Example usage for javax.jms QueueConnectionFactory createConnection

Introduction

In this page you can find the example usage for javax.jms QueueConnectionFactory createConnection.

Prototype

Connection createConnection() throws JMSException;

Source Link

Document

Creates a connection with the default user identity.

Usage

From source file:org.dawnsci.commandserver.mx.example.ActiveMQProducer.java

public static void main(String[] args) throws Exception {

    QueueConnectionFactory connectionFactory = ConnectionFactoryFacade
            .createConnectionFactory("tcp://ws097.diamond.ac.uk:61616");
    Connection send = connectionFactory.createConnection();

    Session session = send.createSession(false, Session.AUTO_ACKNOWLEDGE);
    Queue queue = session.createQueue("testQ");

    final MessageProducer producer = session.createProducer(queue);
    producer.setDeliveryMode(DeliveryMode.PERSISTENT);

    Message message = session.createTextMessage("Hello World");
    producer.send(message);//from   www.j  ava2  s .c  o m

    message = session.createTextMessage("...and another message");
    producer.send(message);

    message = session.createObjectMessage(new TestObjectBean("this could be", "anything"));
    producer.send(message);

    // Test JSON
    SweepBean col = new SweepBean("fred", "d0000000001", 0, 100);

    ObjectMapper mapper = new ObjectMapper();
    String jsonString = mapper.writeValueAsString(col);

    message = session.createTextMessage(jsonString);
    producer.send(message);

    producer.close();
    session.close();
    send.close();

    // Now we peak at the queue
    // If the consumer is not going, the messages should still be there
    if (REQUIRE_PEAK) {
        QueueConnection qCon = connectionFactory.createQueueConnection();
        QueueSession qSes = qCon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
        queue = qSes.createQueue("testQ");
        qCon.start();

        QueueBrowser qb = qSes.createBrowser(queue);
        Enumeration e = qb.getEnumeration();
        if (e.hasMoreElements())
            System.out.println("Peak at queue:");
        while (e.hasMoreElements()) {
            Message m = (Message) e.nextElement();
            if (m == null)
                continue;
            if (m instanceof TextMessage) {
                TextMessage t = (TextMessage) m;
                System.out.println(t.getText());
            } else if (m instanceof ObjectMessage) {
                ObjectMessage o = (ObjectMessage) m;
                System.out.println(o.getObject());
            }
        }

        qb.close();
        qSes.close();
        qCon.close();
    }

}

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From source file:org.dawnsci.commandserver.core.consumer.RemoteSubmission.java

/**
 * Submits the bean onto the server. From there events about this
 * bean are tacked by monitoring the status queue.
 * /*from  w ww.  j av a 2s .  c  o m*/
 * @param uri
 * @param bean
 */
public synchronized TextMessage submit(StatusBean bean, boolean prepareBean) throws Exception {

    if (getQueueName() == null || "".equals(getQueueName()))
        throw new Exception("Please specify a queue name!");

    Connection send = null;
    Session session = null;
    MessageProducer producer = null;

    try {
        QueueConnectionFactory connectionFactory = ConnectionFactoryFacade.createConnectionFactory(uri);
        send = connectionFactory.createConnection();

        session = send.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Queue queue = session.createQueue(queueName);

        producer = session.createProducer(queue);
        producer.setDeliveryMode(DeliveryMode.PERSISTENT);

        ObjectMapper mapper = new ObjectMapper();

        if (getTimestamp() < 1)
            setTimestamp(System.currentTimeMillis());
        if (getPriority() < 1)
            setPriority(1);
        if (getLifeTime() < 1)
            setLifeTime(7 * 24 * 60 * 60 * 1000); // 7 days in ms

        if (prepareBean) {
            if (bean.getUserName() == null)
                bean.setUserName(System.getProperty("user.name"));
            bean.setUniqueId(uniqueId);
            bean.setSubmissionTime(getTimestamp());
        }
        String jsonString = mapper.writeValueAsString(bean);

        TextMessage message = session.createTextMessage(jsonString);

        message.setJMSMessageID(uniqueId);
        message.setJMSExpiration(getLifeTime());
        message.setJMSTimestamp(getTimestamp());
        message.setJMSPriority(getPriority());

        producer.send(message);

        return message;

    } finally {
        if (send != null)
            send.close();
        if (session != null)
            session.close();
        if (producer != null)
            producer.close();
    }

}

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