Example usage for com.rabbitmq.client DefaultConsumer DefaultConsumer

Introduction

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

Prototype

public DefaultConsumer(Channel channel) 

Source Link

Document

Constructs a new instance and records its association to the passed-in channel.

Usage

From source file:dreamteamjson.DreamTeamJSON.java

/**
 * @param args the command line arguments
 * @throws java.io.IOException/*from w  w  w . j  ava 2s  .  c om*/
 */
public static void main(String[] args) throws IOException {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("datdb.cphbusiness.dk");
    factory.setUsername("Dreamteam");
    factory.setPassword("bastian");
    Connection connection = factory.newConnection();
    Channel listeningChannel = connection.createChannel();
    Channel sendingChannel = connection.createChannel();

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

    Consumer consumer = new DefaultConsumer(listeningChannel) {
        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            message = new String(body, "UTF-8");
            System.out.println(" [x] Received '" + message + "'");

            Message m = gson.fromJson(message, Message.class);
            System.out.println(m.toString());

            double interestRate = 14;

            if (m.creditScore > 600) {
                interestRate -= 4.5;
            } else if (m.creditScore < 601 && m.creditScore > 500) {
                interestRate -= 2.7;
            } else if (m.creditScore < 501 && m.creditScore > 400) {
                interestRate -= 0.9;
            }

            int durationCut = m.loanDuration / 360;

            interestRate -= (durationCut * 0.18);

            double amountCut = m.loanAmount / 100000;

            interestRate -= (amountCut * 0.18);

            // Insert bank logic

            String loanResponse = "{\"interestRate\":" + interestRate + ",\"ssn\":" + m.ssn + "}";

            sendingChannel.queueDeclare(SENDING_QUEUE_NAME, false, false, false, null);
            sendingChannel.basicPublish("", SENDING_QUEUE_NAME, null, loanResponse.getBytes());
        }
    };
    listeningChannel.basicConsume(LISTENING_QUEUE_NAME, true, consumer);

}

---

From source file:dreamteamxmltranslator.Translator.java

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

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

    channel.queueDeclare(LISTENING_QUEUE_NAME, false, false, false, null);
    channel.queueBind(LISTENING_QUEUE_NAME, EXCHANGE_NAME, "DreamTeamBankXML");

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

    Consumer consumer = new DefaultConsumer(channel) {
        @Override//  www . j  a  va  2s . c o m
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            try {
                message = new String(body, "UTF-8");
                System.out.println(" [x] Received '" + message + "'");

                String[] arr = message.split(",");
                tester(arr);
            } catch (IOException_Exception ex) {
                Logger.getLogger(Translator.class.getName()).log(Level.SEVERE, null, ex);
            }

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

}

---

From source file:edu.kit.dama.mdm.audit.servlet.RabbitMQInitializerListener.java

License:Apache License

@Override
public void contextInitialized(ServletContextEvent sce) {
    loadConfiguration();/*w ww .  j  av  a 2 s .c o  m*/

    if (!CONFIGURED) {
        LOGGER.warn("Skipping initialization of RabbitMQ consumer.");
        return;
    }

    try {
        LOGGER.debug("Intitializing RabbitMQ consumer.");
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(hostname);
        connection = factory.newConnection();
        channel = connection.createChannel();
        LOGGER.debug("Declaring topic based exchange with name '{}'", exchange);
        channel.exchangeDeclare(exchange, "topic", true);
        String queueName = channel.queueDeclare().getQueue();
        LOGGER.debug("Using queue with name '{}'. Binding queue to exchange.", queueName);
        channel.queueBind(queueName, exchange, "audit.*");
        LOGGER.debug("Queue bound to exchange with filter 'audit.*'. Starting consumer.");

        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");
                try {
                    LOGGER.debug("Handling new audit event.");
                    AuditEvent event = AuditEvent.fromJson(message);
                    LOGGER.debug("Submitting event to attached consumers.");
                    for (AbstractAuditConsumer consumer : AuditManager.getInstance().getConsumers()) {
                        consumer.consume(event);
                    }
                    LOGGER.debug("Event submitted to all consumers.");
                } catch (FormatException ex) {
                    LOGGER.error("Failed to consume audit event from message '" + message + "'", ex);
                }
            }
        };
        channel.basicConsume(queueName, true, consumer);
        LOGGER.debug("RabbitMQ consumer successfully initialized.");
    } catch (IOException | TimeoutException ex) {
        LOGGER.error("Failed to initialize RabbitMQ audit distributor.", ex);
    }
}

---

From source file:edu.kit.dama.util.test.RabbitMQReceiver.java

License:Apache License

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

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    final Connection connection = factory.newConnection();
    final Channel channel = connection.createChannel();

    channel.exchangeDeclare(EXCHANGE_NAME, "topic", true);
    String queueName = channel.queueDeclare().getQueue();
    channel.queueBind(queueName, EXCHANGE_NAME, "audit.*");

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

    /*  final Consumer consumer = new DefaultConsumer(channel) {
    @Override/*from  ww  w.  j a v a 2 s  . c  o m*/
    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);
    } finally {
      System.out.println(" [x] Done");
      channel.basicAck(envelope.getDeliveryTag(), false);
    }
    }
    };
    channel.basicConsume(TASK_QUEUE_NAME, false, consumer);
    }*/
    /*   QueueingConsumer consumer = new QueueingConsumer(channel);
            
           /*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 + "'");
    }
           };*/
    /*channel.basicConsume(queueName, true, consumer);
           QueueingConsumer.Delivery delivery = consumer.nextDelivery(10000);
           if (delivery != null) {
    byte[] message = delivery.getBody();
    System.out.println("MESS " + new String(message));
           }*/
    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 + "'");
        }
    };
    channel.basicConsume(queueName, true, consumer);

    // System.exit(0);
}

---

From source file:eu.europeana.servicebus.client.rabbitmq.RabbitMQClientAsync.java

/**
 * RabbitMQ implementation of ESBClient/* w w w . j a  va2  s.  c  o  m*/
 *
 * @param host The host to connect to
 * @param incomingQueue The incoming queue
 * @param outgoingQueue The outgoing queue
 * @param username Username
 * @param password Password
 * @param consumer The consumer implementation - It can be null. It allows asynchronous consumers as well as enables
 * custom behaviour handling upon incoming message. The default message handling is and should be agnostic of the
 * method semantics to be implemented
 * @throws IOException
 */
public RabbitMQClientAsync(String host, String incomingQueue, String outgoingQueue, String username,
        String password, Consumer consumer) throws IOException {
    this.host = host;
    this.incomingQueue = incomingQueue;
    this.outgoingQueue = outgoingQueue;
    this.username = username;
    this.password = password;
    if (consumer == null) {
        this.consumer = new DefaultConsumer(receiveChannel);
    } else {
        this.consumer = consumer;
    }
    ConnectionFactory factory = new ConnectionFactory();
    builder = new AMQP.BasicProperties.Builder();
    factory.setHost(host);
    factory.setUsername(username);
    factory.setPassword(password);

    connection = factory.newConnection();
    sendChannel = connection.createChannel();
    receiveChannel = connection.createChannel();
    sendChannel.queueDeclare(outgoingQueue, true, false, false, null);
    receiveChannel.queueDeclare(incomingQueue, true, false, false, null);
    receiveChannel.basicConsume(incomingQueue, true, consumer);

}

---

From source file:genqa.ExportRabbitMQVerifier.java

License:Open Source License

private Consumer createConsumer(final Channel channel) {
    return new DefaultConsumer(channel) {
        @Override//from w w  w  .  j  av  a 2  s .c  om
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            long deliveryTag = envelope.getDeliveryTag();

            String row[] = ExportOnServerVerifier.RoughCSVTokenizer.tokenize(new String(body, Charsets.UTF_8));
            if (row.length != 29) {
                return;
            }
            ExportOnServerVerifier.ValidationErr err = null;
            try {
                err = ExportOnServerVerifier.verifyRow(row);
            } catch (ExportOnServerVerifier.ValidationErr validationErr) {
                validationErr.printStackTrace();
            }
            if (err != null) {
                System.out.println("ERROR in validation: " + err.toString());
            }

            if (++m_verifiedRows % VALIDATION_REPORT_INTERVAL == 0) {
                System.out.println("Verified " + m_verifiedRows + " rows.");
            }

            channel.basicAck(deliveryTag, false);
        }
    };
}

---

From source file:getbanks2.GetBanks2.java

/**
 * @param args the command line arguments
 * @throws java.io.IOException/*from ww w.  j  av 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("datdb.cphbusiness.dk");
    factory.setUsername("Dreamteam");
    factory.setPassword("bastian");
    Connection connection = factory.newConnection();
    Channel listeningChannel = connection.createChannel();
    Channel sendingChannel = connection.createChannel();

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

    Consumer consumer = new DefaultConsumer(listeningChannel) {
        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            message = new String(body, "UTF-8");
            System.out.println(" [x] Received '" + message + "'");

            String[] arr = message.split(",");

            String banks = getBanks(arr[0], Integer.parseInt(arr[1]), Double.parseDouble(arr[2]),
                    Integer.parseInt(arr[3]));

            message += "," + banks;

            System.out.println(message);

            sendingChannel.queueDeclare(SENDING_QUEUE_NAME, false, false, false, null);
            sendingChannel.basicPublish("", SENDING_QUEUE_NAME, null, message.getBytes());

        }
    };
    listeningChannel.basicConsume(LISTENING_QUEUE_NAME, true, consumer);

}

---

From source file:getcreditscore.GetCreditScore.java

public static void main(String[] args) throws IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("datdb.cphbusiness.dk");
    factory.setUsername("Dreamteam");
    factory.setPassword("bastian");

    Connection connection = factory.newConnection();
    Channel sendingChannel = connection.createChannel();
    Channel listeningChannel = connection.createChannel();

    listeningChannel.queueDeclare(LISTENING_QUEUE_NAME, false, false, false, null);

    Consumer consumer = new DefaultConsumer(listeningChannel) {
        @Override//from w  w  w. j  a  va2s .c  om
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            message = new String(body, "UTF-8");
            System.out.println(" [x] Received '" + message + "'");

            String[] arr = message.split(",");

            sendingChannel.queueDeclare(SENDING_QUEUE_NAME, false, false, false, null);

            String message = arr[0] + "," + creditScore(arr[0]) + "," + arr[1] + "," + arr[2];

            sendingChannel.basicPublish("", SENDING_QUEUE_NAME, null, message.getBytes());
            System.out.println(" [x] Sent '" + message + "'");

        }
    };

    listeningChannel.basicConsume(LISTENING_QUEUE_NAME, true, consumer);
}

---

From source file:hippo.server.amqp.RpcServer.java

License:Mozilla Public License

/**
 * Registers a consumer on the reply queue.
 * /*from  w  w  w .  ja  v  a2s. c  o  m*/
 * @throws IOException
 *             if an error is encountered
 * @return the newly created and registered consumer
 */
protected DefaultConsumer setupConsumer() throws IOException {
    DefaultConsumer consumer = new DefaultConsumer(_channel) {

        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties,
                byte[] body) throws IOException {
            if (_mainloopRunning) {
                Delivery request = new Delivery(envelope, properties, body);
                processRequest(request);
            }
        }
    };
    _channel.basicConsume(_queueName, true, consumer);
    return consumer;
}

---

From source file:io.github.mattcarrier.metrics.transport.rabbit.RabbitClient.java

License:Apache License

/**
 * Registers a {@link TransportableMetric} consumer with RabbitMQ.
 *
 * @param consumerTag//from   w w  w .  j a  v a2s  .  c  o m
 *     the consumer tag
 * @param consumer
 *     the consumer
 * @throws IOException
 *     if there are any issues handling the deliveries
 */
public <T> void consume(String consumerTag, MetricConsumer<T> consumer) throws IOException {
    channel.basicConsume(queueName, true, consumerTag, new DefaultConsumer(channel) {
        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            try {
                consumer.consume(serializer.deserialize(body));
            } catch (Exception e) {
                throw new IOException(e);
            }
        }
    });
}

---

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