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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2017 by The University of Queensland //
// Centre for Geoscience Computing //
// http://earth.uq.edu.au/centre-geoscience-computing //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.apache.org/licenses/LICENSE-2.0 //
// //
/////////////////////////////////////////////////////////////
#include <boost/mpl/placeholders.hpp>
#include "Python/BoostPythonUtil/Util.h"
#include "Python/BoostPythonUtil/PythonIterIterator.h"
#include <stdexcept>
using namespace boost::mpl::placeholders;
namespace esys
{
namespace lsm
{
template <class T>
struct Wrap
{
};
template <class WrappedT>
class PtrWrap
{
public:
PtrWrap(WrappedT &t) : m_p(&t)
{
}
template <typename T>
void operator()(Wrap<T> wrappedT)
{
(*m_p)(wrappedT);
}
private:
WrappedT *m_p;
};
class ExtractIndexer
{
public:
ExtractIndexer(boost::python::object pyOb)
: m_currIndex(-1),
m_extractIndex(-1),
m_pyOb(pyOb)
{
}
int getExtractIndex() const
{
return m_extractIndex;
}
template <class T>
void operator()(Wrap<T>)
{
++m_currIndex;
if (m_extractIndex < 0)
{
boost::python::extract<T &> extractor(m_pyOb);
if (extractor.check())
{
m_extractIndex = m_currIndex;
}
}
}
private:
int m_currIndex;
int m_extractIndex;
boost::python::object m_pyOb;
};
typedef bpu::PythonIterIterator<boost::python::object> PyObjectIterator;
typedef std::vector<boost::python::list> PyListVector;
template <class TmplLsmParticle>
class LmAdder
{
public:
LmAdder(CLatticeMaster &lm, PyListVector &pyListVector)
: m_currIndex(-1),
m_pLm(&lm),
m_pPyListVector(&pyListVector)
{
}
template <class T>
void operator()(Wrap<T>)
{
++(this->m_currIndex);
typedef bpu::PythonIterIterator<T &> TRefIterator;
TRefIterator it((*m_pPyListVector)[m_currIndex]);
this->m_pLm->template addParticles<TRefIterator,TmplLsmParticle>(it);
}
private:
int m_currIndex;
CLatticeMaster *m_pLm;
PyListVector *m_pPyListVector;
};
template <class TmplMplVector, class TmplLsmParticle>
void LmParticleAdder<TmplMplVector,TmplLsmParticle>::addParticles(
boost::python::object &iterable,
CLatticeMaster &lm
)
{
PyObjectIterator it(iterable);
const size_t numTypes = boost::mpl::size<MplVector>::type::value;
PyListVector pyListVector;
pyListVector.reserve(numTypes);
for (size_t i = 0; i < numTypes; i++)
{
pyListVector.push_back(boost::python::list());
}
while (it.hasNext())
{
boost::python::object pyOb = it.next();
ExtractIndexer extractIndex(pyOb);
boost::mpl::for_each<MplVector, Wrap<boost::mpl::placeholders::_1> >(
PtrWrap<ExtractIndexer>(extractIndex)
);
if (extractIndex.getExtractIndex() >= 0)
{
pyListVector[extractIndex.getExtractIndex()].append(pyOb);
}
else
{
throw std::runtime_error(
boost::python::extract<std::string>(
std::string("Could not extract C++ type from python object:")
+
boost::python::str(pyOb)
)
);
}
}
boost::mpl::for_each<MplVector, Wrap<boost::mpl::placeholders::_1> >(LmAdder<LsmParticle>(lm, pyListVector));
}
}
}
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