AW: getting an Appender object at runtime

[gyoergy.magoss]

Hi Marco,

To make sure, you get all available loggers , I would use

for( Enumeration enumLoggers = 
LogManager.getCurrentLoggers();enumLoggers.hasMoreElements();) {
        Logger logCurrent = (Logger) enumLoggers.nextElement() ;
        for (Enumeration enumAppenders = 
logCurrent.getAllAppenders();enumAppenders.hasMoreElements();) {
                .... evaluate your appender
        }
}



However I would do it the other way around. Why don't you write your own Managing 
class, and when an Appender is instantiated (or bound to a logger)  register it with 
this class? Then you could ask your own Manager class. 

Regards

Gyoergy
-----Urspr�ngliche Nachricht-----
Von: Marco Herrn [mailto:[EMAIL PROTECTED] 
Gesendet: Freitag, 5. M�rz 2004 11:00
An: [EMAIL PROTECTED]
Betreff: getting an Appender object at runtime


I have written my own Appender by extending AppenderSkeleton. Log4j uses 
this Appender, so everything is fine.
But I need my application to access this Appender at runtime so that 
they can register with this Appender to get the logging events forwarded 
(the Appender has a method register() that is called by all classes that 
want to get the LoggingEvents forwarded).
But now I have the problem accessing the Appender.

I tried it this way:

logger = Logger.getLogger(NetzAppManager.class);
logger.info("got the logger");                  
Enumeration e= logger.getAllAppenders();


The Problem is, I get a NullNumeration. The appenders obviously exist, 
since the logger.info() statement works, I get append() events on all 
appenders.

What have I done wrong?

Marco


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