Repository: ant Updated Branches: refs/heads/1.9.x 6bb1f2f05 -> a1258d875
document how to use the Log4j 1.2 Bridge Project: http://git-wip-us.apache.org/repos/asf/ant/repo Commit: http://git-wip-us.apache.org/repos/asf/ant/commit/a1258d87 Tree: http://git-wip-us.apache.org/repos/asf/ant/tree/a1258d87 Diff: http://git-wip-us.apache.org/repos/asf/ant/diff/a1258d87 Branch: refs/heads/1.9.x Commit: a1258d875c22ee4b3d666ab6fdb9178a6e5136ad Parents: 6bb1f2f Author: Jan Matèrne <j...@apache.org> Authored: Tue Jan 23 14:25:19 2018 +0100 Committer: Jan Matèrne <j...@apache.org> Committed: Tue Jan 23 14:26:24 2018 +0100 ---------------------------------------------------------------------- manual/listeners.html | 39 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 37 insertions(+), 2 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/ant/blob/a1258d87/manual/listeners.html ---------------------------------------------------------------------- diff --git a/manual/listeners.html b/manual/listeners.html index bbb03e0..e201638 100644 --- a/manual/listeners.html +++ b/manual/listeners.html @@ -418,6 +418,41 @@ log4j.appender.LogFile.file=build.log <p>For more information about configuring Log4J see <a href="http://logging.apache.org/log4j/docs/documentation.html";>its documentation page</a>.</p> +<h4>Using the Log4j 1.2 Bridge</h4> +You could use the <a href="http://logging.apache.org/log4j/2.x/log4j-1.2-api/index.html";>Log4j Bridge</a> +if your application is written against the Log4j (1.x) API, but you want to use the Log4j 2.x runtime. +For using the bridge with Ant you have to add +<ul> + <li>log4j-1.2-api-${log4j.version}.jar</li> + <li>log4j-api-${log4j.version}.jar</li> + <li>log4j-core-${log4j.version}.jar</li> + <li>log4j2.xml</li> +</ul> +to your classpath (e.g. via the <code>-lib</code> option). +Translating the 1.x properties file into the 2.x xml syntax would result in +<blockquote> +<pre><code><?xml version="1.0" encoding="UTF-8"?> +<Configuration status="WARN"> + <Appenders> + <File name="file" fileName="build.log"> + <PatternLayout> + <Pattern>[%6r] %8c{1} : %m%n</Pattern> + </PatternLayout> + </File> + </Appenders> + <Loggers> + <Root level="ERROR"> + <AppenderRef ref="file" level="DEBUG"/> + </Root> + <Logger name="org.apache.tools.ant.Project" level="INFO"/> + <Logger name="org.apache.tools.ant.Project" level="INFO"/> + <Logger name="org.apache.tools.ant.taskdefs" level="INFO"/> + <Logger name="org.apache.tools.ant.taskdefs.Echo" level="WARN"/> + </Loggers> +</Configuration> +</code></pre> +</blockquote> + <h3><a name="XmlLogger">XmlLogger</a></h3> @@ -605,7 +640,7 @@ developers.</p> <ul> <li> - A listener or logger should not write to standard output or error in the <code>messageLogged() method</code>; + A listener or logger should not write to standard output or error in the <code>messageLogged()</code> method; Ant captures these internally and it will trigger an infinite loop. </li> <li> @@ -613,7 +648,7 @@ developers.</p> the output is processed. Slow logging means a slow build. </li> <li>When a build is started, and <code>BuildListener.buildStarted(BuildEvent event)</code> is called, - the project is not fully functional. The build has started, yes, and the event.getProject() method call + the project is not fully functional. The build has started, yes, and the <code>event.getProject()</code> method call returns the Project instance, but that project is initialized with JVM and ant properties, nor has it parsed the build file yet. You cannot call <code>Project.getProperty()</code> for property lookup, or <code>Project.getName()</code> to get the project name (it will return null).
