| /** |
| * 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.amqp; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import javax.jms.Connection; |
| import javax.jms.ExceptionListener; |
| import javax.jms.JMSException; |
| import javax.jms.MessageConsumer; |
| import javax.jms.MessageProducer; |
| import javax.jms.Queue; |
| 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; |
| import org.apache.qpid.jms.JmsConnection; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TestName; |
| |
| public class JMSClientProducerFlowSendFailIfNoSpace extends JMSClientTestSupport { |
| |
| @Rule |
| public TestName name = new TestName(); |
| |
| // used to test sendFailIfNoSpace on SystemUsage |
| protected final AtomicBoolean gotResourceException = new AtomicBoolean(false); |
| |
| @Override |
| protected void performAdditionalConfiguration(BrokerService brokerService) { |
| |
| // 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); |
| brokerService.setDestinationPolicy(policyMap); |
| |
| brokerService.getSystemUsage().setSendFailIfNoSpace(true); |
| } |
| |
| @Test(timeout = 60000) |
| public void testPubisherRecoverAfterBlock() throws Exception { |
| connection = createConnection(); |
| |
| final Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE); |
| final Queue queueA = session.createQueue(name.getMethodName()); |
| 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 |
| LOG.info("Caught excepted exception: {}", e.getMessage()); |
| } |
| } |
| } |
| }; |
| 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(500); |
| if (msg != null) { |
| msg.acknowledge(); |
| } |
| } |
| |
| keepGoing.set(false); |
| } |
| |
| @Test(timeout = 60000) |
| public void testPubisherRecoverAfterBlockWithSyncSend() throws Exception { |
| connection = createConnection(false, false); |
| |
| final Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE); |
| final Queue queueA = session.createQueue(name.getMethodName()); |
| 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 jmsEx) { |
| LOG.debug("Client caught error: {} {}", jmsEx.getClass().getName(), jmsEx.getMessage()); |
| gotResourceException.set(true); |
| exceptionCount.incrementAndGet(); |
| } |
| } |
| } |
| }; |
| thread.start(); |
| waitForBlockedOrResourceLimit(); |
| |
| // 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(500); |
| if (msg != null) { |
| msg.acknowledge(); |
| } |
| } |
| |
| assertTrue("we were blocked at least 5 times", 5 < exceptionCount.get()); |
| keepGoing.set(false); |
| } |
| |
| protected void waitForBlockedOrResourceLimit() throws InterruptedException { |
| waitForBlockedOrResourceLimit(new AtomicBoolean(false)); |
| } |
| |
| protected void waitForBlockedOrResourceLimit(final AtomicBoolean done) throws InterruptedException { |
| while (true) { |
| Thread.sleep(100); |
| // the producer is blocked once the done flag stays true or there is a resource exception |
| if (done.get() || gotResourceException.get()) { |
| break; |
| } |
| done.set(true); |
| } |
| } |
| |
| @Override |
| protected Connection createConnection() throws JMSException { |
| return createConnection(true, true); |
| } |
| |
| protected Connection createConnection(boolean async, boolean exceptionListener) throws JMSException { |
| connection = super.createConnection(); |
| |
| JmsConnection jmsConnection = (JmsConnection) connection; |
| jmsConnection.setForceAsyncSend(async); |
| |
| if (exceptionListener) { |
| connection.setExceptionListener(new ExceptionListener() { |
| @Override |
| public void onException(JMSException jmsEx) { |
| LOG.debug("Client caught error: {} {}", jmsEx.getClass().getName(), jmsEx.getMessage()); |
| gotResourceException.set(true); |
| } |
| }); |
| } |
| |
| connection.start(); |
| |
| return connection; |
| } |
| } |