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| <!-- vim: set syn=markdown : --> |
| <!-- Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
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| http://www.apache.org/licenses/LICENSE-2.0 |
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| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. --><h1>Log4j JDK Logging Adapter</h1> |
| <p>The JDK Logging Adapter is a custom implementation of <a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/LogManager.html"><tt>java.util.logging.LogManager</tt></a> that uses <a href="../log4j-core/index.html">Log4j</a>. This adapter can be used with either the Log4j API or Log4j Core. When used with the API, there are a couple features of JUL that aren’t supported. However, this does allow any other Log4j Provider besides the Core provider to be used with JUL.</p> |
| <div class="section"> |
| <h2><a name="Requirements"></a>Requirements</h2> |
| <p>The JDK Logging Adapter is dependent on the Log4j API and optionally Log4j Core. For more information, see <a href="../runtime-dependencies.html">Runtime Dependencies</a>.</p></div> |
| <div class="section"> |
| <h2><a name="Usage"></a>Usage</h2> |
| <p>To use the JDK Logging Adapter, you must set the system property <tt>java.util.logging.manager</tt> to <a href="apidocs/org/apache/logging/log4j/jul/LogManager.html"><tt>org.apache.logging.log4j.jul.LogManager</tt></a></p> |
| <p>This must be done either through the command line (i.e., using the <tt>-Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager</tt> argument) or by using <tt>System.setProperty()</tt> before any calls are made to <tt>LogManager</tt> or <tt>Logger</tt>.</p></div> |
| <div class="section"> |
| <h2><a name="Compatibility"></a>Compatibility</h2> |
| <p>The use of a <a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Filter.html"><tt>java.util.logging.Filter</tt></a> is supported on a per-<a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Logger.html"><tt>Logger</tt></a> basis. However, it is recommended to use the standard <a href="../manual/filters.html">Filters</a> feature in Log4j instead.</p> |
| <p>The use of <a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Handler.html"><tt>java.util.logging.Handler</tt></a> classes is <i>NOT</i> supported. Custom Handlers should instead use an appropriate <a href="../manual/appenders.html">Appender</a> or code their own <a href="../log4j-core/apidocs/org/apache/logging/log4j/core/Appender.html"><tt>Appender</tt></a> plugin.</p> |
| <p>Java logging levels are translated into Log4j logging levels dynamically. The following table lists the conversions between a Java logging level and its equivalent Log4j level. Custom levels should be implemented as an implementation of <a href="apidocs/org/apache/logging/log4j/jul/LevelConverter.html"><tt>LevelConverter</tt></a>, and the Log4j property <tt>log4j.jul.levelConverter</tt> must be set to your custom class name. Using the default <tt>LevelConverter</tt> implementation, custom logging levels are mapped to whatever the current level of the <tt>Logger</tt> being logged to is using.</p> |
| <div class="section"> |
| <h3><a name="Default_Level_Conversions"></a>Default Level Conversions</h3> |
| |
| <table border="0" class="bodyTable"> |
| <thead> |
| |
| <tr class="a"> |
| |
| <th>Java Level </th> |
| |
| <th>Log4j Level</th> |
| </tr> |
| </thead> |
| <tbody> |
| |
| <tr class="b"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#OFF"><tt>OFF</tt></a> </td> |
| |
| <td><tt>OFF</tt></td> |
| </tr> |
| |
| <tr class="a"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#SEVERE"><tt>SEVERE</tt></a> </td> |
| |
| <td><tt>ERROR</tt></td> |
| </tr> |
| |
| <tr class="b"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#WARNING"><tt>WARNING</tt></a> </td> |
| |
| <td><tt>WARN</tt></td> |
| </tr> |
| |
| <tr class="a"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#INFO"><tt>INFO</tt></a> </td> |
| |
| <td><tt>INFO</tt></td> |
| </tr> |
| |
| <tr class="b"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#CONFIG"><tt>CONFIG</tt></a> </td> |
| |
| <td><a href="apidocs/org/apache/logging/log4j/jul/LevelTranslator.html#CONFIG"><tt>CONFIG</tt></a></td> |
| </tr> |
| |
| <tr class="a"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#FINE"><tt>FINE</tt></a> </td> |
| |
| <td><tt>DEBUG</tt></td> |
| </tr> |
| |
| <tr class="b"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#FINER"><tt>FINER</tt></a> </td> |
| |
| <td><tt>TRACE</tt></td> |
| </tr> |
| |
| <tr class="a"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#FINEST"><tt>FINEST</tt></a> </td> |
| |
| <td><a href="apidocs/org/apache/logging/log4j/jul/LevelTranslator.html#FINEST"><tt>FINEST</tt></a></td> |
| </tr> |
| |
| <tr class="b"> |
| |
| <td><a class="externalLink" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#ALL"><tt>ALL</tt></a> </td> |
| |
| <td><tt>ALL</tt></td> |
| </tr> |
| </tbody> |
| </table></div></div> |
| </td> |
| </tr> |
| </table> |
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