org.apache.flume.sink.solr.morphline
Class UUIDInterceptor

java.lang.Object
  org.apache.flume.sink.solr.morphline.UUIDInterceptor

All Implemented Interfaces:

Interceptor

public class UUIDInterceptor
extends Object
implements Interceptor

Flume Interceptor that sets a universally unique identifier on all events that are intercepted. By default this event header is named "id".

Nested Class Summary

static class

UUIDInterceptor.Builder Builder implementations MUST have a public no-arg constructor

Field Summary

static String	HEADER_NAME
static String	PREFIX_NAME
static String	PRESERVE_EXISTING_NAME

Constructor Summary

protected

UUIDInterceptor(Context context)

Method Summary

void	close() Perform any closing / shutdown needed by the Interceptor.
protected String	generateUUID()
protected String	getPrefix()
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.
protected boolean	isMatch(Event event)

Methods inherited from class java.lang.Object

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

Field Detail

HEADER_NAME

public static final String HEADER_NAME

See Also:

Constant Field Values

PRESERVE_EXISTING_NAME

public static final String PRESERVE_EXISTING_NAME

See Also:

Constant Field Values

PREFIX_NAME

public static final String PREFIX_NAME

See Also:

Constant Field Values

Constructor Detail

UUIDInterceptor

protected UUIDInterceptor(Context context)

Method Detail

initialize

public void initialize()

Description copied from interface: Interceptor

Any initialization / startup needed by the Interceptor.

Specified by:

initialize in interface Interceptor

getPrefix

protected String getPrefix()

generateUUID

protected String generateUUID()

isMatch

protected boolean isMatch(Event event)

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.

close

public void close()

Description copied from interface: Interceptor

Perform any closing / shutdown needed by the Interceptor.

Specified by:

close in interface Interceptor