();
}
}));
assertTrue("All sent have expired ", Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return sendCount == view.getExpiredCount();
}
}));
LOG.info("enqueue=" + view.getEnqueueCount() + ", dequeue=" + view.getDequeueCount()
+ ", inflight=" + view.getInFlightCount() + ", expired= " + view.getExpiredCount()
+ ", size= " + view.getQueueSize());
// let the ack happen
waitCondition.countDown();
Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
// consumer ackLater(delivery ack for expired messages) is based on half the prefetch value
// which will leave half of the prefetch pending till consumer close
return (queuePrefetch/2) -1 == view.getInFlightCount();
}
});
LOG.info("enqueue=" + view.getEnqueueCount() + ", dequeue=" + view.getDequeueCount()
+ ", inflight=" + view.getInFlightCount() + ", expired= " + view.getExpiredCount()
+ ", size= " + view.getQueueSize());
assertEquals("inflight reduces to half prefetch minus single delivered message", (queuePrefetch/2) -1, view.getInFlightCount());
assertEquals("size gets back to 0 ", 0, view.getQueueSize());
assertEquals("dequeues match sent/expired ", sendCount, view.getDequeueCount());
// produce some more
producer.setTimeToLive(0);
for (int i=0; i<sendCount; i++) {
producer.send(session.createTextMessage("test-" + i));
}
Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return received.get() >= sendCount;
}
});
consumer.close();
Wait.waitFor(new Wait.Condition() {
public boolean isSatisified() throws Exception {
return 0 == view.getInFlightCount();
}
});
assertEquals("inflight goes to zeor on close", 0, view.getInFlightCount());
LOG.info("done: " + getName());
}
protected DestinationViewMBean createView(ActiveMQDestination destination) throws Exception {
String domain = "org.apache.activemq";
ObjectName name;
if (destination.isQueue()) {
name = new ObjectName(domain + ":BrokerName=localhost,Type=Queue,Destination=test");
} else {
name = new ObjectName(domain + ":BrokerName=localhost,Type=Topic,Destination=test");
}
return (DestinationViewMBean) broker.getManagementContext().newProxyInstance(name, DestinationViewMBean.class,
true);
}
protected void tearDown() throws Exception {
connection.stop();
broker.stop();
broker.waitUntilStopped();
}
}
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