org.springframework.amqp.rabbit.listener.MessageListenerContainerMultipleQueueIntegrationTests.java Source code

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Here is the source code for org.springframework.amqp.rabbit.listener.MessageListenerContainerMultipleQueueIntegrationTests.java

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/*
 * Copyright 2002-2011 the original author or authors.
 *
 * Licensed 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.springframework.amqp.rabbit.listener;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.log4j.Level;

import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;

import org.springframework.amqp.core.AcknowledgeMode;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter;
import org.springframework.amqp.rabbit.test.BrokerRunning;
import org.springframework.amqp.rabbit.test.BrokerTestUtils;
import org.springframework.amqp.rabbit.test.Log4jLevelAdjuster;
import org.springframework.amqp.support.converter.SimpleMessageConverter;

/**
 * @author Mark Fisher
 */
public class MessageListenerContainerMultipleQueueIntegrationTests {

    private static Log logger = LogFactory.getLog(MessageListenerContainerMultipleQueueIntegrationTests.class);

    private static Queue queue1 = new Queue("test.queue.1");

    private static Queue queue2 = new Queue("test.queue.2");

    @Rule
    public BrokerRunning brokerIsRunningAndQueue1Empty = BrokerRunning.isRunningWithEmptyQueues(queue1);

    @Rule
    public BrokerRunning brokerIsRunningAndQueue2Empty = BrokerRunning.isRunningWithEmptyQueues(queue2);

    @Rule
    public Log4jLevelAdjuster logLevels = new Log4jLevelAdjuster(Level.INFO, RabbitTemplate.class,
            SimpleMessageListenerContainer.class, BlockingQueueConsumer.class);

    @Rule
    public ExpectedException exception = ExpectedException.none();

    @Test
    public void testMultipleQueues() {
        doTest(1, new ContainerConfigurer() {
            public void configure(SimpleMessageListenerContainer container) {
                container.setQueues(queue1, queue2);
            }
        });
    }

    @Test
    public void testMultipleQueueNames() {
        doTest(1, new ContainerConfigurer() {
            public void configure(SimpleMessageListenerContainer container) {
                container.setQueueNames(queue1.getName(), queue2.getName());
            }
        });
    }

    @Test
    public void testMultipleQueuesWithConcurrentConsumers() {
        doTest(3, new ContainerConfigurer() {
            public void configure(SimpleMessageListenerContainer container) {
                container.setQueues(queue1, queue2);
            }
        });
    }

    @Test
    public void testMultipleQueueNamesWithConcurrentConsumers() {
        doTest(3, new ContainerConfigurer() {
            public void configure(SimpleMessageListenerContainer container) {
                container.setQueueNames(queue1.getName(), queue2.getName());
            }
        });
    }

    private void doTest(int concurrentConsumers, ContainerConfigurer configurer) {
        int messageCount = 10;
        RabbitTemplate template = new RabbitTemplate();
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
        connectionFactory.setChannelCacheSize(concurrentConsumers);
        connectionFactory.setPort(BrokerTestUtils.getPort());
        template.setConnectionFactory(connectionFactory);
        SimpleMessageConverter messageConverter = new SimpleMessageConverter();
        messageConverter.setCreateMessageIds(true);
        template.setMessageConverter(messageConverter);
        for (int i = 0; i < messageCount; i++) {
            template.convertAndSend(queue1.getName(), new Integer(i));
            template.convertAndSend(queue2.getName(), new Integer(i));
        }
        final SimpleMessageListenerContainer container = new SimpleMessageListenerContainer(connectionFactory);
        final CountDownLatch latch = new CountDownLatch(messageCount * 2);
        PojoListener listener = new PojoListener(latch);
        container.setMessageListener(new MessageListenerAdapter(listener));
        container.setAcknowledgeMode(AcknowledgeMode.AUTO);
        container.setChannelTransacted(true);
        container.setConcurrentConsumers(concurrentConsumers);
        configurer.configure(container);
        container.afterPropertiesSet();
        container.start();
        try {
            int timeout = Math.min(1 + messageCount / concurrentConsumers, 30);
            boolean waited = latch.await(timeout, TimeUnit.SECONDS);
            logger.info("All messages recovered: " + waited);
            assertEquals(concurrentConsumers, container.getActiveConsumerCount());
            assertTrue("Timed out waiting for messages", waited);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new IllegalStateException("unexpected interruption");
        } finally {
            container.shutdown();
            assertEquals(0, container.getActiveConsumerCount());
        }
        assertNull(template.receiveAndConvert(queue1.getName()));
        assertNull(template.receiveAndConvert(queue2.getName()));
    }

    private interface ContainerConfigurer {
        void configure(SimpleMessageListenerContainer container);
    }

    @SuppressWarnings("unused")
    private static class PojoListener {

        private AtomicInteger count = new AtomicInteger();

        private final CountDownLatch latch;

        public PojoListener(CountDownLatch latch) {
            this.latch = latch;
        }

        public void handleMessage(int value) throws Exception {
            logger.debug(value + ":" + count.getAndIncrement());
            latch.countDown();
        }

        public int getCount() {
            return count.get();
        }
    }

}