jboss-log4j

  <!-- audit log -->
  <appender name="audit" class="org.jboss.logging.appender.DailyRollingFileAppender">
      <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>
      <param name="File" value="${jboss.server.log.dir}/audit.log"/>
      <param name="Append" value="true"/>
      <param name="Threshold" value="INFO"/>

      <!-- Rollover at midnight each day -->
      <param name="DatePattern" value="'.'yyyy-MM-dd"/>

      <!-- Rollover at the top of each hour
      <param name="DatePattern" value="'.'yyyy-MM-dd-HH"/>
      -->

      <layout class="org.apache.log4j.PatternLayout">
         <!-- The default pattern: Date Priority [Category] (Thread) Message\n
         <param name="ConversionPattern" value="%d %-5p [%c] (%t) %m%n"/>
         -->

         <!-- The full pattern: Date MS Priority [Category] (Thread:NDC) Message\n -->
         <param name="ConversionPattern" value="%d %-5r %-5p [%c] (%t:%x) %m%n"/>

      </layout>
   </appender>

  <!-- register category -->
  <category name="ec.pazmino.example.ejb.lunch.audit">
     <priority value="DEBUG" />
     <appender-ref ref="audit"/>
   </category>