Roger -- I'm not aware of an existing appender that does what you're asking, but it wouldn't be difficult to create one. Just create a class that extends org.apache.log4j.AppenderSkeleton and override the append(LoggingEvent) method. In append(LoggingEvent), you'd run whatever program you wanted via the java.lang.Runtime class.
Ron Gallagher, AT&T Mobility -----Original Message----- From: Roger Varley [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 23, 2007 1:00 PM To: Log4J Users List Subject: Re: Third Party Appenders > > You can accomplish what you want using the components that come packaged > w/ log4j. Here's a log4j configuration that should accomplish your > goals. Explanations follow: > Ron, thank you very much for that very full and very clear explanation. I can see how this will get me most of the way to what I want by applying filters to the email appender. One last question if I may, is there an appender available that will trigger the execution of another java class when a message arrives. There is one message that requires a re-start of the application and I would like to script the restart based on the arrival of that message in the log (rather than being woken in the middle of the night when a user can't log in). I appreciate that this is not really what log4j was designed for, but when I have no control over the application itself, this seems a reasonably elegant way. Regards Gilbert --------------------------------------------------------------------- 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]
