DtXmlFileIo.h

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/****************************************************************************** 
** Copyright (c) 2017 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 


#ifndef DtXmlFileIo_H_ 
#define DtXmlFileIo_H_ 

#include <makArchives/makArchives.h> 

#include <boost/archive/xml_iarchive.hpp>
#include <boost/archive/xml_oarchive.hpp>
#include <iostream>
#include <string>
#include <fstream>

#include <boost/iostreams/device/mapped_file.hpp>
#include <boost/iostreams/stream.hpp>

namespace makArchives 
{ 

   class DT_DLL_MAKARCHIVES DtXmlFileIo
   {

   public:

      template<typename T>
      static bool write(const std::string& filePath, const T& t, const std::string& tagName = "Record")
      {
         try
         {
            std::ofstream ofs(filePath.c_str());
            if(!ofs.is_open())
            {
               return false;
            }

            assert(ofs.good());
            boost::archive::xml_oarchive oa(ofs);
            oa << boost::serialization::make_nvp(tagName.c_str(), t);
            return true;
         }
         catch(...)
         {
            return false;
         }
      }

      template<typename T>
      static bool read(const std::string& filePath, T& t, const std::string& tagName = "Record")
      {
         try
         {
            boost::iostreams::stream<boost::iostreams::mapped_file_source> file_stream(filePath.c_str());

            if (file_stream.is_open())
            {
               boost::archive::xml_iarchive ia(file_stream);

               ia >> boost::serialization::make_nvp(tagName.c_str(), t);
               return true;
            }
            else
            {
               return false;
            }
         }
         catch( boost::archive::archive_exception& ex )
         {
            std::cerr << "Archive Exception during deserializing:" << filePath << std::endl;
             std::cerr << ex.what() << std::endl;
             return false;
         }
         catch(...)
         {
            return false;
         }
      }


   private:

      DtXmlFileIo();

   };

} 

#endif