if (content == null) {
            return StringUtil.EMPTY; // empty
        }

        if (crawlingConfig != null) {
            final Map<String, String> configParam = crawlingConfig.getConfigParameterMap(ConfigName.CONFIG);
            if (configParam != null && Constants.TRUE.equalsIgnoreCase(configParam.get(Param.Config.KEEP_ORIGINAL_BODY))) {
                return content;
            }
        }

        final CrawlingConfig crawlingConfig = crawlingConfigHelper.get(crawlerContext.getSessionId());
        final Map<String, String> clientConfigMap = crawlingConfig.getConfigParameterMap(ConfigName.CLIENT);
        final String value = clientConfigMap.get(CRAWLER_CLIENTS);
        final CrawlerClient client = getClientRuleList(value).stream().map(e -> {

        final CrawlingConfig config = getCrawlingConfig(configId);
        if (config == null) {
            return OptionalThing.empty();
        }
        final String pipeline = config.getConfigParameterMap(ConfigName.CONFIG).get(Config.PIPELINE);
        if (StringUtil.isBlank(pipeline)) {
            return OptionalThing.empty();
        }
        return OptionalThing.of(pipeline);
    }

    /**