    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}