mapnik/include/mapnik/datasource_cache.hpp
artemp a513d3f97d + code: avoid exposing unsafe static methods in datasource_cache ( #1451)
+ python: remove redundent 'instance' method (mapnik.DatasourceCache)
+ python: reflect plugin_directories method
+ tests: update python usage

TODO: consider using similar approach in FontEngine etc..
TODO: consider returning reference from singleton::instance() to
      safeguard from accidental deleting a 'singleton' pointer
2012-09-05 12:53:37 +01:00

64 lines
2.0 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/plugin.hpp>
#include <mapnik/datasource.hpp>
// boost
#include <boost/utility.hpp>
#include <boost/shared_ptr.hpp>
// stl
#include <map>
namespace mapnik { namespace detail {
class MAPNIK_DECL datasource_cache_impl
{
public:
datasource_cache_impl();
~datasource_cache_impl();
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, bool bind=true);
private:
std::map<std::string,boost::shared_ptr<PluginInfo> > plugins_;
bool registered_;
bool insert(std::string const& name,const lt_dlhandle module);
std::vector<std::string> plugin_directories_;
};
}
typedef singleton<detail::datasource_cache_impl, CreateStatic> datasource_cache;
}
#endif // MAPNIK_DATASOURCE_CACHE_HPP