/***************************************************************************** * * 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 OCCI_DATASOURCE_HPP #define OCCI_DATASOURCE_HPP // mapnik #include <mapnik/datasource.hpp> #include <mapnik/params.hpp> #include <mapnik/query.hpp> #include <mapnik/feature.hpp> #include <mapnik/box2d.hpp> #include <mapnik/coord.hpp> #include <mapnik/feature_layer_desc.hpp> #include <mapnik/value_types.hpp> // boost #include <boost/optional.hpp> #include <boost/shared_ptr.hpp> // stl #include <vector> #include <string> // oci #include "occi_types.hpp" class occi_datasource : public mapnik::datasource { public: occi_datasource(mapnik::parameters const& params); virtual ~occi_datasource (); mapnik::datasource::datasource_t type() const; static const char * name(); mapnik::featureset_ptr features(mapnik::query const& q) const; mapnik::featureset_ptr features_at_point(mapnik::coord2d const& pt, double tol = 0) const; mapnik::box2d<double> envelope() const; boost::optional<mapnik::datasource::geometry_t> get_geometry_type() const; mapnik::layer_descriptor get_descriptor() const; private: std::string sql_bbox(mapnik::box2d<double> const& env) const; std::string populate_tokens(std::string const& sql, double scale_denom, mapnik::box2d<double> const& env, double pixel_width, double pixel_height) const; static const std::string METADATA_TABLE; static const double FMAX; mapnik::datasource::datasource_t type_; std::string table_; std::string table_name_; std::string fields_; std::string geometry_field_; int srid_; bool srid_initialized_; mutable bool extent_initialized_; mutable mapnik::box2d<double> extent_; const std::string bbox_token_; const std::string scale_denom_token_; const std::string pixel_width_token_; const std::string pixel_height_token_; mapnik::layer_descriptor desc_; bool use_wkb_; mapnik::value_integer row_limit_; int row_prefetch_; oracle::occi::StatelessConnectionPool* pool_; oracle::occi::Connection* conn_; bool use_connection_pool_; bool use_spatial_index_; bool estimate_extent_; }; #endif // OCCI_DATASOURCE_HPP