/usr/include/mapnik/factory.hpp is in libmapnik2-dev 2.0.0+ds1-3build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | /*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2006 Artem Pavlenko
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
//$Id: factory.hpp 39 2005-04-10 20:39:53Z pavlenko $
#ifndef FACTORY_HPP
#define FACTORY_HPP
// mapnik
#include <mapnik/utils.hpp>
// stl
#include <stdexcept>
#include <map>
namespace mapnik {
template <typename key_type,
typename product_type>
class default_factory_error
{
public:
struct factory_exception : public std::exception
{
const char* what() const throw()
{
return "uknown object type";
}
};
static product_type* on_unknown_type(const key_type&)
{
return 0;
}
};
template
<
typename product_type,
typename key_type,
typename product_creator=product_type* (*)(),
template <typename,typename> class factory_error_policy=default_factory_error
>
class factory : public singleton<factory <product_type,
key_type,
product_creator,factory_error_policy> >,
factory_error_policy <key_type,product_type>
{
private:
typedef std::map<key_type,product_creator> product_map;
product_map map_;
public:
bool register_product(const key_type& key,product_creator creator)
{
return map_.insert(typename product_map::value_type(key,creator)).second;
}
bool unregister_product(const key_type& key)
{
return map_.erase(key)==1;
}
product_type* create_object(const key_type& key,const std::string& file)
{
typename product_map::const_iterator pos=map_.find(key);
if (pos!=map_.end())
{
return (pos->second)(file);
}
return factory_error_policy<key_type,product_type>::on_unknown_type(key);
}
};
}
#endif //FACTORY_HPP
|