org.apache.streams.kafka

Class KafkaPersistReader

java.lang.Object

org.apache.streams.kafka.KafkaPersistReader

All Implemented Interfaces:

Serializable, StreamsOperation, StreamsPersistReader, StreamsProvider

public class KafkaPersistReader
extends Object
implements StreamsPersistReader, Serializable

KafkaPersistReader reads documents from kafka.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
List<kafka.consumer.KafkaStream<String,String>>	inStreams
protected Queue<StreamsDatum>	persistQueue
static String	STREAMS_ID

Constructor Summary

Constructors

Constructor and Description
KafkaPersistReader() KafkaPersistReader constructor - resolves KafkaConfiguration from JVM 'kafka'.
KafkaPersistReader(Queue<StreamsDatum> persistQueue) KafkaPersistReader constructor - uses supplied persistQueue.

Method Summary

Modifier and Type	Method and Description
void	cleanUp()
String	getId()
boolean	isRunning()
void	prepare(Object configurationObject)
StreamsResultSet	readAll()
StreamsResultSet	readCurrent()
StreamsResultSet	readNew(BigInteger bigInteger)
StreamsResultSet	readRange(org.joda.time.DateTime dateTime, org.joda.time.DateTime dateTime2)
void	setConfig(KafkaConfiguration config)
void	startStream()

Methods inherited from class java.lang.Object

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

Field Detail

STREAMS_ID

public static final String STREAMS_ID

See Also:

Constant Field Values

persistQueue

protected volatile Queue<StreamsDatum> persistQueue

inStreams

public List<kafka.consumer.KafkaStream<String,String>> inStreams

Constructor Detail

KafkaPersistReader

public KafkaPersistReader()

KafkaPersistReader constructor - resolves KafkaConfiguration from JVM 'kafka'.

KafkaPersistReader

public KafkaPersistReader(Queue<StreamsDatum> persistQueue)

KafkaPersistReader constructor - uses supplied persistQueue.

Method Detail

setConfig

public void setConfig(KafkaConfiguration config)

getId

public String getId()

Specified by:

getId in interface StreamsOperation

startStream

public void startStream()

Specified by:

startStream in interface StreamsProvider

readAll

public StreamsResultSet readAll()

Specified by:

readAll in interface StreamsPersistReader

readCurrent

public StreamsResultSet readCurrent()

Specified by:

readCurrent in interface StreamsProvider

readNew

public StreamsResultSet readNew(BigInteger bigInteger)

Specified by:

readNew in interface StreamsPersistReader

Specified by:

readNew in interface StreamsProvider

readRange

public StreamsResultSet readRange(org.joda.time.DateTime dateTime,
                                  org.joda.time.DateTime dateTime2)

Specified by:

readRange in interface StreamsPersistReader

Specified by:

readRange in interface StreamsProvider

isRunning

public boolean isRunning()

Specified by:

isRunning in interface StreamsProvider

prepare

public void prepare(Object configurationObject)

Specified by:

prepare in interface StreamsOperation

cleanUp

public void cleanUp()

Specified by:

cleanUp in interface StreamsOperation