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/**
\file pyfunc_obj.hpp
\brief function object wrappers for python functions
\author Junhua Gu
*/
#ifndef PYFUNC_OBJ_HPP
#define PYFUNC_OBJ_HPP
#include <boost/python.hpp>
#include <core/optimizer.hpp>
#include <core/opt_traits.hpp>
namespace opt_utilities
{
template <typename Ty,typename Tx>
class pyfunc_obj
:public func_obj<Ty,Tx>
{
private:
boost::python::object pyfunc;
public:
pyfunc_obj()
{
if(!Py_IsInitialized())
{
Py_Initialize();
}
}
pyfunc_obj(const pyfunc_obj& rhs)
:pyfunc(rhs.pyfunc)
{}
pyfunc_obj& operator=(const pyfunc_obj& rhs)
{
pyfunc=rhs.pyfunc;
}
~pyfunc_obj()
{}
public:
void attach(const std::string module_name,
const std::string func_name)
{
boost::python::object mod(boost::python::import(module_name.c_str()));
pyfunc=mod.attr(func_name.c_str());
}
private:
func_obj<Ty,Tx>* do_clone()const
{
return new pyfunc_obj(*this);
}
void do_destroy()
{
delete this;
}
Ty do_eval(const Tx& x)
{
boost::python::list args;
for(size_t i=0;i<get_size(x);++i)
{
args.append(get_element(x,i));
}
return boost::python::extract<Ty>(pyfunc(args));
}
};
}
#endif
//EOF
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