| /** |
| * 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.advisory; |
| |
| import java.util.concurrent.ArrayBlockingQueue; |
| import java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.TimeUnit; |
| |
| import javax.jms.Connection; |
| import javax.jms.JMSException; |
| import javax.jms.MessageProducer; |
| import javax.jms.Session; |
| |
| import org.apache.activemq.EmbeddedBrokerTestSupport; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * |
| * |
| */ |
| public class ProducerListenerTest extends EmbeddedBrokerTestSupport implements ProducerListener { |
| private static final Logger LOG = LoggerFactory.getLogger(ProducerListenerTest.class); |
| |
| protected Session consumerSession1; |
| protected Session consumerSession2; |
| protected int consumerCounter; |
| protected ProducerEventSource producerEventSource; |
| protected BlockingQueue<ProducerEvent> eventQueue = new ArrayBlockingQueue<ProducerEvent>(1000); |
| private Connection connection; |
| |
| public void testProducerEvents() throws Exception { |
| producerEventSource.start(); |
| |
| consumerSession1 = createProducer(); |
| assertConsumerEvent(1, true); |
| |
| consumerSession2 = createProducer(); |
| assertConsumerEvent(2, true); |
| |
| consumerSession1.close(); |
| consumerSession1 = null; |
| assertConsumerEvent(1, false); |
| |
| consumerSession2.close(); |
| consumerSession2 = null; |
| assertConsumerEvent(0, false); |
| } |
| |
| public void testListenWhileAlreadyConsumersActive() throws Exception { |
| consumerSession1 = createProducer(); |
| consumerSession2 = createProducer(); |
| |
| producerEventSource.start(); |
| assertConsumerEvent(2, true); |
| assertConsumerEvent(2, true); |
| |
| consumerSession1.close(); |
| consumerSession1 = null; |
| assertConsumerEvent(1, false); |
| |
| consumerSession2.close(); |
| consumerSession2 = null; |
| assertConsumerEvent(0, false); |
| } |
| |
| public void onProducerEvent(ProducerEvent event) { |
| eventQueue.add(event); |
| } |
| |
| protected void setUp() throws Exception { |
| super.setUp(); |
| |
| connection = createConnection(); |
| connection.start(); |
| producerEventSource = new ProducerEventSource(connection, destination); |
| producerEventSource.setProducerListener(this); |
| } |
| |
| protected void tearDown() throws Exception { |
| if (producerEventSource != null) { |
| producerEventSource.stop(); |
| } |
| if (consumerSession2 != null) { |
| consumerSession2.close(); |
| } |
| if (consumerSession1 != null) { |
| consumerSession1.close(); |
| } |
| if (connection != null) { |
| connection.close(); |
| } |
| super.tearDown(); |
| } |
| |
| protected void assertConsumerEvent(int count, boolean started) throws InterruptedException { |
| ProducerEvent event = waitForProducerEvent(); |
| assertEquals("Producer count", count, event.getProducerCount()); |
| assertEquals("started", started, event.isStarted()); |
| } |
| |
| protected Session createProducer() throws JMSException { |
| final String consumerText = "Consumer: " + (++consumerCounter); |
| LOG.info("Creating consumer: " + consumerText + " on destination: " + destination); |
| |
| Session answer = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| MessageProducer producer = answer.createProducer(destination); |
| return answer; |
| } |
| |
| protected ProducerEvent waitForProducerEvent() throws InterruptedException { |
| ProducerEvent answer = eventQueue.poll(100000, TimeUnit.MILLISECONDS); |
| assertTrue("Should have received a consumer event!", answer != null); |
| return answer; |
| } |
| |
| } |