Example usage for com.rabbitmq.client Connection createChannel

List of usage examples for com.rabbitmq.client Connection createChannel

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Introduction

In this page you can find the example usage for com.rabbitmq.client Connection createChannel.

Prototype

Channel createChannel() throws IOException;

Source Link

Document

Create a new channel, using an internally allocated channel number.

Usage

From source file:localdomain.localhost.RabbitMQClient.java

License:Apache License

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    try {//from  w  w  w.j a va2 s  .c o m
        ConnectionFactory factory = new ConnectionFactory();
        String messages = new String();

        String uri = System.getProperty("CLOUDAMQP_URL");
        factory.setUri(uri);

        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        channel.queueDeclare(QUEUE_NAME, true, false, false, null);

        QueueingConsumer consumer = new QueueingConsumer(channel);

        boolean autoACK = false;
        channel.basicConsume(QUEUE_NAME, autoACK, consumer);

        System.out.println(" [*] Waiting 100ms for a message");
        QueueingConsumer.Delivery delivery = consumer.nextDelivery(100);

        while (delivery != null) {
            String message = new String(delivery.getBody());

            System.out.println(" [x] Received '" + message + "'");

            channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);

            messages = message + " <br/> " + messages;
            delivery = consumer.nextDelivery(100);
        }
        request.setAttribute("messages", messages);
        request.getRequestDispatcher("/index.jsp").forward(request, response);

        channel.close();
        connection.close();

    } catch (Exception e) {
        request.setAttribute("throwable", e);
        request.getRequestDispatcher("/index.jsp").forward(request, response);
    }

}

From source file:localdomain.localhost.RabbitMQServer.java

License:Apache License

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    try {//from  w  ww  .  ja  v a 2 s.  com
        String message = request.getParameter("message");

        ConnectionFactory factory = new ConnectionFactory();
        String uri = System.getProperty("CLOUDAMQP_URL");
        factory.setUri(uri);

        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        boolean durable = true;
        channel.queueDeclare(QUEUE_NAME, durable, false, false, null);

        channel.basicPublish("", QUEUE_NAME, MessageProperties.PERSISTENT_TEXT_PLAIN, message.getBytes());
        System.out.println(" [x] Sent '" + message + "'");

        channel.close();
        connection.close();

        response.sendRedirect(request.getContextPath() + "/index.jsp");
    } catch (Exception e) {
        request.setAttribute("throwable", e);
        request.getRequestDispatcher("/index.jsp").forward(request, response);
    }
}

From source file:main.TestMain.java

public static void sendMessage(String message) throws IOException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("datdb.cphbusiness.dk");
    factory.setUsername("student");
    factory.setPassword("cph");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(QUEUE_NAME, false, false, false, null);

    channel.basicPublish("", QUEUE_NAME, null, message.getBytes("UTF-8"));
    System.out.println(" [x] Sent '" + message + "'");

    channel.close();//from  w w w  . jav a  2 s  .c  om
    connection.close();
}

From source file:mapas.Mapas.java

public static void main(String[] args) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    factory.setPassword("test");
    factory.setUsername("test");
    final Connection connection = factory.newConnection();

    final Channel channel = connection.createChannel();

    channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null);
    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");

    channel.basicQos(1);/*from  w  w w .j av  a 2 s  .com*/

    final Consumer consumer = new DefaultConsumer(channel) {
        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String message = new String(body, "UTF-8");

            System.out.println(" [x] Received '" + message + "'");
            try {
                doWork(message);
            } catch (Exception e) {
                System.out.println(e.getMessage());
            }
            System.out.println(" [x] Done");
            channel.basicAck(envelope.getDeliveryTag(), false);

        }
    };
    channel.basicConsume(TASK_QUEUE_NAME, false, consumer);
}

From source file:messaging.Worker.java

License:Apache License

public static void sendMessage(String message) throws java.io.IOException {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(ConfigurationLoader.getInstance().getRabbitmqNodename());
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null);

    channel.basicPublish("", TASK_QUEUE_NAME, MessageProperties.PERSISTENT_TEXT_PLAIN, message.getBytes());
    System.out.println(" [x] Sent '" + message + "'");

    channel.close();//from  w w  w.j  a  v a 2s.  com
    connection.close();
}

From source file:mx.bigdata.utils.amqp.AMQPClientHelperImpl.java

License:Apache License

public Channel declareChannel(ConnectionFactory factory, String key) throws Exception {
    Connection conn = factory.newConnection();
    Channel channel = conn.createChannel();
    Integer basicQos = conf.getInteger("channel_basic_qos");
    if (basicQos != null) {
        channel.basicQos(basicQos);// www.  j  a  va  2 s .c  om
    } else {
        channel.basicQos(DEFAULT_QOS);
    }
    channel.exchangeDeclare(getExchangeName(key), getExchangeType(key), true);
    return channel;
}

From source file:net.echinopsii.ariane.community.messaging.rabbitmq.ServiceFactory.java

License:Open Source License

/**
 * Create a message group request service.
 *
 * @param source the source where request are coming from
 * @param requestWorker the application request worker
 * @return the new message group request service
 *//* w w  w .  j av a  2 s. c  o m*/
@Override
public MomAkkaService msgGroupRequestService(String source, AppMsgWorker requestWorker) {
    final Connection connection = ((Client) super.getMomClient()).getConnection();
    MomAkkaService ret = null;
    ActorRef requestActor;
    MomConsumer consumer;
    MomMsgGroupServiceMgr msgGroupMgr;

    if (connection != null && connection.isOpen()) {
        try {
            Channel channel = connection.createChannel();
            channel.basicQos(1);
            requestActor = ServiceFactory.createRequestRouter(source, super.getMomClient(), channel,
                    requestWorker, null, true);
            consumer = ServiceFactory.createConsumer(source, channel, requestActor,
                    super.getMomClient().isMsgDebugOnTimeout());
            msgGroupMgr = ServiceFactory.createMsgGroupServiceManager(source, channel, requestWorker,
                    super.getMomClient());
            consumer.start();
            ret = new MomAkkaService().setMsgWorker(requestActor).setConsumer(consumer)
                    .setClient(super.getMomClient()).setMsgGroupServiceMgr(msgGroupMgr);
            super.getServices().add(ret);

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return ret;
}

From source file:net.echinopsii.ariane.community.messaging.rabbitmq.ServiceFactory.java

License:Open Source License

/**
 * Create a request service (can not handle message grouping)
 *
 * @param source the source where request are coming from
 * @param requestWorker the application request worker
 * @return the new request service//  ww w .j  ava  2s .  c o m
 */
@Override
public MomAkkaService requestService(final String source, final AppMsgWorker requestWorker) {
    final Connection connection = ((Client) super.getMomClient()).getConnection();
    MomAkkaService ret = null;
    ActorRef requestActor;
    MomConsumer consumer;

    if (connection != null && connection.isOpen()) {
        try {
            Channel channel = connection.createChannel();
            channel.basicQos(1);
            requestActor = ServiceFactory.createRequestRouter(source, super.getMomClient(), channel,
                    requestWorker, null, false);
            consumer = ServiceFactory.createConsumer(source, channel, requestActor,
                    super.getMomClient().isMsgDebugOnTimeout());
            consumer.start();

            ret = new MomAkkaService().setMsgWorker(requestActor).setConsumer(consumer)
                    .setClient(super.getMomClient());
            super.getServices().add(ret);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    return ret;
}

From source file:net.echinopsii.ariane.community.messaging.rabbitmq.ServiceFactory.java

License:Open Source License

/**
 * Create a new subscriber service.//  ww  w .j  a v  a 2  s.  co  m
 *
 * @param baseSource the feed base source
 * @param selector the selector on the feed source (can be null)
 * @param feedWorker the feed message worker
 * @return the new subscriber service
 */
@Override
public MomAkkaService subscriberService(final String baseSource, String selector, AppMsgWorker feedWorker) {
    MomAkkaService ret = null;
    ActorRef subsActor;
    MomConsumer consumer;
    final Connection connection = ((Client) super.getMomClient()).getConnection();

    if (selector == null || selector.equals(""))
        selector = "#";

    if (connection != null && connection.isOpen()) {
        subsActor = super.getMomClient().getActorSystem().actorOf(MsgSubsActor.props(feedWorker),
                baseSource + "." + ((selector.equals("#")) ? "all" : selector) + "_msgWorker");
        final ActorRef runnableSubsActor = subsActor;
        final String select = selector;
        final Client cli = ((Client) super.getMomClient());

        consumer = new MomConsumer() {
            private boolean isRunning = false;

            @Override
            public void run() {
                Channel channel = null;
                try {
                    channel = connection.createChannel();
                    channel.exchangeDeclare(baseSource, "topic");

                    String queueName = cli.getClientID() + "_SUBS_2_" + baseSource + "." + select;
                    channel.queueDeclare(queueName, false, true, false, null);
                    channel.queueBind(queueName, baseSource, select);

                    QueueingConsumer consumer = new QueueingConsumer(channel);
                    channel.basicConsume(queueName, true, consumer);

                    isRunning = true;

                    while (isRunning) {
                        try {
                            QueueingConsumer.Delivery delivery = consumer.nextDelivery(10);
                            if (delivery != null && isRunning)
                                runnableSubsActor.tell(delivery, null);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }

                    }
                    if (channel.getConnection().isOpen())
                        channel.close();

                } catch (IOException e) {
                    e.printStackTrace();
                } finally {
                    try {
                        if (channel.getConnection().isOpen())
                            channel.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }

            @Override
            public boolean isRunning() {
                return isRunning;
            }

            @Override
            public void start() {
                new Thread(this).start();
            }

            @Override
            public void stop() {
                isRunning = false;
                try {
                    Thread.sleep(20);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        };

        consumer.start();
        ret = new MomAkkaService().setMsgWorker(subsActor).setConsumer(consumer)
                .setClient(super.getMomClient());
        super.getServices().add(ret);
    }
    return ret;
}

From source file:net.es.netshell.rabbitmq.Consume.java

License:Open Source License

public void consumeMessage() throws Exception {
    if (queueName == null) {
        queueName = new UUIDManager(QUEUE_FILE).checkUUID();
    }/* w w w .j  a v a 2s.c o m*/
    ConnectionFactory factory = new SSLConnection(info).createConnection();
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(queueName, false, false, true, null);
    System.out.println(" [*] Waiting for messages.");

    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(queueName, true, "consumer", false, false, null, consumer);

    //while (true) {
    QueueingConsumer.Delivery delivery = consumer.nextDelivery();
    ByteArrayInputStream bais = new ByteArrayInputStream(delivery.getBody());
    ObjectInputStream in = new ObjectInputStream(bais);
    DefaultListenableGraph g = (DefaultListenableGraph) in.readObject();
    System.out.println(" [x] Received Message");

    // GraphViewer view = new GraphViewer(g);
    // view.init();

    //         if (message.substring(0,13).equals("TOKEN_REQUEST")) {
    //            String[] token = new ProcessTokenRequest(message, channel).sendToken();
    //            permissions.put(token[0], token[1]);
    //            //String[] messageSplit = message.split(":");
    //            //sendToken(messageSplit[1], messageSplit[2], channel);
    //         } else {
    //            String[] messageSplit = message.split(":", 2);
    //            if (permissions.containsKey(messageSplit[0])) {
    //               System.out.println(" [x] Received '" + messageSplit[1] + "' from: " + permissions.get(messageSplit[0]));
    //            } else {
    //               System.out.println(" ERROR: INVALID TOKEN PROVIDED IN MESSAGE");
    //            }
    //         }
    //}

    channel.queueDelete(queueName);
    channel.close();
    connection.close();
}