| /** |
| * 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.camel.component.jms.issues; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import javax.jms.ConnectionFactory; |
| |
| import org.apache.camel.CamelContext; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.component.jms.CamelJmsTestHelper; |
| import org.apache.camel.test.junit4.CamelTestSupport; |
| import org.junit.Test; |
| import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor; |
| |
| import static org.apache.camel.component.jms.JmsComponent.jmsComponentAutoAcknowledge; |
| |
| /** |
| * Concurrent consumer with JMSReply test. |
| */ |
| public class JmsConcurrentConsumersTest extends CamelTestSupport { |
| |
| @Test |
| public void testConcurrentConsumersWithReply() throws Exception { |
| // latch for the 5 exchanges we expect |
| final CountDownLatch latch = new CountDownLatch(5); |
| |
| // setup a task executor to be able send the messages in parallel |
| ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor(); |
| executor.setCorePoolSize(5); |
| executor.afterPropertiesSet(); |
| for (int i = 0; i < 5; i++) { |
| final int count = i; |
| executor.execute(new Runnable() { |
| public void run() { |
| // request body is InOut pattern and thus we expect a reply (JMSReply) |
| Object response = template.requestBody("activemq:a", "World #" + count); |
| assertEquals("Bye World #" + count, response); |
| latch.countDown(); |
| } |
| }); |
| } |
| |
| long start = System.currentTimeMillis(); |
| |
| // wait for test completion, timeout after 30 sec to let other unit test run to not wait forever |
| latch.await(30000L, TimeUnit.MILLISECONDS); |
| assertEquals("Latch should be zero", 0, latch.getCount()); |
| |
| long delta = System.currentTimeMillis() - start; |
| assertTrue("Should be faster than 20000 millis, took " + delta + " millis", delta < 20000L); |
| } |
| |
| protected CamelContext createCamelContext() throws Exception { |
| CamelContext camelContext = super.createCamelContext(); |
| |
| ConnectionFactory connectionFactory = CamelJmsTestHelper.createConnectionFactory(); |
| camelContext.addComponent("activemq", jmsComponentAutoAcknowledge(connectionFactory)); |
| |
| return camelContext; |
| } |
| |
| protected RouteBuilder createRouteBuilder() throws Exception { |
| return new RouteBuilder() { |
| public void configure() throws Exception { |
| from("activemq:a?concurrentConsumers=3").to("activemq:b?concurrentConsumers=3"); |
| |
| from("activemq:b?concurrentConsumers=3").process(new Processor() { |
| public void process(Exchange exchange) throws Exception { |
| String body = exchange.getIn().getBody(String.class); |
| // sleep a little to simulate heavy work and force concurrency processing |
| Thread.sleep(3000); |
| exchange.getOut().setBody("Bye " + body); |
| } |
| }); |
| } |
| }; |
| } |
| |
| } |