slsDetectorPackage/slsReceiverSoftware/include/logger.h

#pragma once

#include <sstream>
#include <string>
#include <stdio.h>
#include <unistd.h>
#include <ansi.h>



#ifdef FIFODEBUG
#define FILELOG_MAX_LEVEL logDEBUG5
#elif VERYVERBOSE
#define FILELOG_MAX_LEVEL logDEBUG4
#elif VERBOSE
#define FILELOG_MAX_LEVEL logDEBUG
#endif

#ifndef FILELOG_MAX_LEVEL
#define FILELOG_MAX_LEVEL logINFO
#endif


#define STRINGIFY(x) #x
#define TOSTRING(x) STRINGIFY(x)
#define MYCONCAT(x,y)  
#define __AT__  string(__FILE__) + string("::") + string(__func__) + string("(): ")
#define __SHORT_FORM_OF_FILE__ \
(strrchr(__FILE__,'/') \
? strrchr(__FILE__,'/')+1 \
: __FILE__ \
)
#define __SHORT_AT__  string(__SHORT_FORM_OF_FILE__) + string("::") + string(__func__) + string("(): ")




inline std::string NowTime();

enum TLogLevel {logERROR, logWARNING, logINFO, logDEBUG, logDEBUG1, logDEBUG2, logDEBUG3, logDEBUG4, logDEBUG5};

template <typename T> class Log{
 public:
	Log();
	virtual ~Log();
	std::ostringstream& Get(TLogLevel level = logINFO);
	static TLogLevel& ReportingLevel();
	static std::string ToString(TLogLevel level);
	static TLogLevel FromString(const std::string& level);
 protected:
	std::ostringstream os;
	TLogLevel lev;
 private:
	Log(const Log&);
	Log& operator =(const Log&);
};


class Output2FILE {
public:
    static FILE*& Stream();
    static void Output(const std::string& msg);
    static void Output(const std::string& msg, TLogLevel level);
};

#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
#   if defined (BUILDING_FILELOG_DLL)
#       define FILELOG_DECLSPEC   __declspec (dllexport)
#   elif defined (USING_FILELOG_DLL)
#       define FILELOG_DECLSPEC   __declspec (dllimport)
#   else
#       define FILELOG_DECLSPEC
#   endif // BUILDING_DBSIMPLE_DLL
#else
#   define FILELOG_DECLSPEC
#endif // _WIN32

class FILELOG_DECLSPEC FILELog : public Log<Output2FILE> {};
//typedef Log<Output2FILE> FILELog;

#ifdef REST
#define FILE_LOG(level) \
	if (level > FILELOG_MAX_LEVEL) ;				\
	else if (level > FILELog::ReportingLevel() || !Output2FILE::Stream()) ; \
	else FILELog().Get(level)
#else
	#define FILE_LOG(level) \
	if (level > FILELOG_MAX_LEVEL) ;				\
	else if (level > FILELog::ReportingLevel() || !Output2FILE::Stream()) ; \
	else FILELog().Get(level)
#endif

#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)

#include <windows.h>



inline std::string NowTime()

{
    const int MAX_LEN = 200;
    char buffer[MAX_LEN];
    if (GetTimeFormatA(LOCALE_USER_DEFAULT, 0, 0, 
            "HH':'mm':'ss", buffer, MAX_LEN) == 0)
        return "Error in NowTime()";

    char result[100] = {0};
    static DWORD first = GetTickCount();
    sprintf(result, "%s.%03ld", buffer, (long)(GetTickCount() - first) % 1000); 
    return result;
}

#else

#include <sys/time.h>

inline std::string NowTime()
{
    char buffer[11];
    const int buffer_len = sizeof(buffer);
    time_t t;
    time(&t);
    tm r = {0};
    strftime(buffer, buffer_len, "%X", localtime_r(&t, &r));
    buffer[buffer_len - 1] = 0;
    struct timeval tv;
    gettimeofday(&tv, 0);
    char result[100];
    const int result_len = sizeof(result);
    snprintf(result, result_len, "%s.%03ld", buffer, (long)tv.tv_usec / 1000);
    result[result_len - 1] = 0;
    return result;
}

#endif //WIN32


template <typename T> Log<T>::Log():lev(logDEBUG){}

template <typename T> std::ostringstream& Log<T>::Get(TLogLevel level)
{
	lev = level;
    os << "- " << NowTime();
    os << " " << ToString(level) << ": ";
    if (level > logDEBUG)
    	os << std::string(level - logDEBUG, '\t');
    return os;
}

template <typename T> Log<T>::~Log()
{
    os << std::endl;
#ifdef REST
    T::Output( os.str());
#else
    T::Output( os.str(),lev);
#endif
}

template <typename T> TLogLevel& Log<T>::ReportingLevel()
{
    static TLogLevel reportingLevel = logDEBUG5;
    return reportingLevel;
}

template <typename T> std::string Log<T>::ToString(TLogLevel level)
{
	static const char* const buffer[] = {"ERROR", "WARNING", "INFO", "DEBUG", "DEBUG1", "DEBUG2", "DEBUG3", "DEBUG4","DEBUG5"};
    return buffer[level];
}

template <typename T>
TLogLevel Log<T>::FromString(const std::string& level)
{
    if (level == "DEBUG5")
        return logDEBUG5;
    if (level == "DEBUG4")
        return logDEBUG4;
    if (level == "DEBUG3")
        return logDEBUG3;
    if (level == "DEBUG2")
        return logDEBUG2;
    if (level == "DEBUG1")
        return logDEBUG1;
    if (level == "DEBUG")
        return logDEBUG;
    if (level == "INFO")
        return logINFO;
    if (level == "WARNING")
        return logWARNING;
    if (level == "ERROR")
        return logERROR;
    Log<T>().Get(logWARNING) << "Unknown logging level '" << level << "'. Using INFO level as default.";
    return logINFO;
}


inline FILE*& Output2FILE::Stream()
{
    static FILE* pStream = stderr;
    return pStream;
}

inline void Output2FILE::Output(const std::string& msg)
{   
    FILE* pStream = Stream();
    if (!pStream)
        return;
    fprintf(pStream, "%s", msg.c_str());
    fflush(pStream);
}

inline void Output2FILE::Output(const std::string& msg, TLogLevel level)
{
    FILE* pStream = Stream();
    if (!pStream)
        return;
    bool out = true;
    switch(level){
    case logERROR:		bprintf(RED BOLD,"%s",msg.c_str()); 	break;
    case logWARNING:	bprintf(YELLOW BOLD,"%s",msg.c_str()); 	break;
    case logINFO:		bprintf(GRAY,"%s",msg.c_str());			break;
   // case logINFO:		bprintf(DARKGRAY BOLD,"%s",msg.c_str());break;
    default: 			fprintf(pStream,"%s",msg.c_str()); 	out = false; 	break;
    }
    fflush(out ? stdout : pStream);
}

#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
#   if defined (BUILDING_FILELOG_DLL)
#       define FILELOG_DECLSPEC   __declspec (dllexport)
#   elif defined (USING_FILELOG_DLL)
#       define FILELOG_DECLSPEC   __declspec (dllimport)
#   else
#       define FILELOG_DECLSPEC
#   endif // BUILDING_DBSIMPLE_DLL
#else
#   define FILELOG_DECLSPEC
#endif // _WIN32