private RabbitTemplate createTemplate(int concurrentConsumers) {
RabbitTemplate template = new RabbitTemplate();
CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
connectionFactory.setHost("localhost");
connectionFactory.setChannelCacheSize(concurrentConsumers);
connectionFactory.setPort(BrokerTestUtils.getPort());
template.setConnectionFactory(connectionFactory);
if (messageConverter == null) {
SimpleMessageConverter messageConverter = new SimpleMessageConverter();
messageConverter.setCreateMessageIds(true);
this.messageConverter = messageConverter;
}
template.setMessageConverter(messageConverter);
return template;
}
private void doTest(int concurrentConsumers, ContainerConfigurer configurer) {
int messageCount = 10;
RabbitTemplate template = new RabbitTemplate();
CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
connectionFactory.setHost("localhost");
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()));
connectionFactory.destroy();
}