A possibility to have different logger universes in one JVM instance I have described last week. See Thread "Use different log files inside one program".
Applying this solution you can achieve your wished <clientID> within the filename. The problem of the daily log is solved at best with DailyRollingFileAppender. But: Placing the date before the extension is not yet supported by log4j (actual productive release). Currently the DailyRollingFileAppender works like this: the actual log file has not date, when the file rolls over, the date is appended to the file name like: <filename>.<ext><datepattern>. I think next release will have improved possibilities for defining file name patterns. If your desired pattern (date before extension) is a must for you, you have to write your own DailyRollingFileAppender. Heri > -----Original Message----- > From: Christian Rosenberger [mailto:[EMAIL PROTECTED] > Sent: Monday, February 27, 2006 3:02 PM > To: log4j-user@logging.apache.org > Subject: Single logfile per User and Day > > > Hi all, > > I've a requirement for logging with log4j for each userID and day to a > single file. > > The userID is provided as a parameter to the constructor of > the first class > of my application. > > the logfilename should look like this: > > applicationlog.<clientID>.<currentdate>.log > > How can that be achived with log4J? > > I've seen a posting which shows the usage of MDC to let me > log the userID > within the logfile, e.g. "TIMESTAMP [USERID] - Output of > Log". But that > means a real huge logfile per day. The number of clientIDs > are restricted to > 100, so I've 100 logfiles per day at max. > > Is it possible to include some parameters out of the MDC as a > filename? To > set the system properties isn't really an option, as each > user thread would > override the others. > > The problem with a custom appender is, that I would have to > specify the > userID in each class constructor I'm using. > > Any idea? > > Thanks in advance. > > Regards, > Christian > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
