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//# PycRecord.cc: Class to convert a Record to/from Python
//# Copyright (C) 2006
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: casa-feedback@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
#include <casacore/python/Converters/PycRecord.h>
#include <casacore/python/Converters/PycValueHolder.h>
#include <casacore/casa/Utilities/Assert.h>
#include <boost/python/object.hpp>
namespace casacore { namespace python {
boost::python::dict casa_record_to_python::makeobject
(Record const& rec)
{
boost::python::dict d;
// Copy over the record field by field
uInt nf = rec.nfields();
for (uInt i=0; i<nf; i++) {
d.setdefault ((std::string const&)(rec.name(i)),
casa_value_to_python::makeobject(rec.asValueHolder(i)));
}
return d;
}
void* casa_record_from_python::convertible(PyObject* obj_ptr)
{
if (!(PyDict_Check(obj_ptr))) return 0;
return obj_ptr;
}
void casa_record_from_python::construct
(PyObject* obj_ptr,
boost::python::converter::rvalue_from_python_stage1_data* data)
{
using namespace boost::python;
void* storage = ((converter::rvalue_from_python_storage<Record>*)
data)->storage.bytes;
new (storage) Record();
data->convertible = storage;
Record& result = *((Record*)storage);
result = makeRecord (obj_ptr);
}
Record casa_record_from_python::makeRecord (PyObject* obj_ptr)
{
using namespace boost::python;
AlwaysAssert (PyDict_Check(obj_ptr), AipsError);
dict d = extract<dict>(obj_ptr)();
list keys = d.keys();
Record result;
handle<> obj_iter(PyObject_GetIter(keys.ptr()));
std::size_t i=0;
for(;;i++) {
handle<> py_elem_hdl(allow_null(PyIter_Next(obj_iter.get())));
if (PyErr_Occurred()) throw_error_already_set();
if (!py_elem_hdl.get()) break; // end of iteration
object py_elem_key(py_elem_hdl);
result.defineFromValueHolder (extract<String>(py_elem_key)(),
casa_value_from_python::makeValueHolder(d.get(py_elem_key).ptr()));
}
return result;
}
bool convert_casa_record::_done = false;
void convert_casa_record::reg()
{
if (! _done) {
_done = true;
boost::python::to_python_converter<Record, casa_record_to_python>();
casa_record_from_python();
}
}
}}
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