Retrieves path info records for given paths.

def ReadPathInfos(self, client_id, path_type, components_list):
    """Retrieves path info records for given paths."""
    result = {}

    for components in components_list:
      try:
        path_record = self.path_records[(client_id, path_type, components)]
        result[components] = path_record.GetPathInfo()
      except KeyError:
        result[components] = None

    return result