logger.h

#ifndef _LOGGER_H
#define _LOGGER_H
/*
 * Fledge storage service.
 *
 * Copyright (c) 2017-2018 OSisoft, LLC
 *
 * Released under the Apache 2.0 Licence
 *
 * Author: Mark Riddoch, Massimiliano Pinto
 */

#include <string>

#define PRINT_FUNC  Logger::getLogger()->info("%s:%d", __FUNCTION__, __LINE__);

class Logger {
    public:
        Logger(const std::string& application);
        ~Logger();
        static Logger *getLogger();
        void debug(const std::string& msg, ...);
        void printLongString(const std::string&);
        void info(const std::string& msg, ...);
        void warn(const std::string& msg, ...);
        void error(const std::string& msg, ...);
        void fatal(const std::string& msg, ...);
        void setMinLevel(const std::string& level);
        std::string& getMinLevel() { return levelString; }
    private:
        std::string     *format(const std::string& msg, va_list ap);
        static Logger   *instance;
        std::string     levelString;
        int     m_level;
};

#endif