Example usage for javax.jms MapMessage setJMSReplyTo

Introduction

In this page you can find the example usage for javax.jms MapMessage setJMSReplyTo.

Prototype

void setJMSReplyTo(Destination replyTo) throws JMSException;

Source Link

Document

Sets the Destination object to which a reply to this message should be sent.

Usage

From source file:Retailer.java

public void run() {
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
    try {/*from w w w .ja  v a2 s . c  o  m*/
        Connection connection = connectionFactory.createConnection();

        // The Retailer's session is non-trasacted.
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination vendorOrderQueue = session.createQueue("VendorOrderQueue");
        TemporaryQueue retailerConfirmQueue = session.createTemporaryQueue();

        MessageProducer producer = session.createProducer(vendorOrderQueue);
        MessageConsumer replyConsumer = session.createConsumer(retailerConfirmQueue);

        connection.start();

        for (int i = 0; i < 5; i++) {
            MapMessage message = session.createMapMessage();
            message.setString("Item", "Computer(s)");
            int quantity = (int) (Math.random() * 4) + 1;
            message.setInt("Quantity", quantity);
            message.setJMSReplyTo(retailerConfirmQueue);
            producer.send(message);
            System.out.println("Retailer: Ordered " + quantity + " computers.");

            MapMessage reply = (MapMessage) replyConsumer.receive();
            if (reply.getBoolean("OrderAccepted")) {
                System.out.println("Retailer: Order Filled");
            } else {
                System.out.println("Retailer: Order Not Filled");
            }
        }

        // Send a non-MapMessage to signal the end
        producer.send(session.createMessage());

        replyConsumer.close();
        connection.close();

    } catch (JMSException e) {
        e.printStackTrace();
    }
}

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From source file:Vendor.java

public void run() {
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
    Session session = null;/*from ww  w  .  j a  v  a 2  s.c o m*/
    Destination orderQueue;
    Destination monitorOrderQueue;
    Destination storageOrderQueue;
    TemporaryQueue vendorConfirmQueue;
    MessageConsumer orderConsumer = null;
    MessageProducer monitorProducer = null;
    MessageProducer storageProducer = null;

    try {
        Connection connection = connectionFactory.createConnection();

        session = connection.createSession(true, Session.SESSION_TRANSACTED);
        orderQueue = session.createQueue("VendorOrderQueue");
        monitorOrderQueue = session.createQueue("MonitorOrderQueue");
        storageOrderQueue = session.createQueue("StorageOrderQueue");

        orderConsumer = session.createConsumer(orderQueue);
        monitorProducer = session.createProducer(monitorOrderQueue);
        storageProducer = session.createProducer(storageOrderQueue);

        Connection asyncconnection = connectionFactory.createConnection();
        asyncSession = asyncconnection.createSession(true, Session.SESSION_TRANSACTED);

        vendorConfirmQueue = asyncSession.createTemporaryQueue();
        MessageConsumer confirmConsumer = asyncSession.createConsumer(vendorConfirmQueue);
        confirmConsumer.setMessageListener(this);

        asyncconnection.start();

        connection.start();

        while (true) {
            Order order = null;
            try {
                Message inMessage = orderConsumer.receive();
                MapMessage message;
                if (inMessage instanceof MapMessage) {
                    message = (MapMessage) inMessage;

                } else {
                    // end of stream
                    Message outMessage = session.createMessage();
                    outMessage.setJMSReplyTo(vendorConfirmQueue);
                    monitorProducer.send(outMessage);
                    storageProducer.send(outMessage);
                    session.commit();
                    break;
                }

                // Randomly throw an exception in here to simulate a Database error
                // and trigger a rollback of the transaction
                if (new Random().nextInt(3) == 0) {
                    throw new JMSException("Simulated Database Error.");
                }

                order = new Order(message);

                MapMessage orderMessage = session.createMapMessage();
                orderMessage.setJMSReplyTo(vendorConfirmQueue);
                orderMessage.setInt("VendorOrderNumber", order.getOrderNumber());
                int quantity = message.getInt("Quantity");
                System.out.println("Vendor: Retailer ordered " + quantity + " " + message.getString("Item"));

                orderMessage.setInt("Quantity", quantity);
                orderMessage.setString("Item", "Monitor");
                monitorProducer.send(orderMessage);
                System.out.println("Vendor: ordered " + quantity + " Monitor(s)");

                orderMessage.setString("Item", "HardDrive");
                storageProducer.send(orderMessage);
                System.out.println("Vendor: ordered " + quantity + " Hard Drive(s)");

                session.commit();
                System.out.println("Vendor: Comitted Transaction 1");

            } catch (JMSException e) {
                System.out.println("Vendor: JMSException Occured: " + e.getMessage());
                e.printStackTrace();
                session.rollback();
                System.out.println("Vendor: Rolled Back Transaction.");
            }
        }

        synchronized (supplierLock) {
            while (numSuppliers > 0) {
                try {
                    supplierLock.wait();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }

        connection.close();
        asyncconnection.close();

    } catch (JMSException e) {
        e.printStackTrace();
    }

}

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