/***************************************************************************** * * 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_SQLITE_DATASOURCE_HPP #define MAPNIK_SQLITE_DATASOURCE_HPP // mapnik #include <mapnik/datasource.hpp> #include <mapnik/feature.hpp> #include <mapnik/feature_layer_desc.hpp> #include <mapnik/wkb.hpp> // boost #include <boost/shared_ptr.hpp> #include <boost/scoped_ptr.hpp> // sqlite #include "sqlite_connection.hpp" class sqlite_datasource : public mapnik::datasource { public: sqlite_datasource(mapnik::parameters const& params, bool bind = true); virtual ~sqlite_datasource (); datasource::datasource_t type() const; static std::string name(); mapnik::featureset_ptr features(mapnik::query const& q) const; mapnik::featureset_ptr features_at_point(mapnik::coord2d const& pt) const; mapnik::box2d<double> envelope() const; boost::optional<mapnik::datasource::geometry_t> get_geometry_type() const; mapnik::layer_descriptor get_descriptor() const; void bind() const; private: // FIXME: remove mutable qualifier from data members // by factoring out bind() logic out from // datasource impl !!! mutable mapnik::box2d<double> extent_; mutable bool extent_initialized_; mapnik::datasource::datasource_t type_; mutable std::string dataset_name_; mutable boost::shared_ptr<sqlite_connection> dataset_; mutable std::string table_; std::string fields_; std::string metadata_; mutable std::string geometry_table_; mutable std::string geometry_field_; mutable std::string index_table_; mutable std::string key_field_; mutable int row_offset_; mutable int row_limit_; // TODO - also add to postgis.input const std::string intersects_token_; mutable mapnik::layer_descriptor desc_; mutable mapnik::wkbFormat format_; mutable bool use_spatial_index_; mutable bool has_spatial_index_; mutable bool using_subquery_; mutable std::vector<std::string> init_statements_; // Fill init_statements with any statements // needed to attach auxillary databases void parse_attachdb(std::string const& attachdb) const; std::string populate_tokens(const std::string& sql) const; }; #endif // MAPNIK_SQLITE_DATASOURCE_HPP