Hey !
This is a really helpfull answer, that's exactly what I wanted, because
like you I don't really like to put log configuration within the code :)
I'm looking forward to use it ;)
I'll try later to determine Log4cxx behaviour with 2 applic, just to know,
it's still an intersting question...
Thanks a lot Thorsten !
2012/2/23 Thorsten Schöning <tschoen...@am-soft.de>
> Guten Tag drkmkzs,
> am Mittwoch, 22. Februar 2012 um 16:55 schrieben Sie:
>
> > And i imagine a better approach would be to configure log4cxx within the
> > code (instead property file) in order to change log file name for each
> > processess ?
>
> Not necessarily. I don't know if log4cxx properly handles concurrent
> access to the same file on a per process basis, but I personally
> dislike configuring log4cxx in code and in your case it wouldn't be
> necessary, depending on what your really try to achieve with your log
> files. If it's just about to separate the log files of more than one
> instance of your program, one approach could be to provide a unique
> environment variable in your program on per instance basis before
> configuring log4cxx with its property or xml file, because log4cxx is
> able to use environment variable in the configuration at least in
> paths. I use that to distinct two calls of the same program by
> different callers where the callers provide an id of who they are and
> that id is set as an environment variable and used in the log
> configuration as part of the path to the log file. This ID can be
> whatever you like, process id, GUID, something from the caller, it all
> depends on what you do with the logs.
>
> The syntax to get something from the environment is ${something}, like
> in the following example:
>
> <appender name="Dbxml.monthSpecificLogFile"
> class="org.apache.log4j.rolling.RollingFileAppender">
> <rollingPolicy
> class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
> <param name="FileNamePattern"
>
>
> value="..\..\..\Datenserver\Logdateien\dbxml\dbxml\${mandant}\%d{yyyy-MM}.log"
> />
> </rollingPolicy>
> <layout class="org.apache.log4j.PatternLayout">
> <param name="ConversionPattern"
> value="%d{yyyy-MM-dd HH:mm:ss,SSS} %p> %c.%M: %m%n"
> />
> </layout>
> <param name="append"
> value="true"
> />
> </appender>
>
> Mit freundlichen Grüßen,
>
> Thorsten Schöning
>
> --
> Thorsten Schöning E-Mail:thorsten.schoen...@am-soft.de
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