Example usage for com.rabbitmq.client BasicProperties getCorrelationId

Introduction

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

Prototype

public abstract String getCorrelationId();

Source Link

Document

Retrieve the value in the correlationId field.

Usage

From source file:cs.rsa.ts14dist.appserver.RabbitMQDaemon.java

License:Apache License

@Override
public void run() {

    Connection connection = null;
    Channel channel = null;//from ww w  . j  av  a2  s . co  m
    try {
        ConnectionFactory factory = new ConnectionFactory();
        logger.info("Starting RabbitMQDaemon, MQ IP = " + hostname);
        factory.setHost(hostname);

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

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

        channel.basicQos(1);

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

        while (true) {
            String response = null;

            // Block and fetch next msg from queue
            QueueingConsumer.Delivery delivery = consumer.nextDelivery();

            BasicProperties props = delivery.getProperties();
            BasicProperties replyProps = new BasicProperties.Builder().correlationId(props.getCorrelationId())
                    .build();

            try {
                String message = new String(delivery.getBody(), "UTF-8");
                logger.trace("Received msg: " + message);

                // Convert the message to a JSON request object
                JSONObject request = (JSONObject) JSONValue.parse(message);

                // Delegate to the server request handler for handling the
                // request and computing an answer
                JSONObject reply = serverRequestHandler.handleRequest(request);

                // Convert the answer back into a string for replying to
                // client
                response = reply.toJSONString();
            } catch (Exception e) {
                logger.error(" Exception in MQDAemon run()/while true] " + e.toString());
                response = "wrong";
            } finally {
                logger.trace("Returning answer: " + response);
                channel.basicPublish("", props.getReplyTo(), replyProps, response.getBytes("UTF-8"));
                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
                logger.trace("Answer acknowledged.");
            }
        }
    } catch (Exception e) {
        logger.error("Exception in daemon's outer loop: nested exception" + e.getMessage());
        e.printStackTrace();
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (Exception ignore) {
            }
        }
    }
}

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From source file:dfki.sb.rabbitmqjava.RabbitMQObjectStreamServer.java

License:Open Source License

private static void processSendAndRecivePackets(QueueingConsumer consumer, Channel channel)
        throws InterruptedException, IOException {
    while (true) {
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        BasicProperties props = delivery.getProperties();
        BasicProperties replyProps = new BasicProperties.Builder().correlationId(props.getCorrelationId())
                .build();//from  w  w  w . j ava  2 s.c o  m
        try {
            byte[] body = delivery.getBody();
            if (body.length == 0) {
                break;
            } else {
                Object obj = SerializationUtils.deserialize(body);
                if (obj instanceof MarketData) {
                    MarketData response = sendMarketData((MarketData) obj);
                    channel.basicPublish("", props.getReplyTo(), replyProps,
                            SerializationUtils.serialize(response));
                } else {
                    QuoteRequest response = sendQuoteRequest((QuoteRequest) obj);
                    channel.basicPublish("", props.getReplyTo(), replyProps,
                            SerializationUtils.serialize(response));
                }
            }
        } catch (IOException e) {
            System.out.println(" [.] " + e.toString());
        } finally {
            channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
        }
    }
}

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From source file:dfki.sb.rabbitmqjava.RabbitMQServer.java

License:Open Source License

public static void main(String[] argv) {
    Connection connection = null;
    Channel channel = null;/*from  w  w  w  .  j  a v a  2s  .c o m*/
    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        connection = factory.newConnection();
        channel = connection.createChannel();
        channel.queueDeclare(RPC_QUEUE_NAME, false, false, false, null);
        channel.basicQos(1);
        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(RPC_QUEUE_NAME, false, consumer);
        System.out.println("Starting server waiting for client requests:");
        while (true) {
            QueueingConsumer.Delivery delivery = consumer.nextDelivery();
            BasicProperties props = delivery.getProperties();
            BasicProperties replyProps = new BasicProperties.Builder().correlationId(props.getCorrelationId())
                    .build();
            DataInputStream dis = new DataInputStream(
                    new BufferedInputStream(new ByteArrayInputStream(delivery.getBody())));
            try {
                int type = dis.readInt();
                byte[] response;
                if (type == 2) {
                    response = handleMarketRequest(dis);
                } else {
                    response = handleQuoteRequest(dis);
                }
                channel.basicPublish("", props.getReplyTo(), replyProps, response);
                dis.close();
            } catch (IOException | ClassNotFoundException e) {
                System.out.println(" [.] " + e.toString());
            } finally {
                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
        }
    } catch (IOException | InterruptedException | ShutdownSignalException | ConsumerCancelledException e) {
        e.printStackTrace();
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (IOException ignore) {
            }
        }
    }
}

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From source file:es.devcircus.rabbitmq_examples.rabbitmq_rpc.RPCServer.java

License:Open Source License

/**
 *
 * @param argv//from   w  ww.  j  av  a2s .  c o  m
 */
public static void main(String[] argv) {
    Connection connection = null;
    Channel channel = null;
    try {
        ConnectionFactory factory = new ConnectionFactory();
        //            factory.setHost("localhost");
        factory.setHost("192.168.0.202");
        //            factory.setPort(5671);

        //            factory.useSslProtocol();

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

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

        channel.basicQos(1);

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

        System.out.println(" [x] Awaiting RPC requests");

        while (true) {
            String response = null;

            QueueingConsumer.Delivery delivery = consumer.nextDelivery();

            BasicProperties props = delivery.getProperties();
            BasicProperties replyProps = new BasicProperties.Builder().correlationId(props.getCorrelationId())
                    .build();

            try {
                String message = new String(delivery.getBody(), "UTF-8");
                int n = Integer.parseInt(message);

                System.out.println(" [.] fib(" + message + ")");
                response = "" + fib(n);
            } catch (Exception e) {
                System.out.println(" [.] " + e.toString());
                response = "";
            } finally {
                channel.basicPublish("", props.getReplyTo(), replyProps, response.getBytes("UTF-8"));

                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
        }
    } catch (IOException | InterruptedException | ShutdownSignalException | ConsumerCancelledException e) {
        System.out.println(e.toString());
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (Exception ignore) {
            }
        }
    }
}

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From source file:gash.router.server.MessageServer.java

License:Apache License

public void createQueue() throws IOException, ShutdownSignalException, ConsumerCancelledException,
        InterruptedException, SQLException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    channel.queueDeclare("inbound_queue", false, false, false, null);
    channel.basicQos(1);/* w w  w .  j a v  a2 s . co m*/
    postgre = new PostgreSQL(url, username, password, dbname, ssl);
    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume("inbound_queue", false, consumer);
    //       Map<String, byte[]> map = new HashMap<String, byte[]>();
    while (true) {
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        BasicProperties props = delivery.getProperties();
        String request = props.getType();
        System.out.println(request);

        if (request != null) {
            if (request.equals("get")) {
                String key = new String(delivery.getBody());
                BasicProperties replyProps = new BasicProperties.Builder()
                        .correlationId(props.getCorrelationId()).build();
                byte[] image = postgre.get(key);
                channel.basicPublish("", props.getReplyTo(), replyProps, image);
                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }

            if (request.equals("put")) {
                byte[] image = delivery.getBody();
                postgre.put(props.getUserId(), image);
                BasicProperties replyProps = new BasicProperties.Builder()
                        .correlationId(props.getCorrelationId()).build();

                channel.basicPublish("", props.getReplyTo(), replyProps, image);
                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
            if (request.equals("post")) {
                System.out.println("Message Server");
                String key = postgre.post(delivery.getBody());
                BasicProperties replyProps = new BasicProperties.Builder()
                        .correlationId(props.getCorrelationId()).build();

                channel.basicPublish("", props.getReplyTo(), replyProps, key.getBytes());
                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
            if (request.equals("delete")) {
                String key = new String(delivery.getBody());
                postgre.delete(key);
            }

        }
    }
}

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From source file:in.cs654.chariot.ashva.AshvaServer.java

License:Open Source License

public static void main(String[] args) {
    Connection connection = null;
    Channel channel;/*from www  .  java2s  .  com*/
    try {
        final ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(HOST_IP_ADDR);
        connection = factory.newConnection();
        channel = connection.createChannel();
        channel.queueDeclare(RPC_QUEUE_NAME, false, false, false, null);
        channel.basicQos(1);

        final QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(RPC_QUEUE_NAME, false, consumer);
        LOGGER.info("Ashva Server started. Waiting for requests...");

        AshvaHelper.joinOrStartChariotPool();
        AshvaHelper.startHeartbeat();

        while (true) {
            final QueueingConsumer.Delivery delivery = consumer.nextDelivery();
            BasicResponse response = new BasicResponse();
            BasicRequest request = new BasicRequest();
            final BasicProperties props = delivery.getProperties();
            final BasicProperties replyProps = new BasicProperties.Builder()
                    .correlationId(props.getCorrelationId()).build();
            try {
                final DatumReader<BasicRequest> avroReader = new SpecificDatumReader<BasicRequest>(
                        BasicRequest.class);
                decoder = DecoderFactory.get().binaryDecoder(delivery.getBody(), decoder);
                request = avroReader.read(request, decoder);
                response = AshvaProcessor.process(request);

            } catch (Exception e) {
                e.printStackTrace();
                LOGGER.severe("Error in handling request: " + e.getMessage());
                response = ResponseFactory.getErrorResponse(request);

            } finally {
                baos.reset();
                final DatumWriter<BasicResponse> avroWriter = new SpecificDatumWriter<BasicResponse>(
                        BasicResponse.class);
                encoder = EncoderFactory.get().binaryEncoder(baos, encoder);
                avroWriter.write(response, encoder);
                encoder.flush();
                LOGGER.info("Responding to request id " + request.getRequestId() + " " + response.getStatus());
                channel.basicPublish("", props.getReplyTo(), replyProps, baos.toByteArray());
                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        LOGGER.severe("Error in RPC server: " + e.getMessage());
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (Exception ignore) {
            }
        }
    }
}

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From source file:in.cs654.chariot.prashti.PrashtiServer.java

License:Open Source License

public static void main(String[] args) {
    Connection connection = null;
    Channel channel;/* w w  w  .  j  a va2 s  .  c om*/
    try {
        final ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(HOST_IP_ADDR);
        connection = factory.newConnection();
        channel = connection.createChannel();
        channel.queueDeclare(RPC_QUEUE_NAME, false, false, false, null);
        channel.basicQos(1);

        final QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(RPC_QUEUE_NAME, false, consumer);
        LOGGER.info("Prashti Server started. Waiting for requests...");

        final List<Prashti> prashtiList = D2Client.getOnlinePrashtiServers();
        final String ipAddr = CommonUtils.getIPAddress();
        prashtiList.add(new Prashti(ipAddr));
        LOGGER.info("Notifying D2 to set Prashti Server IP Address");
        D2Client.setPrashtiServers(prashtiList);

        while (true) {
            final QueueingConsumer.Delivery delivery = consumer.nextDelivery();
            BasicResponse response = new BasicResponse();
            BasicRequest request = new BasicRequest();
            final BasicProperties props = delivery.getProperties();
            final BasicProperties replyProps = new BasicProperties.Builder()
                    .correlationId(props.getCorrelationId()).build();
            try {
                final DatumReader<BasicRequest> avroReader = new SpecificDatumReader<BasicRequest>(
                        BasicRequest.class);
                decoder = DecoderFactory.get().binaryDecoder(delivery.getBody(), decoder);
                request = avroReader.read(request, decoder);
                response = RequestProcessor.process(request);

            } catch (Exception e) {
                e.printStackTrace();
                LOGGER.severe("Error in handling request: " + e.getMessage());
                response = ResponseFactory.getErrorResponse(request);

            } finally {
                baos.reset();
                final DatumWriter<BasicResponse> avroWriter = new SpecificDatumWriter<BasicResponse>(
                        BasicResponse.class);
                encoder = EncoderFactory.get().binaryEncoder(baos, encoder);
                avroWriter.write(response, encoder);
                encoder.flush();
                LOGGER.info("Responding to request id " + request.getRequestId() + " " + response.getStatus());
                channel.basicPublish("", props.getReplyTo(), replyProps, baos.toByteArray());
                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        LOGGER.severe("Error in RPC server: " + e.getMessage());
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (Exception ignore) {
            }
        }
    }
}

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From source file:io.ventu.rpc.amqp.AmqpResponderImpl.java

License:MIT License

CompletableFuture<Void> handleDeliveryInternal(String consumerTag, Envelope envelope, BasicProperties props,
        byte[] body) {
    CompletableFuture<byte[]> answer = handleDelivery(envelope.getRoutingKey(), props.getHeaders(), body);
    return answer.handleAsync((payload, throwable) -> {
        try {//  ww w.j ava2  s  .  c om
            if (throwable != null) {
                payload = String.format("{\"error\": \"Unhandled internal error: %s\"}", throwable.getMessage())
                        .getBytes();
            }
            BasicProperties resprops = new Builder().correlationId(props.getCorrelationId())
                    .contentType(CONTENT_TYPE).contentEncoding(ENCODING).build();
            channel.basicPublish(channelProvider.rpcExchange(), props.getReplyTo(), resprops, payload);
        } catch (IOException e) {
            // this is suppressed in the public call
            throw new IllegalStateException(e);
        }
        return null;
    });
}

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From source file:io.ventu.rpc.amqp.AmqpResponderImplTest.java

License:MIT License

@Test
public void handleDeliveryInternal_responsePayloadPublished()
        throws TimeoutException, IOException, EncodingException, ExecutionException, InterruptedException {
    String routingKeyPattern = "routingKeyPattern";
    String correlationId = "123456789";

    Channel channel = mock(Channel.class);
    ChannelProvider provider = mock(ChannelProvider.class);
    doReturn("replyExchange").when(provider).rpcExchange();
    doReturn(channel).when(provider).provide(anyString(), any());

    Map<String, Object> headers = Maps.newHashMap();
    headers.put("apikey", "234435345345");

    final List<Boolean> invocations = Lists.newArrayList();
    final CompletableFuture<byte[]> promise = new CompletableFuture<>();

    AmqpResponderImpl responder = new AmqpResponderImpl(provider, routingKeyPattern) {
        @Override/*from   w  w w. jav a2s  . c om*/
        <RQ, RS> CompletableFuture<byte[]> handleDelivery(String routingKey, Map<String, Object> actualHeaders,
                byte[] payload) {
            invocations.add(Boolean.TRUE);
            assertEquals(Req.class.getName(), routingKey);
            assertEquals("ABC", new String(payload));
            assertEquals(headers.get("apikey"), actualHeaders.get("apikey"));
            promise.complete("CBA".getBytes());
            return promise;
        }
    };

    Envelope env = new Envelope(1L, false, "incomingEexchange", Req.class.getName());
    BasicProperties props = new Builder().correlationId(correlationId).replyTo("replyHere").headers(headers)
            .build();

    doAnswer(new Answer() {
        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            invocations.add(Boolean.TRUE);
            assertEquals("replyExchange", invocation.getArguments()[0]);
            assertEquals("replyHere", invocation.getArguments()[1]);
            BasicProperties respProps = (BasicProperties) invocation.getArguments()[2];
            assertEquals(correlationId, respProps.getCorrelationId());
            assertEquals(CONTENT_TYPE, respProps.getContentType());
            assertEquals(ENCODING, respProps.getContentEncoding());
            assertEquals("CBA", new String((byte[]) invocation.getArguments()[3]));
            return null;
        }
    }).when(channel).basicPublish(anyString(), anyString(), any(), any());

    responder.handleDeliveryInternal("consumerTag", env, props, "ABC".getBytes()).get(1, TimeUnit.SECONDS);

    verify(channel).basicPublish(anyString(), anyString(), any(), any());
    verifyNoMoreInteractions(channel);
    assertEquals(2, invocations.size());
}

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From source file:io.ventu.rpc.amqp.AmqpResponderImplTest.java

License:MIT License

@Test
public void handleDeliveryInternal_onPropagatedThrowable_apiErrorPublished()
        throws TimeoutException, IOException, EncodingException, ExecutionException, InterruptedException {
    String routingKeyPattern = "routingKeyPattern";
    String correlationId = "123456789";

    Channel channel = mock(Channel.class);
    ChannelProvider provider = mock(ChannelProvider.class);
    doReturn("replyExchange").when(provider).rpcExchange();
    doReturn(channel).when(provider).provide(anyString(), any());

    Map<String, Object> headers = Maps.newHashMap();
    headers.put("apikey", "234435345345");

    final List<Boolean> invocations = Lists.newArrayList();
    final CompletableFuture<byte[]> promise = new CompletableFuture<>();

    AmqpResponderImpl responder = new AmqpResponderImpl(provider, routingKeyPattern) {
        @Override// w ww  .j a va2  s  .  c o m
        <RQ, RS> CompletableFuture<byte[]> handleDelivery(String routingKey, Map<String, Object> actualHeaders,
                byte[] payload) {
            invocations.add(Boolean.TRUE);
            promise.completeExceptionally(new IndexOutOfBoundsException("boom"));
            return promise;
        }
    };

    Envelope env = new Envelope(1L, false, "incomingEexchange", Req.class.getName());
    BasicProperties props = new Builder().correlationId(correlationId).replyTo("replyHere").headers(headers)
            .build();

    doAnswer(new Answer() {
        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            invocations.add(Boolean.TRUE);
            assertEquals("replyExchange", invocation.getArguments()[0]);
            assertEquals("replyHere", invocation.getArguments()[1]);
            BasicProperties respProps = (BasicProperties) invocation.getArguments()[2];
            assertEquals(correlationId, respProps.getCorrelationId());
            assertEquals(CONTENT_TYPE, respProps.getContentType());
            assertEquals(ENCODING, respProps.getContentEncoding());

            byte[] data = (byte[]) invocation.getArguments()[3];
            Map<Object, Object> payload = new DefaultSerializer().decode(data, Map.class);
            assertEquals("Unhandled internal error: boom", payload.get("error"));
            return null;
        }
    }).when(channel).basicPublish(anyString(), anyString(), any(), any());

    responder.handleDeliveryInternal("consumerTag", env, props, "ABC".getBytes()).get(1, TimeUnit.SECONDS);

    verify(channel).basicPublish(anyString(), anyString(), any(), any());
    verifyNoMoreInteractions(channel);
    assertEquals(2, invocations.size());
}

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