final String dataPath = getResourcePath(indexConfigPath, fessConfig.getFesenType(), "/" + index + "/" + docType + ".bulk");
                if (ResourceUtil.isExist(dataPath)) {
                    insertBulkData(fessConfig, indexName, dataPath);
                }
                split(fessConfig.getAppExtensionNames(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(name -> {
                    final String bulkPath =