Method Save

generator/metalines_builder.cpp:200–229

}

void MetalinesBuilder::Save()
{
  LOG(LINFO, ("Saving metalines to", GetFilename()));

  std::unordered_multimap<size_t, std::shared_ptr<LineString>> keyToLineString;
  FileReader reader(GetTmpFilename());
  ReaderSource<FileReader> src(reader);
  while (src.Size() > 0)
  {
    auto const key = ReadVarUint<uint64_t>(src);
    keyToLineString.emplace(key, std::make_shared<LineString>(LineString::Deserialize(src)));
  }

  FileWriter writer(GetFilename());
  uint32_t countLines = 0;
  uint32_t countWays = 0;
  auto const mergedData = LineStringMerger::Merge(keyToLineString);
  for (auto const & p : mergedData)
  {
    for (auto const & lineString : p.second)
    {
      auto const & ways = lineString->GetWays();
      rw::WriteVectorOfPOD(writer, ways);
      countWays += ways.size();
      ++countLines;
    }
  }

  LOG(LINFO, ("Finished saving metalines. Wrote", countLines, "metalines [with", countWays, "ways]"));
}

void MetalinesBuilder::OrderCollectedData()
{