/***************************************************************************** * * 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 DBFFILE_HPP #define DBFFILE_HPP #include <mapnik/feature.hpp> // boost #include <boost/utility.hpp> #include <boost/interprocess/streams/bufferstream.hpp> // stl #include <vector> #include <string> #include <cassert> #include <fstream> using mapnik::transcoder; using mapnik::Feature; struct field_descriptor { int index_; std::string name_; char type_; int length_; int dec_; std::streampos offset_; }; class dbf_file : private boost::noncopyable { private: int num_records_; int num_fields_; std::size_t record_length_; std::vector<field_descriptor> fields_; #ifdef SHAPE_MEMORY_MAPPED_FILE boost::interprocess::ibufferstream file_; #else std::ifstream file_; #endif char* record_; public: dbf_file(); dbf_file(const std::string& file_name); ~dbf_file(); bool is_open(); int num_records() const; int num_fields() const; field_descriptor const& descriptor(int col) const; void move_to(int index); std::string string_value(int col) const; void add_attribute(int col, transcoder const& tr, Feature const& f) const throw(); private: void read_header(); int read_short(); int read_int(); void skip(int bytes); }; #endif //DBFFILE_HPP