osrm-backend/src/contractor/contractor.cpp
2017-07-20 12:01:05 +02:00

115 lines
3.3 KiB
C++

#include "contractor/contractor.hpp"
#include "contractor/crc32_processor.hpp"
#include "contractor/files.hpp"
#include "contractor/graph_contractor.hpp"
#include "contractor/graph_contractor_adaptors.hpp"
#include "extractor/compressed_edge_container.hpp"
#include "extractor/edge_based_graph_factory.hpp"
#include "extractor/node_based_edge.hpp"
#include "storage/io.hpp"
#include "updater/updater.hpp"
#include "util/exception.hpp"
#include "util/exception_utils.hpp"
#include "util/graph_loader.hpp"
#include "util/integer_range.hpp"
#include "util/log.hpp"
#include "util/static_graph.hpp"
#include "util/string_util.hpp"
#include "util/timing_util.hpp"
#include "util/typedefs.hpp"
#include <algorithm>
#include <bitset>
#include <cstdint>
#include <fstream>
#include <iterator>
#include <memory>
#include <vector>
namespace osrm
{
namespace contractor
{
int Contractor::Run()
{
if (config.core_factor > 1.0 || config.core_factor < 0)
{
throw util::exception("Core factor must be between 0.0 to 1.0 (inclusive)" + SOURCE_REF);
}
TIMER_START(preparing);
util::Log() << "Reading node weights.";
std::vector<EdgeWeight> node_weights;
{
storage::io::FileReader reader(config.node_path,
storage::io::FileReader::VerifyFingerprint);
storage::serialization::read(reader, node_weights);
}
util::Log() << "Done reading node weights.";
util::Log() << "Loading edge-expanded graph representation";
std::vector<extractor::EdgeBasedEdge> edge_based_edge_list;
updater::Updater updater(config.updater_config);
EdgeID max_edge_id = updater.LoadAndUpdateEdgeExpandedGraph(edge_based_edge_list, node_weights);
// Contracting the edge-expanded graph
TIMER_START(contraction);
std::vector<bool> is_core_node;
std::vector<float> node_levels;
if (config.use_cached_priority)
{
files::readLevels(config.level_path, node_levels);
}
util::DeallocatingVector<QueryEdge> contracted_edge_list;
{ // own scope to not keep the contractor around
GraphContractor graph_contractor(max_edge_id + 1,
adaptToContractorInput(std::move(edge_based_edge_list)),
std::move(node_levels),
std::move(node_weights));
graph_contractor.Run(config.core_factor);
contracted_edge_list = graph_contractor.GetEdges<QueryEdge>();
is_core_node = graph_contractor.GetCoreMarker();
node_levels = graph_contractor.GetNodeLevels();
}
TIMER_STOP(contraction);
util::Log() << "Contraction took " << TIMER_SEC(contraction) << " sec";
{
RangebasedCRC32 crc32_calculator;
const unsigned checksum = crc32_calculator(contracted_edge_list);
files::writeGraph(config.hsgr_data_path,
checksum,
QueryGraph{max_edge_id + 1, std::move(contracted_edge_list)});
}
files::writeCoreMarker(config.core_data_path, is_core_node);
if (!config.use_cached_priority)
{
files::writeLevels(config.level_path, node_levels);
}
TIMER_STOP(preparing);
util::Log() << "Preprocessing : " << TIMER_SEC(preparing) << " seconds";
util::Log() << "finished preprocessing";
return 0;
}
} // namespace contractor
} // namespace osrm