org.apache.storm.cassandra.bolt

Class BaseCassandraBolt<T>

java.lang.Object

org.apache.storm.topology.base.BaseComponent

org.apache.storm.topology.base.BaseRichBolt

org.apache.storm.topology.base.BaseTickTupleAwareRichBolt

org.apache.storm.cassandra.bolt.BaseCassandraBolt<T>

All Implemented Interfaces:

Serializable, IBolt, IComponent, IRichBolt

Direct Known Subclasses:

BatchCassandraWriterBolt, CassandraWriterBolt

public abstract class BaseCassandraBolt<T>
extends BaseTickTupleAwareRichBolt

A base cassandra bolt.

Default BaseTickTupleAwareRichBolt

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected CassandraConf	cassandraConfConfig
protected SimpleClient	client
protected SimpleClientProvider	clientProvider
protected OutputCollector	outputCollector
protected com.datastax.driver.core.Session	session
protected Map	stormConfig

Constructor Summary

Constructors

Constructor and Description
BaseCassandraBolt(CQLStatementTupleMapper tupleMapper) Creates a new CassandraWriterBolt instance.
BaseCassandraBolt(CQLStatementTupleMapper mapper, SimpleClientProvider clientProvider) Creates a new CassandraWriterBolt instance.

Method Summary

Modifier and Type	Method and Description
void	cleanup()
void	declareOutputFields(OutputFieldsDeclarer declarer)
void	execute(Tuple input)
protected AsyncExecutor<T>	getAsyncExecutor()
protected abstract AsyncResultHandler<T>	getAsyncHandler()
Map<String,Object>	getComponentConfiguration()
protected CQLStatementTupleMapper	getMapper()
protected ExecutionResultHandler	getResultHandler()
void	prepare(Map stormConfig, TopologyContext topologyContext, OutputCollector outputCollector)
BaseCassandraBolt	withOutputFields(Fields fields)
BaseCassandraBolt	withResultHandler(ExecutionResultHandler resultHandler)
BaseCassandraBolt	withStreamOutputFields(String stream, Fields fields)

Methods inherited from class org.apache.storm.topology.base.BaseTickTupleAwareRichBolt

onTickTuple, process

Methods inherited from class java.lang.Object

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

Field Detail

outputCollector

protected OutputCollector outputCollector

clientProvider

protected SimpleClientProvider clientProvider

client

protected SimpleClient client

session

protected com.datastax.driver.core.Session session

stormConfig

protected Map stormConfig

cassandraConfConfig

protected CassandraConf cassandraConfConfig

Constructor Detail

BaseCassandraBolt

public BaseCassandraBolt(CQLStatementTupleMapper mapper,
                         SimpleClientProvider clientProvider)

Creates a new CassandraWriterBolt instance.

Parameters:

mapper -

BaseCassandraBolt

public BaseCassandraBolt(CQLStatementTupleMapper tupleMapper)

Creates a new CassandraWriterBolt instance.

Parameters:

tupleMapper -

Method Detail

prepare

public void prepare(Map stormConfig,
                    TopologyContext topologyContext,
                    OutputCollector outputCollector)

withResultHandler

public BaseCassandraBolt withResultHandler(ExecutionResultHandler resultHandler)

withOutputFields

public BaseCassandraBolt withOutputFields(Fields fields)

withStreamOutputFields

public BaseCassandraBolt withStreamOutputFields(String stream,
                                                Fields fields)

getResultHandler

protected ExecutionResultHandler getResultHandler()

getMapper

protected CQLStatementTupleMapper getMapper()

getAsyncHandler

protected abstract AsyncResultHandler<T> getAsyncHandler()

getAsyncExecutor

protected AsyncExecutor<T> getAsyncExecutor()

execute

public final void execute(Tuple input)

Specified by:

execute in interface IBolt

Overrides:

execute in class BaseTickTupleAwareRichBolt

Parameters:

input - the tuple to process.

declareOutputFields

public void declareOutputFields(OutputFieldsDeclarer declarer)

getComponentConfiguration

public Map<String,Object> getComponentConfiguration()

Specified by:

getComponentConfiguration in interface IComponent

Overrides:

getComponentConfiguration in class BaseComponent

cleanup

public void cleanup()

Specified by:

cleanup in interface IBolt

Overrides:

cleanup in class BaseRichBolt