samples.jms.producercallback.ProducerCallbackExampleTests.java Source code

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Here is the source code for samples.jms.producercallback.ProducerCallbackExampleTests.java

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/*
 * Copyright 2002-2006 the original author or authors.
 *
 * 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 samples.jms.producercallback;

import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Session;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.ProducerCallback;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
 * This example demonstrates using the {@link MessageProducer} in a 
 * callback. It also sends multiple messages so that the affect of
 * modifications to the receiving Message listener container's
 * <code>concurrentConsumers</code> property can be demonstrated.
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "applicationContext.xml")
public class ProducerCallbackExampleTests {

    @Autowired
    private JmsTemplate jmsTemplate;

    @Autowired
    private Destination destination;

    @Test
    public void testProducer() throws Exception {

        jmsTemplate.execute(new ProducerCallback<Object>() {
            public Object doInJms(Session session, MessageProducer producer) throws JMSException {
                for (int i = 1; i <= 10; i++) {
                    Message message = session.createTextMessage("Hello #" + i);
                    producer.send(destination, message);
                }
                return null;
            }
        });
    }
}