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ActiveMQ example source code file (ActiveMQJmsHeaderRouteTest.java)

This example ActiveMQ source code file (ActiveMQJmsHeaderRouteTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

activemqqueue, activemqqueue, camelcontext, date, destination, exception, exception, jmsreplyto, mockendpoint, object, object, routebuilder, string, string, util

The ActiveMQ ActiveMQJmsHeaderRouteTest.java source code

/**
 * 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.camel.component;

import static org.apache.activemq.camel.component.ActiveMQComponent.activeMQComponent;

import java.util.Date;
import java.util.List;

import javax.jms.Destination;
import javax.jms.Message;

import org.apache.activemq.command.ActiveMQQueue;
import org.apache.camel.CamelContext;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.jms.JmsMessage;
import org.apache.camel.component.mock.AssertionClause;
import org.apache.camel.component.mock.MockEndpoint;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 */
public class ActiveMQJmsHeaderRouteTest extends ContextTestSupport {
    private static final transient Logger LOG = LoggerFactory.getLogger(ActiveMQJmsHeaderRouteTest.class);

    protected Object expectedBody = "<time>" + new Date() + "";
    protected ActiveMQQueue replyQueue = new ActiveMQQueue("test.reply.queue");
    protected String correlationID = "ABC-123";
    protected String messageType = getClass().getName();

    public void testForwardingAMessageAcrossJMSKeepingCustomJMSHeaders() throws Exception {
        MockEndpoint resultEndpoint = resolveMandatoryEndpoint("mock:result", MockEndpoint.class);

        resultEndpoint.expectedBodiesReceived(expectedBody);
        AssertionClause firstMessageExpectations = resultEndpoint.message(0);
        firstMessageExpectations.header("cheese").isEqualTo(123);
        firstMessageExpectations.header("JMSReplyTo").isEqualTo(replyQueue);
        firstMessageExpectations.header("JMSCorrelationID").isEqualTo(correlationID);
        firstMessageExpectations.header("JMSType").isEqualTo(messageType);

        template.sendBodyAndHeader("activemq:test.a", expectedBody, "cheese", 123);

        resultEndpoint.assertIsSatisfied();

        List<Exchange> list = resultEndpoint.getReceivedExchanges();
        Exchange exchange = list.get(0);
        Object replyTo = exchange.getIn().getHeader("JMSReplyTo");
        LOG.info("Reply to is: " + replyTo);
        Destination destination = assertIsInstanceOf(Destination.class, replyTo);
        assertEquals("ReplyTo", replyQueue.toString(), destination.toString());
    }

    protected CamelContext createCamelContext() throws Exception {
        CamelContext camelContext = super.createCamelContext();

        // START SNIPPET: example
        camelContext.addComponent("activemq", activeMQComponent("vm://localhost?broker.persistent=false"));
        // END SNIPPET: example

        return camelContext;
    }

    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            public void configure() throws Exception {
                from("activemq:test.a").process(new Processor() {
                    public void process(Exchange exchange) throws Exception {
                        // lets set the custom JMS headers using the JMS API
						JmsMessage jmsMessage = assertIsInstanceOf(JmsMessage.class, exchange.getIn());
						
                        jmsMessage.getJmsMessage().setJMSReplyTo(replyQueue);
                        jmsMessage.getJmsMessage().setJMSCorrelationID(correlationID);
                        jmsMessage.getJmsMessage().setJMSType(messageType);
                    }
                }).to("activemq:test.b?preserveMessageQos=true");

                from("activemq:test.b").to("mock:result");
            }
        };
    }
}

Other ActiveMQ examples (source code examples)

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