80 lines
3 KiB
C++
80 lines
3 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
|
|
*
|
|
*****************************************************************************/
|
|
|
|
// 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,
|
|
detail::geometry_column_locator 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 values = csv_utils::parse_line(str, separator_, quote_);
|
|
auto geom = detail::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));
|
|
detail::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();
|
|
}
|