protected int crawlerPriority = Thread.NORM_PRIORITY;

    protected final List<DataCrawlingThread> dataCrawlingThreadList = Collections.synchronizedList(new ArrayList<>());

    public void crawl(final String sessionId) {
        final List<DataConfig> configList = ComponentUtil.getCrawlingConfigHelper().getAllDataConfigList();

        if (configList.isEmpty()) {

    protected int indexUpdaterPriority = Thread.MAX_PRIORITY;

    protected int crawlerPriority = Thread.NORM_PRIORITY;

    protected final List<Crawler> crawlerList = Collections.synchronizedList(new ArrayList<>());

    public void crawl(final String sessionId, final List<String> webConfigIdList, final List<String> fileConfigIdList) {
        final boolean runAll = webConfigIdList == null && fileConfigIdList == null;

      )
    }
    val request =
      Request.Builder()
        .url(webServer.url("/"))
        .build()
    val attempts = CountDownLatch(20)
    val webSockets = Collections.synchronizedList(ArrayList<WebSocket>())
    val reconnectOnFailure: WebSocketListener =
      object : WebSocketListener() {
        override fun onFailure(
          webSocket: WebSocket,
          t: Throwable,