mapnik/plugins/input/csv/csv_inline_featureset.hpp

/*****************************************************************************
 *
 * This file is part of Mapnik (c++ mapping toolkit)
 *
 * Copyright (C) 2021 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 CSV_INLINE_FEATURESET_HPP
#define CSV_INLINE_FEATURESET_HPP

#include <mapnik/feature.hpp>
#include <mapnik/unicode.hpp>
#include "csv_utils.hpp"
#include "csv_datasource.hpp"
#include <deque>

class csv_inline_featureset : public mapnik::Featureset
{
    using locator_type = csv_utils::geometry_column_locator;

  public:
    using array_type = std::deque<csv_datasource::item_type>;
    csv_inline_featureset(std::string const& inline_string,
                          locator_type const& locator,
                          char separator,
                          char quote,
                          std::vector<std::string> const& headers,
                          mapnik::context_ptr const& ctx,
                          array_type&& index_array);
    ~csv_inline_featureset();
    mapnik::feature_ptr next();

  private:
    mapnik::feature_ptr parse_feature(std::string const& str);
    std::string const& inline_string_;
    char separator_;
    char quote_;
    std::vector<std::string> headers_;
    const array_type index_array_;
    array_type::const_iterator index_itr_;
    array_type::const_iterator index_end_;
    mapnik::context_ptr ctx_;
    mapnik::value_integer feature_id_ = 0;
    locator_type const& locator_;
    mapnik::transcoder tr_;
};

#endif // CSV_INLINE_FEATURESET_HPP