backuprestore.hh

#ifndef DUNE_GRID_ALUGRID_BACKUPRESTORE_HH
#define DUNE_GRID_ALUGRID_BACKUPRESTORE_HH
 
//- system headers
#include <fstream>
 
//- Dune headers
#include <dune/alugrid/impl/macrofileheader.hh>
#include <dune/common/exceptions.hh>
#include <dune/grid/common/backuprestore.hh>
#include <dune/alugrid/common/declaration.hh>
 
namespace Dune
{
 
  template< int dim, int dimworld, ALUGridElementType elType, ALUGridRefinementType refineType, class Comm >
  struct BackupRestoreFacility< ALUGrid< dim, dimworld, elType, refineType, Comm > >
  {
    // type of grid
    typedef ALUGrid< dim, dimworld, elType, refineType, Comm > Grid;
    typedef ::ALUGrid:: MacroFileHeader           MacroFileHeaderType;
 
    // if zlib was found we use the zlib compressed binary output
    // otherwise binary output is used
    typedef typename MacroFileHeaderType::Format  MacroFileHeaderFormatType;
 
    static std::string createFilename( const std::string &path, const std::string &fileprefix )
    {
      std::string filename( path );
      if( fileprefix.size() > 0 )
      {
        filename += "/" + fileprefix ;
      }
      else if( filename[ filename.size() - 1 ] == char('/') )
      {
        filename += "/alugrid";
      }
      return filename;
    }
 
    static void backup ( const Grid &grid, const std::string &filename,
                         const MacroFileHeaderFormatType format = MacroFileHeaderType::defaultFormat )
    {
      std::ofstream file( filename.c_str() );
      if( file )
      {
        // call backup on grid
        backup( grid, file, format );
      }
      else
      {
        std::cerr << "ERROR: BackupRestoreFacility::backup: couldn't open file `" << filename << "'" << std::endl;
      }
    }
 
    static void backup ( const Grid &grid, std::ostream &stream,
                         const MacroFileHeaderFormatType format = MacroFileHeaderType::defaultFormat )
    {
      // call backup on grid
      grid.backup( stream, format );
    }
 
    static Grid *restore ( const std::string &filename )
    {
      // Problem here: how to pass boundary projections
      std::ifstream file( filename.c_str() );
      if( file )
      {
        return restore( file );
      }
      else
      {
        std::cerr << "ERROR: BackupRestoreFacility::restore: couldn't open file `" << filename << "'" << std::endl;
        return 0;
      }
    }
 
    static Grid *restore ( std::istream &stream )
    {
      // Problem here: how to pass boundary projections
      Grid* grid = new Grid();
      grid->restore( stream );
      return grid;
    }
  };
 
} // namespace Dune
 
#endif // #ifndef DUNE_GRID_ALUGRID_BACKUPRESTORE_HH