Example usage for javax.jms Session createConsumer

Introduction

In this page you can find the example usage for javax.jms Session createConsumer.

Prototype

MessageConsumer createConsumer(Destination destination) throws JMSException;

Source Link

Document

Creates a MessageConsumer for the specified destination.

Usage

From source file:com.fusesource.examples.activemq.SimpleConsumer.java

public static void main(String args[]) {
    Connection connection = null;

    try {/*ww w .  j ava2s. co m*/
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);
        Destination destination = (Destination) context.lookup(DESTINATION_NAME);

        connection = factory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        MessageConsumer consumer = session.createConsumer(destination);

        LOG.info("Start consuming messages from " + destination.toString() + " with "
                + MESSAGE_TIMEOUT_MILLISECONDS + "ms timeout");

        // Synchronous message consumer
        int i = 1;
        while (true) {
            Message message = consumer.receive(MESSAGE_TIMEOUT_MILLISECONDS);
            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    LOG.info("Got " + (i++) + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

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

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

    ConnectionFactory connectionFactory = ConnectionFactoryFacade
            .createConnectionFactory("tcp://sci-serv5.diamond.ac.uk:61616");
    Connection connection = connectionFactory.createConnection();
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    Queue queue = session.createQueue("testQ");

    final MessageConsumer consumer = session.createConsumer(queue);
    connection.start();/*ww  w .  j av  a 2  s  .c o  m*/

    while (true) { // You have to kill it to stop it!
        Message m = consumer.receive(1000);
        if (m != null) {
            if (m instanceof TextMessage) {
                TextMessage t = (TextMessage) m;
                System.out.println(t.getText());
                try {
                    ObjectMapper mapper = new ObjectMapper();
                    final SweepBean colBack = mapper.readValue(t.getText(), SweepBean.class);
                    System.out.println("Data collection found: " + colBack.getDataCollectionId());

                } catch (Exception ne) {
                    System.out.println(m + " is not a data collection.");
                }
            } else if (m instanceof ObjectMessage) {
                ObjectMessage o = (ObjectMessage) m;
                System.out.println(o.getObject());
            }
        }
    }
}

---

From source file:example.transaction.Client.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/*from  w ww .j a  v  a2 s .  com*/
    }
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {
        connection = connectionFactory.createConnection();
        connection.start();
        Topic destination = new ActiveMQTopic("transacted.client.example");

        Session senderSession = connection.createSession(TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Session receiverSession = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        MessageConsumer receiver = receiverSession.createConsumer(destination);
        receiver.setMessageListener(new MessageListener() {
            @Override
            public void onMessage(Message message) {
                if (message instanceof TextMessage) {
                    try {
                        String value = ((TextMessage) message).getText();
                        System.out.println("We received a new message: " + value);
                    } catch (JMSException e) {
                        System.out.println("Could not read the receiver's topic because of a JMSException");
                    }
                }
            }
        });

        MessageProducer sender = senderSession.createProducer(destination);

        connection.start();
        acceptInputFromUser(senderSession, sender);
        senderSession.close();
        receiverSession.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

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From source file:example.queue.Consumer.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();//  w  w w. j  a  v a 2s .  c o  m
    }
    System.out.println("\nWaiting to receive messages... will timeout after " + TIMEOUT / 1000 + "s");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("test-queue");
        MessageConsumer consumer = session.createConsumer(destination);

        int i = 0;
        while (true) {
            Message message = consumer.receive(TIMEOUT);

            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    System.out.println("Got " + i++ + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.topic.Subscriber.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();// w  w  w  .  j ava2 s . c  o m
    }
    System.out
            .println("\nWaiting to receive messages... Either waiting for END message or press Ctrl+C to exit");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;
    final CountDownLatch latch = new CountDownLatch(1);

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createTopic("test-topic");

        MessageConsumer consumer = session.createConsumer(destination);
        consumer.setMessageListener(new Subscriber(latch));

        latch.await();
        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.tempdest.Consumer.java

public static void main(String[] args) {

    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/* w  w w .  j  ava2 s .  c om*/
    }
    System.out.println("\nWaiting to receive messages... will timeout after " + TIMEOUT / 1000 + "s");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        final Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("test-queue");
        MessageConsumer consumer = session.createConsumer(destination);

        int i = 0;
        while (true) {
            Message message = consumer.receive(TIMEOUT);

            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    System.out.println("Got " + i++ + ". message: " + text);
                    Destination replyTo = message.getJMSReplyTo();
                    MessageProducer producer = session.createProducer(replyTo);
                    producer.send(
                            session.createTextMessage("You made it to the consumer, here is your response"));
                    producer.close();
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.queue.exclusive.Consumer.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();//from   ww  w  .j  a  v a 2s.  c  o m
    }
    System.out.println("\nWaiting to receive messages... will timeout after " + TIMEOUT / 1000 + "s");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Queue destination = session.createQueue("test-queue?consumer.exclusive=true");
        MessageConsumer consumer = session.createConsumer(destination);

        int i = 0;
        while (true) {
            Message message = consumer.receive(TIMEOUT);

            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    System.out.println("Got " + i++ + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:com.fusesource.examples.activemq.VirtualConsumer.java

public static void main(String args[]) {
    Connection connection = null;

    try {//from  www  . j  ava2s. c  o  m
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);

        connection = factory.createConnection();
        connection.setClientID(System.getProperty("clientID"));
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Queue queue = session.createQueue(System.getProperty("queue"));

        MessageConsumer consumer = session.createConsumer(queue);

        LOG.info("Start consuming messages from " + queue + " with " + MESSAGE_TIMEOUT_MILLISECONDS
                + "ms timeout");

        // Synchronous message consumer
        int i = 1;
        while (true) {
            Message message = consumer.receive(MESSAGE_TIMEOUT_MILLISECONDS);
            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    LOG.info("Got " + (i++) + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

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From source file:org.jboss.activemq.clients.JMSConsumer.java

public static void main(String args[]) {
    Connection connection = null;

    try {/* w w w. j av a2 s . c o  m*/

        Options options = new Options();
        options.addOption("h", "help", false, "help:");
        options.addOption("url", true, "url for the broker to connect to");
        options.addOption("u", "username", true, "User name for connection");
        options.addOption("p", "password", true, "password for connection");
        options.addOption("d", "destination", true, "destination to send to");
        options.addOption("n", "number", true, "number of messages to send");
        options.addOption("delay", true, "delay between each send");

        CommandLineParser parser = new BasicParser();
        CommandLine commandLine = parser.parse(options, args);

        if (commandLine.hasOption("h")) {
            HelpFormatter helpFormatter = new HelpFormatter();
            helpFormatter.printHelp("OptionsTip", options);
            System.exit(0);
        }

        String url = commandLine.hasOption("host") ? commandLine.getOptionValue("host") : URL;

        String userName = commandLine.hasOption("u") ? commandLine.getOptionValue("u") : "admin";
        String password = commandLine.hasOption("p") ? commandLine.getOptionValue("p") : "admin";
        String destinationName = commandLine.hasOption("d") ? commandLine.getOptionValue("d")
                : DESTINATION_NAME;
        int numberOfMessages = commandLine.hasOption("n") ? Integer.parseInt(commandLine.getOptionValue("n"))
                : NUM_MESSAGES_TO_RECEIVE;
        ;

        ConnectionFactory factory = new ActiveMQConnectionFactory(userName, password, url);

        connection = factory.createConnection();
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Topic topic = session.createTopic(destinationName);

        MessageConsumer consumer = session.createConsumer(topic);

        LOG.info("Start consuming " + numberOfMessages + " messages from " + topic.toString());

        for (int i = 0; i < numberOfMessages; i++) {
            Message message = consumer.receive();
            if (message != null) {
                if (message instanceof BytesMessage) {
                    BytesMessage bytesMessage = (BytesMessage) message;
                    int len = (int) bytesMessage.getBodyLength();
                    byte[] data = new byte[len];
                    bytesMessage.readBytes(data);
                    String value = new String(data);

                    LOG.info("Got " + value);
                } else {
                    LOG.info("Got a message " + message);
                }
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error("Error receiving message", t);
    } finally {

        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error("Error closing connection", e);
            }
        }
    }
}

---

From source file:com.fusesource.examples.activemq.SimpleSubscriber.java

public static void main(String args[]) {
    Connection connection = null;

    try {/*w w  w.  ja  v a 2s .  c  om*/
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);
        connection = factory.createConnection();
        connection.setClientID("ApplicationA");

        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        String topicName = System.getProperty("topic");

        Topic topic = session.createTopic(topicName);
        MessageConsumer consumer = session.createConsumer(topic);

        LOG.info("Start consuming messages from " + topicName + " with " + MESSAGE_TIMEOUT_MILLISECONDS
                + "ms timeout");

        // Synchronous message consumer
        int i = 1;
        while (true) {
            Message message = consumer.receive(MESSAGE_TIMEOUT_MILLISECONDS);
            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    LOG.info("Got " + (i++) + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

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