});

        // update pager
        BeanUtil.copyBeanToBean(boostDocumentRuleList, boostDocumentRulePager, option -> option.include(Constants.PAGER_CONVERSION_RULE));
        boostDocumentRulePager.setPageNumberList(
                boostDocumentRuleList.pageRange(op -> op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger())).createPageNumberList());

        return boostDocumentRuleList;
    }