Example usage for com.rabbitmq.client Envelope getDeliveryTag

Introduction

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

Prototype

public long getDeliveryTag() 

Source Link

Document

Get the delivery tag included in this parameter envelope

Usage

From source file:biospectra.classify.server.RabbitMQInputClient.java

License:Apache License

public synchronized void connect() throws IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    String hostname = this.conf.getRabbitMQHostnames().get(this.hostId);
    factory.setHost(hostname);/*from  w  w w.  j  a v  a  2  s.  c o  m*/
    factory.setPort(this.conf.getRabbitMQPort());
    factory.setUsername(this.conf.getRabbitMQUserId());
    factory.setPassword(this.conf.getRabbitMQUserPwd());

    factory.setRequestedHeartbeat(60);

    factory.setAutomaticRecoveryEnabled(true);

    this.connection = factory.newConnection();
    this.shutdownListener = new ShutdownListener() {

        @Override
        public void shutdownCompleted(ShutdownSignalException sse) {
            LOG.error("connection shutdown", sse);
        }
    };

    this.connection.addShutdownListener(this.shutdownListener);

    this.requestChannel = this.connection.createChannel();
    this.responseChannel = this.connection.createChannel();

    LOG.info("reader connected - " + hostname + ":" + this.conf.getRabbitMQPort());

    this.responseChannel.basicQos(10);
    this.queueName = this.responseChannel.queueDeclare().getQueue();

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

            this.getChannel().basicAck(envelope.getDeliveryTag(), false);

            LOG.info("> " + message);

            ClassificationResponseMessage res = ClassificationResponseMessage.createInstance(message);
            ClassificationRequest ereq = null;
            synchronized (requestMap) {
                ereq = requestMap.get(res.getReqId());
                if (ereq != null) {
                    requestMap.remove(res.getReqId());
                }
            }

            if (ereq == null) {
                LOG.error("cannot find matching request");
            } else {
                ClassificationResponse eres = new ClassificationResponse(ereq, res);

                boolean responded = false;
                synchronized (ereq) {
                    ClassificationRequest.RequestStatus status = ereq.getStatus();
                    if (status.equals(ClassificationRequest.RequestStatus.STATUS_UNKNOWN)) {
                        ereq.setStatus(ClassificationRequest.RequestStatus.STATUS_RESPONDED);
                        responded = true;
                    }

                    requestQueue.remove(ereq);
                }

                if (responded) {
                    LOG.info("res : " + ereq.getReqId());
                    if (handler != null) {
                        handler.onSuccess(eres.getReqId(), eres.getHeader(), eres.getSequence(),
                                eres.getResult(), eres.getType(), eres.getTaxonRank(), eres.getTaxonName());
                    }

                    synchronized (requestQueue) {
                        requestQueue.notifyAll();
                    }
                }
            }
        }
    };

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

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

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

        @Override
        public void run() {
            while (true) {
                boolean cont = false;
                if (requestQueue.size() > 0) {
                    ClassificationRequest ereq = requestQueue.peek();
                    Date cur = new Date();
                    if (ereq != null && cur.getTime() - ereq.getSentTime() >= QUERY_TIMEOUT) {
                        LOG.info("found timeout request");
                        //timeout
                        boolean timeout = false;
                        synchronized (ereq) {
                            ClassificationRequest.RequestStatus status = ereq.getStatus();
                            if (status.equals(ClassificationRequest.RequestStatus.STATUS_UNKNOWN)) {
                                ereq.setStatus(ClassificationRequest.RequestStatus.STATUS_TIMEOUT);
                                timeout = true;
                            }

                            requestQueue.remove(ereq);
                        }

                        synchronized (requestMap) {
                            requestMap.remove(ereq.getReqId());
                        }

                        if (timeout) {
                            LOG.info("timeout : " + ereq.getReqId());
                            handler.onTimeout(ereq.getReqId(), ereq.getHeader(), ereq.getSequence());

                            synchronized (requestQueue) {
                                requestQueue.notifyAll();
                            }
                        }
                        cont = true;
                    }
                }

                if (!cont) {
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException ex) {
                        break;
                    }
                }
            }
        }
    });
    this.timeoutThread.start();
}

---

From source file:biospectra.classify.server.RabbitMQInputServer.java

License:Apache License

public synchronized void connect() throws IOException, TimeoutException {
    LOG.info("Connecting to - " + this.conf.getRabbitMQHostname() + ":" + this.conf.getRabbitMQPort());

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(this.conf.getRabbitMQHostname());
    factory.setPort(this.conf.getRabbitMQPort());
    factory.setUsername(this.conf.getRabbitMQUserId());
    factory.setPassword(this.conf.getRabbitMQUserPwd());

    factory.setRequestedHeartbeat(60);/*from   w  ww.  ja  v a  2 s . c  o  m*/

    factory.setAutomaticRecoveryEnabled(true);

    this.connection = factory.newConnection();
    this.connection.addShutdownListener(new ShutdownListener() {

        @Override
        public void shutdownCompleted(ShutdownSignalException sse) {
            LOG.error("connection shutdown", sse);
        }
    });

    this.requestChannel = this.connection.createChannel();
    this.responseChannel = this.connection.createChannel();

    LOG.info("connected.");

    this.requestChannel.basicQos(1);
    this.requestChannel.queueDeclare("request", false, false, true, null);

    this.responseChannel.addReturnListener(new ReturnListener() {

        @Override
        public void handleReturn(int replyCode, String replyText, String exchange, String routingKey,
                AMQP.BasicProperties properties, byte[] body) throws IOException {
            String message = new String(body, "UTF-8");
            LOG.info("message not delivered to " + routingKey);
            LOG.info(message);
        }
    });

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

            this.getChannel().basicAck(envelope.getDeliveryTag(), false);

            if (handler != null) {
                ClassificationRequestMessage req = ClassificationRequestMessage.createInstance(message);
                handler.handleMessage(req, properties.getReplyTo());
            }
        }
    };

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

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

---

From source file:cc.gospy.core.remote.rabbitmq.RemoteScheduler.java

License:Apache License

private void declareConsumers() throws IOException {
    for (String queueName : targetQueueNames) {
        channel.basicConsume(queueName, false, new DefaultConsumer(channel) {
            @Override/*from  w  ww.ja v  a 2  s.co  m*/
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                    byte[] body) throws IOException {
                if (isSuspend.get()) {
                    channel.basicNack(envelope.getDeliveryTag(), false, true);
                }
                Task task = SerializationUtils.deserialize(body);
                tasks.put(task, envelope.getDeliveryTag());
                checker.schedule(() -> {
                    Task task0 = task;
                    synchronized (tasks) {
                        try {
                            if (tasks.containsKey(task0)) {
                                channel.basicNack(tasks.remove(task0), false, true);
                                logger.warn(
                                        "Task {} pending timeout (not taken), re-add to default_task_queue.",
                                        task0);
                            } else {
                                synchronized (pendingTasks) {
                                    if (pendingTasks.containsKey(task0)) {
                                        channel.basicNack(pendingTasks.remove(task0), false, true);
                                        logger.warn(
                                                "Task {} pending timeout (no feedback), re-add to default_task_queue.",
                                                task0);
                                    }
                                }
                            }
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }, timeoutInSeconds, TimeUnit.SECONDS);
            }
        });
    }
}

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From source file:com.abiquo.commons.amqp.consumer.QueueSubscriber.java

License:Open Source License

@Override
public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body) {
    try {/*from  ww w .  ja  v  a 2s  .c om*/
        consumer.consume(envelope, body);
    } catch (Throwable t) {
        LOGGER.error("Unhandled exception captured, trying to reject message to prevent consumer crash", t);

        try {
            ConsumerUtils.rejectMessage(getChannel(), envelope.getDeliveryTag());
        } catch (IOException io) {
            LOGGER.error("Unable to reject message", io);
        }
    }
}

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From source file:com.abiquo.commons.amqp.consumer.RequestBasedConsumer.java

License:Open Source License

@Override
public void consume(Envelope envelope, byte[] body) throws IOException {
    R request = deserializeRequest(envelope, body);

    if (request != null) {
        consume(request, callbacksMap.get(request.getClass()));
        ackMessage(getChannel(), envelope.getDeliveryTag());
    } else {/*ww  w .ja v  a 2  s  . c  om*/
        rejectMessage(getChannel(), envelope.getDeliveryTag());
    }
}

---

From source file:com.abiquo.commons.amqp.impl.am.AMConsumer.java

License:Open Source License

@Override
public void consume(Envelope envelope, byte[] body) throws IOException {
    TemplateStatusEvent event = TemplateStatusEvent.fromByteArray(body);

    if (event != null) {
        for (AMCallback callback : callbacks) {

            if (event.getStatus().equalsIgnoreCase("DOWNLOADING")) {
                callback.onDownloading(event);
            } else if (event.getStatus().equalsIgnoreCase("DOWNLOAD")) {
                callback.onDownload(event);
            } else if (event.getStatus().equalsIgnoreCase("ERROR")) {
                callback.onError(event);
            } else if (event.getStatus().equalsIgnoreCase("NOT_DOWNLOAD")) {
                callback.onNotDownload(event);
            } else {
                throw new IOException("Unexpected OVF Package Instance status : " + event.getStatus());
            }//w  w w  . j  av a2s  . c o  m
        }

        ackMessage(getChannel(), envelope.getDeliveryTag());
    } else {
        rejectMessage(getChannel(), envelope.getDeliveryTag());
    }
}

---

From source file:com.abiquo.commons.amqp.impl.ha.HAConsumer.java

License:Open Source License

@Override
public void consume(Envelope envelope, byte[] body) throws IOException {
    HATask task = HATask.fromByteArray(body);

    if (task != null) {
        for (HACallback callback : callbacks) {
            callback.executeHighAvailabilityTask(task);
        }/*from   www  .  jav  a2  s  .  com*/

        ackMessage(getChannel(), envelope.getDeliveryTag());
    } else {
        rejectMessage(getChannel(), envelope.getDeliveryTag());
    }
}

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From source file:com.abiquo.commons.amqp.impl.tracer.TracerConsumer.java

License:Open Source License

@Override
public void consume(Envelope envelope, byte[] body) throws IOException {
    Trace trace = Trace.fromByteArray(body);

    if (trace != null) {
        for (TracerCallback callback : callbacks) {
            callback.onTrace(trace);/*from ww w  .j  a va 2  s . co  m*/
        }

        ackMessage(getChannel(), envelope.getDeliveryTag());
    } else {
        rejectMessage(getChannel(), envelope.getDeliveryTag());
    }
}

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From source file:com.abiquo.commons.amqp.impl.vsm.VSMConsumer.java

License:Open Source License

@Override
public void consume(Envelope envelope, byte[] body) throws IOException {
    VirtualSystemEvent event = VirtualSystemEvent.fromByteArray(body);

    if (event != null) {
        for (VSMCallback callback : callbacks) {
            callback.onEvent(event);/*from ww w  .j  ava2s.  c o  m*/
        }

        ackMessage(getChannel(), envelope.getDeliveryTag());
    } else {
        rejectMessage(getChannel(), envelope.getDeliveryTag());
    }
}

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From source file:com.analogmountains.flume.RabbitMQSource.java

License:Open Source License

@Override
public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
        throws IOException {
    Map<String, String> headers = eventHeadersFromBasicProperties(properties);
    headers.put("routingKey", envelope.getRoutingKey());
    headers.put("exchange", envelope.getExchange());

    Event event = EventBuilder.withBody(body);
    event.setHeaders(headers);/*from   w  w  w . j a v a  2  s  .  com*/
    getChannelProcessor().processEvent(event);

    long deliveryTag = envelope.getDeliveryTag();
    channel.basicAck(deliveryTag, false);
}

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