org.apache.activemq.artemis.jms.example.CamelExample Maven / Gradle / Ivy
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* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.activemq.artemis.jms.example;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.naming.InitialContext;
import java.util.Hashtable;
public class CamelExample {
public static void main(final String[] args) throws Exception {
Connection connection = null;
InitialContext ic = null;
try {
// Step 1. - we create an initial context for looking up JNDI
Hashtable properties = new Hashtable<>();
properties.put("java.naming.factory.initial", "org.apache.activemq.artemis.jndi.ActiveMQInitialContextFactory");
properties.put("connectionFactory.ConnectionFactory", "tcp://127.0.0.1:61616");
properties.put("queue.queue/sausage-factory", "sausage-factory");
properties.put("queue.queue/mincing-machine", "mincing-machine");
ic = new InitialContext(properties);
// Step 2. - we look up the sausage-factory queue from node 0
Queue sausageFactory = (Queue) ic.lookup("queue/sausage-factory");
Queue mincingMachine = (Queue) ic.lookup("queue/mincing-machine");
// Step 3. - we look up a JMS ConnectionFactory object from node 0
ConnectionFactory cf = (ConnectionFactory) ic.lookup("ConnectionFactory");
// Step 4. We create a JMS Connection connection which is a connection to server 0
connection = cf.createConnection();
// Step 5. We create a JMS Session on server 0
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
// Step 6. We start the connection to ensure delivery occurs on them
connection.start();
// Step 7. We create JMS MessageConsumer object
MessageConsumer consumer = session.createConsumer(mincingMachine);
// Step 8. We create a JMS MessageProducer object
MessageProducer producer = session.createProducer(sausageFactory);
// Step 9. We create and send a message to the sausage-factory
Message message = session.createMessage();
producer.send(message);
System.out.println("Sent message to sausage-factory");
// Step 10. - we successfully receive the message from the mincing-machine.
Message receivedMessage = consumer.receive(5000);
if (receivedMessage == null) {
throw new IllegalStateException();
}
System.out.println("Received message from mincing-machine");
} finally {
// Step 15. Be sure to close our resources!
if (connection != null) {
connection.close();
}
if (ic != null) {
ic.close();
}
}
}
}
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