Logging

//.H
#pragma once
#include <vector>
#include <string>
#include <fstream>
#include <boost/date_time/posix_time/posix_time.hpp>

using namespace std;

class Log
{
public:
    Log() { }
    ~Log() { Save(); Close(); delete File; }
    bool SetUp(wstring fileName);

    void Say(wstring message);
    void SayLn(wstring message) { Say(message + L"\n"); }

    void Save();
    void Close();

private:
    wstring Buffer;
    wofstream* File;
};

wstring static FormatTime(boost::posix_time::ptime now)
{
    using namespace boost::posix_time;
    static std::locale loc(std::wcout.getloc(),
        new wtime_facet(L"%Y%m%d_%H%M%S"));

    std::basic_stringstream<wchar_t> wss;
    wss.imbue(loc);
    wss << now;
    return wss.str();
}

wstring static formLogNumber()
{
    using namespace boost::posix_time;
    return FormatTime(second_clock::universal_time());
}


//.CPP
#include "logging.h"


bool Log::SetUp(wstring fileName)
{
    try
    {
        File = new wofstream(fileName);
    }
    catch (exception ex)
    {
#ifdef DEBUG
        throw ex;
#endif
        return false;
    }
    return true;
}

void Log::Close()
{
    if (!File) return;
    if (Buffer.length() > 0)
        Save();
    File->close();
}

void Log::Save()
{
    File->write(Buffer.data(), Buffer.length());
    File->flush();
    Buffer = wstring(L"");
}

void Log::Say(wstring message)
{
    Buffer += message;
    if (Buffer.length() > 8192)
        Save();
}