RasterFactory.cpp

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#include <openmodeller/env_io/RasterFactory.hh>
#include <openmodeller/MapFormat.hh>

#include <algorithm>
#include <string>
using std::string;

bool RasterFactory::_initiated;

/****************/
/*** instance ***/
RasterFactory& 
RasterFactory::instance()
{
  static RasterFactory _instance;

  if ( ! _initiated ) {

#ifdef TERRALIB_FOUND
_instance.registerDriver( "terralib", &TerralibRaster::CreateRasterCallback );
#endif

    _instance.registerDriver( "wcs", &WcsProxyRaster::CreateRasterCallback );

    _initiated = true;
  }

  return _instance;
}

/***********************/
/*** register driver ***/
bool 
RasterFactory::registerDriver( const string& driverId, CreateRasterCallback builder )
{
  return _drivers.insert( DriversMap::value_type( driverId, builder ) ).second;
}

/*************************/
/*** unregister driver ***/
bool 
RasterFactory::unregisterDriver( const string& driverId )
{
  return _drivers.erase( driverId ) != 0;
}

/**************/
/*** create ***/
Raster*
RasterFactory::create( const string& source, int categ )
{
  // Another Raster Lib
  int i = source.find( ">" );

  if ( i != -1 ) {

    string driver_id = source.substr( 0, i );

    DriversMap::const_iterator i = _drivers.find( driver_id );

    if ( i != _drivers.end() ) {

      Raster* r = (i->second)();
      r->createRaster( source, categ );
      return r;
    }
  }

  #ifdef CURL_FOUND
  // Check if name starts with http://, https:// or ftp:// 
  if ( source.size() > 6 ) {
  
    string lower_source;
    transform( source.begin(), source.end(), std::back_inserter(lower_source), ::tolower );

    if ( lower_source.compare( 0, 7, "http://" )  == 0 || 
         lower_source.compare( 0, 8, "https://" ) == 0 ||
         lower_source.compare( 0, 6, "ftp://" )   == 0 ) {

      Raster* r = new RemoteRaster();
      r->createRaster( source, categ );
      return r;
    }
  }
  #endif

  // Default: GDAL Raster Lib
  Raster* r = new GdalRaster();
  r->createRaster( source, categ );
  return r;
}


#ifdef MPI_FOUND
/**************/
/*** create ***/
Raster*
RasterFactory::create( const string& output_file_source, const string& source, const MapFormat& format )
{
  // Another Raster Lib
  int i = source.find( ">" );

  if ( i != -1 ) {

    string driver_id = source.substr( 0, i );

    DriversMap::const_iterator i = _drivers.find( driver_id );

    if ( i != _drivers.end() ) {

      Raster* r = (i->second)();
      r->createRaster( output_file_source, source, format );
      return r;
    }
  }

  #ifdef CURL_FOUND
  // Check if name starts with http://, https:// or ftp:// 
  if ( source.size() > 6 ) {
  
    string lower_source;
    transform( source.begin(), source.end(), std::back_inserter(lower_source), ::tolower );

    if ( lower_source.compare( 0, 7, "http://" )  == 0 || 
         lower_source.compare( 0, 8, "https://" ) == 0 ||
         lower_source.compare( 0, 6, "ftp://" )   == 0 ) {

      Raster* r = new RemoteRaster();
      r->createRaster( output_file_source, source, format );
      return r;
    }
  }
  #endif

  // Default: GDAL Raster Lib
  Raster* r = new GdalRaster();
  r->createRaster( output_file_source, source, format );
  return r;
}
#else
/**************/
/*** create ***/
Raster* 
RasterFactory::create( const string& source, const MapFormat& format )
{
  // Another Raster Lib
  int i = source.find( ">" );

  if ( i != -1 ) {

    string driver_id = source.substr( 0, i );

    DriversMap::const_iterator i = _drivers.find( driver_id );

    if ( i != _drivers.end() ) {

      Raster* r = (i->second)();
      r->createRaster( source, format );
      return r;
    }
  }

  #ifdef CURL_FOUND
  // Check if name starts with http://, https:// or ftp:// 
  if ( source.size() > 6 ) {
  
    string lower_source;
    transform( source.begin(), source.end(), std::back_inserter(lower_source), ::tolower );

    if ( lower_source.compare( 0, 7, "http://" )  == 0 || 
         lower_source.compare( 0, 8, "https://" ) == 0 ||
         lower_source.compare( 0, 6, "ftp://" )   == 0 ) {

      Raster* r = new RemoteRaster();
      r->createRaster( source, format );
      return r;
    }
  }
  #endif
  
  // Default: GDAL Raster Lib
  Raster* r = new GdalRaster();
  r->createRaster( source, format );
  return r;
}
#endif