excludedDocUrls = fessConfig.getCrawlerDocumentHtmlDefaultExcludeSearchPatterns();
        boost = 1.0f;
        if (StringUtil.isBlank(userAgent)) {
            userAgent = fessConfig.getUserAgentName();
        }
        numOfThread = Constants.DEFAULT_NUM_OF_THREAD_FOR_WEB;
        intervalTime = Constants.DEFAULT_INTERVAL_TIME_FOR_WEB;
        sortOrder = 0;