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parameter_registry_tmpl.hh
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/**
* @file parameter_registry_tmpl.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Thu Aug 09 2012
* @date last modification: Fri Mar 27 2015
*
* @brief implementation of the templated part of ParameterRegistry class and
* the derivated ones
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014, 2015 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/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "aka_error.hh"
#include "parameter_registry.hh"
#include "parser.hh"
/* -------------------------------------------------------------------------- */
#include <algorithm>
#include <string>
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_PARAMETER_REGISTRY_TMPL_HH__
#define __AKANTU_PARAMETER_REGISTRY_TMPL_HH__
namespace akantu {
namespace debug {
class ParameterException : public Exception {
public:
ParameterException(const std::string & name, const std::string & message)
: Exception(message), name(name) {}
const std::string & name;
};
class ParameterUnexistingException : public ParameterException {
public:
ParameterUnexistingException(const std::string & name,
const ParameterRegistry & registery)
: ParameterException(name, "Parameter " + name +
" does not exists in this scope") {
auto && params = registery.listParameters();
this->_info =
std::accumulate(params.begin(), params.end(),
this->_info + "\n Possible parameters are: ",
[](auto && str, auto && param) {
static auto first = true;
auto && ret = str + (first ? " " : ", ") + param;
first = false;
return ret;
});
}
};
class ParameterAccessRightException : public ParameterException {
public:
ParameterAccessRightException(const std::string & name,
const std::string & perm)
: ParameterException(name, "Parameter " + name + " is not " + perm) {}
};
class ParameterWrongTypeException : public ParameterException {
public:
ParameterWrongTypeException(const std::string & name,
const std::type_info & wrong_type,
const std::type_info & type)
: ParameterException(name, "Parameter " + name +
" type error, cannot convert " +
debug::demangle(type.name()) + " to " +
debug::demangle(wrong_type.name())) {}
};
} // namespace debug
/* -------------------------------------------------------------------------- */
template <typename T>
const ParameterTyped<T> & Parameter::getParameterTyped() const {
try {
const auto & tmp = dynamic_cast<const ParameterTyped<T> &>(*this);
return tmp;
} catch (std::bad_cast &) {
AKANTU_CUSTOM_EXCEPTION(
debug::ParameterWrongTypeException(name, typeid(T), this->type()));
}
}
/* -------------------------------------------------------------------------- */
template <typename T> ParameterTyped<T> & Parameter::getParameterTyped() {
try {
auto & tmp = dynamic_cast<ParameterTyped<T> &>(*this);
return tmp;
} catch (std::bad_cast &) {
AKANTU_CUSTOM_EXCEPTION(
debug::ParameterWrongTypeException(name, typeid(T), this->type()));
}
}
/* ------------------------------------------------------------------------ */
template <typename T, typename V> void Parameter::set(const V & value) {
if (!(isWritable()))
AKANTU_CUSTOM_EXCEPTION(
debug::ParameterAccessRightException(name, "writable"));
ParameterTyped<T> & typed_param = getParameterTyped<T>();
typed_param.setTyped(value);
}
/* ------------------------------------------------------------------------ */
inline void Parameter::setAuto(__attribute__((unused))
const ParserParameter & value) {
if (!(isParsable()))
AKANTU_CUSTOM_EXCEPTION(
debug::ParameterAccessRightException(name, "parsable"));
}
/* -------------------------------------------------------------------------- */
template <typename T> const T & Parameter::get() const {
if (!(isReadable()))
AKANTU_CUSTOM_EXCEPTION(
debug::ParameterAccessRightException(name, "readable"));
const ParameterTyped<T> & typed_param = getParameterTyped<T>();
return typed_param.getTyped();
}
/* -------------------------------------------------------------------------- */
template <typename T> T & Parameter::get() {
ParameterTyped<T> & typed_param = getParameterTyped<T>();
if (!(isReadable()) || !(this->isWritable()))
AKANTU_CUSTOM_EXCEPTION(
debug::ParameterAccessRightException(name, "accessible"));
return typed_param.getTyped();
}
/* -------------------------------------------------------------------------- */
template <typename T> inline Parameter::operator T() const {
return this->get<T>();
}
/* -------------------------------------------------------------------------- */
template <typename T>
ParameterTyped<T>::ParameterTyped(std::string name, std::string description,
ParameterAccessType param_type, T & param)
: Parameter(name, description, param_type), param(param) {}
/* -------------------------------------------------------------------------- */
template <typename T>
template <typename V>
void ParameterTyped<T>::setTyped(const V & value) {
param = value;
}
/* -------------------------------------------------------------------------- */
template <typename T>
inline void ParameterTyped<T>::setAuto(const ParserParameter & value) {
Parameter::setAuto(value);
param = static_cast<T>(value);
}
/* -------------------------------------------------------------------------- */
template <>
inline void
ParameterTyped<std::string>::setAuto(const ParserParameter & value) {
Parameter::setAuto(value);
param = value.getValue();
}
/* -------------------------------------------------------------------------- */
template <>
inline void
ParameterTyped<Vector<Real>>::setAuto(const ParserParameter & in_param) {
Parameter::setAuto(in_param);
Vector<Real> tmp = in_param;
for (UInt i = 0; i < param.size(); ++i) {
param(i) = tmp(i);
}
}
/* -------------------------------------------------------------------------- */
template <>
inline void
ParameterTyped<Matrix<Real>>::setAuto(const ParserParameter & in_param) {
Parameter::setAuto(in_param);
Matrix<Real> tmp = in_param;
for (UInt i = 0; i < param.rows(); ++i) {
for (UInt j = 0; j < param.cols(); ++j) {
param(i, j) = tmp(i, j);
}
}
}
/* -------------------------------------------------------------------------- */
template <typename T> const T & ParameterTyped<T>::getTyped() const {
return param;
}
/* -------------------------------------------------------------------------- */
template <typename T> T & ParameterTyped<T>::getTyped() { return param; }
/* -------------------------------------------------------------------------- */
template <typename T>
inline void ParameterTyped<T>::printself(std::ostream & stream) const {
Parameter::printself(stream);
stream << param << std::endl;
}
/* -------------------------------------------------------------------------- */
template <>
inline void ParameterTyped<bool>::printself(std::ostream & stream) const {
Parameter::printself(stream);
stream << std::boolalpha << param << std::endl;
}
/* -------------------------------------------------------------------------- */
template <typename T>
void ParameterRegistry::registerParam(std::string name, T & variable,
ParameterAccessType type,
const std::string & description) {
auto it = params.find(name);
if (it != params.end())
AKANTU_CUSTOM_EXCEPTION(debug::ParameterException(
name, "Parameter named " + name + " already registered."));
auto * param = new ParameterTyped<T>(name, description, type, variable);
params[name] = param;
}
/* -------------------------------------------------------------------------- */
template <typename T>
void ParameterRegistry::registerParam(std::string name, T & variable,
const T & default_value,
ParameterAccessType type,
const std::string & description) {
variable = default_value;
registerParam(name, variable, type, description);
}
/* -------------------------------------------------------------------------- */
template <typename T, typename V>
void ParameterRegistry::setMixed(const std::string & name, const V & value) {
auto it = params.find(name);
if (it == params.end()) {
if (consisder_sub) {
for (auto it = sub_registries.begin(); it != sub_registries.end(); ++it) {
it->second->setMixed<T>(name, value);
}
} else {
AKANTU_CUSTOM_EXCEPTION(debug::ParameterUnexistingException(name, *this));
}
} else {
Parameter & param = *(it->second);
param.set<T>(value);
}
}
/* -------------------------------------------------------------------------- */
template <typename T>
void ParameterRegistry::set(const std::string & name, const T & value) {
this->template setMixed<T>(name, value);
}
/* -------------------------------------------------------------------------- */
template <typename T> T & ParameterRegistry::get(const std::string & name) {
auto it = params.find(name);
if (it == params.end()) {
if (consisder_sub) {
for (auto it = sub_registries.begin(); it != sub_registries.end(); ++it) {
try {
return it->second->get<T>(name);
} catch (...) {
}
}
}
// nothing was found not even in sub registries
AKANTU_CUSTOM_EXCEPTION(debug::ParameterUnexistingException(name, *this));
}
Parameter & param = *(it->second);
return param.get<T>();
}
/* -------------------------------------------------------------------------- */
const Parameter & ParameterRegistry::get(const std::string & name) const {
auto it = params.find(name);
if (it == params.end()) {
if (consisder_sub) {
for (auto it = sub_registries.begin(); it != sub_registries.end(); ++it) {
try {
return it->second->get(name);
} catch (...) {
}
}
}
// nothing was found not even in sub registries
AKANTU_CUSTOM_EXCEPTION(debug::ParameterUnexistingException(name, *this));
}
Parameter & param = *(it->second);
return param;
}
/* -------------------------------------------------------------------------- */
namespace {
namespace details {
template <class T, class R, class Enable = void> struct CastHelper {
static R convert(const T &) { throw std::bad_cast(); }
};
template <class T, class R>
struct CastHelper<T, R,
std::enable_if_t<std::is_convertible<T, R>::value>> {
static R convert(const T & val) { return val; }
};
} // namespace details
} // namespace
template <typename T> inline ParameterTyped<T>::operator Real() const {
if (not isReadable())
AKANTU_CUSTOM_EXCEPTION(
debug::ParameterAccessRightException(name, "accessible"));
return details::CastHelper<T, Real>::convert(param);
}
} // namespace akantu
#endif /* __AKANTU_PARAMETER_REGISTRY_TMPL_HH__ */
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