org.apache.flume.interceptor
Class InterceptorChain

java.lang.Object
  org.apache.flume.interceptor.InterceptorChain

All Implemented Interfaces:

Interceptor

public class InterceptorChain
extends Object
implements Interceptor

Implementation of Interceptor that calls a list of other Interceptors serially.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flume.interceptor.Interceptor

Interceptor.Builder

Constructor Summary

InterceptorChain()

Method Summary

void	close() Perform any closing / shutdown needed by the Interceptor.
void	initialize() Any initialization / startup needed by the Interceptor.
Event	intercept(Event event) Interception of a single Event.
List<Event>	intercept(List<Event> events) Interception of a batch of events.
void	setInterceptors(List<Interceptor> interceptors)

Methods inherited from class java.lang.Object

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

Constructor Detail

InterceptorChain

public InterceptorChain()

Method Detail

setInterceptors

public void setInterceptors(List<Interceptor> interceptors)

intercept

public Event intercept(Event event)

Description copied from interface: Interceptor

Interception of a single Event.

Specified by:

intercept in interface Interceptor

Parameters:

event - Event to be intercepted

Returns:

Original or modified event, or null if the Event is to be dropped (i.e. filtered out).

intercept

public List<Event> intercept(List<Event> events)

Description copied from interface: Interceptor

Interception of a batch of events.

Specified by:

intercept in interface Interceptor

Parameters:

events - Input list of events

Returns:

Output list of events. The size of output list MUST NOT BE GREATER than the size of the input list (i.e. transformation and removal ONLY). Also, this method MUST NOT return null. If all events are dropped, then an empty List is returned.

initialize

public void initialize()

Description copied from interface: Interceptor

Any initialization / startup needed by the Interceptor.

Specified by:

initialize in interface Interceptor

close

public void close()

Description copied from interface: Interceptor

Perform any closing / shutdown needed by the Interceptor.

Specified by:

close in interface Interceptor