001/*
002 * Copyright 2001-2004 The Apache Software Foundation.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.apache.log4j;
018
019import org.apache.log4j.spi.LoggerFactory;
020
021import java.util.Enumeration;
022import java.util.Vector;
023
024/**
025 * <p/>
026 * This class is a minimal implementation of the original
027 * <code>org.apache.log4j.LogManager</code> class (as found in log4j 1.2)
028 * delegating all calls to SLF4J.
029 * <p/>
030 * <p/>
031 * This implementation does <b>NOT</b> implement the setRepositorySelector(),
032 * getLoggerRepository(), exists(), getCurrentLoggers(), shutdown() and
033 * resetConfiguration() methods which do not have SLF4J equivalents.
034 *
035 * @author Ceki G&uuml;lc&uuml;
036 */
037@SuppressWarnings("rawtypes")
038public class LogManager {
039
040    public static Logger getRootLogger() {
041        return Log4jLoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
042    }
043
044    public static Logger getLogger(final String name) {
045        return Log4jLoggerFactory.getLogger(name);
046    }
047
048    public static Logger getLogger(final Class clazz) {
049        return Log4jLoggerFactory.getLogger(clazz.getName());
050    }
051
052    /**
053     * Returns a logger instance created by loggerFactory. This method was requested in
054     * <a href="http://jira.qos.ch/browse/SLF4J-225">SLF4J-225</a>. Note that
055     * log4j-over-slf4j does not ship with a LoggerFactory implementation. If this
056     * method is called, the caller must provide his/her own implementation.
057     *
058     * @param name          the name of the desired logger
059     * @param loggerFactory an instance of {@link LoggerFactory}
060     * @return returns a logger instance created by loggerFactory
061     * @since 1.6.6
062     */
063    public static Logger getLogger(String name, LoggerFactory loggerFactory) {
064        return loggerFactory.makeNewLoggerInstance(name);
065    }
066
067    /**
068     * This bogus implementation returns an empty enumeration.
069     *
070     * @return
071     */
072    public static Enumeration getCurrentLoggers() {
073        return new Vector().elements();
074    }
075
076    /**
077     * Implemented as NOP.
078     */
079    public static void shutdown() {
080    }
081
082    /**
083     * Implemented as NOP.
084     */
085    public static void resetConfiguration() {
086    }
087}