Siphalor/tweed5-commons-logging
1
0
Fork 0
Code Activity

Add a new Log implementation for JDK 1.4 (or later) logging.

Browse Source 
Default behavior of LogSource.getInstance() is now:
* If Log4J is available, return an instance of Log4JCategoryLog
* If JDK 1.4 is available, return an instance of Jdk14Logger
* Otherwise, return an instance of NoOpLogger

As before, this default behavior can be overridden with a system
property, or by calling LogSource.setLogImplementation(), as described
in the package Javadocs.


git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/logging/trunk@138829 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Craig R. McClanahan
2002-01-05 22:40:40 +00:00
parent 09277f80cb
commit af62db1c56
4 changed files with 412 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/java/org/apache/commons/logging/package.html
View File

@@ -10,12 +10,10 @@ prebuilt support for the following:</p>
<li><a href="http://jakarta.apache.org/log4j/">Log4J</a> from Apache's
Jakarta project. Each named <a href="Log.html">Log</a> instance is
connected to a corresponding Log4J Category.</li>
<!--
<li><a href="http://java.sun.com/j2se/1.4/docs/guide/util/logging/index.html">
JDK Logging API</a>, included in JDK 1.4 or later systems. Each named
<a href="Log.html">Log</a> instance is connected to a corresponding
<code>java.util.logging.Logger</code> instance.</li>
-->
<li><a href="NoOpLog.html">NoOpLog</a> implementation that simply swallows
all log output, for all named <a href="Log.html">Log</a> isntances.</li>
<li><a href="SimpleLog.html">SimpleLog</a> implementation that writes all
@@ -41,11 +39,9 @@ following algorithm is applied:</p>
<li>If Log4J is available, return an instance of
<a href="Log4JCategoryLog.html">Log4JCategoryLog</a> that wraps a
Log4J Category instance of the specified name.</li>
<!--
<li>If the JDK 1.4 logging APIs are available, return an instance
of <a href="JdkLogger.html">JdkLogger</a> that wraps an instance of
of <a href="Jdk14Logger.html">Jdk14Logger</a> that wraps an instance of
<code>java.util.logging.Logger</code> for the specified name.</li>
-->
<li>Return an instance of <a href="NoOpLog.html">NoOpLog</a> that
throws away all logged output.</li>
</ul>
@@ -68,8 +64,8 @@ component, consists of the following steps:</p>
<li>Acquire a reference to an instance of
<a href="Log.html">org.apache.commons.logging.Log</a>, by calling the
factory method
<a href="LogSource.html#makeNewLogInstance(java.lang.String)">
LogSource.makeNewLogInstance()</a>. Your application can contain
<a href="LogSource.html#getInstance(java.lang.String)">
LogSource.getInstance(String name)</a>. Your application can contain
references to multiple loggers that are used for different
purposes. A typical scenario for a server application is to have each
major component of the server use its own Log instance.</li>
@@ -91,7 +87,7 @@ import org.apache.commons.logging.LogSource;
public class MyComponent {
protected Log log = LogSource.makeNewInstance("mycomponent");
protected Log log = LogSource.getInstance("my.component");
// Called once at startup time
public void start() {