/**
* 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;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import javax.jms.ConnectionFactory;
import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.ResourceAllocationException;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.activemq.broker.BrokerService;
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.broker.region.policy.VMPendingSubscriberMessageStoragePolicy;
public class ProducerFlowControlSendFailTest extends ProducerFlowControlTest {
protected BrokerService createBroker() throws Exception {
BrokerService service = new BrokerService();
service.setPersistent(false);
service.setUseJmx(false);
// Setup a destination policy where it takes only 1 message at a time.
PolicyMap policyMap = new PolicyMap();
PolicyEntry policy = new PolicyEntry();
policy.setMemoryLimit(1);
policy.setPendingSubscriberPolicy(new VMPendingSubscriberMessageStoragePolicy());
policy.setPendingQueuePolicy(new VMPendingQueueMessageStoragePolicy());
policy.setProducerFlowControl(true);
policyMap.setDefaultEntry(policy);
service.setDestinationPolicy(policyMap);
service.getSystemUsage().setSendFailIfNoSpace(true);
connector = service.addConnector("tcp://localhost:0");
return service;
}
@Override
public void test2ndPubisherWithStandardConnectionThatIsBlocked() throws Exception {
// with sendFailIfNoSpace set, there is no blocking of the connection
}
@Override
public void testAsyncPubisherRecoverAfterBlock() throws Exception {
// sendFail means no flowControllwindow as there is no producer ack, just an exception
}
@Override
public void testPubisherRecoverAfterBlock() throws Exception {
ActiveMQConnectionFactory factory = (ActiveMQConnectionFactory)createConnectionFactory();
// with sendFail, there must be no flowControllwindow
// sendFail is an alternative flow control mechanism that does not block
factory.setUseAsyncSend(true);
connection = (ActiveMQConnection)factory.createConnection();
connections.add(connection);
connection.start();
final Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
final MessageProducer producer = session.createProducer(queueA);
final AtomicBoolean keepGoing = new AtomicBoolean(true);
Thread thread = new Thread("Filler") {
@Override
public void run() {
while (keepGoing.get()) {
try {
producer.send(session.createTextMessage("Test message"));
if (gotResourceException.get()) {
// do not flood the broker with requests when full as we are sending async and they
// will be limited by the network buffers
Thread.sleep(200);
}
} catch (Exception e) {
// with async send, there will be no exceptions
e.printStackTrace();
}
}
}
};
thread.start();
waitForBlockedOrResourceLimit(new AtomicBoolean(false));
// resourceException on second message, resumption if we
// can receive 10
MessageConsumer consumer = session.createConsumer(queueA);
TextMessage msg;
for (int idx = 0; idx < 10; ++idx) {
msg = (TextMessage) consumer.receive(1000);
if (msg != null) {
msg.acknowledge();
}
}
keepGoing.set(false);
}
public void testPubisherRecoverAfterBlockWithSyncSend() throws Exception {
ActiveMQConnectionFactory factory = (ActiveMQConnectionFactory)createConnectionFactory();
factory.setExceptionListener(null);
factory.setUseAsyncSend(false);
connection = (ActiveMQConnection)factory.createConnection();
connections.add(connection);
connection.start();
final Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
final MessageProducer producer = session.createProducer(queueA);
final AtomicBoolean keepGoing = new AtomicBoolean(true);
final AtomicInteger exceptionCount = new AtomicInteger(0);
Thread thread = new Thread("Filler") {
@Override
public void run() {
while (keepGoing.get()) {
try {
producer.send(session.createTextMessage("Test message"));
} catch (JMSException arg0) {
if (arg0 instanceof ResourceAllocationException) {
gotResourceException.set(true);
exceptionCount.incrementAndGet();
}
}
}
}
};
thread.start();
waitForBlockedOrResourceLimit(new AtomicBoolean(false));
// resourceException on second message, resumption if we
// can receive 10
MessageConsumer consumer = session.createConsumer(queueA);
TextMessage msg;
for (int idx = 0; idx < 10; ++idx) {
msg = (TextMessage) consumer.receive(1000);
if (msg != null) {
msg.acknowledge();
}
}
assertTrue("we were blocked at least 5 times", 5 < exceptionCount.get());
keepGoing.set(false);
}
@Override
protected ConnectionFactory createConnectionFactory() throws Exception {
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(connector.getConnectUri());
connectionFactory.setExceptionListener(new ExceptionListener() {
public void onException(JMSException arg0) {
if (arg0 instanceof ResourceAllocationException) {
gotResourceException.set(true);
}
}
});
return connectionFactory;
}
}