Module org.elasticsearch.grok

Package org.elasticsearch.grok

Class GrokCaptureConfig

java.lang.Object

org.elasticsearch.grok.GrokCaptureConfig

public final class GrokCaptureConfig
extends Object

Configuration for a value that Grok can capture.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	GrokCaptureConfig.NativeExtracterMap<T>	Collection of handlers for each native type.

Method Summary

Modifier and Type	Method	Description
String	name()	The name defined for the field in the pattern.
<T> T	nativeExtracter(GrokCaptureConfig.NativeExtracterMap<T> map)	Build an extract that has access to the "native" type of the extracter match.
GrokCaptureExtracter	objectExtracter(Consumer<Object> emit)	Build a GrokCaptureExtracter that will call emit when it extracts text, boxed if the "native" representation is primitive type.
GrokCaptureExtracter	rangeExtracter(Consumer<Object> emit)	Creates a GrokCaptureExtracter that will call emit with the extracted range (offset and length) when it extracts text.
GrokCaptureType	type()	The type defined for the field in the pattern.

Methods inherited from class java.lang.Object

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

Method Details

name

public String name()

The name defined for the field in the pattern.

type

public GrokCaptureType type()

The type defined for the field in the pattern.

objectExtracter

public GrokCaptureExtracter objectExtracter(Consumer<Object> emit)

Build a GrokCaptureExtracter that will call emit when it extracts text, boxed if the "native" representation is primitive type. Extracters returned from this method are stateless and can be reused.

nativeExtracter

public <T> T nativeExtracter(GrokCaptureConfig.NativeExtracterMap<T> map)

Build an extract that has access to the "native" type of the extracter match. This means that patterns like %{NUMBER:bytes:float} has access to an actual float. Extracters returned from this method should be stateless stateless and can be reused. Pathological implementations of the map parameter could violate this, but the caller should take care to stay sane.

While the goal is to produce a GrokCaptureExtracter that provides a primitive, the caller can produce whatever type-safe constructs it needs and return them from this method. Thus the <T> in the type signature.

Type Parameters:

T - The type of the result.

Parameters:

map - Collection of handlers for each native type. Only one method will be called but well behaved implementers are stateless.

Returns:

whatever was returned by the handler.

rangeExtracter

public GrokCaptureExtracter rangeExtracter(Consumer<Object> emit)

Creates a GrokCaptureExtracter that will call emit with the extracted range (offset and length) when it extracts text.