libdiffpy/src/diffpy/srreal/PythonStructureAdapter.cpp at develop · cfarrow/libdiffpy · GitHub

Repository navigation

History

/*****************************************************************************

* diffpy.srreal by DANSE Diffraction group

* Simon J. L. Billinge

* File coded by: Pavol Juhas

* See AUTHORS.txt for a list of people who contributed.

* See LICENSE.txt for license information.

******************************************************************************

* createStructureAdapter - a factory for creating StructureAdapter

* for recognized Python objects

*****************************************************************************/

#include <diffpy/srreal/PythonStructureAdapter.hpp>

#include <stdexcept>

#include <sstream>

#include <string>

#include <set>

using namespace boost;

using namespace std;

namespace diffpy {

namespace srreal {

// Local Helpers -------------------------------------------------------------

namespace {

typedef set<PythonStructureAdapterFactory> PSAFactorySet;

PSAFactorySet& getPSAFactorySet()

{

static PSAFactorySet factories;

return factories;

}

} // namespace

// Routines ------------------------------------------------------------------

StructureAdapterPtr createStructureAdapter(const boost::python::object stru)

{

StructureAdapterPtr rv;

// First check if stru is already a wrapped StructureAdapterPtr

python::extract<StructureAdapterPtr> getadapter(stru);

if (getadapter.check())

{

rv = getadapter();

if (rv.get()) return rv;

}

// Loop over all registered factories. They should return

// a new StructureAdapter instance or NULL on failure.

PSAFactorySet::iterator factory = getPSAFactorySet().begin();

PSAFactorySet::iterator last = getPSAFactorySet().end();

for (; factory != last; ++factory)

{

rv = (*factory)(stru);

if (rv.get()) return rv;

}

// We get here only if nothing worked.

python::object emsg = "Cannot create structure adapter for %r." %

python::make_tuple(stru);

PyErr_SetObject(PyExc_TypeError, emsg.ptr());

python::throw_error_already_set();

// This should be never reached

return rv;

}

// Factory functions registration --------------------------------------------

bool registerPythonStructureAdapterFactory(PythonStructureAdapterFactory fctr)

{

getPSAFactorySet().insert(fctr);

return true;

}

} // namespace srreal

} // namespace diffpy

// End of file

libdiffpy/src/diffpy/srreal/PythonStructureAdapter.cpp at develop · cfarrow/libdiffpy · GitHub

Repository navigation

Expand file tree

Breadcrumbs

PythonStructureAdapter.cpp

Latest commit

History

Breadcrumbs

PythonStructureAdapter.cpp

File metadata and controls