examples/echo/ws-echo/server/profiles/dev/log.xml

<logging>
  <filter enabled="true">
    <tag>stdout</tag>
    <type>console</type>
    <!-- level is (:?FINEST|FINE|DEBUG|TRACE|INFO|WARNING|ERROR) -->
    <level>DEBUG</level>
  </filter>
  <filter enabled="true">
    <tag>debug_file</tag>
    <type>file</type>
    <level>DEBUG</level>
    <property name="filename">logs/debug.log</property>
    <property name="format">[%D %T] [%L] [%S] %M</property>
    <property name="rotate">true</property> <!-- true enables log rotation, otherwise append -->
    <property name="maxsize">0M</property> <!-- \d+[KMG]? Suffixes are in terms of 2**10 -->
    <property name="maxlines">0K</property> <!-- \d+[KMG]? Suffixes are in terms of thousands -->
    <property name="daily">true</property> <!-- Automatically rotates when a log message is written after midnight -->
  </filter>
  <filter enabled="true">
    <tag>info_file</tag>
    <type>file</type>
    <level>INFO</level>
    <property name="filename">logs/info.log</property>
    <!--
       %T - Time (15:04:05 MST)
       %t - Time (15:04)
       %D - Date (2006/01/02)
       %d - Date (01/02/06)
       %L - Level (FNST, FINE, DEBG, TRAC, WARN, EROR, CRIT)
       %S - Source
       %M - Message
       It ignores unknown format strings (and removes them)
       Recommended: "[%D %T] [%L] (%S) %M"
    -->
    <property name="format">[%D %T] [%L] [%S] %M</property>
    <property name="rotate">true</property> <!-- true enables log rotation, otherwise append -->
    <property name="maxsize">0M</property> <!-- \d+[KMG]? Suffixes are in terms of 2**10 -->
    <property name="maxlines">0K</property> <!-- \d+[KMG]? Suffixes are in terms of thousands -->
    <property name="daily">true</property> <!-- Automatically rotates when a log message is written after midnight -->
  </filter>
  <filter enabled="true">
    <tag>warn_file</tag>
    <type>file</type>
    <level>WARNING</level>
    <property name="filename">logs/warn.log</property>
    <property name="format">[%D %T] [%L] [%S] %M</property>
    <property name="rotate">true</property> <!-- true enables log rotation, otherwise append -->
    <property name="maxsize">0M</property> <!-- \d+[KMG]? Suffixes are in terms of 2**10 -->
    <property name="maxlines">0K</property> <!-- \d+[KMG]? Suffixes are in terms of thousands -->
    <property name="daily">true</property> <!-- Automatically rotates when a log message is written after midnight -->
  </filter>
  <filter enabled="true">
    <tag>error_file</tag>
    <type>file</type>
    <level>ERROR</level>
    <property name="filename">logs/error.log</property>
    <property name="format">[%D %T] [%L] [%S] %M</property>
    <property name="rotate">true</property> <!-- true enables log rotation, otherwise append -->
    <property name="maxsize">0M</property> <!-- \d+[KMG]? Suffixes are in terms of 2**10 -->
    <property name="maxlines">0K</property> <!-- \d+[KMG]? Suffixes are in terms of thousands -->
    <property name="daily">true</property> <!-- Automatically rotates when a log message is written after midnight -->
  </filter>
</logging>