storm.kafka.bolt
Class KafkaBolt<K,V>

java.lang.Object
  backtype.storm.topology.base.BaseComponent
      backtype.storm.topology.base.BaseRichBolt
          storm.kafka.bolt.KafkaBolt<K,V>

All Implemented Interfaces:

backtype.storm.task.IBolt, backtype.storm.topology.IComponent, backtype.storm.topology.IRichBolt, Serializable

public class KafkaBolt<K,V>
extends backtype.storm.topology.base.BaseRichBolt

Bolt implementation that can send Tuple data to Kafka

It expects the producer configuration and topic in storm config under

'kafka.broker.properties' and 'topic'

respectively.

See Also:

Serialized Form

Field Summary

static String	BOLT_KEY
static String	BOLT_MESSAGE
static String	KAFKA_BROKER_PROPERTIES
static String	TOPIC

Constructor Summary

KafkaBolt()

Method Summary

void	declareOutputFields(backtype.storm.topology.OutputFieldsDeclarer declarer)
void	execute(backtype.storm.tuple.Tuple input)
void	prepare(Map stormConf, backtype.storm.task.TopologyContext context, backtype.storm.task.OutputCollector collector)

Methods inherited from class backtype.storm.topology.base.BaseRichBolt

cleanup

Methods inherited from class backtype.storm.topology.base.BaseComponent

getComponentConfiguration

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface backtype.storm.topology.IComponent

getComponentConfiguration

Field Detail

TOPIC

public static final String TOPIC

See Also:

Constant Field Values

KAFKA_BROKER_PROPERTIES

public static final String KAFKA_BROKER_PROPERTIES

See Also:

Constant Field Values

BOLT_KEY

public static final String BOLT_KEY

See Also:

Constant Field Values

BOLT_MESSAGE

public static final String BOLT_MESSAGE

See Also:

Constant Field Values

Constructor Detail

KafkaBolt

public KafkaBolt()

Method Detail

prepare

public void prepare(Map stormConf,
                    backtype.storm.task.TopologyContext context,
                    backtype.storm.task.OutputCollector collector)

execute

public void execute(backtype.storm.tuple.Tuple input)

declareOutputFields

public void declareOutputFields(backtype.storm.topology.OutputFieldsDeclarer declarer)