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#ifndef OSMIUM_EXPERIMENTAL_FLEX_READER_HPP
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#define OSMIUM_EXPERIMENTAL_FLEX_READER_HPP
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/*
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This file is part of Osmium (http://osmcode.org/libosmium).
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Copyright 2014 Jochen Topf <jochen@topf.org> and others (see README).
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#include <osmium/handler/node_locations_for_ways.hpp>
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#include <osmium/visitor.hpp>
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#include <osmium/area/multipolygon_collector.hpp>
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#include <osmium/area/assembler.hpp>
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namespace osmium {
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/**
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* Experimental code that is not "officially" supported.
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*/
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namespace experimental {
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template <class TLocationHandler>
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class FlexReader {
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bool m_with_areas;
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osmium::osm_entity_bits::type m_entities;
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typename TLocationHandler::index_pos_type m_index_pos;
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typename TLocationHandler::index_neg_type m_index_neg;
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TLocationHandler m_location_handler;
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osmium::io::Reader m_reader;
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osmium::area::Assembler::config_type m_assembler_config;
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osmium::area::MultipolygonCollector<osmium::area::Assembler> m_collector;
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public:
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explicit FlexReader(const osmium::io::File& file, osmium::osm_entity_bits::type entities = osmium::osm_entity_bits::nwr) :
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m_with_areas(entities & osmium::osm_entity_bits::area),
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m_entities((entities & ~osmium::osm_entity_bits::area) | (m_with_areas ? osmium::osm_entity_bits::node | osmium::osm_entity_bits::way : osmium::osm_entity_bits::nothing)),
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m_index_pos(),
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m_index_neg(),
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m_location_handler(m_index_pos, m_index_neg),
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m_reader(file, m_entities),
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m_assembler_config(),
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m_collector(m_assembler_config)
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{
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m_location_handler.ignore_errors();
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if (m_with_areas) {
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osmium::io::Reader reader(file, osmium::osm_entity_bits::relation);
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m_collector.read_relations(reader);
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reader.close();
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}
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}
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explicit FlexReader(const std::string& filename, osmium::osm_entity_bits::type entities = osmium::osm_entity_bits::nwr) :
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FlexReader(osmium::io::File(filename), entities) {
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}
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explicit FlexReader(const char* filename, osmium::osm_entity_bits::type entities = osmium::osm_entity_bits::nwr) :
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FlexReader(osmium::io::File(filename), entities) {
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}
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std::vector<osmium::memory::Buffer> read() {
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std::vector<osmium::memory::Buffer> buffers;
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osmium::memory::Buffer buffer = m_reader.read();
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if (buffer) {
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buffers.push_back(std::move(buffer));
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if (m_with_areas) {
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osmium::apply(buffers[0], m_location_handler, m_collector.handler([&buffers](osmium::memory::Buffer&& area_buffer) {
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buffers.push_back(std::move(area_buffer));
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}));
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} else if (m_entities & (osmium::osm_entity_bits::node | osmium::osm_entity_bits::way)) {
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osmium::apply(buffers[0], m_location_handler);
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}
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}
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return buffers;
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}
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osmium::io::Header header() const {
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return m_reader.header();
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}
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void close() {
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return m_reader.close();
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}
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bool eof() const {
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return m_reader.eof();
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}
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const osmium::area::MultipolygonCollector<osmium::area::Assembler>& collector() const {
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return m_collector;
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}
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}; // class FlexReader
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} // namespace experimental
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} // namespace osmium
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#endif // OSMIUM_EXPERIMENTAL_FLEX_READER_HPP
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