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/*
 * Copyright 2001-2004 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.commons.logging.impl;

import java.io.Serializable;
import org.apache.log.Logger;
import org.apache.log.Hierarchy;
import org.apache.commons.logging.Log;

/**
 * 

Implementation of org.apache.commons.logging.Log * that wraps the avalon-logkit * logging system. Configuration of LogKit is left to the user. *

* *

LogKit accepts only String messages. * Therefore, this implementation converts object messages into strings * by called their toString() method before logging them.

* * @author Scott Sanders * @author Robert Burrell Donkin * @version $Id: LogKitLogger.java,v 1.9 2004/06/01 19:56:46 rdonkin Exp $ */ public class LogKitLogger implements Log, Serializable { // ------------------------------------------------------------- Attributes /** Logging goes to this LogKit logger */ protected transient Logger logger = null; /** Name of this logger */ protected String name = null; // ------------------------------------------------------------ Constructor /** * Construct LogKitLogger which wraps the LogKit * logger with given name. * * @param name log name */ public LogKitLogger(String name) { this.name = name; this.logger = getLogger(); } // --------------------------------------------------------- Public Methods /** *

Return the underlying Logger we are using.

*/ public Logger getLogger() { if (logger == null) { logger = Hierarchy.getDefaultHierarchy().getLoggerFor(name); } return (logger); } // ----------------------------------------------------- Log Implementation /** * Log message to LogKit logger with DEBUG priority. */ public void trace(Object message) { debug(message); } /** * Log error to LogKit logger with DEBUG priority. */ public void trace(Object message, Throwable t) { debug(message, t); } /** * Log message to LogKit logger with DEBUG priority. */ public void debug(Object message) { if (message != null) { getLogger().debug(String.valueOf(message)); } } /** * Log error to LogKit logger with DEBUG priority. */ public void debug(Object message, Throwable t) { if (message != null) { getLogger().debug(String.valueOf(message), t); } } /** * Log message to LogKit logger with INFO priority. */ public void info(Object message) { if (message != null) { getLogger().info(String.valueOf(message)); } } /** * Log error to LogKit logger with INFO priority. */ public void info(Object message, Throwable t) { if (message != null) { getLogger().info(String.valueOf(message), t); } } /** * Log message to LogKit logger with WARN priority. */ public void warn(Object message) { if (message != null) { getLogger().warn(String.valueOf(message)); } } /** * Log error to LogKit logger with WARN priority. */ public void warn(Object message, Throwable t) { if (message != null) { getLogger().warn(String.valueOf(message), t); } } /** * Log message to LogKit logger with ERROR priority. */ public void error(Object message) { if (message != null) { getLogger().error(String.valueOf(message)); } } /** * Log error to LogKit logger with ERROR priority. */ public void error(Object message, Throwable t) { if (message != null) { getLogger().error(String.valueOf(message), t); } } /** * Log message to LogKit logger with FATAL_ERROR priority. */ public void fatal(Object message) { if (message != null) { getLogger().fatalError(String.valueOf(message)); } } /** * Log error to LogKit logger with FATAL_ERROR priority. */ public void fatal(Object message, Throwable t) { if (message != null) { getLogger().fatalError(String.valueOf(message), t); } } /** * Check whether the LogKit logger will log messages of priority DEBUG. */ public boolean isDebugEnabled() { return getLogger().isDebugEnabled(); } /** * Check whether the LogKit logger will log messages of priority ERROR. */ public boolean isErrorEnabled() { return getLogger().isErrorEnabled(); } /** * Check whether the LogKit logger will log messages of priority FATAL_ERROR. */ public boolean isFatalEnabled() { return getLogger().isFatalErrorEnabled(); } /** * Check whether the LogKit logger will log messages of priority INFO. */ public boolean isInfoEnabled() { return getLogger().isInfoEnabled(); } /** * Check whether the LogKit logger will log messages of priority DEBUG. */ public boolean isTraceEnabled() { return getLogger().isDebugEnabled(); } /** * Check whether the LogKit logger will log messages of priority WARN. */ public boolean isWarnEnabled() { return getLogger().isWarnEnabled(); } }


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