log.cpp

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/***************************************************************************
 *   Copyright (C) 2008 by Kutumov Alexey                                  *
 *   ru.pixel@gmail.com                                                    *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
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 ***************************************************************************/

#include "gpucalc/log.h"
#include "gpucalc/string_util.h"

#include <iostream>
#include <iomanip>

namespace gpucalc
{
 Log::Log(const std::string & LogName, unsigned int LogClassNameAlignment, unsigned int LogObjectNameAlignment,
  bool DebugOutput, bool SuppressFileOutput, bool SuppressObjectInfo):
  Object(_LogClassName, LogName), mLogLevel(LL_Normal), mDebugOutput(DebugOutput), mSuppressFile(SuppressFileOutput),
  mSuppressObjectInfo(SuppressObjectInfo), mTimeOutput(true), mLogClassNameAlignment(LogClassNameAlignment), mLogObjectNameAlignment(LogObjectNameAlignment)
 {
  if (!mSuppressFile)
  {
   mfpLog.open(LogName.c_str());
  }
 }


 Log::~Log()
 {
  if (!mSuppressFile)
  {
   mfpLog.close();
  }
 }


 void Log::logMessage(const std::string & message, LogMessageLevel lml, bool maskDebug)
 {
  for (mtLogListener::iterator i = mListeners.begin(); i != mListeners.end(); ++i)
  {
   (*i)->MessageLogged(message, lml, maskDebug, this->getObjectName());
  }
  if (mDebugOutput && !maskDebug)
  {
   std::cerr << message << std::endl;
  }
  if (!mSuppressFile)
  {
   struct tm *pTime;
   time_t ctTime;
   time(&ctTime);
   pTime = localtime(&ctTime);

   if (mTimeOutput)
   {
    mfpLog << std::setw(2) << std::setfill('0') << pTime->tm_hour
     << ":" << std::setw(2) << std::setfill('0') << pTime->tm_min
     << ":" << std::setw(2) << std::setfill('0') << pTime->tm_sec
     << ": ";
   }
   mfpLog  << message << std::endl;
    
   mfpLog.flush();
  }
 }


 void Log::logMessage(const Object & object, const std::string & Message,
  LogMessageLevel lml, bool maskDebug)
 {
  if ((mLogLevel + lml) >= Log_Threshold)
  {
   if (!mSuppressObjectInfo)
   {
    logMessage(
                        auxillary::StringUtil::getFixedString(object.getClassName(), mLogClassNameAlignment, "", ":") +
                        auxillary::StringUtil::getFixedString(object.getObjectName(), mLogObjectNameAlignment, "", ":") +
                        Message, lml, maskDebug
                          );
   }
   else
   {
    logMessage(Message, lml, maskDebug);
   }
  }
 }

 
 void Log::logMessage(const Object * object, const std::string & Message,
  LogMessageLevel lml, bool maskDebug)
 {
  assert(object && "Cannot log noninitialized object!!!");
  logMessage(*object, Message, lml, maskDebug);
 }


 void Log::addListener(LogListener * listener)
 {
  mListeners.push_back(listener);
 }


 void Log::removeListener(LogListener * listener)
 {
  mListeners.erase(std::find(mListeners.begin(), mListeners.end(), listener));
 }
}