org.apache.logging.log4j.core.appender.rewrite
Class MapRewritePolicy

java.lang.Object
  org.apache.logging.log4j.core.appender.rewrite.MapRewritePolicy

All Implemented Interfaces:

RewritePolicy

@Plugin(name="MapRewritePolicy",
        category="Core",
        elementType="rewritePolicy",
        printObject=true)
public final class MapRewritePolicy
extends Object
implements RewritePolicy

This policy modifies events by replacing or possibly adding keys and values to the MapMessage.

Nested Class Summary

static class

MapRewritePolicy.Mode An enumeration to identify whether keys not in the MapMessage should be added or whether only existing keys should be updated.

Field Summary

protected static Logger

LOGGER Allow subclasses access to the status logger without creating another instance.

Method Summary

static MapRewritePolicy	createPolicy(String mode, KeyValuePair[] pairs) The factory method to create the MapRewritePolicy.
LogEvent	rewrite(LogEvent source) Rewrite the event.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

protected static final Logger LOGGER

Allow subclasses access to the status logger without creating another instance.

Method Detail

rewrite

public LogEvent rewrite(LogEvent source)

Rewrite the event.

Specified by:

rewrite in interface RewritePolicy

Parameters:

source - a logging event that may be returned or used to create a new logging event.

Returns:

The LogEvent after rewriting.

toString

public String toString()

Overrides:

toString in class Object

createPolicy

@PluginFactory
public static MapRewritePolicy createPolicy(@PluginAttribute(value="mode")
                                                          String mode,
                                                          @PluginElement(value="KeyValuePair")
                                                          KeyValuePair[] pairs)

The factory method to create the MapRewritePolicy.

Parameters:

mode - The string representation of the Mode.

pairs - key/value pairs for the new Map keys and values.

Returns:

The MapRewritePolicy.