How can I use a weblogic server's root path in an XML?

Question

Hi all,
I hope I posted this to the correct newsgroup...
Anyway, I have a question about getting a Weblogic (9.2) server's root directory in an XML config file. I'm trying to use a log4j.xml file to set up a logger for my application, but when I use just the file name in the "file" parameter for the Appender, the logger writes the file to the domain directory. I'm avoiding hard-coding of the server path because the deployment system's configuration may be different than mine.
So, is it possible to get the server's root directory in an XML config file?
Thanks for the help!

Answer 1

By the way, here's the XML:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
  <appender name="mibLogFile" class="org.apache.log4j.DailyRollingFileAppender">
    <param name="File" value="mib_application.log" />
    <param name="DatePattern" value=".yyyy_MM_dd"/>
    <param name="Append" value="true"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d{MM/dd/yyyy HH:mm:ss} [%t] %c %x%n  %-5p %m%n"/>
    </layout>
  </appender>
  <root>
    <level value="info"/>
    <appender-ref ref="mibLogFile"/>
  </root>
</log4j:configuration>I tried using "$WL_ROOT/logs/" at the start of the file name, thinking that $WL_ROOT would work for the env variable for the server root path. But it doesn't exist, and I don't think I'll have access on the deployment server to add any environment variables, so I was hoping to use something native to Weblogic. Any thoughts??