Example usage for com.rabbitmq.client Connection createChannel

Introduction

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

Prototype

Channel createChannel() throws IOException;

Source Link

Document

Create a new channel, using an internally allocated channel number.

Usage

From source file:org.apache.airavata.wsmg.client.amqp.rabbitmq.AMQPTopicReceiverImpl.java

License:Apache License

public void Subscribe(AMQPRoutingKey topic) throws AMQPException {
    if (callback != null) {
        try {/*from  w  ww . ja  v  a2  s .c om*/
            Connection connection = connectionFactory.newConnection();

            Channel channel = connection.createChannel();
            channel.exchangeDeclare(AMQPUtil.EXCHANGE_NAME_TOPIC, AMQPUtil.EXCHANGE_TYPE_TOPIC);

            String queueName = channel.queueDeclare().getQueue();
            channel.queueBind(queueName, AMQPUtil.EXCHANGE_NAME_TOPIC, topic.getNativeKey());

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

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

                callback.onMessage(message);
            }
        } catch (Exception e) {
            throw new AMQPException(e);
        }
    }
}

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From source file:org.apache.airavata.wsmg.client.amqp.rabbitmq.AMQPTopicSenderImpl.java

License:Apache License

public void Send(OMElement message) throws AMQPException {
    try {//from ww  w .j  a v  a 2  s  .co m
        if (isRoutable(message)) {
            Connection connection = connectionFactory.newConnection();
            Channel channel = connection.createChannel();
            channel.exchangeDeclare(AMQPUtil.EXCHANGE_NAME_TOPIC, AMQPUtil.EXCHANGE_TYPE_TOPIC);

            List<String> routingKeys = new ArrayList<String>();
            getRoutingKeys(message, routingKeys);

            for (String routingKey : routingKeys) {
                channel.basicPublish(AMQPUtil.EXCHANGE_NAME_TOPIC, routingKey, null,
                        message.toString().getBytes());
            }

            channel.close();
            connection.close();
        }
    } catch (IOException e) {
        throw new AMQPException(e);
    }
}

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From source file:org.apache.axis2.transport.amqp.out.AMQPSender.java

License:Apache License

/**
 * Performs the actual sending of the AMQP message
 *//*  w ww .  j a va2  s .  c o  m*/
@Override
public void sendMessage(MessageContext msgCtx, String targetAddress, OutTransportInfo outTransportInfo)
        throws AxisFault {

    AMQPConnectionFactory conFac = null;
    AMQPTransportInfo amqpOut = null;
    AMQPMessageSender messageSender = null;
    Connection con = null;
    Channel chan = null;

    if (targetAddress != null) {
        amqpOut = new AMQPTransportInfo(targetAddress);
        // do we have a definition for a connection factory to use for this
        // address?
        conFac = getAMQPConnectionFactory(amqpOut);

        try {
            if (conFac != null) {

                con = conFac.getConnection();
                chan = con.createChannel();
                messageSender = new AMQPMessageSender(chan, DestinationFactory.parseAddress(targetAddress));

            } else {
                messageSender = amqpOut.createAMQPSender();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    } else if (outTransportInfo != null && outTransportInfo instanceof AMQPTransportInfo) {

        amqpOut = (AMQPTransportInfo) outTransportInfo;
        try {
            messageSender = amqpOut.createAMQPSender();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    // The message property to be used to send the content type is
    // determined by the out transport info, i.e. either from the EPR if we are sending a
    // request, or, if we are sending a response, from the configuration of the
    // service that received the request). The property name can be overridden by a
    // message context property.
    String contentTypeProperty = (String) msgCtx.getProperty(AMQPConstants.CONTENT_TYPE_PROPERTY_PARAM);
    if (contentTypeProperty == null) {
        contentTypeProperty = amqpOut.getContentTypeProperty();
    }

    try {
        sendOverAMQP(msgCtx, messageSender, contentTypeProperty, chan, amqpOut);
    } finally {
        try {
            chan.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

---

From source file:org.apache.axis2.transport.rabbitmq.RabbitMQSender.java

License:Open Source License

private void processResponse(RabbitMQConnectionFactory factory, MessageContext msgContext, String correlationID,
        String replyTo, Hashtable<String, String> eprProperties) throws IOException {

    Connection connection = factory.createConnection();

    if (!RabbitMQUtils.isQueueAvailable(connection, replyTo)) {
        log.info("Reply-to queue : " + replyTo + " not available, hence creating a new one");
        RabbitMQUtils.declareQueue(connection, replyTo, eprProperties);
    }//from  w w  w. j a  v  a 2  s  .  c  o  m

    Channel channel = connection.createChannel();
    QueueingConsumer consumer = new QueueingConsumer(channel);
    QueueingConsumer.Delivery delivery = null;
    RabbitMQMessage message = new RabbitMQMessage();
    boolean responseFound = false;

    int timeout = RabbitMQConstants.DEFAULT_REPLY_TO_TIMEOUT;
    String timeoutStr = eprProperties.get(RabbitMQConstants.REPLY_TO_TIMEOUT);
    if (!StringUtils.isEmpty(timeoutStr)) {
        try {
            timeout = Integer.parseInt(timeoutStr);
        } catch (NumberFormatException e) {
            log.warn(
                    "Number format error in reading replyto timeout value. Proceeding with default value (30000ms)",
                    e);
        }
    }

    //start consuming without acknowledging
    String consumerTag = channel.basicConsume(replyTo, false, consumer);

    try {
        while (!responseFound) {
            log.debug("Waiting for next delivery from reply to queue " + replyTo);
            delivery = consumer.nextDelivery(timeout);
            if (delivery != null) {
                if (delivery.getProperties().getCorrelationId().equals(correlationID)) {
                    responseFound = true;
                    log.debug(
                            "Found matching response with correlation ID : " + correlationID + ". Sending ack");
                    //acknowledge correct message
                    channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
                } else {
                    //not acknowledge wrong messages and re-queue
                    log.debug("Found messages with wrong correlation ID. Re-queueing and sending nack");
                    channel.basicNack(delivery.getEnvelope().getDeliveryTag(), false, true);
                }
            }
        }
    } catch (ShutdownSignalException e) {
        log.error("Error receiving message from RabbitMQ broker " + e.getLocalizedMessage());
    } catch (InterruptedException e) {
        log.error("Error receiving message from RabbitMQ broker " + e.getLocalizedMessage());
    } catch (ConsumerCancelledException e) {
        log.error("Error receiving message from RabbitMQ broker" + e.getLocalizedMessage());
    } finally {
        if (channel != null || channel.isOpen()) {
            //stop consuming
            channel.basicCancel(consumerTag);
        }
    }

    if (delivery != null) {
        log.debug("Processing response from reply-to queue");
        AMQP.BasicProperties properties = delivery.getProperties();
        Map<String, Object> headers = properties.getHeaders();
        message.setBody(delivery.getBody());
        message.setDeliveryTag(delivery.getEnvelope().getDeliveryTag());
        message.setReplyTo(properties.getReplyTo());
        message.setMessageId(properties.getMessageId());

        //get content type from message
        String contentType = properties.getContentType();
        if (contentType == null) {
            //if not get content type from transport parameter
            contentType = eprProperties.get(RabbitMQConstants.REPLY_TO_CONTENT_TYPE);
            if (contentType == null) {
                //if none is given, set to default content type
                log.warn("Setting default content type " + RabbitMQConstants.DEFAULT_CONTENT_TYPE);
                contentType = RabbitMQConstants.DEFAULT_CONTENT_TYPE;
            }
        }
        message.setContentType(contentType);
        message.setContentEncoding(properties.getContentEncoding());
        message.setCorrelationId(properties.getCorrelationId());

        if (headers != null) {
            message.setHeaders(headers);
            if (headers.get(RabbitMQConstants.SOAP_ACTION) != null) {
                message.setSoapAction(headers.get(RabbitMQConstants.SOAP_ACTION).toString());
            }
        }

        MessageContext responseMsgCtx = createResponseMessageContext(msgContext);
        RabbitMQUtils.setSOAPEnvelope(message, responseMsgCtx, contentType);
        handleIncomingMessage(responseMsgCtx, RabbitMQUtils.getTransportHeaders(message),
                message.getSoapAction(), message.getContentType());
    }
}

---

From source file:org.apache.beam.sdk.io.rabbitmq.RabbitMqIOTest.java

License:Apache License

@Test
public void testReadQueue() throws Exception {
    final int maxNumRecords = 10;
    PCollection<RabbitMqMessage> raw = p.apply(RabbitMqIO.read().withUri("amqp://guest:guest@localhost:" + port)
            .withQueue("READ").withMaxNumRecords(maxNumRecords));
    PCollection<String> output = raw.apply(MapElements.into(TypeDescriptors.strings())
            .via((RabbitMqMessage message) -> new String(message.getBody(), StandardCharsets.UTF_8)));

    List<String> records = generateRecords(maxNumRecords).stream()
            .map(record -> new String(record, StandardCharsets.UTF_8)).collect(Collectors.toList());
    PAssert.that(output).containsInAnyOrder(records);

    ConnectionFactory connectionFactory = new ConnectionFactory();
    connectionFactory.setUri("amqp://guest:guest@localhost:" + port);
    Connection connection = null;
    Channel channel = null;//from  w  ww  .  j ava  2s  . com
    try {
        connection = connectionFactory.newConnection();
        channel = connection.createChannel();
        channel.queueDeclare("READ", false, false, false, null);
        for (String record : records) {
            channel.basicPublish("", "READ", null, record.getBytes(StandardCharsets.UTF_8));
        }

        p.run();
    } finally {
        if (channel != null) {
            channel.close();
        }
        if (connection != null) {
            connection.close();
        }
    }
}

---

From source file:org.apache.beam.sdk.io.rabbitmq.RabbitMqIOTest.java

License:Apache License

@Test(timeout = 60 * 1000)
public void testReadExchange() throws Exception {
    final int maxNumRecords = 10;
    PCollection<RabbitMqMessage> raw = p.apply(RabbitMqIO.read().withUri("amqp://guest:guest@localhost:" + port)
            .withExchange("READEXCHANGE", "fanout", "test").withMaxNumRecords(maxNumRecords));
    PCollection<String> output = raw.apply(MapElements.into(TypeDescriptors.strings())
            .via((RabbitMqMessage message) -> new String(message.getBody(), StandardCharsets.UTF_8)));

    List<String> records = generateRecords(maxNumRecords).stream()
            .map(record -> new String(record, StandardCharsets.UTF_8)).collect(Collectors.toList());
    PAssert.that(output).containsInAnyOrder(records);

    ConnectionFactory connectionFactory = new ConnectionFactory();
    connectionFactory.setUri("amqp://guest:guest@localhost:" + port);
    Connection connection = null;
    Channel channel = null;/*from w w  w  .  j  a va2s  . c  o m*/
    try {
        connection = connectionFactory.newConnection();
        channel = connection.createChannel();
        channel.exchangeDeclare("READEXCHANGE", "fanout");
        Channel finalChannel = channel;
        Thread publisher = new Thread(() -> {
            try {
                Thread.sleep(5000);
            } catch (Exception e) {
                LOG.error(e.getMessage(), e);
            }
            for (int i = 0; i < maxNumRecords; i++) {
                try {
                    finalChannel.basicPublish("READEXCHANGE", "test", null,
                            ("Test " + i).getBytes(StandardCharsets.UTF_8));
                } catch (Exception e) {
                    LOG.error(e.getMessage(), e);
                }
            }
        });
        publisher.start();
        p.run();
        publisher.join();
    } finally {
        if (channel != null) {
            channel.close();
        }
        if (connection != null) {
            connection.close();
        }
    }
}

---

From source file:org.apache.beam.sdk.io.rabbitmq.RabbitMqIOTest.java

License:Apache License

@Test
public void testWriteQueue() throws Exception {
    final int maxNumRecords = 1000;
    List<RabbitMqMessage> data = generateRecords(maxNumRecords).stream()
            .map(bytes -> new RabbitMqMessage(bytes)).collect(Collectors.toList());
    p.apply(Create.of(data))/*  w  w w  .j a v a2s  . c  o  m*/
            .apply(RabbitMqIO.write().withUri("amqp://guest:guest@localhost:" + port).withQueue("TEST"));

    final List<String> received = new ArrayList<>();
    ConnectionFactory connectionFactory = new ConnectionFactory();
    connectionFactory.setUri("amqp://guest:guest@localhost:" + port);
    Connection connection = null;
    Channel channel = null;
    try {
        connection = connectionFactory.newConnection();
        channel = connection.createChannel();
        channel.queueDeclare("TEST", true, false, false, null);
        Consumer consumer = new TestConsumer(channel, received);
        channel.basicConsume("TEST", true, consumer);

        p.run();

        while (received.size() < maxNumRecords) {
            Thread.sleep(500);
        }

        assertEquals(maxNumRecords, received.size());
        for (int i = 0; i < maxNumRecords; i++) {
            assertTrue(received.contains("Test " + i));
        }
    } finally {
        if (channel != null) {
            channel.close();
        }
        if (connection != null) {
            connection.close();
        }
    }
}

---

From source file:org.apache.beam.sdk.io.rabbitmq.RabbitMqIOTest.java

License:Apache License

@Test
public void testWriteExchange() throws Exception {
    final int maxNumRecords = 1000;
    List<RabbitMqMessage> data = generateRecords(maxNumRecords).stream()
            .map(bytes -> new RabbitMqMessage(bytes)).collect(Collectors.toList());
    p.apply(Create.of(data)).apply(//from   ww w . j  a va 2s.c  o m
            RabbitMqIO.write().withUri("amqp://guest:guest@localhost:" + port).withExchange("WRITE", "fanout"));

    final List<String> received = new ArrayList<>();
    ConnectionFactory connectionFactory = new ConnectionFactory();
    connectionFactory.setUri("amqp://guest:guest@localhost:" + port);
    Connection connection = null;
    Channel channel = null;
    try {
        connection = connectionFactory.newConnection();
        channel = connection.createChannel();
        channel.exchangeDeclare("WRITE", "fanout");
        String queueName = channel.queueDeclare().getQueue();
        channel.queueBind(queueName, "WRITE", "");
        Consumer consumer = new TestConsumer(channel, received);
        channel.basicConsume(queueName, true, consumer);

        p.run();

        while (received.size() < maxNumRecords) {
            Thread.sleep(500);
        }

        assertEquals(maxNumRecords, received.size());
        for (int i = 0; i < maxNumRecords; i++) {
            assertTrue(received.contains("Test " + i));
        }
    } finally {
        if (channel != null) {
            channel.close();
        }
        if (connection != null) {
            connection.close();
        }
    }
}

---

From source file:org.apache.camel.component.rabbitmq.RabbitMQConsumerIntTest.java

License:Apache License

@Test
public void sentMessageIsReceived() throws InterruptedException, IOException {

    to.expectedMessageCount(1);/*from w ww. java 2s .c o  m*/
    to.expectedHeaderReceived(RabbitMQConstants.REPLY_TO, "myReply");

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    factory.setPort(5672);
    factory.setUsername("cameltest");
    factory.setPassword("cameltest");
    factory.setVirtualHost("/");
    Connection conn = factory.newConnection();

    AMQP.BasicProperties.Builder properties = new AMQP.BasicProperties.Builder();
    properties.replyTo("myReply");

    Channel channel = conn.createChannel();
    channel.basicPublish(EXCHANGE, "", properties.build(), "hello world".getBytes());

    to.assertIsSatisfied();
}

---

From source file:org.apache.camel.component.rabbitmq.RabbitMQProducerIntTest.java

License:Apache License

@Test
public void producedMessageIsReceived() throws InterruptedException, IOException {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    factory.setPort(5672);//w w  w .  j  ava2  s  .  c  om
    factory.setUsername("cameltest");
    factory.setPassword("cameltest");
    factory.setVirtualHost("/");
    Connection conn = factory.newConnection();

    final List<Envelope> received = new ArrayList<Envelope>();

    Channel channel = conn.createChannel();
    channel.queueDeclare("sammyq", false, false, true, null);
    channel.queueBind("sammyq", EXCHANGE, "route1");
    channel.basicConsume("sammyq", true, new DefaultConsumer(channel) {
        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            received.add(envelope);
        }
    });

    template.sendBodyAndHeader("new message", RabbitMQConstants.EXCHANGE_NAME, "ex1");
    Thread.sleep(500);
    assertEquals(1, received.size());
}

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