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dumper_compute.hh
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/**
* @file dumper_compute.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Tue Sep 02 2014
* @date last modification: Fri Jul 24 2020
*
* @brief Field that map a function to another field
*
*
* @section LICENSE
*
* Copyright (©) 2014-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef AKANTU_DUMPER_COMPUTE_HH_
#define AKANTU_DUMPER_COMPUTE_HH_
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "dumper_field.hh"
#include "dumper_iohelper.hh"
#include "dumper_type_traits.hh"
/* -------------------------------------------------------------------------- */
#include <aka_iterators.hh>
/* -------------------------------------------------------------------------- */
#include <io_helper.hh>
/* -------------------------------------------------------------------------- */
#include <type_traits>
/* -------------------------------------------------------------------------- */
namespace akantu {
namespace dumpers {
/* ------------------------------------------------------------------------ */
class ComputeFunctorInterface {
public:
virtual ~ComputeFunctorInterface() = default;
virtual UInt getDim() = 0;
virtual UInt getNbComponent(UInt old_nb_comp) = 0;
};
/* ------------------------------------------------------------------------ */
template <typename return_type>
class ComputeFunctorOutput : public ComputeFunctorInterface {
public:
ComputeFunctorOutput() = default;
~ComputeFunctorOutput() override = default;
};
/* ------------------------------------------------------------------------ */
template <typename input_type, typename return_type>
class ComputeFunctor : public ComputeFunctorOutput<return_type> {
public:
ComputeFunctor() = default;
~ComputeFunctor() override = default;
virtual return_type func(const input_type & /*d*/,
Element /*global_index*/) {
AKANTU_TO_IMPLEMENT();
}
virtual return_type func(const input_type & /*d*/) {
AKANTU_TO_IMPLEMENT();
}
};
/* ------------------------------------------------------------------------ */
template <class EnumType>
class ComputeUIntFromEnum
: public ComputeFunctor<Vector<EnumType>, Vector<UInt>> {
public:
ComputeUIntFromEnum() = default;
inline Vector<UInt> func(const Vector<EnumType> & in) override {
Vector<UInt> out(in.size());
for (auto && data : zip(in, out)) {
std::get<1>(data) =
static_cast<std::underlying_type_t<EnumType>>(std::get<0>(data));
}
return out;
}
UInt getDim() override { return 1; };
UInt getNbComponent(UInt old_nb_comp) override { return old_nb_comp; };
};
/* ------------------------------------------------------------------------ */
template <typename SubFieldCompute, typename _return_type,
class support_type_ = typename SubFieldCompute::support_type>
class FieldCompute : public Field {
/* ---------------------------------------------------------------------- */
/* Typedefs */
/* ---------------------------------------------------------------------- */
public:
using return_type = _return_type;
using support_type = support_type_;
using sub_iterator = typename SubFieldCompute::iterator;
using sub_types = typename SubFieldCompute::types;
using sub_return_type = typename sub_types::return_type;
using data_type = typename return_type::value_type;
using functor_type = ComputeFunctor<sub_return_type, return_type>;
using types = TypeTraits<data_type, return_type, Array<data_type>>;
public:
class iterator {
public:
iterator(const sub_iterator & it, functor_type & func)
: it(it), func(func) {}
bool operator!=(const iterator & it) const { return it.it != this->it; }
iterator operator++() {
++this->it;
return *this;
}
return_type operator*() { return func.func(*it); }
/// Do to IOHelper the needs it...
UInt element_type() { return this->it.element_type(); }
protected:
sub_iterator it;
functor_type & func;
};
/* ---------------------------------------------------------------------- */
/* Constructors/Destructors */
/* ---------------------------------------------------------------------- */
public:
FieldCompute(SubFieldCompute & cont,
std::unique_ptr<ComputeFunctorInterface> func)
: sub_field(aka::as_type<SubFieldCompute>(cont.shared_from_this())),
func(aka::as_type<functor_type>(func.release())) {
this->checkHomogeneity();
};
void registerToDumper(const std::string & id,
iohelper::Dumper & dumper) override {
dumper.addNodeDataField(id, *this);
}
/* ---------------------------------------------------------------------- */
/* Class Members */
/* ---------------------------------------------------------------------- */
public:
iterator begin() { return iterator(sub_field->begin(), *func); }
iterator end() { return iterator(sub_field->end(), *func); }
UInt getDim() { return func->getDim(); }
UInt size() {
throw;
// return Functor::size();
return 0;
}
void checkHomogeneity() override { this->homogeneous = true; };
iohelper::DataType getDataType() {
return iohelper::getDataType<data_type>();
}
/// for connection to a FieldCompute
inline std::shared_ptr<Field> connect(FieldComputeProxy & proxy) override;
/// for connection to a FieldCompute
std::unique_ptr<ComputeFunctorInterface>
connect(HomogenizerProxy & proxy) override;
/* ---------------------------------------------------------------------- */
/* Class Members */
/* ---------------------------------------------------------------------- */
public:
std::shared_ptr<SubFieldCompute> sub_field;
std::unique_ptr<functor_type> func;
};
/* ------------------------------------------------------------------------ */
template <typename SubFieldCompute, typename _return_type>
class FieldCompute<SubFieldCompute, _return_type, Element> : public Field {
/* ---------------------------------------------------------------------- */
/* Typedefs */
/* ---------------------------------------------------------------------- */
public:
using return_type = _return_type;
using support_type = Element;
using sub_iterator = typename SubFieldCompute::iterator;
using sub_types = typename SubFieldCompute::types;
using sub_return_type = typename sub_types::return_type;
using data_type = typename sub_types::data_type;
using functor_type = ComputeFunctor<sub_return_type, return_type>;
using types =
TypeTraits<data_type, return_type, ElementTypeMapArray<data_type>>;
public:
class iterator {
public:
iterator(const sub_iterator & it, functor_type & func)
: it(it), func(func) {}
bool operator!=(const iterator & it) const { return it.it != this->it; }
iterator operator++() {
++this->it;
return *this;
}
UInt currentGlobalIndex() { return this->it.currentGlobalIndex(); }
return_type operator*() { return func.func(*it, it.getCurrentElement()); }
Element getCurrentElement() { return this->it.getCurrentElement(); }
UInt element_type() { return this->it.element_type(); }
protected:
sub_iterator it;
functor_type & func;
};
/* ---------------------------------------------------------------------- */
/* Constructors/Destructors */
/* ---------------------------------------------------------------------- */
public:
FieldCompute(SubFieldCompute & cont,
std::unique_ptr<ComputeFunctorInterface> func)
: sub_field(aka::as_type<SubFieldCompute>(cont.shared_from_this())),
func(aka::as_type<functor_type>(func.release())) {
this->checkHomogeneity();
};
~FieldCompute() override = default;
void registerToDumper(const std::string & id,
iohelper::Dumper & dumper) override {
dumper.addElemDataField(id, *this);
}
/* ---------------------------------------------------------------------- */
/* Class Members */
/* ---------------------------------------------------------------------- */
public:
iterator begin() { return iterator(sub_field->begin(), *func); }
iterator end() { return iterator(sub_field->end(), *func); }
UInt getDim() { return func->getDim(); }
UInt size() {
throw;
// return Functor::size();
return 0;
}
void checkHomogeneity() override { this->homogeneous = true; };
template <class T1 = data_type,
std::enable_if_t<std::is_enum<T1>::value> * = nullptr>
iohelper::DataType getDataType() {
return iohelper::getDataType<UInt>();
}
template <class T1 = data_type,
std::enable_if_t<not std::is_enum<T1>::value> * = nullptr>
iohelper::DataType getDataType() {
return iohelper::getDataType<data_type>();
}
/// get the number of components of the hosted field
ElementTypeMap<UInt>
getNbComponents(UInt dim = _all_dimensions,
GhostType ghost_type = _not_ghost,
ElementKind kind = _ek_not_defined) override {
ElementTypeMap<UInt> nb_components;
const auto & old_nb_components =
this->sub_field->getNbComponents(dim, ghost_type, kind);
for (auto type : old_nb_components.elementTypes(dim, ghost_type, kind)) {
UInt nb_comp = old_nb_components(type, ghost_type);
nb_components(type, ghost_type) = func->getNbComponent(nb_comp);
}
return nb_components;
};
/// for connection to a FieldCompute
inline std::shared_ptr<Field> connect(FieldComputeProxy & proxy) override;
/// for connection to a FieldCompute
std::unique_ptr<ComputeFunctorInterface>
connect(HomogenizerProxy & proxy) override;
/* ---------------------------------------------------------------------- */
/* Class Members */
/* ---------------------------------------------------------------------- */
public:
std::shared_ptr<SubFieldCompute> sub_field;
std::unique_ptr<functor_type> func;
};
/* ------------------------------------------------------------------------ */
class FieldComputeProxy {
/* ---------------------------------------------------------------------- */
/* Constructors/Destructors */
/* ---------------------------------------------------------------------- */
public:
FieldComputeProxy(std::unique_ptr<ComputeFunctorInterface> func)
: func(std::move(func)){};
inline static std::shared_ptr<Field>
createFieldCompute(std::shared_ptr<Field> & field,
std::unique_ptr<ComputeFunctorInterface> func) {
FieldComputeProxy compute_proxy(std::move(func));
return field->connect(compute_proxy);
}
template <typename T> std::shared_ptr<Field> connectToField(T * ptr) {
if (aka::is_of_type<ComputeFunctorOutput<Vector<Real>>>(func)) {
return this->connectToFunctor<Vector<Real>>(ptr);
}
if (aka::is_of_type<ComputeFunctorOutput<Vector<UInt>>>(func)) {
return this->connectToFunctor<Vector<UInt>>(ptr);
}
if (aka::is_of_type<ComputeFunctorOutput<Matrix<UInt>>>(func)) {
return this->connectToFunctor<Matrix<UInt>>(ptr);
}
if (aka::is_of_type<ComputeFunctorOutput<Matrix<Real>>>(func)) {
return this->connectToFunctor<Matrix<Real>>(ptr);
}
throw;
}
template <typename output, typename T>
std::shared_ptr<Field> connectToFunctor(T * ptr) {
return std::make_shared<FieldCompute<T, output>>(*ptr, std::move(func));
}
template <typename output, typename SubFieldCompute, typename return_type1,
typename return_type2>
std::shared_ptr<Field>
connectToFunctor(FieldCompute<FieldCompute<SubFieldCompute, return_type1>,
return_type2> * /*ptr*/) {
throw; // return new FieldCompute<T,output>(*ptr,func);
return nullptr;
}
template <typename output, typename SubFieldCompute, typename return_type1,
typename return_type2, typename return_type3,
typename return_type4>
std::shared_ptr<Field> connectToFunctor(
FieldCompute<FieldCompute<FieldCompute<FieldCompute<SubFieldCompute,
return_type1>,
return_type2>,
return_type3>,
return_type4> * /*ptr*/) {
throw; // return new FieldCompute<T,output>(*ptr,func);
return nullptr;
}
/* ---------------------------------------------------------------------- */
/* Class Members */
/* ---------------------------------------------------------------------- */
public:
std::unique_ptr<ComputeFunctorInterface> func;
};
/* ------------------------------------------------------------------------ */
/// for connection to a FieldCompute
template <typename SubFieldCompute, typename return_type,
typename support_type_>
inline std::shared_ptr<Field>
FieldCompute<SubFieldCompute, return_type, support_type_>::connect(
FieldComputeProxy & proxy) {
return proxy.connectToField(this);
}
template <typename SubFieldCompute, typename return_type>
inline std::shared_ptr<Field>
FieldCompute<SubFieldCompute, return_type, Element>::connect(
FieldComputeProxy & proxy) {
return proxy.connectToField(this);
}
/* ------------------------------------------------------------------------ */
} // namespace dumpers
} // namespace akantu
#endif /* AKANTU_DUMPER_COMPUTE_HH_ */

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