Example usage for com.rabbitmq.client Channel basicConsume

Introduction

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

Prototype

String basicConsume(String queue, boolean autoAck, Consumer callback) throws IOException;

Source Link

Document

Start a non-nolocal, non-exclusive consumer, with a server-generated consumerTag.

Usage

From source file:pubsub.RecieveLogs.java

public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("datdb.cphbusiness.dk");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

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

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

    Consumer consumer = new DefaultConsumer(channel) {
        @Override//from  www . j  a v  a 2  s  .com
        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);
}

---

From source file:rabbitirc.RabbitIRC.java

public static void main(String[] argv) throws java.io.IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Random rnd = new Random();
    int indeks = rnd.nextInt(usernamelist.length);
    String Randusername = usernamelist[indeks] + rnd.nextInt(100);

    user = Randusername;//from   w w w. j  ava  2 s  . c  o  m
    channellist.add("lounge");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    String queueName = channel.queueDeclare().getQueue();
    channel.exchangeDeclare(EXCHANGE_NAME, "direct");

    Scanner sc = new Scanner(System.in);

    channel.queueBind(queueName, EXCHANGE_NAME, "lounge");
    channellist.add("lounge");
    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 + "'");
        }
    };
    System.out.println(" Welcome " + user + " to Channel lounge");
    System.out.println(" Queries: ");
    System.out.println(" 1. /NICK <Username>            : Change username ");
    System.out.println(" 2. /JOIN <Channel Name>        : Join Channel");
    System.out.println(" 3. @<Channel Name> <Message>   : Send message to Spesific Channel");
    System.out.println(" 4. /LEAVE <Channel Name>       : Leave Channel");
    System.out.println(" 5. <Random text>               : BroadCast");
    System.out.println(" 6. /EXIT                       : Exit App");
    while (true) {
        channel.basicConsume(queueName, true, consumer);
        String input = sc.nextLine();
        String[] query;
        if ((query = CommandRegexes.NICK.match(input)) != null) {
            String Nickname = query[0];
            user = Nickname;
            System.out.println(" [x] Your Nickname '" + Nickname + "'");

        } else if ((query = CommandRegexes.JOIN.match(input)) != null) {
            String channel_name = query[0];
            channel.queueBind(queueName, EXCHANGE_NAME, channel_name);
            channellist.add(channel_name);
            System.out.println(" [x] you had Join '" + channel_name + "'");

        } else if ((query = CommandRegexes.LEAVE.match(input)) != null) {
            String channel_name = query[0];
            if (channellist.contains(channel_name)) {
                channellist.remove(channellist.indexOf(channel_name));
                channel.queueUnbind(queueName, EXCHANGE_NAME, channel_name);
                System.out.println(" [x] you had leave '" + channel_name);
            } else {
                System.out.println(" [x] you're not in the channel " + channel_name);
            }
            System.out.println(" [x] you had leave '" + channel_name + "'");

        } else if (CommandRegexes.EXIT.match(input) != null) {
            channel.close();
            connection.close();
            break;

        } else if ((query = CommandRegexes.MESSAGE_CHANNEL.match(input)) != null) {
            String channel_name = query[0];
            if (channellist.contains(channel_name)) {
                String message = "[" + channel_name + "] (" + user + ") " + query[1];
                channel.basicPublish(EXCHANGE_NAME, channel_name, null, message.getBytes());
                System.out.println(" [x] Sent '" + message + "'");
                System.out.println(" : to '" + channel_name + "'");
            } else {
                System.out.println(" [x] No Channel " + channel_name + " on your list");
            }
        } else {
            System.out.println(" [x] Broadcasting '" + input + "'");
            for (String channellist1 : channellist) {
                String messages = "[" + channellist1 + "] (" + user + ") " + input;
                channel.basicPublish(EXCHANGE_NAME, channellist1, null, messages.getBytes());
            }
            System.out.println(" [x] OK ;D");
        }
    }

}

---

From source file:rabbitmqapp.Recv.java

public static void main(String... args) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    String uri = "amqp://ytsoedex:Qu2LCiBJ5x9fhRUyLYkMhJqsURJ9dkSP@chicken.rmq.cloudamqp.com/ytsoedex";
    factory.setUri(uri);/*  w w  w  .j  a  v a  2 s  . c  o m*/

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

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

    Consumer consumer = new DefaultConsumer(channel) {
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            System.out.println(String.format("The consumer tag is %s", consumerTag));
            ProductOrder message = (ProductOrder) RabbitUtility.getObject(body);

            //String message = new String(body, "UTF-8");
            System.out.println(" [x] Received name'" + message.getName() + "'");
            System.out.println(" [x] Received price'" + message.getPrice() + "'");
        }
    };
    channel.basicConsume(QUENAME, true, consumer);
}

---

From source file:rabbitmq_clienttest.Simple_receiver.java

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

    db = new Database_connector_sqlite();

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    factory.setUsername("es");
    factory.setPassword("a");
    //factory.setVirtualHost("/");
    factory.setPort(5672);/*from   www .j  a v  a 2  s .  co m*/
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

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

    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 + "'");
            doWork(message);

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

}

---

From source file:reactor.rabbitmq.ConnectionRecoveryTests.java

License:Open Source License

@Test
public void sendRetryOnFailureAllFluxMessagesShouldBeSentAndConsumed() throws Exception {
    int nbMessages = 10;
    CountDownLatch latch = new CountDownLatch(nbMessages);
    AtomicInteger counter = new AtomicInteger();
    Channel channel = connection.createChannel();
    channel.basicConsume(queue, true, new DefaultConsumer(channel) {

        @Override//w  w w  .j a  va2s .  com
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) {
            counter.incrementAndGet();
            latch.countDown();
        }
    });

    Flux<OutboundMessage> msgFlux = Flux.range(0, nbMessages)
            .map(i -> new OutboundMessage("", queue, "".getBytes())).delayElements(ofMillis(200));

    sender = createSender(new SenderOptions().connectionMono(connectionMono));
    sender.send(msgFlux,
            new SendOptions().exceptionHandler(new ExceptionHandlers.RetrySendingExceptionHandler(ofSeconds(5),
                    ofMillis(100), ExceptionHandlers.CONNECTION_RECOVERY_PREDICATE)))
            .subscribe();

    closeAndWaitForRecovery((RecoverableConnection) connectionMono.block());

    assertTrue(latch.await(10, TimeUnit.SECONDS));
    assertEquals(nbMessages, counter.get());
}

---

From source file:reactor.rabbitmq.RabbitFluxTests.java

License:Open Source License

@Test
public void sender() throws Exception {
    int nbMessages = 10;
    CountDownLatch latch = new CountDownLatch(nbMessages);
    AtomicInteger counter = new AtomicInteger();
    Channel channel = connection.createChannel();
    channel.basicConsume(queue, true, new DefaultConsumer(channel) {

        @Override/*from   w ww . java 2 s .  c o  m*/
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            counter.incrementAndGet();
            latch.countDown();
        }
    });

    Flux<OutboundMessage> msgFlux = Flux.range(0, nbMessages)
            .map(i -> new OutboundMessage("", queue, "".getBytes()));

    sender = createSender();
    sender.send(msgFlux).subscribe();
    assertTrue(latch.await(1, TimeUnit.SECONDS));
    assertEquals(nbMessages, counter.get());
}

---

From source file:reactor.rabbitmq.ReactorRabbitMqTests.java

License:Open Source License

@Test
public void sender() throws Exception {
    int nbMessages = 10;
    CountDownLatch latch = new CountDownLatch(nbMessages);
    AtomicInteger counter = new AtomicInteger();
    Channel channel = connection.createChannel();
    channel.basicConsume(queue, true, new DefaultConsumer(channel) {

        @Override/*w ww  . j a v  a  2  s.c om*/
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            counter.incrementAndGet();
            latch.countDown();
        }
    });

    Flux<OutboundMessage> msgFlux = Flux.range(0, nbMessages)
            .map(i -> new OutboundMessage("", queue, "".getBytes()));

    sender = ReactorRabbitMq.createSender();
    sender.send(msgFlux).subscribe();
    assertTrue(latch.await(1, TimeUnit.SECONDS));
    assertEquals(nbMessages, counter.get());
}

---

From source file:reactor.rabbitmq.ReactorRabbitMqTests.java

License:Open Source License

@Test
public void publishConfirms() throws Exception {
    int nbMessages = 10;
    CountDownLatch consumedLatch = new CountDownLatch(nbMessages);
    CountDownLatch confirmedLatch = new CountDownLatch(nbMessages);
    AtomicInteger counter = new AtomicInteger();
    Channel channel = connection.createChannel();
    channel.basicConsume(queue, true, new DefaultConsumer(channel) {

        @Override//from  ww  w. j a va2 s. c  o m
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            counter.incrementAndGet();
            consumedLatch.countDown();
        }
    });

    Flux<OutboundMessage> msgFlux = Flux.range(0, nbMessages)
            .map(i -> new OutboundMessage("", queue, "".getBytes()));

    sender = ReactorRabbitMq.createSender();
    sender.sendWithPublishConfirms(msgFlux).subscribe(outboundMessageResult -> {
        confirmedLatch.countDown();
    });
    assertTrue(consumedLatch.await(1, TimeUnit.SECONDS));
    assertTrue(confirmedLatch.await(1, TimeUnit.SECONDS));
    assertEquals(nbMessages, counter.get());
}

---

From source file:reactor.rabbitmq.Receiver.java

License:Open Source License

public Flux<Delivery> consumeNoAck(final String queue, ReceiverOptions options) {
    // TODO track flux so it can be disposed when the sender is closed?
    // could be also developer responsibility
    return Flux.create(emitter -> {
        connectionMono.subscribe(connection -> {
            try {
                // TODO handle exception
                Channel channel = connection.createChannel();
                final DefaultConsumer consumer = new DefaultConsumer(channel) {
                    @Override/*from  w  w  w . j  ava2  s.c  o m*/
                    public void handleDelivery(String consumerTag, Envelope envelope,
                            AMQP.BasicProperties properties, byte[] body) throws IOException {
                        emitter.next(new Delivery(envelope, properties, body));
                    }

                    @Override
                    public void handleCancel(String consumerTag) throws IOException {
                        LOGGER.warn("Flux consumer {} has been cancelled", consumerTag);
                    }
                };
                final String consumerTag = channel.basicConsume(queue, true, consumer);
                emitter.onDispose(() -> {
                    try {
                        if (channel.isOpen() && channel.getConnection().isOpen()) {
                            channel.basicCancel(consumerTag);
                            channel.close();
                        }
                    } catch (TimeoutException | IOException e) {
                        throw new ReactorRabbitMqException(e);
                    }
                });
            } catch (IOException e) {
                throw new ReactorRabbitMqException(e);
            }
        });

    }, options.getOverflowStrategy());
}

---

From source file:reactor.rabbitmq.Receiver.java

License:Open Source License

public Flux<AcknowledgableDelivery> consumeManuelAck(final String queue, ReceiverOptions options) {
    // TODO track flux so it can be disposed when the sender is closed?
    // could be also developer responsibility
    return Flux.create(emitter -> {
        connectionMono.subscribe(connection -> {
            try {

                Channel channel = connection.createChannel();
                if (options.getQos() != 0) {
                    channel.basicQos(options.getQos());
                }//from w w w .ja va 2 s  .c o m
                final DefaultConsumer consumer = new DefaultConsumer(channel) {
                    @Override
                    public void handleDelivery(String consumerTag, Envelope envelope,
                            AMQP.BasicProperties properties, byte[] body) throws IOException {
                        AcknowledgableDelivery message = new AcknowledgableDelivery(envelope, properties, body,
                                getChannel());
                        if (options.getHookBeforeEmit().apply(emitter, message)) {
                            emitter.next(message);
                        }
                    }
                };
                final String consumerTag = channel.basicConsume(queue, false, consumer);
                emitter.onDispose(() -> {

                    try {
                        if (channel.isOpen() && channel.getConnection().isOpen()) {
                            channel.basicCancel(consumerTag);
                            channel.close();
                        }
                    } catch (TimeoutException | IOException e) {
                        throw new ReactorRabbitMqException(e);
                    }
                });
            } catch (IOException e) {
                throw new ReactorRabbitMqException(e);
            }
        });
    }, options.getOverflowStrategy());
}

---

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