crawler.setSessionId(sid);
            sessionIdList.add(sid);

            final String pathsStr = fileConfig.getPaths();
            if (StringUtil.isBlank(pathsStr)) {
                logger.warn("No target uris. Skipped");
                break;
            }

            final int intervalTime =
                    fileConfig.getIntervalTime() != null ? fileConfig.getIntervalTime() : Constants.DEFAULT_INTERVAL_TIME_FOR_FS;