Logger.h

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/*
 * i6engine
 * Copyright (2016) Daniel Bonrath, Michael Baer, All rights reserved.
 *
 * This file is part of i6engine; i6engine is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef __I6ENGINE_UTILS_LOGGER_H__
#define __I6ENGINE_UTILS_LOGGER_H__

#include <string>

#include "i6engine/i6engineBuildSettings.h"

#ifdef ISIXE_WITH_LOGGING
        #include "i6engine/utils/i6eSystemParameters.h"
        #include "i6engine/utils/Singleton.h"

        #include "boost/log/common.hpp"
        #include "boost/log/core.hpp"
        #include "boost/log/sinks.hpp"
#endif

#ifdef ISIXE_WITH_LOGGING
        #define ISIXE_LOG_DEBUG(module, message) {\
                std::stringstream logMessageString; \
                logMessageString << message; \
                i6e::utils::Logger::GetSingleton().LogMessage(i6e::utils::LogLevel::LOGDEBUG, __FILE__, __LINE__, module, logMessageString.str());\
        }
        #define ISIXE_LOG_INFO(module, message) {\
                std::stringstream logMessageString; \
                logMessageString << message; \
                i6e::utils::Logger::GetSingleton().LogMessage(i6e::utils::LogLevel::LOGINFO, __FILE__, __LINE__, module, logMessageString.str());\
        }
        #define ISIXE_LOG_WARN(module, message) {\
                std::stringstream logMessageString; \
                logMessageString << message; \
                i6e::utils::Logger::GetSingleton().LogMessage(i6e::utils::LogLevel::LOGWARN, __FILE__, __LINE__, module, logMessageString.str());\
        }
        #define ISIXE_LOG_ERROR(module, message) {\
                std::stringstream logMessageString; \
                logMessageString << message; \
                i6e::utils::Logger::GetSingleton().LogMessage(i6e::utils::LogLevel::LOGERROR, __FILE__, __LINE__, module, logMessageString.str());\
        }
        #define ISIXE_LOG_FATAL(module, message) {\
                std::stringstream logMessageString; \
                logMessageString << message; \
                i6e::utils::Logger::GetSingleton().LogMessage(i6e::utils::LogLevel::LOGFATAL, __FILE__, __LINE__, module, logMessageString.str());\
        }

        #define ISIXE_LOG_SETLEVEL(level) {\
                i6e::utils::Logger::GetSingleton().setLogLevel(level);\
        }
#else
        #define ISIXE_LOG_DEBUG(module, message) {\
        }
        #define ISIXE_LOG_INFO(module, message) {\
        }
        #define ISIXE_LOG_WARN(module, message) {\
        }
        #define ISIXE_LOG_ERROR(module, message) {\
        }
        #define ISIXE_LOG_FATAL(module, message) {\
        }

        #define ISIXE_LOG_SETLEVEL(level) {\
        }
#endif // ISIXE_WITH_LOGGING

namespace i6e {
namespace utils {

        static const std::string logEnumNames[] = { "Debug", "Info", "Warning", "ERROR", "FATAL", "---" };

        enum class LogLevel : short {
                LOGDEBUG = 0,
                LOGINFO = 1,
                LOGWARN = 2,
                LOGERROR = 3,
                LOGFATAL = 4,
                LOGNONE = 5
        };

#ifdef ISIXE_WITH_LOGGING
        class Logger;

        typedef boost::log::sinks::synchronous_sink<boost::log::sinks::text_ostream_backend> TextSink;
        typedef boost::shared_ptr<TextSink> SinkPtr;
        typedef boost::shared_ptr<Logger> LogPtr;

        class ISIXE_UTILS_API Logger : public i6e::utils::Singleton<Logger> {
                friend class i6e::utils::Singleton<Logger>;

        public:
                inline void setLogLevel(const LogLevel logLevel) { _logLevel = logLevel; }

                void LogMessage(LogLevel level, const std::string & file, const int line, const std::string & module, const std::string & message);

        protected:
                Logger();

        private:
                boost::log::sources::channel_logger_mt<std::string> _logger;
                LogLevel _logLevel;
        };
#endif /* ISIXE_WITH_LOGGING */

} /* namespace utils */
} /* namespace i6e */

#endif /* __I6ENGINE_UTILS_LOGGER_H__ */