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| /*
** logger.hpp
*/
#pragma once
#include <RWL/Cpp_Tools/class_templates.hpp>
#include <RWL/Cpp_Tools/debug.hpp>
#include <iostream>
#include <string>
#include <sstream>
#include <fstream>
#include <map>
#include <memory>
#define LOG_LOCATION L" [" << __WFILE__ << L", line " << __LINE__ << L"]"
namespace rwl
{
class Logger :
private Non_copyable
{
public :
enum class Level
{
trace,
debug,
info,
warning,
error,
exception,
fatal
};
Logger( const std::wstring& name = L"" );
~Logger( void );
std::wostringstream& log( Level level );
private :
std::wstring m_name;
std::wostringstream m_logbuffer;
Level m_level;
public :
static void enable( bool enable, const std::wstring& name = L"" );
static void set_level( Level level, const std::wstring& name = L"" );
static void set_logfile( const std::wstring& file_path, const std::wstring& name = L"" );
private:
class Logger_data
{
public :
Logger_data( void );
Logger_data( const Logger_data& logger_data );
~Logger_data( void );
Logger_data& operator=( const Logger_data& logger_data );
bool enable;
Level level;
std::shared_ptr< std::wofstream > logfile;
};
typedef std::map< const std::wstring, Logger_data > Logger_data_map;
static Logger_data_map m_loggers_data;
};
}
/*
** logger.cpp
*/
#include <RWL/Cpp_Tools/logger.hpp>
#include <locale>
#include <codecvt>
namespace rwl
{
Logger::Logger_data::Logger_data( void ) :
enable( true ),
level( Logger::Level::trace ),
logfile( std::make_shared< std::wofstream >() )
{
}
Logger::Logger_data::Logger_data( const Logger::Logger_data& logger_data ) :
enable( logger_data.enable ),
level( logger_data.level ),
logfile( logger_data.logfile )
{
}
Logger::Logger_data::~Logger_data( void )
{
logfile->close();
}
Logger::Logger_data& Logger::Logger_data::operator=( const Logger_data& logger_data )
{
enable = logger_data.enable;
level =logger_data.level;
logfile = logger_data.logfile;
return ( *this );
}
Logger::Logger_data_map Logger::m_loggers_data;
Logger::Logger( const std::wstring& name /*= L"" */ ) :
m_name( name )
{
}
Logger::~Logger( void )
{
Logger_data& logger_data = m_loggers_data[ m_name ];
std::wstring header;
if ( logger_data.enable && m_level >= logger_data.level )
{
switch ( m_level )
{
case ( Logger::Level::trace ) :
header = L"[Trace]";
break;
case ( Logger::Level::debug ) :
header = L"[Debug]";
break;
case ( Logger::Level::info ) :
header = L"[Info]";
break;
case ( Logger::Level::warning ) :
header = L"[Warning]";
break;
case ( Logger::Level::error ) :
header = L"[Error]";
break;
case ( Logger::Level::exception ) :
header = L"[Exception]";
break;
case ( Logger::Level::fatal ) :
header = L"[Fatal]";
break;
}
if ( m_name != L"" )
{
header += L"[";
header += m_name;
header += L"]";
}
header+= L": ";
if ( m_level <= Logger::Level::info )
std::wcout << header << m_logbuffer.str() << std::flush;
else if ( m_level >= Logger::Level::warning )
std::wcerr << header << m_logbuffer.str() << std::flush;
if ( logger_data.logfile )
if ( logger_data.logfile->is_open() && logger_data.logfile->good() )
*logger_data.logfile << header << m_logbuffer.str() << std::flush;
}
}
std::wostringstream& Logger::log( Level level )
{
m_level = level;
return ( m_logbuffer );
}
void Logger::enable( bool enable, const std::wstring& name /*= L"" */ )
{
m_loggers_data[ name ].enable = enable;
}
void Logger::set_level( Level level, const std::wstring& name /*= L"" */ )
{
m_loggers_data[ name ].level = level;
}
void Logger::set_logfile( const std::wstring& file_path, const std::wstring& name /*= L"" */ )
{
if ( m_loggers_data[ name ].logfile )
{
std::wofstream& logfile = *m_loggers_data[ name ].logfile;
logfile.open( file_path, std::ios::trunc | std::ios::out );
if ( logfile.is_open() && logfile.good() )
logfile.imbue( std::locale( logfile.getloc(), new ( std::codecvt_utf8_utf16< wchar_t > ) ) );
else
logfile.close();
}
}
} |
Constantes, globales et portée, des mots qui font rêver.
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Envoyé par RT222
A méditer: La solution la plus simple est toujours la moins compliquée
) une éventuelle perte de performances 
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