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75 lines
2.2 KiB
Java
75 lines
2.2 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package examples.subclass;
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import org.apache.log4j.*;
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import examples.customLevel.XLevel;
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/**
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A simple example showing logger subclassing.
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<p>See <b><a href="doc-files/MyLogger.java">source code</a></b>
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for more details.
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<p>See {@link MyLoggerTest} for a usage example.
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*/
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public class MyLogger extends Logger {
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// It's usually a good idea to add a dot suffix to the fully
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// qualified class name. This makes caller localization to work
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// properly even from classes that have almost the same fully
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// qualified class name as MyLogger, e.g. MyLoggerTest.
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static String FQCN = MyLogger.class.getName() + ".";
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// It's enough to instantiate a factory once and for all.
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private static MyLoggerFactory myFactory = new MyLoggerFactory();
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/**
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Just calls the parent constuctor.
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*/
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public MyLogger(String name) {
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super(name);
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}
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/**
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Overrides the standard debug method by appending " world" at the
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end of each message. */
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public
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void debug(Object message) {
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super.log(FQCN, Level.DEBUG, message + " world.", null);
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}
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/**
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This method overrides {@link Logger#getLogger} by supplying
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its own factory type as a parameter.
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*/
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public
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static
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Logger getLogger(String name) {
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return Logger.getLogger(name, myFactory);
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}
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public
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void trace(Object message) {
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super.log(FQCN, XLevel.TRACE, message, null);
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}
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}
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