def __init__(self,
              stop_event: Event,
              input_queue: Queue = None,
              output_queue: Queue = None,
              max_worker: int = 10,
              dir_path="",
              is_debug=False,
              **kwargs):
     self._is_debug = is_debug
     FeedbackInterface.__init__(self, **kwargs)
     ExternalTempInterface.__init__(self)
     # do not use predefined queue here
     # self._input_q = input_queue
     # self._output_q = output_queue
     self._stop_event = stop_event
     self._internal_stop_event = Event()
     self._max_worker = max_worker
     self._job_done = 0
     self._job_done_shadow = 0
     self._job_done_lock = RLock()
     self._input_period = 0.0001  # time to sample data into the buffer
     self._max_sample_results = 100000
     self._min_sampling_duration = 0.0001
     self._sample_batch_size = 5000
     self._sample_batch_timeout = 60
     if is_debug:
         self._min_buff_delete_threshold = 10000  # default is 100000
     else:
         self._min_buff_delete_threshold = 100000
     self._speed_penalty_count = 0
     self._finished = False
     manager, self._output_q = get_queue_client(
         QueueManager.MachineSettingCrawler,
         QueueManager.Method_Whois_Output)
     self._db_buffer = ExternalTempDataDiskBuffer(
         "whois_check.db",
         self,
         self._internal_stop_event,
         buf_size=self._max_worker * 50,
         terminate_callback=WhoisChecker.terminate_callback,
         dir_path=dir_path)
     self._populate_with_state()  # FeedbackInterface
     if not is_debug:
         log_period = 120
     else:
         log_period = 10
     self._progress_logger = ProgressLogger(log_period, self,
                                            self._internal_stop_event)