/*
* Copyright (C) Scott Cranton and Jakub Korab
* https://github.com/CamelCookbook
*
* 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.camelcookbook.transactions.jmstransaction;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.camel.component.ActiveMQComponent;
import org.apache.camel.CamelContext;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.impl.SimpleRegistry;
import org.apache.camel.spring.spi.SpringTransactionPolicy;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.camelcookbook.transactions.utils.EmbeddedActiveMQBroker;
import org.camelcookbook.transactions.utils.ExceptionThrowingProcessor;
import org.junit.Rule;
import org.junit.Test;
import org.springframework.jms.connection.JmsTransactionManager;
/**
* Demonstrates the use of a transaction manager with a JMS component.
*/
public class JmsTransactionTest extends CamelTestSupport {
public static final int MAX_WAIT_TIME = 1000;
@Rule
public EmbeddedActiveMQBroker broker = new EmbeddedActiveMQBroker("embeddedBroker");
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new JmsTransactionRouteBuilder();
}
@Override
protected CamelContext createCamelContext() throws Exception {
SimpleRegistry registry = new SimpleRegistry();
ActiveMQConnectionFactory connectionFactory =
new ActiveMQConnectionFactory();
connectionFactory.setBrokerURL(broker.getTcpConnectorUri());
registry.put("connectionFactory", connectionFactory);
JmsTransactionManager jmsTransactionManager = new JmsTransactionManager();
jmsTransactionManager.setConnectionFactory(connectionFactory);
registry.put("jmsTransactionManager", jmsTransactionManager);
SpringTransactionPolicy policy = new SpringTransactionPolicy();
policy.setTransactionManager(jmsTransactionManager);
policy.setPropagationBehaviorName("PROPAGATION_REQUIRED");
registry.put("PROPAGATION_REQUIRED", policy);
CamelContext camelContext = new DefaultCamelContext(registry);
ActiveMQComponent activeMQComponent = new ActiveMQComponent();
activeMQComponent.setConnectionFactory(connectionFactory);
activeMQComponent.setTransactionManager(jmsTransactionManager);
camelContext.addComponent("jms", activeMQComponent);
return camelContext;
}
@Test
public void testTransactedExceptionThrown() throws InterruptedException {
String message = "this message will explode";
MockEndpoint mockOut = getMockEndpoint("mock:out");
mockOut.whenAnyExchangeReceived(new ExceptionThrowingProcessor());
// even though the route throws an exception, we don't have to deal with it here as we
// don't send the message to the route directly, but to the broker, which acts as a middleman.
template.sendBody("jms:inbound", message);
// when transacted, ActiveMQ receives a failed signal when the exception is thrown
// the message is placed into a dead letter queue
assertEquals(message, consumer.receiveBody("jms:ActiveMQ.DLQ", MAX_WAIT_TIME, String.class));
// the sending operation is performed in the same transaction, so it is rolled back
assertNull(consumer.receiveBody("jms:outbound", MAX_WAIT_TIME, String.class));
}
}