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| |
| <div class="section"> |
| <h2><a name="JDK_Logging_Adapter"></a>JDK Logging Adapter</h2> |
| |
| <p> |
| The JDK Logging Adapter is a custom implementation of |
| <a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/LogManager.html">java.util.logging.LogManager</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> |
| |
| <div class="section"> |
| <h2><a name="Requirements"></a>Requirements</h2> |
| |
| <p> |
| The JDK Logging Adapter requires at least Java 6 and is dependent on the Log4j API and optionally Log4j Core. |
| </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" class="javadoc">org.apache.logging.log4j.jul.LogManager</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="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Filter.html">java.util.logging.Filter</a> |
| is supported on a per-<a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Logger.html">Logger</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="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Handler.html">java.util.logging.Handler</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" class="javadoc">Appender</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" class="javadoc">LevelConverter</a>, and the |
| Log4j property <kbd>log4j.jul.levelConverter</kbd> 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> |
| |
| <table border="0" class="bodyTable"><caption>Default Level conversions</caption> |
| |
| <thead> |
| |
| <tr class="a"> |
| |
| <th>Java Level</th> |
| |
| <th>Log4j Level</th> |
| </tr> |
| </thead> |
| <tbody> |
| |
| <tr class="b"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#OFF">OFF</a></td> |
| |
| <td>OFF</td> |
| </tr> |
| |
| <tr class="a"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#SEVERE">SEVERE</a></td> |
| |
| <td>ERROR</td> |
| </tr> |
| |
| <tr class="b"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#WARNING">WARNING</a></td> |
| |
| <td>WARN</td> |
| </tr> |
| |
| <tr class="a"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#INFO">INFO</a></td> |
| |
| <td>INFO</td> |
| </tr> |
| |
| <tr class="b"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#CONFIG">CONFIG</a></td> |
| |
| <td><a href="apidocs/org/apache/logging/log4j/jul/LevelTranslator.html#CONFIG" class="javadoc">CONFIG</a></td> |
| </tr> |
| |
| <tr class="a"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#FINE">FINE</a></td> |
| |
| <td>DEBUG</td> |
| </tr> |
| |
| <tr class="b"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#FINER">FINER</a></td> |
| |
| <td>TRACE</td> |
| </tr> |
| |
| <tr class="a"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#FINEST">FINEST</a></td> |
| |
| <td><a href="apidocs/org/apache/logging/log4j/jul/LevelTranslator.html#FINEST" class="javadoc">FINEST</a></td> |
| </tr> |
| |
| <tr class="b"> |
| |
| <td><a class="javadoc" href="http://docs.oracle.com/javase/6/docs/api/java/util/logging/Level.html#ALL">ALL</a></td> |
| |
| <td>ALL</td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| |
| |
| </td> |
| </tr> |
| </table> |
| </div> |
| |
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