/**
* @file Value.hpp
* @author The ARTIS Development Team
* See the AUTHORS or Authors.txt file
*/
/*
* ARTIS - the multimodeling and simulation environment
* This file is a part of the ARTIS environment
*
* Copyright (C) 2013-2018 ULCO http://www.univ-littoral.fr
*
* This program 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.
*
* This program 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 this program. If not, see .
*/
#ifndef COMMON_VALUE
#define COMMON_VALUE 1
#include
#include
#include
#include
#include
#include
namespace artis { namespace common {
class Value
{
public:
Value() : _content(nullptr), _size(0)
{ }
template < typename T >
Value(T value)
{ assign(&value, sizeof(T), typeid(T).hash_code()); }
Value(void* content, size_t size)
{ assign(content, size, typeid(void*).hash_code()); }
Value(const char* value, unsigned int size)
{ assign(value, size * sizeof(char), typeid(char*).hash_code()); }
Value(const Value& value)
{
if (value._content) {
assign(value._content, value._size, value._type_id);
} else {
_content = nullptr;
_size = 0;
_type_id = 0;
}
}
virtual ~Value()
{ if (_content) delete _content; }
bool empty() const
{ return _content == nullptr; }
template < typename T >
void get_content(T& value) const
{
assert(_type_id == typeid(T).hash_code());
value = *(T*)(_content);
}
template < typename Z >
bool is_type() const
{ return _type_id == typeid(Z).hash_code(); }
void operator=(const Value& value)
{
if (_content) {
delete _content;
}
if (value._content) {
assign(value._content, value._size, value._type_id);
} else {
_content = nullptr;
_size = 0;
_type_id = 0;
}
}
std::string to_string() const
{
if (is_type < double >()) {
double v;
get_content(v);
return std::to_string(v);
} else if (is_type < int >()) {
int v;
get_content(v);
return std::to_string(v);
} else if (is_type < bool >()) {
bool v;
get_content(v);
return v ? "true" : "false";
} if (is_type < std::vector < double > >()) {
std::vector < double > v;
get_content(v);
return "";
} else if (is_type < std::vector < int > >()) {
std::vector < int > v;
get_content(v);
return "";
} else if (is_type < std::vector < bool > >()) {
std::vector < bool > v;
get_content(v);
return "";
} else {
return "";
}
}
private:
void assign(const void* content, size_t size, size_t type_id)
{
_content = new char[size];
std::memcpy(_content, content, size);
_size = size;
_type_id = type_id;
}
friend class boost::serialization::access;
template
void serialize(Archive & ar, const unsigned int version)
{
(void) version;
ar & _size;
if (Archive::is_loading::value) {
assert(_content == nullptr);
_content = new char[_size];
}
ar & boost::serialization::make_array < char >(_content, _size);
ar & _type_id;
}
char* _content;
size_t _size;
size_t _type_id;
};
} } // namespace artis common
#endif