Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.vfs2; import org.apache.commons.logging.Log; /** * This class is to keep the old logging behaviour (for ant-task) and to be able to * correctly use commons-logging.<br> * I hope i could remove it sometimes. */ public final class VfsLog { // static utility class private VfsLog() { } /** * warning. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. * @param t The exception, if any. */ public static void warn(final Log vfslog, final Log commonslog, final String message, final Throwable t) { if (vfslog != null) { vfslog.warn(message, t); } else if (commonslog != null) { commonslog.warn(message, t); } } /** * warning. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. */ public static void warn(final Log vfslog, final Log commonslog, final String message) { if (vfslog != null) { vfslog.warn(message); } else if (commonslog != null) { commonslog.warn(message); } } /** * debug. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. */ public static void debug(final Log vfslog, final Log commonslog, final String message) { if (vfslog != null) { vfslog.debug(message); } else if (commonslog != null) { commonslog.debug(message); } } /** * debug. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. * @param t The exception, if any. */ public static void debug(final Log vfslog, final Log commonslog, final String message, final Throwable t) { if (vfslog != null) { vfslog.debug(message, t); } else if (commonslog != null) { commonslog.debug(message, t); } } /** * info. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. * @param t The exception, if any. */ public static void info(final Log vfslog, final Log commonslog, final String message, final Throwable t) { if (vfslog != null) { vfslog.info(message, t); } else if (commonslog != null) { commonslog.info(message, t); } } /** * info. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. */ public static void info(final Log vfslog, final Log commonslog, final String message) { if (vfslog != null) { vfslog.info(message); } else if (commonslog != null) { commonslog.info(message); } } /** * error. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. * @param t The exception, if any. */ public static void error(final Log vfslog, final Log commonslog, final String message, final Throwable t) { if (vfslog != null) { vfslog.error(message, t); } else if (commonslog != null) { commonslog.error(message, t); } } /** * error. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. */ public static void error(final Log vfslog, final Log commonslog, final String message) { if (vfslog != null) { vfslog.error(message); } else if (commonslog != null) { commonslog.error(message); } } /** * fatal. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. * @param t The exception, if any. */ public static void fatal(final Log vfslog, final Log commonslog, final String message, final Throwable t) { if (vfslog != null) { vfslog.fatal(message, t); } else if (commonslog != null) { commonslog.fatal(message, t); } } /** * fatal. * @param vfslog The base component Logger to use. * @param commonslog The class specific Logger * @param message The message to log. */ public static void fatal(final Log vfslog, final Log commonslog, final String message) { if (vfslog != null) { vfslog.fatal(message); } else if (commonslog != null) { commonslog.fatal(message); } } }