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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.juli.logging.impl;

import java.io.ObjectStreamException;
import java.io.Serializable;

import org.apache.juli.logging.Log;
import org.apache.juli.logging.org.slf4j.Logger;
import org.apache.juli.logging.org.slf4j.LoggerFactory;

/**
 * Implementation of {@link Log org.apache.juli.logging.Log} interface which
 * delegates all processing to a wrapped {@link Logger org.apache.juli.logging.org.slf4j.Logger}
 * instance.
 * 
 * 

* JCL's FATAL level is mapped to ERROR. All other levels map one to one. * * @author Ceki Gülcü */ public class SLF4JLog implements Log, Serializable { private static final long serialVersionUID = 680728617011167209L; // used to store this logger's name to recreate it after serialization protected String name; // in both Log4jLogger and Jdk14Logger classes in the original JCL, the // logger instance is transient private transient Logger logger; SLF4JLog(Logger logger) { this.logger = logger; this.name = logger.getName(); } /** * Directly delegates to the wrapped org.apache.juli.logging.org.slf4j.Logger instance. */ public boolean isDebugEnabled() { return logger.isDebugEnabled(); } /** * Directly delegates to the wrapped org.apache.juli.logging.org.slf4j.Logger instance. */ public boolean isErrorEnabled() { return logger.isErrorEnabled(); } /** * Delegates to the isErrorEnabled method of the wrapped * org.apache.juli.logging.org.slf4j.Logger instance. */ public boolean isFatalEnabled() { return logger.isErrorEnabled(); } /** * Directly delegates to the wrapped org.apache.juli.logging.org.slf4j.Logger instance. */ public boolean isInfoEnabled() { return logger.isInfoEnabled(); } /** * Delegates to the isDebugEnabled method of the wrapped * org.apache.juli.logging.org.slf4j.Logger instance. */ public boolean isTraceEnabled() { return logger.isTraceEnabled(); } /** * Directly delegates to the wrapped org.apache.juli.logging.org.slf4j.Logger instance. */ public boolean isWarnEnabled() { return logger.isWarnEnabled(); } /** * Converts the input parameter to String and then delegates to the debug * method of the wrapped org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} */ public void trace(Object message) { logger.trace(String.valueOf(message)); } /** * Converts the first input parameter to String and then delegates to the * debug method of the wrapped org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} * @param t * the exception to log */ public void trace(Object message, Throwable t) { logger.trace(String.valueOf(message), t); } /** * Converts the input parameter to String and then delegates to the wrapped * org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} */ public void debug(Object message) { logger.debug(String.valueOf(message)); } /** * Converts the first input parameter to String and then delegates to the * wrapped org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} * @param t * the exception to log */ public void debug(Object message, Throwable t) { logger.debug(String.valueOf(message), t); } /** * Converts the input parameter to String and then delegates to the wrapped * org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} */ public void info(Object message) { logger.info(String.valueOf(message)); } /** * Converts the first input parameter to String and then delegates to the * wrapped org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} * @param t * the exception to log */ public void info(Object message, Throwable t) { logger.info(String.valueOf(message), t); } /** * Converts the input parameter to String and then delegates to the wrapped * org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} */ public void warn(Object message) { logger.warn(String.valueOf(message)); } /** * Converts the first input parameter to String and then delegates to the * wrapped org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} * @param t * the exception to log */ public void warn(Object message, Throwable t) { logger.warn(String.valueOf(message), t); } /** * Converts the input parameter to String and then delegates to the wrapped * org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} */ public void error(Object message) { logger.error(String.valueOf(message)); } /** * Converts the first input parameter to String and then delegates to the * wrapped org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} * @param t * the exception to log */ public void error(Object message, Throwable t) { logger.error(String.valueOf(message), t); } /** * Converts the input parameter to String and then delegates to the error * method of the wrapped org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} */ public void fatal(Object message) { logger.error(String.valueOf(message)); } /** * Converts the first input parameter to String and then delegates to the * error method of the wrapped org.apache.juli.logging.org.slf4j.Logger instance. * * @param message * the message to log. Converted to {@link String} * @param t * the exception to log */ public void fatal(Object message, Throwable t) { logger.error(String.valueOf(message), t); } /** * Replace this instance with a homonymous (same name) logger returned by * LoggerFactory. Note that this method is only called during deserialization. * * @return logger with same name as returned by LoggerFactory * @throws ObjectStreamException */ protected Object readResolve() throws ObjectStreamException { Logger logger = LoggerFactory.getLogger(this.name); return new SLF4JLog(logger); } }