I believe this is not necessary. Using a NDC and a Filter impl (the log4j_sandbox NDCMatchFilter e.g.) would do the same if I'm correct. But still it does not prevent the application (that is the buildDebugMessage() call) from building the debug message, which is quite CPU intensive.
>-----Original Message----- >From: ext James Stauffer [mailto:[EMAIL PROTECTED] >Sent: Wednesday, July 19, 2006 5:26 PM >To: Log4J Users List >Subject: Re: High performance filters > >Another option would be to write your own appender which >filters before creating the message and if it passes then >sends it to a normal appender. > >On 7/19/06, [EMAIL PROTECTED] ><[EMAIL PROTECTED]> wrote: >> This is the kind of answer I was afraid of ;) >> >> But that is a very powerfull feature some of our (large) >customers are asking for very loudly: it gives both debug >messages and good-enough performance for live systems. >> >> Sure I could do it myself, but then that would not apply to already >> existing log4j-compliant code :( >> >> I'll ask to the dev mailing list, just in case... >> >> Thanks for your help, >> Vincent. >> >> >-----Original Message----- >> >From: ext Javier Gonzalez [mailto:[EMAIL PROTECTED] >> >Sent: Wednesday, July 19, 2006 5:08 PM >> >To: Log4J Users List >> >Subject: Re: High performance filters >> > >> >On 7/19/06, [EMAIL PROTECTED] >> ><[EMAIL PROTECTED]> wrote: >> >> I hope this is clear enough :) >> > >> >It is, and your problem looks very non-trivial :) >> > >> >To me, it looks like you need to implement your own >filtering before >> >invoking buildDebugMessage(), since to access the log4j >framework you >> >need to pass an object (whose construction is what you want to >> >avoid). >> > >> >-- >> >Javier González Nicolini >> > >> >>--------------------------------------------------------------------- >> >To unsubscribe, e-mail: [EMAIL PROTECTED] >> >For additional commands, e-mail: [EMAIL PROTECTED] >> > >> > >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > >-- >James Stauffer >Are you good? Take the test at http://www.livingwaters.com/good/ > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
