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/*
* This file is part of the Colobot: Gold Edition source code
* Copyright (C) 2001-2014, Daniel Roux, EPSITEC SA & TerranovaTeam
* http://epsiteс.ch; http://colobot.info; http://github.com/colobot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://gnu.org/licenses
*/
/**
* \file common/logger.h
* \brief Class for logging information to file or console
*/
#pragma once
#include "common/singleton.h"
#include <string>
#include <cstdarg>
#include <cstdio>
/**
* \public
* \enum LogLevel common/logger.h
* \brief Enum representing log level
**/
enum LogLevel
{
LOG_TRACE = 1, /*!< lowest level, execution tracing */
LOG_DEBUG = 2, /*!< debugging messages */
LOG_INFO = 3, /*!< information */
LOG_WARN = 4, /*!< warning */
LOG_ERROR = 5, /*!< error */
LOG_NONE = 6 /*!< none level, used for custom messages */
};
/**
* @class CLogger
*
* @brief Class for loggin information to file or console
*
*/
class CLogger : public CSingleton<CLogger>
{
public:
CLogger();
~CLogger();
/** Write message to console or file
* \param str - message to write
* \param ... - additional arguments
*/
void Message(const char *str, ...);
/** Write message to console or file with LOG_TRACE level
* \param str - message to write
* \param ... - additional arguments
*/
void Trace(const char *str, ...);
/** Write message to console or file with LOG_DEBUG level
* \param str - message to write
* \param ... - additional arguments
*/
void Debug(const char *str, ...);
/** Write message to console or file with LOG_INFO level
* \param str - message to write
* \param ... - additional arguments
*/
void Info(const char *str, ...);
/** Write message to console or file with LOG_WARN level
* \param str - message to write
* \param ... - additional arguments
*/
void Warn(const char *str, ...);
/** Write message to console or file with LOG_ERROR level
* \param str - message to write
* \param ... - additional arguments
*/
void Error(const char *str, ...);
/** Set output file to write logs to
* \param filename - output file to write to
*/
void SetOutputFile(std::string filename);
/** Set log level. Logs with level below will not be shown
* \param level - minimum log level to write
*/
void SetLogLevel(LogLevel level);
/** Parses string as a log level
* \param str string to parse
* \param logLevel result log level
*
* Valid values are "trace", "debug", "info", "warn", "error" and "none".
* On invalid value, returns \c false.
*/
static bool ParseLogLevel(const std::string& str, LogLevel& logLevel);
private:
std::string m_filename;
FILE *m_file;
LogLevel m_logLevel;
void Open();
void Close();
bool IsOpened();
void Log(LogLevel type, const char* str, va_list args);
};
//! Global function to get Logger instance
inline CLogger* GetLogger()
{
return CLogger::GetInstancePointer();
}
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