Examples of backtype.storm.contrib.jms.bolt.JmsBolt

backtype.storm.contrib.jms.bolt.JmsBolt

A JmsBolt receives backtype.storm.tuple.Tuple objects from a Storm topology and publishes JMS Messages to a destination (topic or queue).

To use a JmsBolt in a topology, the following must be supplied:

A JmsProvider implementation.
A JmsMessageProducer implementation.

The JmsProvider provides the JMS javax.jms.ConnectionFactory and javax.jms.Destination objects requied to publish JMS messages.

The JmsBolt uses a JmsMessageProducer to translate backtype.storm.tuple.Tuple objects into javax.jms.Message objects for publishing.

Both JmsProvider and JmsMessageProducer must be set, or the bolt will fail upon deployment to a cluster.

The JmsBolt is typically an endpoint in a topology -- in other words it does not emit any tuples. @author P. Taylor Goetz

    // messages.
    builder.setBolt(FINAL_BOLT, new GenericBolt("FINAL_BOLT", true, true), 3).shuffleGrouping(
        INTERMEDIATE_BOLT);
    
    // bolt that subscribes to the intermediate bolt, and publishes to a JMS Topic    
    JmsBolt jmsBolt = new JmsBolt();
    jmsBolt.setJmsProvider(jmsTopicProvider);
    
    // anonymous message producer just calls toString() on the tuple to create a jms message
    jmsBolt.setJmsMessageProducer(new JmsMessageProducer() {
      @Override
      public Message toMessage(Session session, Tuple input) throws JMSException{
        System.out.println("Sending JMS Message:" + input.toString());
        TextMessage tm = session.createTextMessage(input.toString());
        return tm;

Examples of backtype.storm.contrib.jms.bolt.JmsBolt

Related Classes of backtype.storm.contrib.jms.bolt.JmsBolt