final String newId = ComponentUtil.getCrawlingInfoHelper().generateId(entity);
                final String oldId = (String) entity.get(fessConfig.getIndexFieldId());
                if (!newId.equals(oldId)) {
                    entity.put(fessConfig.getIndexFieldId(), newId);
                    entity.remove(fessConfig.getIndexFieldVersion());

        if (responseFields == null) {
            responseFields = fessConfig.getQueryAdditionalResponseFields(//
                    SCORE_FIELD, //
                    fessConfig.getIndexFieldId(), //
                    fessConfig.getIndexFieldDocId(), //
                    fessConfig.getIndexFieldBoost(), //
                    fessConfig.getIndexFieldContentLength(), //

                    new String[] { fessConfig.getIndexFieldId(), fessConfig.getIndexFieldDocId() });
            for (final Map<String, Object> doc : docs) {
                final Object oldIdValue = doc.get(fessConfig.getIndexFieldId());
                if (oldIdValue != null && !idValue.equals(oldIdValue)) {

            public String getIndexFieldTimestamp() {
                return baseConfig.getIndexFieldTimestamp();
            }

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

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

                final String newId = ComponentUtil.getCrawlingInfoHelper().generateId(entity);
                final String oldId = (String) entity.get(fessConfig.getIndexFieldId());
                if (!newId.equals(oldId)) {
                    entity.put(fessConfig.getIndexFieldId(), newId);
                    entity.remove(fessConfig.getIndexFieldVersion());

            if (Float.isFinite(score)) {
                docMap.put(Constants.SCORE, score);
            }
        }

        if (!docMap.containsKey(fessConfig.getIndexFieldId())) {
            docMap.put(fessConfig.getIndexFieldId(), searchHit.getId());
        }

        final String[] searchers = DocumentUtil.getValue(docMap, Constants.SEARCHER, String[].class);
        if (searchers != null) {

            }

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldId() {
                return "id";
            }

            @Override
            public String getIndexFieldDocId() {
                return "doc_id";
            }

            @Override

    }

    public void test_indexFieldDocId() {
        assertEquals("doc_id", fessConfig.getIndexFieldDocId());
    }

    public void test_indexFieldId() {
        assertEquals("id", fessConfig.getIndexFieldId());
    }

    public void test_indexFieldVersion() {
        assertEquals("_version", fessConfig.getIndexFieldVersion());
    }

    public void test_indexFieldSeqNo() {

                final SearchLogHelper searchLogHelper = ComponentUtil.getSearchLogHelper();
                final ClickLog clickLog = new ClickLog();
                clickLog.setUrlId((String) doc.get(fessConfig.getIndexFieldId()));
                clickLog.setUrl(url);
                clickLog.setRequestedAt(systemHelper.getCurrentTimeAsLocalDateTime());

        if (body.documents.isEmpty()) {
            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, "documents is empty."));
        }
        final String indexFieldId = fessConfig.getIndexFieldId();
        final String indexFieldDocId = fessConfig.getIndexFieldDocId();
        final String indexFieldContentLength = fessConfig.getIndexFieldContentLength();