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
> | | > |
> | | > | _________________________________________________________________
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