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/*
* Copyright © 2004 Ondra Kamenik
* Copyright © 2019 Dynare Team
*
* This file is part of Dynare.
*
* Dynare is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Dynare 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Dynare. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef FACTORY_H
#define FACTORY_H
#include <random>
#include <memory>
#include "symmetry.hh"
#include "int_sequence.hh"
#include "twod_matrix.hh"
#include "equivalence.hh"
#include "rfs_tensor.hh"
#include "t_container.hh"
class Factory
{
std::mt19937 mtgen;
std::uniform_real_distribution<> dis;
void init(const Symmetry &s, const IntSequence &nvs);
void init(int dim, int nv);
void fillMatrix(TwoDMatrix &m);
public:
double get();
// This can be used with UGSTensor, FGSTensor
template<class _Ttype>
std::unique_ptr<_Ttype>
make(int r, const Symmetry &s, const IntSequence &nvs)
{
auto res = std::make_unique<_Ttype>(r, TensorDimens(s, nvs));
init(s, nvs);
fillMatrix(*res);
return res;
}
// This can be used with FFSTensor, UFSTensor, FRTensor, URTensor
template<class _Ttype>
std::unique_ptr<_Ttype>
make(int r, int nv, int dim)
{
auto res = std::make_unique<_Ttype>(r, nv, dim);
init(dim, nv);
fillMatrix(*res);
return res;
}
template<class _Ttype, class _Ctype>
_Ctype
makeCont(int r, const IntSequence &nvs, int maxdim)
{
int symnum = nvs.size();
_Ctype res(symnum);
for (int dim = 1; dim <= maxdim; dim++)
if (symnum == 1)
// Full symmetry
res.insert(make<_Ttype>(r, Symmetry{dim}, nvs));
else
// General symmetry
for (int i = 0; i <= dim; i++)
res.insert(make<_Ttype>(r, Symmetry{i, dim-i}, nvs));
return res;
}
template<class _Ttype, class _Ptype>
_Ptype
makePoly(int r, int nv, int maxdim)
{
_Ptype p(r, nv);
for (int d = 1; d <= maxdim; d++)
p.insert(make<_Ttype>(r, nv, d));
return p;
}
Vector makeVector(int n);
};
#endif
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