QGIS/external/mdal/mdal_driver_manager.cpp
2019-01-14 12:32:36 +01:00

143 lines
3.4 KiB
C++

/*
MDAL - Mesh Data Abstraction Library (MIT License)
Copyright (C) 2018 Peter Petrik (zilolv at gmail dot com)
*/
#include "mdal_config.hpp"
#include "mdal_driver_manager.hpp"
#include "frmts/mdal_2dm.hpp"
#include "frmts/mdal_ascii_dat.hpp"
#include "frmts/mdal_binary_dat.hpp"
#include "mdal_utils.hpp"
#ifdef HAVE_HDF5
#include "frmts/mdal_xmdf.hpp"
#include "frmts/mdal_flo2d.hpp"
#include "frmts/mdal_hec2d.hpp"
#endif
#ifdef HAVE_GDAL
#include "frmts/mdal_gdal_grib.hpp"
#endif
#ifdef HAVE_NETCDF
#include "frmts/mdal_3di.hpp"
#include "frmts/mdal_sww.hpp"
#endif
#if defined HAVE_GDAL && defined HAVE_NETCDF
#include "frmts/mdal_gdal_netcdf.hpp"
#endif
std::unique_ptr<MDAL::Mesh> MDAL::DriverManager::load( const std::string &meshFile, MDAL_Status *status ) const
{
std::unique_ptr<MDAL::Mesh> mesh;
if ( !MDAL::fileExists( meshFile ) )
{
if ( status ) *status = MDAL_Status::Err_FileNotFound;
return std::unique_ptr<MDAL::Mesh>();
}
for ( const auto &driver : mDrivers )
{
if ( ( driver->hasCapability( Capability::ReadMesh ) ) &&
driver->canRead( meshFile ) )
{
std::unique_ptr<Driver> drv( driver->create() );
mesh = drv->load( meshFile, status );
if ( mesh ) // stop if he have the mesh
break;
}
}
if ( status && !mesh )
*status = MDAL_Status::Err_UnknownFormat;
return mesh;
}
void MDAL::DriverManager::loadDatasets( Mesh *mesh, const std::string &datasetFile, MDAL_Status *status ) const
{
if ( !MDAL::fileExists( datasetFile ) )
{
if ( status ) *status = MDAL_Status::Err_FileNotFound;
return;
}
if ( !mesh )
{
if ( status ) *status = MDAL_Status::Err_IncompatibleMesh;
return;
}
for ( const auto &driver : mDrivers )
{
if ( driver->hasCapability( Capability::ReadDatasets ) &&
driver->canRead( datasetFile ) )
{
std::unique_ptr<Driver> drv( driver->create() );
drv->load( datasetFile, mesh, status );
return;
}
}
if ( status )
*status = MDAL_Status::Err_UnknownFormat;
}
size_t MDAL::DriverManager::driversCount() const
{
return mDrivers.size();
}
std::shared_ptr<MDAL::Driver> MDAL::DriverManager::driver( size_t index ) const
{
if ( mDrivers.size() <= index )
{
return std::shared_ptr<MDAL::Driver>();
}
else
{
return mDrivers[index];
}
}
std::shared_ptr<MDAL::Driver> MDAL::DriverManager::driver( const std::string &driverName ) const
{
for ( const auto &dr : mDrivers )
{
if ( dr->name() == driverName )
return dr;
}
return std::shared_ptr<MDAL::Driver>();
}
MDAL::DriverManager::DriverManager()
{
// MESH DRIVERS
mDrivers.push_back( std::make_shared<MDAL::Driver2dm>() );
#ifdef HAVE_HDF5
mDrivers.push_back( std::make_shared<MDAL::DriverFlo2D>() );
mDrivers.push_back( std::make_shared<MDAL::DriverHec2D>() );
#endif
#ifdef HAVE_NETCDF
mDrivers.push_back( std::make_shared<MDAL::Driver3Di>() );
mDrivers.push_back( std::make_shared<MDAL::DriverSWW>() );
mDrivers.push_back( std::make_shared<MDAL::DriverGdalNetCDF>() );
#endif
#if defined HAVE_GDAL && defined HAVE_NETCDF
mDrivers.push_back( std::make_shared<MDAL::DriverGdalGrib>() );
#endif // HAVE_GDAL && HAVE_NETCDF
// DATASET DRIVERS
mDrivers.push_back( std::make_shared<MDAL::DriverAsciiDat>() );
mDrivers.push_back( std::make_shared<MDAL::DriverBinaryDat>() );
#ifdef HAVE_HDF5
mDrivers.push_back( std::make_shared<MDAL::DriverXmdf>() );
#endif
}