io.siddhi.extension.io.kafka.source

Class KafkaSource

java.lang.Object

io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>

io.siddhi.extension.io.kafka.source.KafkaSource

All Implemented Interfaces:

io.siddhi.core.stream.input.source.SourceSyncCallback

public class KafkaSource
extends io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>
implements io.siddhi.core.stream.input.source.SourceSyncCallback

This class implements a Kafka source to receive events from a kafka cluster.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	KafkaSource.KafkaSourceState State class for Kafka source.

Nested classes/interfaces inherited from class io.siddhi.core.stream.input.source.Source

io.siddhi.core.stream.input.source.Source.ConnectionCallback

Field Summary

Fields

Modifier and Type	Field and Description
static String	ADAPTOR_ENABLE_ASYNC_COMMIT
static String	ADAPTOR_ENABLE_AUTO_COMMIT
static String	ADAPTOR_ENABLE_OFFSET_COMMIT
static String	ADAPTOR_OPTIONAL_CONFIGURATION_PROPERTIES
static String	ADAPTOR_SUBSCRIBER_GROUP_ID
static String	ADAPTOR_SUBSCRIBER_PARTITION_NO_LIST
static String	ADAPTOR_SUBSCRIBER_TOPIC
static String	ADAPTOR_SUBSCRIBER_ZOOKEEPER_CONNECT_SERVERS
static String	IS_BINARY_MESSAGE
static String	SEQ_ENABLED
static String	SINGLE_THREADED
static String	THREADING_OPTION

Constructor Summary

Constructors

Constructor and Description
KafkaSource()

Method Summary

Modifier and Type	Method and Description
void	connect(io.siddhi.core.stream.input.source.Source.ConnectionCallback connectionCallback, KafkaSource.KafkaSourceState kafkaSourceState)
void	destroy()
void	disconnect()
protected io.siddhi.core.stream.ServiceDeploymentInfo	exposeServiceDeploymentInfo()
Class[]	getOutputEventClasses()
io.siddhi.core.util.snapshot.state.StateFactory<KafkaSource.KafkaSourceState>	init(io.siddhi.core.stream.input.source.SourceEventListener sourceEventListener, io.siddhi.core.util.transport.OptionHolder optionHolder, String[] strings, io.siddhi.core.util.config.ConfigReader configReader, io.siddhi.core.config.SiddhiAppContext siddhiAppContext)
void	pause()
void	resume()
void	update(String[] transportSyncProperties)

Methods inherited from class io.siddhi.core.stream.input.source.Source

connectWithRetry, getMapper, getServiceDeploymentInfo, getStreamDefinition, getType, init, isStateful, shutdown

Methods inherited from class java.lang.Object

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

Field Detail

SINGLE_THREADED

public static final String SINGLE_THREADED

See Also:

Constant Field Values

ADAPTOR_SUBSCRIBER_TOPIC

public static final String ADAPTOR_SUBSCRIBER_TOPIC

See Also:

Constant Field Values

ADAPTOR_SUBSCRIBER_GROUP_ID

public static final String ADAPTOR_SUBSCRIBER_GROUP_ID

See Also:

Constant Field Values

ADAPTOR_SUBSCRIBER_ZOOKEEPER_CONNECT_SERVERS

public static final String ADAPTOR_SUBSCRIBER_ZOOKEEPER_CONNECT_SERVERS

See Also:

Constant Field Values

ADAPTOR_SUBSCRIBER_PARTITION_NO_LIST

public static final String ADAPTOR_SUBSCRIBER_PARTITION_NO_LIST

See Also:

Constant Field Values

ADAPTOR_ENABLE_AUTO_COMMIT

public static final String ADAPTOR_ENABLE_AUTO_COMMIT

See Also:

Constant Field Values

ADAPTOR_ENABLE_OFFSET_COMMIT

public static final String ADAPTOR_ENABLE_OFFSET_COMMIT

See Also:

Constant Field Values

ADAPTOR_ENABLE_ASYNC_COMMIT

public static final String ADAPTOR_ENABLE_ASYNC_COMMIT

See Also:

Constant Field Values

ADAPTOR_OPTIONAL_CONFIGURATION_PROPERTIES

public static final String ADAPTOR_OPTIONAL_CONFIGURATION_PROPERTIES

See Also:

Constant Field Values

THREADING_OPTION

public static final String THREADING_OPTION

See Also:

Constant Field Values

SEQ_ENABLED

public static final String SEQ_ENABLED

See Also:

Constant Field Values

IS_BINARY_MESSAGE

public static final String IS_BINARY_MESSAGE

See Also:

Constant Field Values

Constructor Detail

KafkaSource

public KafkaSource()

Method Detail

init

public io.siddhi.core.util.snapshot.state.StateFactory<KafkaSource.KafkaSourceState> init(io.siddhi.core.stream.input.source.SourceEventListener sourceEventListener,
                                                                                          io.siddhi.core.util.transport.OptionHolder optionHolder,
                                                                                          String[] strings,
                                                                                          io.siddhi.core.util.config.ConfigReader configReader,
                                                                                          io.siddhi.core.config.SiddhiAppContext siddhiAppContext)

Specified by:

init in class io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>

getOutputEventClasses

public Class[] getOutputEventClasses()

Specified by:

getOutputEventClasses in class io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>

connect

public void connect(io.siddhi.core.stream.input.source.Source.ConnectionCallback connectionCallback,
                    KafkaSource.KafkaSourceState kafkaSourceState)
             throws io.siddhi.core.exception.ConnectionUnavailableException

Specified by:

connect in class io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>

Throws:

io.siddhi.core.exception.ConnectionUnavailableException

disconnect

public void disconnect()

Specified by:

disconnect in class io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>

destroy

public void destroy()

Specified by:

destroy in class io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>

pause

public void pause()

Specified by:

pause in class io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>

resume

public void resume()

Specified by:

resume in class io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>

update

public void update(String[] transportSyncProperties)

Specified by:

update in interface io.siddhi.core.stream.input.source.SourceSyncCallback

exposeServiceDeploymentInfo

protected io.siddhi.core.stream.ServiceDeploymentInfo exposeServiceDeploymentInfo()

Specified by:

exposeServiceDeploymentInfo in class io.siddhi.core.stream.input.source.Source<KafkaSource.KafkaSourceState>