/**
* 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.example;
import org.apache.camel.CamelContext;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.ExchangePattern;
import org.apache.camel.Producer;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.example.server.Multiplier;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class SpringJmsClientServerTest extends Assert {
protected static ConfigurableApplicationContext serverContext;
@BeforeClass
public static void setUpServer() {
if (!"true".equalsIgnoreCase(System.getProperty("skipStartingCamelContext"))) {
serverContext = new ClassPathXmlApplicationContext("/META-INF/spring/camel-server.xml");
} else {
System.out.println("Skipping starting CamelContext as system property skipStartingCamelContext is set to be true.");
}
}
@AfterClass
public static void tearDownServer() {
if (serverContext != null) {
serverContext.stop();
}
}
@Test
public void testCamelClientInvocation() {
ConfigurableApplicationContext context = new ClassPathXmlApplicationContext("camel-client.xml");
// get the camel template for Spring template style sending of messages (= producer)
ProducerTemplate camelTemplate = context.getBean("camelTemplate", ProducerTemplate.class);
// as opposed to the CamelClientRemoting example we need to define the service URI in this java code
int response = (Integer)camelTemplate.sendBody("jms:queue:numbers", ExchangePattern.InOut, 22);
assertEquals("Get a wrong response", 66, response);
context.stop();
}
@Test
public void testCamelEndpointInvocation() throws Exception {
ConfigurableApplicationContext context = new ClassPathXmlApplicationContext("camel-client.xml");
CamelContext camel = context.getBean("camel-client", CamelContext.class);
// get the endpoint from the camel context
Endpoint endpoint = camel.getEndpoint("jms:queue:numbers");
// create the exchange used for the communication
// we use the in out pattern for a synchronized exchange where we expect a response
Exchange exchange = endpoint.createExchange(ExchangePattern.InOut);
// set the input on the in body
// must you correct type to match the expected type of an Integer object
exchange.getIn().setBody(11);
// to send the exchange we need an producer to do it for us
Producer producer = endpoint.createProducer();
// start the producer so it can operate
producer.start();
// let the producer process the exchange where it does all the work in this oneline of code
producer.process(exchange);
// get the response from the out body and cast it to an integer
int response = exchange.getOut().getBody(Integer.class);
assertEquals("Get a wrong response.", 33, response);
// stop and exit the client
producer.stop();
context.stop();
}
@Test
public void testCamelRemotingInvocation() {
ConfigurableApplicationContext context = new ClassPathXmlApplicationContext("camel-client-remoting.xml");
// just get the proxy to the service and we as the client can use the "proxy" as it was
// a local object we are invoking. Camel will under the covers do the remote communication
// to the remote ActiveMQ server and fetch the response.
Multiplier multiplier = context.getBean("multiplierProxy", Multiplier.class);
int response = multiplier.multiply(33);
assertEquals("Get a wrong response", 99, response);
context.stop();
}
}