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.wso2.carbon.event.adapter.rabbitmq.internal.util.RabbitMQEventAdapterUtils.java

License:Open Source License

/**
 * @param connection      Connection to the RabbitMQ
 * @param exchangeName    Name of the exchange
 * @param exchangeType    Type of Exchange
 * @param exchangeDurable Whether durable or not
 * @throws IOException//from w  w  w . j  a  v  a2 s.c o  m
 */
public static void declareExchange(Connection connection, String exchangeName, String exchangeType,
        String exchangeDurable) throws IOException, TimeoutException {
    Boolean exchangeAvailable = false;
    Channel channel = connection.createChannel();
    try {
        // check availability of the named exchange.
        // The server will raise an IOException if the named exchange already exists.
        channel.exchangeDeclarePassive(exchangeName);
        exchangeAvailable = true;
    } catch (IOException e) {
        log.info("Exchange :" + exchangeName + " not found.Declaring exchange.");
    }
    if (!exchangeAvailable) {
        // Declare the named exchange if it does not exists.
        if (!channel.isOpen()) {
            channel = connection.createChannel();
            log.debug("Channel is not open. Creating a new channel.");
        }
        try {
            if (exchangeType != null && !exchangeType.equals("")) {
                if (exchangeDurable != null && !exchangeDurable.equals("")) {
                    channel.exchangeDeclare(exchangeName, exchangeType, Boolean.parseBoolean(exchangeDurable));
                } else {
                    channel.exchangeDeclare(exchangeName, exchangeType, true);
                }
            } else {
                channel.exchangeDeclare(exchangeName, RabbitMQInputEventAdapterConstants.DEFAULT_EXCHANGE_TYPE,
                        true);
            }
        } catch (IOException e) {
            handleException("Error occurred while declaring exchange.", e);
        }
    }
    channel.close();
}

---

From source file:org.wso2.carbon.event.adaptor.rabbitmq.input.RabbitMQInputEventAdaptorTypeTest.java

License:Apache License

@AfterClass
public static void afterClass() {
    try {//from  w w  w.  j a v a 2  s .c  o m
        ConnectionFactory factory = EventAdapterHelper.getConnectionFactory("localhost", 5672, "admin", "admin",
                "/");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        channel.queueDelete("wso2cep_test_input_queue");
    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

From source file:org.wso2.carbon.event.adaptor.rabbitmq.output.RabbitMQOutputEventAdaptorTypeTest.java

License:Apache License

@AfterClass
public static void afterClass() {
    try {/*ww w  . j  a v  a 2 s. c  o m*/
        ConnectionFactory factory = EventAdapterHelper.getConnectionFactory("localhost", 5672, "admin", "admin",
                "/");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        channel.queueDelete("wso2cep_test_output_queue");
    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

From source file:org.wso2.carbon.extension.analytics.receiver.rabbitmq.internal.util.RabbitMQUtils.java

License:Open Source License

public static boolean isQueueAvailable(Connection connection, String queueName) throws IOException {
    Channel channel = connection.createChannel();
    try {//www  .j  a  va  2 s.c  o m
        // check availability of the named queue
        // if an error is encountered, including if the queue does not exist and if the
        // queue is exclusively owned by another connection
        channel.queueDeclarePassive(queueName);
        return true;
    } catch (IOException e) {
        return false;
    }
}

---

From source file:org.wso2.carbon.extension.analytics.receiver.rabbitmq.internal.util.RabbitMQUtils.java

License:Open Source License

public static void declareExchange(Connection connection, String exchangeName, String exchangeType,
        String exchangeDurable) throws IOException {
    Boolean exchangeAvailable = false;
    Channel channel = connection.createChannel();
    try {//from w ww . j  av  a 2s .  co  m
        // check availability of the named exchange.
        // The server will raise an IOException
        // if the named exchange already exists.
        channel.exchangeDeclarePassive(exchangeName);
        exchangeAvailable = true;
    } catch (IOException e) {
        log.info("Exchange :" + exchangeName + " not found.Declaring exchange.");
    }

    if (!exchangeAvailable) {
        // Declare the named exchange if it does not exists.
        if (!channel.isOpen()) {
            channel = connection.createChannel();
            log.debug("Channel is not open. Creating a new channel.");
        }
        try {
            if (exchangeType != null && !exchangeType.equals("")) {
                if (exchangeDurable != null && !exchangeDurable.equals("")) {
                    channel.exchangeDeclare(exchangeName, exchangeType, Boolean.parseBoolean(exchangeDurable));
                } else {
                    channel.exchangeDeclare(exchangeName, exchangeType, true);
                }
            } else {
                channel.exchangeDeclare(exchangeName, "direct", true);
            }
        } catch (IOException e) {
            handleException("Error occurred while declaring exchange.", e);
        }
    }
    channel.close();
}

---

From source file:org.wso2.carbon.inbound.endpoint.protocol.rabbitmq.RabbitMQUtils.java

License:Open Source License

/**
 *
 * @param connection//from ww  w . j a  v  a2 s  . co m
 * @param queueName
 * @param isDurable
 * @param isExclusive
 * @param isAutoDelete
 * @throws IOException
 */
public static void declareQueue(Connection connection, String queueName, boolean isDurable, boolean isExclusive,
        boolean isAutoDelete) throws IOException {

    boolean queueAvailable = isQueueAvailable(connection, queueName);
    Channel channel = connection.createChannel();

    if (!queueAvailable) {
        if (log.isDebugEnabled()) {
            log.debug("Queue :" + queueName + " not found or already declared exclusive. Declaring the queue.");
        }
        // Declare the named queue if it does not exists.
        if (!channel.isOpen()) {
            channel = connection.createChannel();
            log.debug("Channel is not open. Creating a new channel.");
        }
        try {
            channel.queueDeclare(queueName, isDurable, isExclusive, isAutoDelete, null);
        } catch (IOException e) {
            handleException("Error while creating queue: " + queueName, e);
        }
    }
}

---

From source file:org.wso2.carbon.inbound.endpoint.protocol.rabbitmq.RabbitMQUtils.java

License:Open Source License

public static void declareQueue(Connection connection, String queueName, Hashtable<String, String> properties)
        throws IOException {
    Boolean queueAvailable = isQueueAvailable(connection, queueName);
    Channel channel = connection.createChannel();

    if (!queueAvailable) {
        // Declare the named queue if it does not exists.
        if (!channel.isOpen()) {
            channel = connection.createChannel();
            log.debug("Channel is not open. Creating a new channel.");
        }/*from  www  . j a v a 2 s.c om*/
        try {
            channel.queueDeclare(queueName, isDurableQueue(properties), isExclusiveQueue(properties),
                    isAutoDeleteQueue(properties), null);

        } catch (IOException e) {
            handleException("Error while creating queue: " + queueName, e);
        }
    }
}

---

From source file:org.wso2.carbon.inbound.endpoint.protocol.rabbitmq.RabbitMQUtils.java

License:Open Source License

public static void declareExchange(Connection connection, String exchangeName,
        Hashtable<String, String> properties) throws IOException {
    Boolean exchangeAvailable = false;
    Channel channel = connection.createChannel();
    String exchangeType = properties.get(RabbitMQConstants.EXCHANGE_TYPE);
    String durable = properties.get(RabbitMQConstants.EXCHANGE_DURABLE);
    try {//w w  w .  j a  v a2 s.  c  om
        // check availability of the named exchange.
        // The server will raise an IOException
        // if the named exchange already exists.
        channel.exchangeDeclarePassive(exchangeName);
        exchangeAvailable = true;
    } catch (IOException e) {
        log.info("Exchange :" + exchangeName + " not found.Declaring exchange.");
    }

    if (!exchangeAvailable) {
        // Declare the named exchange if it does not exists.
        if (!channel.isOpen()) {
            channel = connection.createChannel();
            log.debug("Channel is not open. Creating a new channel.");
        }
        try {
            if (exchangeType != null && !exchangeType.equals("")) {
                if (durable != null && !durable.equals("")) {
                    channel.exchangeDeclare(exchangeName, exchangeType, Boolean.parseBoolean(durable));
                } else {
                    channel.exchangeDeclare(exchangeName, exchangeType, true);
                }
            } else {
                channel.exchangeDeclare(exchangeName, "direct", true);
            }
        } catch (IOException e) {
            handleException("Error occurred while declaring exchange.", e);
        }
    }
    try {
        channel.close();
    } catch (TimeoutException e) {
        log.error("Error occurred while closing connection.", e);
    }
}

---

From source file:org.wso2.siddhi.debs2017.input.rabbitmq.RabbitMQConsumer.java

License:Open Source License

/**
 *  Consumes the sample data//from w w w.ja  va  2 s  .  c  o  m
 *
 */
public void consume(String queue, String host, String host1, int port1, String host2, int port2, String host3,
        int port3, int executorSize) {
    TASK_QUEUE_NAME = queue;
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(host);
    final Connection connection;
    final Channel channel;
    final Consumer consumer;
    try {
        connection = factory.newConnection(EXECUTORS);
        channel = connection.createChannel();
        consumer = new EventDispatcher(channel, host1, port1, host2, port2, host3, port3, executorSize);
        boolean autoAck = true; // acknowledgment is covered below
        channel.basicConsume(TASK_QUEUE_NAME, autoAck, consumer);
    } catch (IOException e) {
        e.printStackTrace();
    } catch (TimeoutException e) {
        e.printStackTrace();
    }
}

---

From source file:org.wso2.siddhi.debs2017.input.rabbitmq.RabbitMQSampleDataPublisher.java

License:Open Source License

public static void start(String[] argv) {

    try {//  w  w w  .j a  v a  2 s  . c  o m
        if (argv.length > 0) {
            TASK_QUEUE_NAME = argv[0];
        }
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null);
        String data = "";
        BufferedReader reader = new BufferedReader(new FileReader("frmattedData_63.nt"));//molding_machine_100M.nt rdfSample.txt //Machine_59 //frmattedData.txt
        // read file line by line
        String line;
        Scanner scanner;
        int count = 0;
        while ((line = reader.readLine()) != null) {
            scanner = new Scanner(line);
            while (scanner.hasNext()) {
                String dataInLine = scanner.next();
                if (dataInLine.contains("----")) {
                    if (data.length() > 100) {
                        for (int i = 0; i < 5; i++) {
                            count++;
                            System.out.println(count);
                            String data1 = data.replace("Machine_59", "Machine_" + i).replace("_59_",
                                    "_" + i + "_");
                            channel.basicPublish("", TASK_QUEUE_NAME, MessageProperties.PERSISTENT_TEXT_PLAIN,
                                    data1.getBytes());
                        }
                    }
                    data = "";
                } else {
                    data += " " + dataInLine;
                    if (dataInLine.contains(".") && !dataInLine.contains("<")) {
                        data += "\n";
                    }
                }
            }
        }

        channel.close();
        connection.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

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