mapnik/include/mapnik/datasource_cache.hpp
2013-03-22 19:47:57 -07:00

65 lines
2 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 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
*
*****************************************************************************/
#ifndef MAPNIK_DATASOURCE_CACHE_HPP
#define MAPNIK_DATASOURCE_CACHE_HPP
// mapnik
#include <mapnik/utils.hpp>
#include <mapnik/params.hpp>
#include <mapnik/datasource.hpp>
#include <mapnik/noncopyable.hpp>
// boost
#include <boost/shared_ptr.hpp>
// stl
#include <map>
struct lt__handle;
namespace mapnik {
class PluginInfo;
class MAPNIK_DECL datasource_cache
: public singleton<datasource_cache, CreateStatic>,
private mapnik::noncopyable
{
friend class CreateStatic<datasource_cache>;
public:
std::vector<std::string> plugin_names();
std::string plugin_directories();
void register_datasources(std::string const& path);
bool register_datasource(std::string const& path);
boost::shared_ptr<datasource> create(parameters const& params);
private:
datasource_cache();
~datasource_cache();
std::map<std::string,boost::shared_ptr<PluginInfo> > plugins_;
bool registered_;
bool insert(std::string const& name,lt__handle * const module);
std::vector<std::string> plugin_directories_;
};
}
#endif // MAPNIK_DATASOURCE_CACHE_HPP