1 /* <!-- copyright */ 2 /* 3 * aria2 - The high speed download utility 4 * 5 * Copyright (C) 2006 Tatsuhiro Tsujikawa 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 * 21 * In addition, as a special exception, the copyright holders give 22 * permission to link the code of portions of this program with the 23 * OpenSSL library under certain conditions as described in each 24 * individual source file, and distribute linked combinations 25 * including the two. 26 * You must obey the GNU General Public License in all respects 27 * for all of the code used other than OpenSSL. If you modify 28 * file(s) with this exception, you may extend this exception to your 29 * version of the file(s), but you are not obligated to do so. If you 30 * do not wish to do so, delete this exception statement from your 31 * version. If you delete this exception statement from all source 32 * files in the program, then also delete it here. 33 */ 34 /* copyright --> */ 35 #ifndef D_LOG_FACTORY_H 36 #define D_LOG_FACTORY_H 37 38 #include "common.h" 39 40 #include <string> 41 #include <memory> 42 43 #include "Logger.h" 44 45 namespace aria2 { 46 47 class LogFactory { 48 private: 49 static std::string filename_; 50 static std::shared_ptr<Logger> logger_; 51 static bool consoleOutput_; 52 static Logger::LEVEL logLevel_; 53 static Logger::LEVEL consoleLogLevel_; 54 static bool colorOutput_; 55 56 static void openLogger(const std::shared_ptr<Logger>& logger); 57 58 static void adjustDependentLevels(); 59 60 LogFactory(); 61 62 public: 63 /** 64 * Get logger instance. Returned logger is singleton. 65 * This function is not thread-safe. 66 */ 67 static const std::shared_ptr<Logger>& getInstance(); 68 69 /** 70 * Set a filename to write log. If name is "-", log is written to 71 * stdout. If name is "", log is not written to file. 72 */ 73 static void setLogFile(const std::string& name); 74 75 /** 76 * Set flag whether the log is printed in console. 77 * If f is false, log is not printed in console. 78 */ setConsoleOutput(bool f)79 static void setConsoleOutput(bool f) { consoleOutput_ = f; } 80 81 /** 82 * Set log level to output to file. 83 */ 84 static void setLogLevel(Logger::LEVEL level); 85 86 /** 87 * Set log level to output to file by string represention of log 88 * level. Possible values are: debug, info, notice, warn, error 89 */ 90 static void setLogLevel(const std::string& level); 91 92 /** 93 * Set log level to output to console. 94 */ 95 static void setConsoleLogLevel(Logger::LEVEL level); 96 97 /** 98 * Set log level to output to console by string represention of log 99 * level. Possible values are: debug, info, notice, warn, error 100 */ 101 static void setConsoleLogLevel(const std::string& level); 102 103 /** 104 * Enable color output if |enabled| is true. By default, color 105 * output is enabled for terminal. 106 */ 107 static void setColorOutput(bool enabled); 108 109 /** 110 * Releases used resources 111 */ 112 static void release(); 113 114 static void reconfigure(); 115 }; 116 117 #define A2_LOG_DEBUG_ENABLED \ 118 aria2::LogFactory::getInstance()->levelEnabled(Logger::A2_DEBUG) 119 120 #define A2_LOG(level, msg) \ 121 { \ 122 const std::shared_ptr<aria2::Logger>& logger = \ 123 aria2::LogFactory::getInstance(); \ 124 if (logger->levelEnabled(level)) \ 125 logger->log(level, __FILE__, __LINE__, msg); \ 126 } 127 #define A2_LOG_EX(level, msg, ex) \ 128 { \ 129 const std::shared_ptr<aria2::Logger>& logger = \ 130 aria2::LogFactory::getInstance(); \ 131 if (logger->levelEnabled(level)) \ 132 logger->log(level, __FILE__, __LINE__, msg, ex); \ 133 } 134 135 #define A2_LOG_DEBUG(msg) A2_LOG(Logger::A2_DEBUG, msg) 136 #define A2_LOG_DEBUG_EX(msg, ex) A2_LOG_EX(Logger::A2_DEBUG, msg, ex) 137 138 #define A2_LOG_INFO(msg) A2_LOG(Logger::A2_INFO, msg) 139 #define A2_LOG_INFO_EX(msg, ex) A2_LOG_EX(Logger::A2_INFO, msg, ex) 140 141 #define A2_LOG_NOTICE(msg) A2_LOG(Logger::A2_NOTICE, msg) 142 #define A2_LOG_NOTICE_EX(msg, ex) A2_LOG_EX(Logger::A2_NOTICE, msg, ex) 143 144 #define A2_LOG_WARN(msg) A2_LOG(Logger::A2_WARN, msg) 145 #define A2_LOG_WARN_EX(msg, ex) A2_LOG_EX(Logger::A2_WARN, msg, ex) 146 147 #define A2_LOG_ERROR(msg) A2_LOG(Logger::A2_ERROR, msg) 148 #define A2_LOG_ERROR_EX(msg, ex) A2_LOG_EX(Logger::A2_ERROR, msg, ex) 149 150 } // namespace aria2 151 152 #endif // D_LOG_FACTORY_H 153