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/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2025 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
*
*****************************************************************************/
// mapnik
#include "csv_inline_featureset.hpp"
#include <mapnik/debug.hpp>
#include <mapnik/feature.hpp>
#include <mapnik/feature_factory.hpp>
#include <mapnik/util/utf_conv_win.hpp>
#include <mapnik/util/trim.hpp>
// stl
#include <string>
#include <vector>
#include <deque>
csv_inline_featureset::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)
: inline_string_(inline_string),
separator_(separator),
quote_(quote),
headers_(headers),
index_array_(std::move(index_array)),
index_itr_(index_array_.begin()),
index_end_(index_array_.end()),
ctx_(ctx),
locator_(locator),
tr_("utf8")
{}
csv_inline_featureset::~csv_inline_featureset() {}
mapnik::feature_ptr csv_inline_featureset::parse_feature(std::string const& str)
{
auto const* start = str.data();
auto const* end = start + str.size();
auto values = csv_utils::parse_line(start, end, separator_, quote_, headers_.size());
auto geom = csv_utils::extract_geometry(values, locator_);
if (!geom.is<mapnik::geometry::geometry_empty>())
{
mapnik::feature_ptr feature(mapnik::feature_factory::create(ctx_, ++feature_id_));
feature->set_geometry(std::move(geom));
csv_utils::process_properties(*feature, headers_, values, locator_, tr_);
return feature;
}
return mapnik::feature_ptr();
}
mapnik::feature_ptr csv_inline_featureset::next()
{
if (index_itr_ != index_end_)
{
csv_datasource::item_type const& item = *index_itr_++;
std::size_t file_offset = item.second.first;
std::size_t size = item.second.second;
std::string str = inline_string_.substr(file_offset, size);
return parse_feature(str);
}
return mapnik::feature_ptr();
}
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