Kevin, Sounds logical. I just couldn't believe I was the first to suggest a more generic approach to file rolling. ;-)
-- Thomas | -----Original Message----- | From: Kevin Steppe [mailto:[EMAIL PROTECTED]] | Sent: 22 April 2002 17:06 | To: Log4J Users List | Subject: Re: how to dynamically change the logfile at run time | | | Thomas, | That will be the design idea for improvements in the 1.3 | version I'll be | working on. The idea is to separate the "When and how do I | change files?" from | the implementation details of putting logging events into a files. | | Kevin | | | Thomas Tuft Muller wrote: | | > Yeah, but the initiator wanted to *change* the file at runtime, not | > *set* it just before configuration. | > | > This functionality is basically a RollingFileAppender rolling the file | > on a different criteria than file size (or time). | > | > The class org.apache.log4j.varia.ExternallyRolledFileAppender could | > maybe be used as a starting point, since this almost provides the | > functionality needed: an externally triggered rolling. | > | > Without any profound knowledge of the internal design, I guess this | > maybe calls for a generic RollingFileAppender which handles the rolling | > specific behaviour, and subclasses that implements the triggering of it. | > | > -- | > | > Thomas | > | > | -----Original Message----- | > | From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] | > | Sent: 22 April 2002 14:09 | > | To: [EMAIL PROTECTED] | > | Subject: RE: how to dynamically change the logfile at run time | > | | > | | > | One way that i use to specify the filename dynamically is setting | > | this in the properties file: | > | | > | # Appender definition | > | log4j.appender.appender_name = org.apache.log4j.FileAppender | > | log4j.appender.appender_name.File = ${file.name} | > | log4j.appender.appender_name.ImmediateFlush = true | > | log4j.appender.appender_name.layout = org.apache.log4j.PatternLayout | > | log4j.appender.appender_name.layout.ConversionPattern = | > | %d{HH:mm:ss,SSS} [%c] [%p] (%F:%L) - %m%n | > | | > | Then in the code, before executing the | > | PropertyConfigurator.configure write this line: | > | | > | System.setProperty("file.name", "C:\\apps\\logs\\file1.log"); | > | | > | Hope this helps | > | | > | | > | | > | -----Original Message----- | > | From: ext Thomas Tuft Muller [mailto:[EMAIL PROTECTED]] | > | Sent: 22. April 2002 14:56 | > | To: Log4J Users List | > | Subject: RE: how to dynamically change the logfile at run time | > | | > | | > | Yeah, that's why I suggested that you remove the "old" appender | > | with the unwanted file-name. | > | | > | If this suggestion doesn't suffice, write your own Appender satisfying | > | your particular needs. | > | | > | -- | > | | > | Thomas | > | | > | | > | | -----Original Message----- | > | | From: Marta Maldonado [mailto:[EMAIL PROTECTED]] | > | | Sent: 22 April 2002 13:47 | > | | To: Log4J Users List | > | | Subject: Re: how to dynamically change the logfile at run time | > | | | > | | | > | | ...I think addAppender method is accumulative... | > | | | > | | Thomas Tuft Muller wrote: | > | | | > | | > Instead of changing the log file of a specified appender, you can | > | | > just (programmatically) add a new appender with the new file, and | > | | > possibly remove the old one. | > | | > | > | | > ... | > | | > Logger logger = Logger.getLogger( "foo.bar" ); | > | | > Appender appender = new FileAppender( new PatternLayout( ... ), | > | | > "foo-bar.log", false ); | > | | > logger.addAppender( appender ); | > | | > ... | > | | > | > | | > Hope this helps. | > | | > | > | | > -- | > | | > | > | | > Thomas | > | | > | > | | > | -----Original Message----- | > | | > | From: Castaway Gladiator [mailto:[EMAIL PROTECTED]] | > | | > | Sent: 19 April 2002 21:48 | > | | > | To: [EMAIL PROTECTED] | > | | > | Subject: how to dynamically change the logfile at run time | > | | > | | > | | > | | > | | > | How to dynamically change the logfile at run time for a | > | given Appender | > | | > | I want to create a log file with name based on th einput | > | | > | parameter passed | > | | > | at runtime | > | | > | Thanks | > | | > | Balaji Venkatesan | > | | > | | > | | > | | _________________________________________________________________ | > | | > | Get your FREE download of MSN Explorer at | > | | > | http://explorer.msn.com/intl.asp. | > | | > | | > | | > | | > | | > | -- | > | | > | To unsubscribe, e-mail: | > | | > | <mailto:[EMAIL PROTECTED]> | > | | > | For additional commands, e-mail: | > | | > | <mailto:[EMAIL PROTECTED]> | > | | > | | > | | > | | > | | > | > | | > | > | | | > | | ************************************************************************* | > | | > Copyright ERA Technology Ltd. 2002. 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