KeosLogger.cpp

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/*
 * This source file is part of KEOS (Free 3D Engine)
 * For the latest info, see http://www.keosengine.org/
 * E-mails : thierry.vouriot@keosengine.org, yeri@keosengine.org
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 2 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA, or go to
 * http://www.gnu.org/copyleft/lesser.txt.
 *
 */

#include "KeosLogger.h"
#include "KeosException.h"

namespace Keos
{

  //=======================================================================
  // ILogger implementation
  //=======================================================================

  ILogger* ILogger::ms_pInstance = NULL;

  //-----------------------------------------------------------------------
  ILogger::~ILogger()
  {}

  //-----------------------------------------------------------------------
  void ILogger::SetLogger(ILogger* pLogger)
  {
    Destroy();
    ms_pInstance = pLogger;
  }

  //-----------------------------------------------------------------------
  void ILogger::Destroy()
  {
    delete ms_pInstance;
    ms_pInstance = NULL;
  }

  //-----------------------------------------------------------------------
  void ILogger::Log(const char* strFormat, ...)
  {
    Assert(ms_pInstance != NULL);

    // Format message in a string
    char sBuffer[512];
    va_list Params;
    va_start(Params, strFormat);
    vsprintf(sBuffer, strFormat, Params);
    va_end(Params);

    // Add "\n"
    strcat(sBuffer, "\n");

    // Log
    ms_pInstance->Write(sBuffer);
  }

  //-----------------------------------------------------------------------
  String ILogger::CurrentDate() const
  {
    // Recovery and formatting of date
    char sTime[24];
    time_t CurrentTime = time(NULL);
    strftime(sTime, sizeof(sTime), "%d/%m/%Y", localtime(&CurrentTime));

    return sTime;
  }

  //-----------------------------------------------------------------------
  String ILogger::CurrentTime() const
  {
    // Recovery and formatting of time
    char sTime[24];
    time_t CurrentTime = time(NULL);
    strftime(sTime, sizeof(sTime), "%H:%M:%S", localtime(&CurrentTime));

    return sTime;
  }


  //=======================================================================
  // CLoggerFile implementation
  //=======================================================================

  //-----------------------------------------------------------------------
  CLoggerFile::CLoggerFile(const String& strFilename) :
      m_File(strFilename.c_str())
  {
    // The file is open ?
    if (!m_File)
      LOADINGFAILED_EXCEPT(strFilename, "Impossible to write in file", "CLoggerFile::CLoggerFile");

    // Write header
    m_File << "=======================================================" << std::endl;
    m_File << " Keos::Engine v" << KEOS_VERSION_MAJOR << "." << KEOS_VERSION_MINOR <<
    "." << KEOS_VERSION_PATCH << " - Event log - " << CurrentDate() << " " << CurrentTime() << std::endl;
    m_File << "=======================================================" << std::endl << std::endl;
  }

  //-----------------------------------------------------------------------
  CLoggerFile::~CLoggerFile()
  {
    // Close file
    m_File << std::endl;
    m_File << "=============================================" << std::endl;
    m_File << " Keos::Engine closed at " << CurrentTime() << " - Goodbye ! " << std::endl;
    m_File << "=============================================" << std::endl;
  }

  //-----------------------------------------------------------------------
  void CLoggerFile::Write(const String& strMessage)
  {
    Assert(m_File.is_open());

    m_File << CurrentTime() << ": " << strMessage;

    printf("%s", strMessage.c_str());
  }

} // namespace Keos

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