001/* 002 * $Id: Logger.java 4863 2011-05-12 07:01:55Z redlab_b $ 003 * 004 * This file is part of the iText (R) project. Copyright (c) 1998-2011 1T3XT 005 * BVBA Authors: Balder Van Camp, Emiel Ackermann, et al. 006 * 007 * This program is free software; you can redistribute it and/or modify it under 008 * the terms of the GNU Affero General License version 3 as published by the 009 * Free Software Foundation with the addition of the following permission added 010 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK 011 * IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT, 1T3XT DISCLAIMS THE WARRANTY OF NON 012 * INFRINGEMENT OF THIRD PARTY RIGHTS. 013 * 014 * This program is distributed in the hope that it will be useful, but WITHOUT 015 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 016 * FOR A PARTICULAR PURPOSE. See the GNU Affero General License for more 017 * details. You should have received a copy of the GNU Affero General License 018 * along with this program; if not, see http://www.gnu.org/licenses or write to 019 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 020 * MA, 02110-1301 USA, or download the license from the following URL: 021 * http://itextpdf.com/terms-of-use/ 022 * 023 * The interactive user interfaces in modified source and object code versions 024 * of this program must display Appropriate Legal Notices, as required under 025 * Section 5 of the GNU Affero General License. 026 * 027 * In accordance with Section 7(b) of the GNU Affero General License, a covered 028 * work must retain the producer line in every PDF that is created or 029 * manipulated using iText. 030 * 031 * You can be released from the requirements of the license by purchasing a 032 * commercial license. Buying such a license is mandatory as soon as you develop 033 * commercial activities involving the iText software without disclosing the 034 * source code of your own applications. These activities include: offering paid 035 * services to customers as an ASP, serving PDFs on the fly in a web 036 * application, shipping iText with a closed source product. 037 * 038 * For more information, please contact iText Software Corp. at this address: 039 * sales@itextpdf.com 040 */ 041package com.itextpdf.text.log; 042 043/** 044 * Logger interface 045 * {@link LoggerFactory#setLogger(Logger)}. 046 * 047 * @author redlab_b 048 * 049 */ 050public interface Logger { 051 052 /** 053 * @param klass 054 * @return the logger for the given klass 055 */ 056 Logger getLogger(Class<?> klass); 057 058 Logger getLogger(String name); 059 /** 060 * @param level 061 * @return true if there should be logged for the given level 062 */ 063 boolean isLogging(Level level); 064 /** 065 * Log a warning message. 066 * @param message 067 */ 068 void warn(final String message); 069 070 /** 071 * Log a trace message. 072 * @param message 073 */ 074 void trace(final String message); 075 076 /** 077 * Log a debug message. 078 * @param message 079 */ 080 void debug(final String message); 081 082 /** 083 * Log an info message. 084 * @param message 085 */ 086 void info(final String message); 087 /** 088 * Log an error message. 089 * @param message 090 */ 091 void error(final String message); 092 093 /** 094 * Log an error message and exception. 095 * @param message 096 * @param e 097 */ 098 void error(final String message, Exception e); 099 100 /** 101 * @param name 102 * @return 103 */ 104 105}