org.apache.flume.source

Class SequenceGeneratorSource

java.lang.Object

org.apache.flume.source.AbstractSource

org.apache.flume.source.SequenceGeneratorSource

All Implemented Interfaces:

Configurable, LifecycleAware, NamedComponent, PollableSource, Source

public class SequenceGeneratorSource
extends AbstractSource
implements PollableSource, Configurable

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flume.PollableSource

PollableSource.Status

Constructor Summary

Constructors

Constructor and Description
SequenceGeneratorSource()

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(Context context) Read parameters from context batchSize = type int that defines the size of event batches
PollableSource.Status	process() Attempt to pull an item from the source, sending it to the channel.
void	start() Starts a service or component.
void	stop() Stops a service or component.

Methods inherited from class org.apache.flume.source.AbstractSource

getChannelProcessor, getLifecycleState, getName, setChannelProcessor, setName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flume.Source

getChannelProcessor, setChannelProcessor

Methods inherited from interface org.apache.flume.lifecycle.LifecycleAware

getLifecycleState

Methods inherited from interface org.apache.flume.NamedComponent

getName, setName

Constructor Detail

SequenceGeneratorSource

public SequenceGeneratorSource()

Method Detail

configure

public void configure(Context context)

Read parameters from context

batchSize = type int that defines the size of event batches

Specified by:

configure in interface Configurable

process

public PollableSource.Status process()
                              throws EventDeliveryException

Description copied from interface: PollableSource

Attempt to pull an item from the source, sending it to the channel.

When driven by an EventDrivenSourceRunner process is guaranteed to be called only by a single thread at a time, with no concurrency. Any other mechanism driving a pollable source must follow the same semantics.

Specified by:

process in interface PollableSource

Returns:

READY if one or more events were created from the source. BACKOFF if no events could be created from the source.

Throws:

EventDeliveryException - If there was a failure in delivering to the attached channel, or if a failure occurred in acquiring data from the source.

start

public void start()

Description copied from interface: LifecycleAware

Starts a service or component.

Implementations should determine the result of any start logic and effect the return value of LifecycleAware.getLifecycleState() accordingly.

Specified by:

start in interface LifecycleAware

Overrides:

start in class AbstractSource

stop

public void stop()

Description copied from interface: LifecycleAware

Stops a service or component.

Implementations should determine the result of any stop logic and effect the return value of LifecycleAware.getLifecycleState() accordingly.

Specified by:

stop in interface LifecycleAware

Overrides:

stop in class AbstractSource