001/*
002 * $HeadURL: file:///opt/dev/not-yet-commons-ssl-SVN-repo/tags/commons-ssl-0.3.17/src/java/org/apache/commons/ssl/LogHelper.java $
003 * $Revision: 121 $
004 * $Date: 2007-11-13 21:26:57 -0800 (Tue, 13 Nov 2007) $
005 *
006 * ====================================================================
007 * Licensed to the Apache Software Foundation (ASF) under one
008 * or more contributor license agreements.  See the NOTICE file
009 * distributed with this work for additional information
010 * regarding copyright ownership.  The ASF licenses this file
011 * to you under the Apache License, Version 2.0 (the
012 * "License"); you may not use this file except in compliance
013 * with the License.  You may obtain a copy of the License at
014 *
015 *   http://www.apache.org/licenses/LICENSE-2.0
016 *
017 * Unless required by applicable law or agreed to in writing,
018 * software distributed under the License is distributed on an
019 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
020 * KIND, either express or implied.  See the License for the
021 * specific language governing permissions and limitations
022 * under the License.
023 * ====================================================================
024 *
025 * This software consists of voluntary contributions made by many
026 * individuals on behalf of the Apache Software Foundation.  For more
027 * information on the Apache Software Foundation, please see
028 * <http://www.apache.org/>.
029 *
030 */
031
032package org.apache.commons.ssl;
033
034import org.apache.log4j.Logger;
035
036/**
037 * <p/>
038 * Wraps a Log4j Logger.  This non-public class is the one actually interacting
039 * with the log4j.jar library.  That way LogWrapper can safely attempt to use
040 * log4j.jar, but still degrade gracefully and provide logging via standard-out
041 * even if log4j is unavailable.
042 * <p/>
043 * The interactions with log4j.jar could be done directly inside LogWrapper
044 * as long as the Java code is compiled by Java 1.4 or greater (still works
045 * at runtime in Java 1.3).  The interactions with log4j.jar only need to be
046 * pushed out into a separate class like this for people using a Java 1.3
047 * compiler, which creates bytecode that is more strict with depedency
048 * checking.
049 *
050 * @author Credit Union Central of British Columbia
051 * @author <a href="http://www.cucbc.com/">www.cucbc.com</a>
052 * @author <a href="mailto:juliusdavies@cucbc.com">juliusdavies@cucbc.com</a>
053 * @since 3-Aug-2006
054 */
055final class LogHelper {
056    private final Logger l;
057
058    LogHelper(Class c) { l = Logger.getLogger(c); }
059
060    LogHelper(String s) { l = Logger.getLogger(s); }
061
062    void debug(Object o) { l.debug(o); }
063
064    void debug(Object o, Throwable t) { l.debug(o, t); }
065
066    void info(Object o) { l.info(o); }
067
068    void info(Object o, Throwable t) { l.info(o, t); }
069
070    void warn(Object o) { l.warn(o); }
071
072    void warn(Object o, Throwable t) { l.warn(o, t); }
073
074    void error(Object o) { l.error(o); }
075
076    void error(Object o, Throwable t) { l.error(o, t); }
077
078    void fatal(Object o) { l.fatal(o); }
079
080    void fatal(Object o, Throwable t) { l.fatal(o, t); }
081
082    boolean isDebugEnabled() { return l.isDebugEnabled(); }
083
084    boolean isInfoEnabled() { return l.isInfoEnabled(); }
085
086    Object getLog4jLogger() { return l; }
087}