/*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
package examples.subclass;
import org.apache.log4j.*;
import examples.customLevel.XLevel;
/**
A simple example showing logger subclassing.
<p>See <b><a href="doc-files/MyLogger.java">source code</a></b>
for more details.
<p>See {@link MyLoggerTest} for a usage example.
*/
public class MyLogger extends Logger {
// It's usually a good idea to add a dot suffix to the fully
// qualified class name. This makes caller localization to work
// properly even from classes that have almost the same fully
// qualified class name as MyLogger, e.g. MyLoggerTest.
static String FQCN = MyLogger.class.getName() + ".";
// It's enough to instantiate a factory once and for all.
private static MyLoggerFactory myFactory = new MyLoggerFactory();
/**
Just calls the parent constuctor.
*/
public MyLogger(String name) {
super(name);
}
/**
Overrides the standard debug method by appending " world" at the
end of each message. */
public
void debug(Object message) {
super.log(FQCN, Level.DEBUG, message + " world.", null);
}
/**
This method overrides {@link Logger#getLogger} by supplying
its own factory type as a parameter.
*/
public
static
Logger getLogger(String name) {
return Logger.getLogger(name, myFactory);
}
public
void trace(Object message) {
super.log(FQCN, XLevel.TRACE, message, null);
}
}
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