Example usage for com.rabbitmq.client Connection createChannel

List of usage examples for com.rabbitmq.client Connection createChannel

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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.opennaas.extensions.genericnetwork.capability.nclprovisioner.components.NetworkObservationsPusher.java

License:Apache License

private void sendStatistics(String topicName, String csvMessage)
        throws KeyManagementException, NoSuchAlgorithmException, URISyntaxException, IOException {

    Connection conn = null;
    Channel channel = null;/*  ww  w. j a  v a2s.  c o  m*/

    try {

        log.debug("Establishing RabbitMQ connection with sla manager with URI: " + slaManagerUri);

        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(slaManagerUri.getHost());

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

        channel.exchangeDeclare(topicName, "direct");

        log.debug("Publishing message in RabbitMQ channel.");

        channel.basicPublish(topicName, RABBIT_MQ_ROUTING_KEY,
                new AMQP.BasicProperties.Builder().contentType(OBSERVATIONS_CONTENT_TYPE).build(),
                csvMessage.getBytes());

        log.debug("Message successfully sent to SLA manager.");

    } finally {
        if (channel != null && channel.isOpen())
            channel.close();
        if (conn != null && conn.isOpen())
            conn.close();

        log.debug("Connection to RabbitMQ server closed.");

    }

}

From source file:org.pushtrigger.mule.agent.CreateQueueAgent.java

License:Apache License

@Override
public void start() throws MuleException {
    System.out.println("Create Queue Agent is running...");

    Connection connection = null;
    Channel channel = null;// w  w w . ja va2  s .  co m
    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        connection = factory.newConnection();
        channel = connection.createChannel();

        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        String message = "Hello World! I am creating a queue...";

        Map<String, Object> props = new HashMap<String, Object>();
        props.put("path", "queue");
        props.put("branch", "create");

        AMQP.BasicProperties.Builder bob = new AMQP.BasicProperties.Builder();
        AMQP.BasicProperties basicProps = bob.headers(props).build();

        channel.basicPublish("", QUEUE_NAME, basicProps, message.getBytes());
        System.out.println("Agent has created the queue...");
    } catch (IOException e) {
        System.out.println("Something wrong " + e);
    } finally {
        try {
            if (channel != null)
                channel.close();
        } catch (IOException e) {
        }
        try {
            if (connection != null)
                connection.close();
        } catch (IOException e) {
        }
    }
}

From source file:org.s23m.cell.repository.client.connector.RepositoryClientConnector.java

License:Mozilla Public License

private void initClient() {
    final ConnectionFactory cfconn = new ConnectionFactory();
    cfconn.setHost(ConfigValues.getString("RepositoryClientServer.HOST_NAME"));
    cfconn.setPort(Integer.parseInt(ConfigValues.getString("RepositoryClientServer.PORT")));
    cfconn.setVirtualHost(ConfigValues.getString("RepositoryClientServer.VHOST_NAME"));
    cfconn.setUsername(ConfigValues.getString("RepositoryClientServer.USER_NAME"));
    cfconn.setPassword(ConfigValues.getString("RepositoryClientServer.PW"));
    Connection conn;
    try {//from  w  w w . java 2  s.  co  m
        conn = cfconn.newConnection();
        final Channel ch = conn.createChannel();
        clientService = new RpcClient(ch, "", ConfigValues.getString("RepositoryClientServer.QUEUE"));
    } catch (final IOException ex) {
        throw new IllegalStateException("Client set up failed", ex);
    }
}

From source file:org.s23m.cell.repository.client.server.RepositoryClientServer.java

License:Mozilla Public License

private void setupConnection() throws IOException {
    final ConnectionFactory connFactory = new ConnectionFactory();
    connFactory.setHost(LOCALHOST);/*from  w  w  w  .j a v a  2s  .  c  om*/
    connFactory.setPort(PORT);
    connFactory.setVirtualHost(ConfigValues.getString("RepositoryClientServer.VHOST_NAME"));
    connFactory.setUsername(ConfigValues.getString("RepositoryClientServer.USER_NAME"));
    connFactory.setPassword(ConfigValues.getString("RepositoryClientServer.PW"));
    final Connection conn = connFactory.newConnection();
    ch = conn.createChannel();
    ch.queueDeclare(QUEUE_NAME, false, false, false, null);
}

From source file:org.sdw.scheduler.PeriodicUpdater.java

License:Apache License

/**
 * Pushes messages to the shared queue on execution of triggers
 * @param JobExecutionContext Job execution context
 * @throws JobExecutionException /*from w w  w. j  av  a2  s .c  om*/
 */
@Override
public void execute(JobExecutionContext jobExecutionContext) {
    try {
        Connection connection = PeriodicScheduler.factory.newConnection();
        Channel channel = connection.createChannel();
        String queueName = "work-queue-1";
        Map<String, Object> params = new HashMap<>();
        params.put("x-ha-policy", "all");
        channel.queueDeclare(queueName, true, false, false, params);
        String mesg = "Sent at: " + System.currentTimeMillis();
        byte[] body = mesg.getBytes("UTF-8");
        channel.basicPublish("", queueName, MessageProperties.PERSISTENT_TEXT_PLAIN, body);
        LOG.info("Message sent: " + mesg);
        connection.close();
    } catch (Exception ex) {
        LOG.error(ex.getMessage(), ex);
    }
}

From source file:org.sdw.scheduler.QueueProcessor.java

License:Apache License

/**
 * Implementation of the Runnable interface's run method
 * Polls for messages in the shared queue and logs the results on arrival of message
 *///from   ww  w .  j a  v  a  2s  .c o  m
@Override
public void run() {
    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setUri(System.getenv("CLOUDAMQP_URL"));
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        String queueName = "work-queue-1";
        Map<String, Object> params = new HashMap<>();
        params.put("x-ha-policy", "all");
        channel.queueDeclare(queueName, true, false, false, params);
        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(queueName, false, consumer);

        while (true) {
            QueueingConsumer.Delivery delivery = consumer.nextDelivery();
            if (delivery != null) {
                String msg = new String(delivery.getBody(), "UTF-8");
                LOG.info("Message Received: " + msg);
                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
        }
    } catch (IOException | KeyManagementException | NoSuchAlgorithmException | URISyntaxException
            | ShutdownSignalException | ConsumerCancelledException | InterruptedException ex) {
        LOG.error(ex.getMessage(), ex);
    }
}

From source file:org.springframework.amqp.rabbit.connection.CachingConnectionFactoryTests.java

License:Apache License

@Test
public void testWithConnectionFactoryDefaults() throws IOException {
    com.rabbitmq.client.ConnectionFactory mockConnectionFactory = mock(
            com.rabbitmq.client.ConnectionFactory.class);
    com.rabbitmq.client.Connection mockConnection = mock(com.rabbitmq.client.Connection.class);
    Channel mockChannel = mock(Channel.class);

    when(mockConnectionFactory.newConnection((ExecutorService) null)).thenReturn(mockConnection);
    when(mockConnection.createChannel()).thenReturn(mockChannel);
    when(mockChannel.isOpen()).thenReturn(true);
    when(mockConnection.isOpen()).thenReturn(true);

    CachingConnectionFactory ccf = new CachingConnectionFactory(mockConnectionFactory);
    Connection con = ccf.createConnection();

    Channel channel = con.createChannel(false);
    channel.close(); // should be ignored, and placed into channel cache.
    con.close(); // should be ignored

    Connection con2 = ccf.createConnection();
    /*/*from www .ja  v a 2s  . c o m*/
     * will retrieve same channel object that was just put into channel cache
     */
    Channel channel2 = con2.createChannel(false);
    channel2.close(); // should be ignored
    con2.close(); // should be ignored

    assertSame(con, con2);
    assertSame(channel, channel2);
    verify(mockConnection, never()).close();
    verify(mockChannel, never()).close();

}

From source file:org.springframework.amqp.rabbit.connection.CachingConnectionFactoryTests.java

License:Apache License

@Test
public void testWithConnectionFactoryCacheSize() throws IOException {
    com.rabbitmq.client.ConnectionFactory mockConnectionFactory = mock(
            com.rabbitmq.client.ConnectionFactory.class);
    com.rabbitmq.client.Connection mockConnection = mock(com.rabbitmq.client.Connection.class);
    Channel mockChannel1 = mock(Channel.class);
    Channel mockChannel2 = mock(Channel.class);

    when(mockConnectionFactory.newConnection((ExecutorService) null)).thenReturn(mockConnection);
    when(mockConnection.isOpen()).thenReturn(true);
    when(mockConnection.createChannel()).thenReturn(mockChannel1).thenReturn(mockChannel2);

    when(mockChannel1.basicGet("foo", false)).thenReturn(new GetResponse(null, null, null, 1));
    when(mockChannel2.basicGet("bar", false)).thenReturn(new GetResponse(null, null, null, 1));
    when(mockChannel1.isOpen()).thenReturn(true);
    when(mockChannel2.isOpen()).thenReturn(true);

    CachingConnectionFactory ccf = new CachingConnectionFactory(mockConnectionFactory);
    ccf.setChannelCacheSize(2);// w  w  w .j  ava  2s  .  c o  m

    Connection con = ccf.createConnection();

    Channel channel1 = con.createChannel(false);
    Channel channel2 = con.createChannel(false);

    channel1.basicGet("foo", true);
    channel2.basicGet("bar", true);

    channel1.close(); // should be ignored, and add last into channel cache.
    channel2.close(); // should be ignored, and add last into channel cache.

    Channel ch1 = con.createChannel(false); // remove first entry in cache
    // (channel1)
    Channel ch2 = con.createChannel(false); // remove first entry in cache
    // (channel2)

    assertNotSame(ch1, ch2);
    assertSame(ch1, channel1);
    assertSame(ch2, channel2);

    ch1.close();
    ch2.close();

    verify(mockConnection, times(2)).createChannel();

    con.close(); // should be ignored

    verify(mockConnection, never()).close();
    verify(mockChannel1, never()).close();
    verify(mockChannel2, never()).close();

}

From source file:org.springframework.amqp.rabbit.connection.CachingConnectionFactoryTests.java

License:Apache License

@Test
public void testCacheSizeExceeded() throws IOException {
    com.rabbitmq.client.ConnectionFactory mockConnectionFactory = mock(
            com.rabbitmq.client.ConnectionFactory.class);
    com.rabbitmq.client.Connection mockConnection = mock(com.rabbitmq.client.Connection.class);
    Channel mockChannel1 = mock(Channel.class);
    Channel mockChannel2 = mock(Channel.class);
    Channel mockChannel3 = mock(Channel.class);

    when(mockConnectionFactory.newConnection((ExecutorService) null)).thenReturn(mockConnection);
    when(mockConnection.createChannel()).thenReturn(mockChannel1).thenReturn(mockChannel2)
            .thenReturn(mockChannel3);//from  w  w  w . j a  v a 2s  . c om
    when(mockConnection.isOpen()).thenReturn(true);

    // Called during physical close
    when(mockChannel1.isOpen()).thenReturn(true);
    when(mockChannel2.isOpen()).thenReturn(true);
    when(mockChannel3.isOpen()).thenReturn(true);

    CachingConnectionFactory ccf = new CachingConnectionFactory(mockConnectionFactory);
    ccf.setChannelCacheSize(1);

    Connection con = ccf.createConnection();

    Channel channel1 = con.createChannel(false);
    // cache size is 1, but the other connection is not released yet so this
    // creates a new one
    Channel channel2 = con.createChannel(false);
    assertNotSame(channel1, channel2);

    // should be ignored, and added last into channel cache.
    channel1.close();
    // should be physically closed
    channel2.close();

    // remove first entry in cache (channel1)
    Channel ch1 = con.createChannel(false);
    // create a new channel
    Channel ch2 = con.createChannel(false);

    assertNotSame(ch1, ch2);
    assertSame(ch1, channel1);
    assertNotSame(ch2, channel2);

    ch1.close();
    ch2.close();

    verify(mockConnection, times(3)).createChannel();

    con.close(); // should be ignored

    verify(mockConnection, never()).close();
    verify(mockChannel1, never()).close();
    verify(mockChannel2, atLeastOnce()).close();
    verify(mockChannel3, atLeastOnce()).close();

}

From source file:org.springframework.amqp.rabbit.connection.CachingConnectionFactoryTests.java

License:Apache License

@Test
public void testCacheSizeExceededAfterClose() throws IOException {
    com.rabbitmq.client.ConnectionFactory mockConnectionFactory = mock(
            com.rabbitmq.client.ConnectionFactory.class);
    com.rabbitmq.client.Connection mockConnection = mock(com.rabbitmq.client.Connection.class);
    Channel mockChannel1 = mock(Channel.class);
    Channel mockChannel2 = mock(Channel.class);

    when(mockConnectionFactory.newConnection((ExecutorService) null)).thenReturn(mockConnection);
    when(mockConnection.createChannel()).thenReturn(mockChannel1).thenReturn(mockChannel2);
    when(mockConnection.isOpen()).thenReturn(true);

    // Called during physical close
    when(mockChannel1.isOpen()).thenReturn(true);
    when(mockChannel2.isOpen()).thenReturn(true);

    CachingConnectionFactory ccf = new CachingConnectionFactory(mockConnectionFactory);
    ccf.setChannelCacheSize(1);//ww  w .  jav  a2s.  co m

    Connection con = ccf.createConnection();

    Channel channel1 = con.createChannel(false);
    channel1.close(); // should be ignored, and add last into channel cache.
    Channel channel2 = con.createChannel(false);
    channel2.close(); // should be ignored, and add last into channel cache.
    assertSame(channel1, channel2);

    Channel ch1 = con.createChannel(false); // remove first entry in cache
    // (channel1)
    Channel ch2 = con.createChannel(false); // create new channel

    assertNotSame(ch1, ch2);
    assertSame(ch1, channel1);
    assertNotSame(ch2, channel2);

    ch1.close();
    ch2.close();

    verify(mockConnection, times(2)).createChannel();

    con.close(); // should be ignored

    verify(mockConnection, never()).close();
    verify(mockChannel1, never()).close();
    verify(mockChannel2, atLeastOnce()).close();

}