SCORE_FIELD, //
                    fessConfig.getIndexFieldId(), //
                    fessConfig.getIndexFieldDocId(), //
                    fessConfig.getIndexFieldBoost(), //
                    fessConfig.getIndexFieldContentLength(), //
                    fessConfig.getIndexFieldHost(), //
                    fessConfig.getIndexFieldSite(), //

        // created
        defaultDataMap.put(fessConfig.getIndexFieldCreated(), systemHelper.getCurrentTime());
        // boost
        defaultDataMap.put(fessConfig.getIndexFieldBoost(), config.getBoost().toString());
        // label: labelType
        // role: roleType
        final List<String> roleTypeList = new ArrayList<>();

        final String indexFieldFavoriteCount = fessConfig.getIndexFieldFavoriteCount();
        final String indexFieldClickCount = fessConfig.getIndexFieldClickCount();
        final String indexFieldBoost = fessConfig.getIndexFieldBoost();
        final String indexFieldRole = fessConfig.getIndexFieldRole();
        final String indexFieldLastModified = fessConfig.getIndexFieldLastModified();

     */
    protected void addBoostValue(final Map<String, Object> map, final float documentBoost) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        map.put(fessConfig.getIndexFieldBoost(), documentBoost);
        if (logger.isDebugEnabled()) {
            logger.debug("Document boost applied: boost={}, url={}", documentBoost, map.get(fessConfig.getIndexFieldUrl()));
        }
    }

    /**

        queryContext.addFunctionScore(list -> {
            list.add(new FilterFunctionBuilder(
                    ScoreFunctionBuilders.fieldValueFactorFunction(ComponentUtil.getFessConfig().getIndexFieldBoost())));
            ComponentUtil.getKeyMatchHelper().buildQuery(queryContext.getDefaultKeyword(), list);
            list.addAll(boostFunctionList);
        });
    }

    /**

        }
        // indexingTarget
        putResultDataBody(dataMap, Constants.INDEXING_TARGET, indexingTarget);
        //  boost
        putResultDataBody(dataMap, fessConfig.getIndexFieldBoost(), crawlingConfig.getDocumentBoost());
        // label: labelType
        final LabelTypeHelper labelTypeHelper = ComponentUtil.getLabelTypeHelper();

        }
        // indexingTarget
        putResultDataBody(dataMap, Constants.INDEXING_TARGET, indexingTarget);
        //  boost
        putResultDataBody(dataMap, fessConfig.getIndexFieldBoost(), crawlingConfig.getDocumentBoost());
        // label: labelType
        putResultDataBody(dataMap, fessConfig.getIndexFieldLabel(), labelTypeHelper.getMatchedLabelValueSet(url));
        // role: roleType

     * The value is, e.g. boost <br>
     * comment: Field name for boost value in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldBoost();

    /**
     * Get the value for the key 'index.field.created'. <br>
     * The value is, e.g. created <br>
     * comment: Field name for creation date in the index.