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Subject: multiple files
To: general@logging.apache.org
From: "Daniel Carvalho" <dcarvalho@finibanco.pt>
Date: Thu, 29 Jun 2006 17:03:53 +0100
Message-ID: <OF387CB27A.4FE3F325-ON8025719C.0057FF53@finibanco.pt>
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Hi.

i would like to have log4j configured so that each logger is appended t=
o a different file.

The filename would be based on logger's name, with dots replaced by fil=
e-separator. For instance, the logger named "aplic.dada.x1" would go to=

"/MYLOGDIR/aplic/dada/x1.log"

It would be nice to have an appender "FileTreeAppender" with this funci=
onality. Then i would configure the root logger to use this appender.
Acorddingly to log4j rules, all other loggers would inherit this append=
er.

But this wouldn't work, because all loggers would use the same instance=
 of FileTreeAppender, but i want their outputs to go to different files=
. One
solution would be the "FileTreeAppender.doAppend" method choose the fil=
e based in LoggingEvent.getLoggerName(), but this would be very slow.

So i think i will have to dinamically create an FileAppender for each L=
ogger. I would like to ask if there is a way to automatically do this, =
each
time someone calls Logger.getLogger.

I saw that one solution was to define LoggerFactory. But the API says: =
"The usage of custom logger factories is discouraged and no longer docu=
mented."

can someone point to better solutions?

thanks
daniel


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