Example usage for com.rabbitmq.client ConnectionFactory newConnection

List of usage examples for com.rabbitmq.client ConnectionFactory newConnection

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Introduction

In this page you can find the example usage for com.rabbitmq.client ConnectionFactory newConnection.

Prototype

public Connection newConnection() throws IOException, TimeoutException

Source Link

Document

Create a new broker connection.

Usage

From source file:org.hobbit.core.rabbit.EchoServer.java

License:Open Source License

@Override
public void run() {
    running = true;/*  w w w. j  a v a 2s .  c  o m*/
    Connection connection = null;
    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(rabbitHost);
        connection = factory.newConnection();
        Channel channel = connection.createChannel();
        channel.basicQos(1);
        channel.queueDeclare(queueName, false, false, true, null);

        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                    byte[] body) throws IOException {
                BasicProperties replyProps = new BasicProperties.Builder()
                        .correlationId(properties.getCorrelationId()).deliveryMode(2).build();
                channel.basicPublish("", properties.getReplyTo(), replyProps, body);
            }
        };
        channel.basicConsume(queueName, true, consumer);

        while (running) {
            Thread.sleep(3000);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (IOException e) {
            }
        }
    }
}

From source file:org.hobbit.core.rabbit.FileStreamingTest.java

License:Open Source License

@Before
public void before() throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(TestConstants.RABBIT_HOST);
    connection = factory.newConnection();
}

From source file:org.hobbit.core.rabbit.ParallelizationTest.java

License:Open Source License

@Test
public void test() throws InterruptedException, IOException, TimeoutException {

    EchoServer server = new EchoServer(TestConstants.RABBIT_HOST, REQUEST_QUEUE_NAME);

    Thread serverThread = new Thread(server);
    serverThread.start();/*ww w.j  a  v a 2s.c  om*/
    System.out.println("Server started.");

    Random rand = new Random();
    Thread clientThreads[] = new Thread[NUMBER_OF_CLIENTS];
    RabbitRpcClient client = null;
    Connection connection = null;
    long time;
    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(TestConstants.RABBIT_HOST);
        connection = factory.newConnection();
        client = RabbitRpcClient.create(connection, REQUEST_QUEUE_NAME);
        for (int i = 0; i < clientThreads.length; ++i) {
            clientThreads[i] = new Thread(
                    new RpcClientBasedEchoClient(client, NUMBER_OF_MSGS, rand.nextLong()));
        }

        Timer timer = new Timer();
        final Thread testThread = Thread.currentThread();
        timer.schedule(new TimerTask() {
            @SuppressWarnings("deprecation")
            @Override
            public void run() {
                testThread.stop();
            }
        }, MAX_RUNTIME);

        time = System.currentTimeMillis();
        for (int i = 0; i < clientThreads.length; ++i) {
            clientThreads[i].start();
            System.out.print("Client #");
            System.out.print(i);
            System.out.println(" started.");
        }
        for (int i = 0; i < clientThreads.length; ++i) {
            clientThreads[i].join();
            System.out.print("Client #");
            System.out.print(i);
            System.out.println(" terminated.");
        }
        server.setRunning(false);
        serverThread.join();
        timer.cancel();

        time = System.currentTimeMillis() - time;
        System.out.println("Server terminated.");
        System.out.println("runtime : " + time + "ms");
    } finally {
        if (client != null) {
            client.close();
        }
        if (connection != null) {
            connection.close();
        }
    }
}

From source file:org.hp.samples.ProcessMessage.java

License:Open Source License

protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/plain");
    response.setStatus(200);/*from w  w w.ja v  a2 s  .c om*/
    PrintWriter writer = response.getWriter();
    writer.println("Here's your message:");

    // Pull out the RABBITMQ_URL environment variable
    String uri = System.getenv("RABBITMQ_URL");

    ConnectionFactory factory = new ConnectionFactory();
    try {
        factory.setUri(uri);
    } catch (KeyManagementException e) {
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (URISyntaxException e) {
        e.printStackTrace();
    }

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

    // Create the queue
    channel.queueDeclare("hello", false, false, false, null);

    String routingKey = "thekey";
    String exchangeName = "exchange";

    // Declare an exchange and bind it to the queue
    channel.exchangeDeclare(exchangeName, "direct", true);
    channel.queueBind("hello", exchangeName, routingKey);

    // Grab the message from the HTML form and publish it to the queue
    String message = request.getParameter("message");
    channel.basicPublish(exchangeName, routingKey, null, message.getBytes());
    writer.println(" Message sent to queue '" + message + "'");

    boolean autoAck = false;

    // Get the response message
    GetResponse responseMsg = channel.basicGet("hello", autoAck);

    if (responseMsg == null) {
        // No message retrieved.
    } else {
        byte[] body = responseMsg.getBody();
        // Since getBody() returns a byte array, convert to a string for
        // the user.
        String bodyString = new String(body);
        long deliveryTag = responseMsg.getEnvelope().getDeliveryTag();

        writer.println("Message received: " + bodyString);

        // Acknowledge that we received the message so that the queue
        // removes the message so that it's not sent to us again.
        channel.basicAck(deliveryTag, false);
    }

    writer.close();
}

From source file:org.hp.samples.RabbitServlet.java

License:Open Source License

protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html");
    response.setStatus(200);//from   w ww .  ja  v a2  s  .c  o  m

    PrintWriter writer = response.getWriter();

    // Create an HTML form for the user to input a message for the queue
    String docType = "<!doctype html public \"-//w3c//dtd html 4.0 " + "transitional//en\">\n";
    writer.println(docType + "<html>" + "<body>" + "<p>RabbitMQ for Java</p>"
            + "<form action='ProcessMessage' method='post'>"
            + "Message to send: <input type='text' name='message'><br>"
            + "<input type='submit' value='Send Message'>" + "</form>" + "</body>" + "</html>");

    String uri = System.getenv("RABBITMQ_URL");

    ConnectionFactory factory = new ConnectionFactory();
    try {
        factory.setUri(uri);
    } catch (KeyManagementException e) {
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (URISyntaxException e) {
        e.printStackTrace();
    }
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare("hello", false, false, false, null);

    writer.close();
}

From source file:org.iplantcollaborative.ClientRegistrar.java

License:Apache License

public void connect() throws IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(this.serverConf.getHostname());
    factory.setPort(this.serverConf.getPort());
    factory.setUsername(this.serverConf.getUserId());
    factory.setPassword(this.serverConf.getUserPwd());
    factory.setVirtualHost(this.serverConf.getVhostPublish());

    factory.setAutomaticRecoveryEnabled(true);

    this.connection = factory.newConnection();
    this.channel = this.connection.createChannel();

    LOG.info("client registrar connected - " + this.serverConf.getHostname() + ":" + this.serverConf.getPort());

    this.channel.basicQos(1);
    this.channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, "#");

    this.consumer = new DefaultConsumer(this.channel) {
        @Override/*from   ww  w .  j  a  v  a  2s  .c om*/
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String message = new String(body, "UTF-8");

            LOG.info("registration - " + message);

            BasicProperties replyProps = new BasicProperties.Builder()
                    .correlationId(properties.getCorrelationId()).build();

            ARequest request = RequestFactory.getRequestInstance(message);

            // handle lease request
            if (request instanceof RequestLease) {
                ResponseLease res = lease((RequestLease) request);
                String response_json = serializer.toJson(res);

                if (properties.getReplyTo() != null) {
                    channel.basicPublish("", properties.getReplyTo(), replyProps, response_json.getBytes());
                } else {
                    LOG.error("unable to return response. reply_to field is null");
                }
            } else {
                LOG.error("Unknown request : " + message);
            }

            channel.basicAck(envelope.getDeliveryTag(), false);
        }
    };

    this.workerThread = new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                channel.basicConsume(QUEUE_NAME, false, consumer);
                LOG.info("Waiting for registrations");
            } catch (IOException ex) {
                LOG.error("Exception occurred while consuming message", ex);
            }
        }
    });
    this.workerThread.start();
}

From source file:org.iplantcollaborative.DataStoreMessageReceiver.java

License:Apache License

public void connect() throws IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(this.serverConf.getHostname());
    factory.setPort(this.serverConf.getPort());
    factory.setUsername(this.serverConf.getUserId());
    factory.setPassword(this.serverConf.getUserPwd());
    factory.setVirtualHost(this.serverConf.getVhostSubscribe());

    factory.setAutomaticRecoveryEnabled(true);

    this.connection = factory.newConnection();
    this.channel = this.connection.createChannel();

    LOG.info("subscriber connected - " + this.serverConf.getHostname() + ":" + this.serverConf.getPort());

    this.channel.basicQos(1);
    this.queueName = this.channel.queueDeclare().getQueue();
    this.channel.queueBind(this.queueName, EXCHANGE_NAME, "#");

    this.consumer = new DefaultConsumer(this.channel) {
        @Override//from  www  .  ja va2s  .c o m
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String message = new String(body, "UTF-8");

            LOG.debug("subscribe - " + envelope.getRoutingKey() + ":" + message);

            DataStoreMessageProcessor processor = binder.getProcessor();
            if (processor != null) {
                processor.process(envelope.getRoutingKey(), message);
            } else {
                LOG.error("processor not registered");
            }

            channel.basicAck(envelope.getDeliveryTag(), false);
        }
    };

    this.workerThread = new Thread(new Runnable() {

        @Override
        public void run() {
            try {
                channel.basicConsume(queueName, consumer);
                LOG.info("Waiting for messages");
            } catch (IOException ex) {
                LOG.error("Exception occurred while consuming a message", ex);
            }
        }
    });
    this.workerThread.start();
}

From source file:org.iplantcollaborative.MessagePublisher.java

License:Apache License

public void connect() throws IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(this.serverConf.getHostname());
    factory.setPort(this.serverConf.getPort());
    factory.setUsername(this.serverConf.getUserId());
    factory.setPassword(this.serverConf.getUserPwd());
    factory.setVirtualHost(this.serverConf.getVhostPublish());

    factory.setAutomaticRecoveryEnabled(true);

    this.connection = factory.newConnection();
    this.channel = this.connection.createChannel();
    this.channel.basicQos(1);

    LOG.info("publisher connected - " + this.serverConf.getHostname() + ":" + this.serverConf.getPort());
}

From source file:org.jenkinsci.plugins.pushreceiver.RabbitMQConnector.java

License:Apache License

private RabbitMQConnector(String server, String routing) throws InstantiationException {
    try {/*  w ww  .  jav a2s. c  o m*/
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(server);
        connection = factory.newConnection();
        channel = connection.createChannel();

        channel.exchangeDeclare(EXCHANGE_NAME, "topic");
        String queueName = channel.queueDeclare().getQueue();

        if (routing == null || "".equals(routing.trim())) {
            routing = "#";
        }
        if (!routing.endsWith("#")) {
            routing = routing + ".#";
        }

        channel.queueBind(queueName, EXCHANGE_NAME, routing);

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

        running = true;
        thread = new Thread(this);
        thread.start();
    } catch (IOException e) {
        LOGGER.severe(
                "Could not create Rabbit MQ Connection. Please verify server name in the global configuration. "
                        + e);
        throw new InstantiationException();
    }
}

From source file:org.mazerunner.core.messaging.Worker.java

License:Apache License

public void doMain(String[] args) throws Exception {

    CmdLineParser parser = new CmdLineParser(this);

    // if you have a wider console, you could increase the value;
    // here 80 is also the default
    parser.setUsageWidth(80);//  ww  w. ja va  2  s.c o m

    try {
        // parse the arguments.
        parser.parseArgument(args);

        if (sparkMaster == "" || hadoopHdfs == "")
            throw new CmdLineException(parser, "Options required: --hadoop.hdfs <url>, --spark.master <url>");

        ConfigurationLoader.getInstance().setHadoopHdfsUri(hadoopHdfs);
        ConfigurationLoader.getInstance().setSparkHost(sparkMaster);
        ConfigurationLoader.getInstance().setAppName(sparkAppName);
        ConfigurationLoader.getInstance().setExecutorMemory(sparkExecutorMemory);
        ConfigurationLoader.getInstance().setDriverHost(driverHost);
        ConfigurationLoader.getInstance().setRabbitmqNodename(rabbitMqHost);

    } catch (CmdLineException e) {
        // if there's a problem in the command line,
        // you'll get this exception. this will report
        // an error message.
        System.err.println(e.getMessage());
        System.err.println("java -cp $CLASSPATH [<spark-config-options>] <main-class> [<mazerunner-args>]");
        // print the list of available options
        parser.printUsage(System.err);
        System.err.println();

        // print option sample. This is useful some time
        System.err.println("  Example: java -cp $CLASSPATH org.mazerunner.core.messaging.Worker"
                + parser.printExample(ALL));

        return;
    }

    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.basicQos(20);

    // Initialize spark context
    GraphProcessor.initializeSparkContext();

    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(TASK_QUEUE_NAME, false, consumer);

    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");

    while (true) {
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        String message = new String(delivery.getBody());

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

        // Deserialize message
        Gson gson = new Gson();
        ProcessorMessage processorMessage = gson.fromJson(message, ProcessorMessage.class);

        // Run PageRank
        GraphProcessor.processEdgeList(processorMessage);

        System.out.println(" [x] Done '" + message + "'");
        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
    }
}