uk.org.simonsite.log4j.appender

Class LoggingEventDispatcher

java.lang.Object

uk.org.simonsite.log4j.appender.LoggingEventDispatcher

All Implemented Interfaces:

Runnable

final class LoggingEventDispatcher
extends Object
implements Runnable

Accepts LoggingEvents from application threads and inserts them into the tail of a queue; uses a dispatch thread to take events from the head of the queue and forward them to attached appenders.

At construction time, if the configuration parameter UseConcurrentBackport is true, this class searches the CLASSPATH for the class LinkedBlockingDeque, typically be found in the SourceForge backport-util-concurrent JAR. If the LinkedBlockingDeque class is found, then the backport-util-concurrent implementations are instantiated and used by this dispatcher. Otherwise default implementations for Java 1.6, 1.5, or the default for Java 1.4 will be used.

Version:

2.7

Author:

Simon Park

Constructor Summary

Constructors

Constructor and Description
LoggingEventDispatcher(ExecutingAppenderAttachable parent, ActiveAsynchronousAppenderProperties appenderProperties)

Method Summary

Methods

Modifier and Type	Method and Description
(package private) void	begin() Fire up the dispatch thread.
(package private) void	dispatch(LoggingEvent event) Performs asynchronous dispatch if the dispatcher thread is running, otherwise does a direct dispatch to all attached appenders.
(package private) void	end() Flush the queue and destroy the dispatcher thread.
void	run()

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggingEventDispatcher

LoggingEventDispatcher(ExecutingAppenderAttachable parent,
                      ActiveAsynchronousAppenderProperties appenderProperties)

Method Detail

run

public final void run()

Specified by:

run in interface Runnable

begin

final void begin()

Fire up the dispatch thread.

dispatch

final void dispatch(LoggingEvent event)

Performs asynchronous dispatch if the dispatcher thread is running, otherwise does a direct dispatch to all attached appenders.

Parameters:

event -

end

final void end()

Flush the queue and destroy the dispatcher thread.