Example usage for com.rabbitmq.client Connection createChannel

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:sd_aula06.Send.java

public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("reindeer.rmq.cloudamqp.com");
    factory.setUsername("jmodzuaw");
    factory.setPassword("Kwuy7kd81ED1fIj9gxEti1J4FTPBj2Jz");
    factory.setVirtualHost("jmodzuaw");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

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

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

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

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From source file:se.kodiak.logging.appenders.amqp.AmqpFactory.java

License:Open Source License

@Override
public Channel channelFor(String url, String exchange)
        throws NoSuchAlgorithmException, KeyManagementException, URISyntaxException, IOException {

    Connection con = this.connections.get(url);

    if (con == null || !con.isOpen()) {
        log.debug("No known connections for URI ({}), creating new.", url);
        f.setUri(url);/*from w ww.  ja  v a 2s  .  c  o m*/

        con = f.newConnection();
    }

    Channel channel = con.createChannel();
    setupChannel(channel, exchange);

    return channel;
}

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From source file:se.kodiak.logging.appenders.util.MQListener.java

License:Open Source License

public MQListener() {
    try {//  w w w .  ja  v a  2  s .c  om
        ConnectionFactory factory = new ConnectionFactory();
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        channel.basicQos(1);
        channel.exchangeDeclare("test", "topic");
        String queueName = channel.queueDeclare().getQueue();
        channel.queueBind(queueName, "test", "log.*");
        consumer = new QueueingConsumer(channel);
        channel.basicConsume(queueName, true, consumer);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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From source file:server.Worker.java

License:Open Source License

/**
 * @param args//from www. j a v  a  2  s  .  com
 * @throws IOException
 * @throws TimeoutException
 */
public static void main(String[] args) throws IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection requestConnection = factory.newConnection();
    Channel requestChannel = requestConnection.createChannel();
    requestChannel.queueDeclare(REQUEST_QUEUE_NAME, false, false, false, null);
    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");

    Connection responseConnection = factory.newConnection();
    final Channel responseChannel = responseConnection.createChannel();
    responseChannel.queueDeclare(RESPONSE_QUEUE_NAME, false, false, false, null);

    Consumer consumer = new DefaultConsumer(requestChannel) {
        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            PriorityRequest request = (PriorityRequest) SerializationUtils.deserialize(body);
            System.out.println(" [x] Received");
            System.out.println(request.request.toString());
            System.out.println("*************************************");

            System.out.println(request.request.getMethod());
            HttpResponse response = PluginManager.getInstance().process(request.request, request.rootDir);
            if (response == null) {
                response = HttpResponseFactory.create400BadRequest(Protocol.CLOSE);
            }
            try {
                System.out.println(request.id);
            } catch (Exception e) {
                e.printStackTrace();
            }

            response.id = request.id;

            byte[] data = SerializationUtils.serialize(response);
            responseChannel.basicPublish("", RESPONSE_QUEUE_NAME, null, data);
        }
    };
    requestChannel.basicConsume(REQUEST_QUEUE_NAME, true, consumer);
}

---

From source file:server.WorkerServer.java

License:Open Source License

private void doWork(HttpRequest request) throws Exception {
    // Parse the request
    try {/*ww  w.  jav a  2  s.  c  o  m*/
        String[] uri = request.getUri().split("/");
        String requestTypeString = request.getMethod();
        String pluginString = uri[1];
        String servletString = uri[2];

        HashMap<String, IPlugin> plugins = server.getPlugins();
        IPlugin currPlugin = plugins.get(pluginString);

        if (currPlugin == null) {
            throw new ProtocolException(Protocol.NOT_FOUND_CODE, "This plugin doesn't exist");
        }

        IServlet servlet = currPlugin.getServlet(requestTypeString + ":/" + servletString);

        if (servlet == null) {
            System.out.println("servlet is null");
            throw new ProtocolException(Protocol.NOT_FOUND_CODE, "This servlet doesn't exist");
        }
        System.out.println("requestTypeString: " + requestTypeString);
        HttpResponse response = servlet.processRequest(request, null);

        // publish response to response queue
        Connection connection2 = factory.newConnection();
        Channel channel2 = connection2.createChannel();
        boolean durable = true;
        //System.out.println("response: " + response.getBytes(request.getKey()));
        channel2.queueDeclare(Protocol.RESPONSE_QUEUE, durable, false, false, null);
        channel2.basicPublish("", Protocol.RESPONSE_QUEUE, MessageProperties.PERSISTENT_TEXT_PLAIN,
                response.getBytes(request.getKey()));
    } catch (ProtocolException e) {
        e.printStackTrace();
    }
}

---

From source file:src.main.java.server.MsgReceiveServer.java

public MsgReceiveServer(int SERVER_PORT, String logDirname, String zipDirname, String dbUser, String dbPwd,
        boolean withLog) throws IOException, TimeoutException, JSONException {

    super(SERVER_PORT);

    this.withLog = withLog;
    this.logDir = logDirname;
    this.zipDir = zipDirname;

    dataSource = new DataSource(dbUser, dbPwd);

    HashMap<String, Message> user2msg;
    allMsg = new HashMap<String, HashMap<String, Message>>();
    ArrayList<Pair<String, String>> res = dataSource.getGroupUser();
    for (Pair<String, String> p : res) {
        msg = new Message("{}", p.getR());
        msg.init(p.getR(), "localhost");
        msg.bindTo(p.getL(), p.getR());/*from  w  ww.ja v  a 2 s  . com*/
        if (allMsg.containsKey(p.getL())) {
            allMsg.get(p.getL()).put(p.getR(), msg);
        } else {
            user2msg = new HashMap<String, Message>();
            user2msg.put(p.getR(), msg);
            allMsg.put(p.getL(), user2msg);
        }
    }

    loginMsg = new Message("{}", "");
    loginMsg.init("login_request", "localhost");
    loginMsg.bindTo("login_auth", "login_request");

    normalMsg = new Message("{}", "");
    normalMsg.init("normal_msg", "localhost");
    normalMsg.bindTo("msg_send", "normal_msg");

    logoutMsg = new Message("{}", "");
    logoutMsg.init("logout_msg", "localhost");
    logoutMsg.bindTo("msg_send", "logout_msg");

    reloginMsg = new Message("{}", "");
    reloginMsg.init("relogin_msg", "localhost");
    reloginMsg.bindTo("msg_send", "relogin_msg");

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel loginSuccessChannel = connection.createChannel();
    loginSuccessChannel.queueDeclare("login_success", true, false, false, null);
    loginSuccessConsumer = new DefaultConsumer(loginSuccessChannel) {
        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String sLoginSuccessMsg = new String(body, "UTF-8");
            try {
                Message loginSuccessMsg = new Message("{}", "");
                loginSuccessMsg.reset(sLoginSuccessMsg);
                String loginSuccessUsername = loginSuccessMsg.getValue("username");
                if (user_list.contains(loginSuccessUsername) == false) {
                    user_list.add(loginSuccessUsername);
                }
                System.out.println(user_list.size());
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    };
    loginSuccessChannel.basicConsume("login_success", true, loginSuccessConsumer);

}

---

From source file:SubsrciberStuff.BrokerSubscriber.java

public void turnOnTopicMonitoring() {

    try {/*from   ww  w  .  ja va2 s.  c  om*/
        Connection connection = factory.newConnection();
        topicChannel = connection.createChannel();
        topicChannel.exchangeDeclare(SENSOR_EXCHANGE, "topic");
        String topChName = topicChannel.queueDeclare().getQueue();
        topicChannel.queueBind(topChName, SENSOR_EXCHANGE, BIND_KEY_ALL_SENSOR);
        topicChannel.basicConsume(topChName, true, topicConsumer);
        System.out.println("Topic Monitoring ---ON---");

    } catch (IOException ex) {
        Logger.getLogger(BrokerSubscriber.class.getName()).log(Level.SEVERE, null, ex);
    }

}

---

From source file:taucalcmanager.TaucalcManager.java

/**
 * @param args the command line arguments
 * @throws java.io.IOException/*ww  w.j  a v  a2s  .  c o m*/
 * @throws java.util.concurrent.TimeoutException
 */
public static void main(String[] args) throws IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    channel.queueDeclare(WORKQUEUENAME, false, false, false, null);
    channel.queueDeclare(RESULTQUEUENAME, false, false, false, null);
    channel.basicQos(1);

    int calcs = Integer.parseInt(args[0]);
    int triesPerCalc = Integer.parseInt(args[1]);
    int[] results = new int[calcs];
    byte[] task = { (byte) (triesPerCalc >> 24), (byte) (triesPerCalc >> 16), (byte) (triesPerCalc >> 8),
            (byte) (triesPerCalc) };

    System.out.println("Start Publishing");
    for (int i = 0; i < calcs; i++) {
        channel.basicPublish("", WORKQUEUENAME, null, task);
    }
    System.out.println("Done Publishing");
    GetResponse response;
    System.out.println("Start Gathering results");
    for (int i = 0; i < calcs; i++) {
        System.out.println("Waiting for next result: ( " + i + " )");
        do {
            response = channel.basicGet(RESULTQUEUENAME, true);
        } while (response == null);

        results[i] = ByteBuffer.wrap(response.getBody()).getInt();
        System.out.println("Received result: " + results[i]);
    }
    System.out.println("Done gathering results");
    System.out.println("Calculating tau");
    BigDecimal result = sumToTau(sum(results), calcs, triesPerCalc);
    System.out.println("Tau = " + result);
    BigDecimal two = new BigDecimal(2);
    System.out.println("pi = tau/2 = " + result.divide(two, RoundingMode.HALF_UP));
    channel.close();
    connection.close();
}

---

From source file:taucalcworker.TaucalcWorker.java

/**
 * @param args the command line arguments
 * @throws java.io.IOException//from ww  w.jav a 2s.c  o  m
 * @throws java.util.concurrent.TimeoutException
 */
public static void main(String[] args) throws IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    channel.queueDeclare(WORKQUEUENAME, false, false, false, null);
    channel.queueDeclare(RESULTQUEUENAME, false, false, false, null);
    channel.basicQos(1);

    byte[] inputbyte = { 0, 0, 0, 0 };
    String input = "";

    do {
        if (System.in.available() > 0) {
            System.in.read(inputbyte);
            input = new String(inputbyte);
        }
        GetResponse response = channel.basicGet(WORKQUEUENAME, false);
        if (response != null) {
            long deliverytag = response.getEnvelope().getDeliveryTag();
            byte[] body = response.getBody();
            int tries = ByteBuffer.wrap(body).getInt();
            System.out.println("Task received: " + tries);
            int success = 0;
            for (int i = 0; i < tries; i++) {
                double x = Math.random();
                double y = Math.random();
                if (x * x + y * y <= 1) {
                    success++;
                }
            }
            System.out.println("success: " + success + " out of " + tries);
            double tau = ((double) success / tries) * 8;
            System.out.println("Tau = " + tau);
            byte[] resultbytes = new byte[8];
            ByteBuffer.wrap(resultbytes).putDouble(tau);
            channel.basicPublish("", RESULTQUEUENAME, null, resultbytes);
            channel.basicAck(deliverytag, false);
        }
    } while (!input.equals("stop"));
    channel.close();
    connection.close();
    System.out.println("You stopped the program.");
}

---

From source file:translators.ToOurXmlBank.java

public static void main(String[] args) throws IOException, TimeoutException {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("datdb.cphbusiness.dk");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.exchangeDeclare(exchangeName, "direct");
    String queueName = channel.queueDeclare().getQueue();

    channel.queueBind(queueName, exchangeName, "ourBankSoapXML");

    //get banks from queue. "Get banks" component
    QueueingConsumer consumer = new QueueingConsumer(channel) {
        @Override//from www .j  ava  2 s.c  om
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String message = new String(body, "UTF-8");
            Message messageFromJson = getFromJson(message);
            connectToWebService(messageFromJson, properties.getCorrelationId(), EXCHANGE_NAME_SCHOOL,
                    replyQueueName);

        }
    };
    channel.basicConsume(queueName, true, consumer);

}

---

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