code: @Override
    protected void updateLocations(final NumberedSplit<InputSplit> numberedSplit) {
      final String location = numberedSplit.getLocation();
      addLocationMapping(locationToSplits, numberedSplit, location);
      final String normalizedLocation = normalize(location);
      addLocationMapping(partialLocationsToSplits, numberedSplit, normalizedLocation);
      normalizedLocations.add(normalizedLocation);
    }
docs: {@inheritDoc}.
  Saves locationToSplits and partialLocations as well.