Java MessageListener.onMessage方法代碼示例

import javax.jms.MessageListener; //導入方法依賴的package包/類
@Override
public void sendMessage(final String destination, final Message message) {
    final Class<? extends MessageListener> mdbClass = messageDrivenBeanRegistry.get(destination);
    final Releaser releaser = new Releaser();
    final MessageListener mdb = dependencyInjection.getInstanceOf(mdbClass, releaser);
    try {
        mdb.onMessage(message);
    } finally {
        releaser.release();
    }
}
 

import javax.jms.MessageListener; //導入方法依賴的package包/類
@Test
public void testListeners() throws Exception {
	TestBean testBean1 = context.getBean("testBean1", TestBean.class);
	TestBean testBean2 = context.getBean("testBean2", TestBean.class);
	TestMessageListener testBean3 = context.getBean("testBean3", TestMessageListener.class);

	assertNull(testBean1.getName());
	assertNull(testBean2.getName());
	assertNull(testBean3.message);

	TextMessage message1 = mock(TextMessage.class);
	given(message1.getText()).willReturn("Test1");

	MessageListener listener1 = getListener("listener1");
	listener1.onMessage(message1);
	assertEquals("Test1", testBean1.getName());

	TextMessage message2 = mock(TextMessage.class);
	given(message2.getText()).willReturn("Test2");

	MessageListener listener2 = getListener("listener2");
	listener2.onMessage(message2);
	assertEquals("Test2", testBean2.getName());

	TextMessage message3 = mock(TextMessage.class);

	MessageListener listener3 = getListener(DefaultMessageListenerContainer.class.getName() + "#0");
	listener3.onMessage(message3);
	assertSame(message3, testBean3.message);
}
 

import javax.jms.MessageListener; //導入方法依賴的package包/類
/**
 * Allows a JMS {@link MessageListener} to be converted to a Camel {@link Processor}
 * so that we can provide better
 * <a href="">Bean Integration</a> so that we can use any JMS MessageListener in
 * in Camel as a bean
 * @param listener the JMS message listener
 * @return a newly created Camel Processor which when invoked will invoke
 * {@link MessageListener#onMessage(Message)}
 */
@Converter
public Processor toProcessor(final MessageListener listener) {
    return new Processor() {
        public void process(Exchange exchange) throws Exception {
            Message message = toMessage(exchange);
            listener.onMessage(message);
        }

        @Override
        public String toString() {
            return "Processor of MessageListener: " + listener;
        }
    };
}
 

import javax.jms.MessageListener; //導入方法依賴的package包/類
@Override
public void execute(ActiveMQDestination destination, MessageListener listener) throws Exception {
   LOG.info("Initial query is creating: " + MESSAGE_COUNT + " messages");
   for (int i = 0; i < MESSAGE_COUNT; i++) {
      ActiveMQTextMessage message = new ActiveMQTextMessage();
      message.setText("Initial message: " + i + " loaded from query");
      listener.onMessage(message);
   }
}
 

import javax.jms.MessageListener; //導入方法依賴的package包/類
/**
 * Invoke the specified listener as standard JMS MessageListener.
 * <p>Default implementation performs a plain invocation of the
 * {@code onMessage} method.
 * @param listener the JMS MessageListener to invoke
 * @param message the received JMS Message
 * @throws JMSException if thrown by JMS API methods
 * @see javax.jms.MessageListener#onMessage
 */
protected void doInvokeListener(MessageListener listener, Message message) throws JMSException {
	listener.onMessage(message);
}