return baseConfig.getQueryAdditionalNotAnalyzedFields(fields);
            }

            @Override
            public String getQueryAdditionalAnalyzedFields() {
                return baseConfig.getQueryAdditionalAnalyzedFields();
            }

            @Override
            public String getResponseFieldContentDescription() {

            }

            @Override
            public String getQueryLanguageMapping() {
                return "";
            }

            @Override
            public String getQueryAdditionalAnalyzedFields() {
                return "";
            }

            @Override
            public String getQueryAdditionalDefaultFields() {
                return "";
            }

                    fessConfig.getIndexFieldTimestamp(), //
                    fessConfig.getIndexFieldUrl(), //
                    fessConfig.getIndexFieldVersion()));
        }
        split(fessConfig.getQueryAdditionalAnalyzedFields(), ",")
                .of(stream -> stream.map(String::trim).filter(StringUtil::isNotBlank).forEach(s -> notAnalyzedFieldSet.remove(s)));

            }

            @Override
            public String getQueryAdditionalSortFields() {
                return "";
            }

            @Override
            public String getQueryAdditionalAnalyzedFields() {
                return "";
            }

            @Override
            public String getQueryAdditionalNotAnalyzedFields() {
                return "";
            }