| /* |
| * Copyright 1999,2004 The Apache Software Foundation. |
| * |
| * Licensed 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 org.apache.log4j.customLogger; |
| |
| import org.apache.log4j.*; |
| import org.apache.log4j.spi.LoggerFactory; |
| import org.apache.log4j.spi.OptionHandler; |
| import org.apache.log4j.xml.XLevel; |
| |
| |
| /** |
| A simple example showing Logger sub-classing. It shows the |
| minimum steps necessary to implement one's {@link LoggerFactory}. |
| Note that sub-classes follow the hierarchy even if its loggers |
| belong to different classes. |
| */ |
| public class XLogger extends Logger implements OptionHandler { |
| // 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 XLogger, such as XLogegoryTest. |
| private static String FQCN = XLogger.class.getName() + "."; |
| |
| // It's enough to instantiate a factory once and for all. |
| private static XFactory factory = new XFactory(); |
| String suffix = ""; |
| |
| /** |
| Just calls the parent constuctor. |
| */ |
| protected XLogger(String name) { |
| super(name); |
| } |
| |
| /** |
| Nothing to activate. |
| */ |
| public void activateOptions() { |
| } |
| |
| /** |
| Overrides the standard debug method by appending the value of |
| suffix variable to each message. |
| */ |
| public void debug(String message) { |
| super.log(FQCN, Level.DEBUG, message + " " + suffix, null); |
| } |
| |
| /** |
| We introduce a new printing method in order to support {@link |
| XLevel#LETHAL}. */ |
| public void lethal(String message, Throwable t) { |
| if (repository.isDisabled(XLevel.LETHAL_INT)) { |
| return; |
| } |
| |
| if (XLevel.LETHAL.isGreaterOrEqual(this.getEffectiveLevel())) { |
| forcedLog(FQCN, XLevel.LETHAL, message, t); |
| } |
| } |
| |
| /** |
| We introduce a new printing method in order to support {@link |
| XLevel#LETHAL}. */ |
| public void lethal(String message) { |
| if (repository.isDisabled(XLevel.LETHAL_INT)) { |
| return; |
| } |
| |
| if (XLevel.LETHAL.isGreaterOrEqual(this.getEffectiveLevel())) { |
| forcedLog(FQCN, XLevel.LETHAL, message, null); |
| } |
| } |
| |
| public static Logger getLogger(String name) { |
| return LogManager.getLogger(name, factory); |
| } |
| |
| public static Logger getLogger(Class clazz) { |
| return XLogger.getLogger(clazz.getName()); |
| } |
| |
| public String getSuffix() { |
| return suffix; |
| } |
| |
| public void setSuffix(String suffix) { |
| this.suffix = suffix; |
| } |
| |
| /** |
| We introduce a new printing method that takes the TRACE level. |
| */ |
| public void trace(String message, Throwable t) { |
| if (repository.isDisabled(XLevel.TRACE_INT)) { |
| return; |
| } |
| |
| if (XLevel.TRACE.isGreaterOrEqual(this.getEffectiveLevel())) { |
| forcedLog(FQCN, XLevel.TRACE, message, t); |
| } |
| } |
| |
| /** |
| We introduce a new printing method that takes the TRACE level. |
| */ |
| public void trace(String message) { |
| if (repository.isDisabled(XLevel.TRACE_INT)) { |
| return; |
| } |
| |
| if (XLevel.TRACE.isGreaterOrEqual(this.getEffectiveLevel())) { |
| forcedLog(FQCN, XLevel.TRACE, message, null); |
| } |
| } |
| |
| // Any sub-class of Logger must also have its own implementation of |
| // CategoryFactory. |
| public static class XFactory implements LoggerFactory { |
| public XFactory() { |
| } |
| |
| public Logger makeNewLoggerInstance(String name) { |
| return new XLogger(name); |
| } |
| } |
| } |