org.apache.log.output
Class AsyncLogTarget

java.lang.Object
  org.apache.log.output.AbstractTarget
      org.apache.log.output.AsyncLogTarget

All Implemented Interfaces:

Runnable, ErrorAware, LogTarget

public class AsyncLogTarget
extends AbstractTarget
implements Runnable

An asynchronous LogTarget that sends entries on in another thread. It is the responsibility of the user of this class to start the thread etc.

 LogTarget mySlowTarget = ...;
 AsyncLogTarget asyncTarget = new AsyncLogTarget( mySlowTarget );
 Thread thread = new Thread( asyncTarget );
 thread.setPriority( Thread.MIN_PRIORITY );
 thread.start();

 logger.setLogTargets( new LogTarget[] { asyncTarget } );
 

Author:

Avalon Development Team, Peter Donald

Constructor Summary

AsyncLogTarget(LogTarget logTarget)
Creation of a new async log target.

AsyncLogTarget(LogTarget logTarget, int queueSize)
Creation of a new async log target.

Method Summary

void	doProcessEvent(LogEvent event) Process a log event by adding it to queue.
void	run() Thread startup.
void	setErrorHandler(ErrorHandler errorHandler) Provide component with ErrorHandler.

Methods inherited from class org.apache.log.output.AbstractTarget

close, error, getErrorHandler, isOpen, open, processEvent

Methods inherited from class java.lang.Object

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

Constructor Detail

AsyncLogTarget

public AsyncLogTarget(LogTarget logTarget)

Creation of a new async log target.

Parameters:

logTarget - the underlying target

AsyncLogTarget

public AsyncLogTarget(LogTarget logTarget,
                      int queueSize)

Creation of a new async log target.

Parameters:

logTarget - the underlying target

queueSize - the queue size

Method Detail

setErrorHandler

public void setErrorHandler(ErrorHandler errorHandler)

Provide component with ErrorHandler.

Specified by:

setErrorHandler in interface ErrorAware

Overrides:

setErrorHandler in class AbstractTarget

Parameters:

errorHandler - the errorHandler

doProcessEvent

public void doProcessEvent(LogEvent event)

Process a log event by adding it to queue.

Specified by:

doProcessEvent in class AbstractTarget

Parameters:

event - the log event

run

public void run()

Thread startup.

Specified by:

run in interface Runnable