c21778fdfc
- the function in plugin was already configurable via flags, and only contained two un-conditioned blocks that process_csv_file didn't have - so I extracted the common parts into a separate function (in a class holding the flags and state), process_csv_file calls it with default flags, plugin sets them from params - removed namespace ::detail, moving stuff that was used outside csv_utils to ::csv_utils, and the rest to ::csv_utils::detail
77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2015 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_INDEX_FEATURESET_HPP
|
|
#define CSV_INDEX_FEATURESET_HPP
|
|
|
|
#include <mapnik/feature.hpp>
|
|
#include <mapnik/unicode.hpp>
|
|
#include <mapnik/geom_util.hpp>
|
|
#include "csv_utils.hpp"
|
|
#include "csv_datasource.hpp"
|
|
|
|
#if defined(MAPNIK_MEMORY_MAPPED_FILE)
|
|
#pragma GCC diagnostic push
|
|
#include <mapnik/warning_ignore.hpp>
|
|
#include <boost/interprocess/mapped_region.hpp>
|
|
#include <boost/interprocess/streams/bufferstream.hpp>
|
|
#pragma GCC diagnostic pop
|
|
#include <mapnik/mapped_memory_cache.hpp>
|
|
#endif
|
|
|
|
class csv_index_featureset : public mapnik::Featureset
|
|
{
|
|
using value_type = std::pair<std::size_t, std::size_t>;
|
|
using locator_type = csv_utils::geometry_column_locator;
|
|
public:
|
|
|
|
csv_index_featureset(std::string const& filename,
|
|
mapnik::filter_in_box const& filter,
|
|
locator_type const& locator,
|
|
char separator,
|
|
char quote,
|
|
std::vector<std::string> const& headers,
|
|
mapnik::context_ptr const& ctx);
|
|
~csv_index_featureset();
|
|
mapnik::feature_ptr next();
|
|
private:
|
|
mapnik::feature_ptr parse_feature(char const* beg, char const* end);
|
|
char separator_;
|
|
char quote_;
|
|
std::vector<std::string> headers_;
|
|
mapnik::context_ptr ctx_;
|
|
mapnik::value_integer feature_id_ = 0;
|
|
locator_type const& locator_;
|
|
mapnik::transcoder tr_;
|
|
#if defined (MAPNIK_MEMORY_MAPPED_FILE)
|
|
using file_source_type = boost::interprocess::ibufferstream;
|
|
mapnik::mapped_region_ptr mapped_region_;
|
|
#else
|
|
using file_ptr = std::unique_ptr<std::FILE, int (*)(std::FILE *)>;
|
|
file_ptr file_;
|
|
#endif
|
|
std::vector<value_type> positions_;
|
|
std::vector<value_type>::iterator itr_;
|
|
};
|
|
|
|
|
|
#endif // CSV_INDEX_FEATURESET_HPP
|