Beispiel #1
0
void SendStatistics(SearchParams const & params, m2::RectD const & viewport, Results const & res)
{
  size_t const kMaxNumResultsToSend = 10;

  size_t const numResultsToSend = min(kMaxNumResultsToSend, res.GetCount());
  string resultString = strings::to_string(numResultsToSend);
  for (size_t i = 0; i < numResultsToSend; ++i)
    resultString.append("\t" + res.GetResult(i).ToStringForStats());

  string posX, posY;
  if (params.IsValidPosition())
  {
    posX = strings::to_string(MercatorBounds::LonToX(params.m_lon));
    posY = strings::to_string(MercatorBounds::LatToY(params.m_lat));
  }

  alohalytics::TStringMap const stats = {
      {"posX", posX},
      {"posY", posY},
      {"viewportMinX", strings::to_string(viewport.minX())},
      {"viewportMinY", strings::to_string(viewport.minY())},
      {"viewportMaxX", strings::to_string(viewport.maxX())},
      {"viewportMaxY", strings::to_string(viewport.maxY())},
      {"query", params.m_query},
      {"locale", params.m_inputLocale},
      {"results", resultString},
  };
  alohalytics::LogEvent("searchEmitResultsAndCoords", stats);
}
Beispiel #2
0
void Engine::SetRankPivot(SearchParams const & params, m2::RectD const & viewport,
                          bool viewportSearch, Query & processor)
{
  if (!viewportSearch && params.IsValidPosition())
  {
    m2::PointD const pos = MercatorBounds::FromLatLon(params.m_lat, params.m_lon);
    if (m2::Inflate(viewport, viewport.SizeX() / 4.0, viewport.SizeY() / 4.0).IsPointInside(pos))
    {
      processor.SetRankPivot(pos);
      return;
    }
  }

  processor.SetRankPivot(viewport.Center());
}
Beispiel #3
0
void Engine::DoSearch(SearchParams const & params, m2::RectD const & viewport,
                      shared_ptr<QueryHandle> handle, Query & processor)
{
  bool const viewportSearch = params.GetMode() == Mode::Viewport;

  // Initialize query processor.
  processor.Init(viewportSearch);
  handle->Attach(processor);
  MY_SCOPE_GUARD(detach, [&handle] { handle->Detach(); });

  // Early exit when query processing is cancelled.
  if (processor.IsCancelled())
  {
    params.m_onResults(Results::GetEndMarker(true /* isCancelled */));
    return;
  }

  SetRankPivot(params, viewport, viewportSearch, processor);

  if (params.IsValidPosition())
    processor.SetPosition(MercatorBounds::FromLatLon(params.m_lat, params.m_lon));
  else
    processor.SetPosition(viewport.Center());

  processor.SetMode(params.GetMode());
  processor.SetSuggestsEnabled(params.GetSuggestsEnabled());

  // This flag is needed for consistency with old search algorithm
  // only. It will be gone when we remove old search code.
  processor.SetSearchInWorld(true);

  processor.SetInputLocale(params.m_inputLocale);

  ASSERT(!params.m_query.empty(), ());
  processor.SetQuery(params.m_query);

  Results res;

  processor.SearchCoordinates(res);

  try
  {
    if (params.m_onStarted)
      params.m_onStarted();

    processor.SetViewport(viewport, true /* forceUpdate */);
    if (viewportSearch)
      processor.SearchViewportPoints(res);
    else
      processor.Search(res, kResultsCount);

    if (!processor.IsCancelled())
      EmitResults(params, res);
  }
  catch (Query::CancelException const &)
  {
    LOG(LDEBUG, ("Search has been cancelled."));
  }

  if (!viewportSearch && !processor.IsCancelled())
    SendStatistics(params, viewport, res);

  // Emit finish marker to client.
  params.m_onResults(Results::GetEndMarker(processor.IsCancelled()));
}