final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return searchEngineClient.getDocument(fessConfig.getIndexDocumentUpdateIndex(), builder -> {
            builder.setQuery(QueryBuilders.idsQuery().addIds(id));
            builder.setFetchSource(fields, null);
            return true;
        }).orElse(null);
    }

        final StringBuilder buf = new StringBuilder(100);
        buf.append(form.q);
        if (!form.fields.isEmpty() && form.fields.containsKey(LABEL_FIELD)) {
            final String[] values = form.fields.get(LABEL_FIELD);
            final List<String> labelList = new ArrayList<>();
            if (values != null) {
                Collections.addAll(labelList, values);

    }

    public void setNotAnalyzedFields(final String[] fields) {
        notAnalyzedFieldSet = new HashSet<>();
        Collections.addAll(notAnalyzedFieldSet, fields);
    }

    protected boolean isSortField(final String field) {
        for (final String f : sortFields) {
            if (f.equals(field)) {
                return true;
            }
        }
        return false;

                    if (source != null) {
                        docMap.putAll(source);
                    }
                    final Map<String, DocumentField> fields = hit.getFields();
                    if (fields != null) {
                        docMap.putAll(fields.entrySet().stream()
                                .collect(Collectors.toMap(Entry::getKey, e -> (Object) e.getValue().getValues())));
                    }

                try {
                    suggester.settings().array().add(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS, field);
                } catch (final SuggestSettingsException e) {
                    logger.warn("Failed to add {}", field, e);
                }
            }));
            suggester.createIndexIfNothing();

index.field.config_id=config_id
index.field.expires=expires
index.field.url=url
index.field.doc_id=doc_id
index.field.id=_id
index.field.version=_version
index.field.seq_no=_seq_no
index.field.primary_term=_primary_term
index.field.lang=lang
index.field.has_cache=has_cache
index.field.last_modified=last_modified
index.field.anchor=anchor
index.field.segment=segment
index.field.role=role
index.field.boost=boost

            if (searchResponse.getTotalShards() != searchResponse.getSuccessfulShards()) {
                builder.partialResults(true);
            }

            // build highlighting fields
            final String hlPrefix = ComponentUtil.getQueryHelper().getHighlightPrefix();
            for (final SearchHit searchHit : searchHits.getHits()) {

        if (!labelTypeItems.isEmpty() && !form.fields.containsKey(FessSearchAction.LABEL_FIELD)) {
            final String[] defaultLabelValues = fessConfig.getDefaultLabelValues(getUserBean());
            if (defaultLabelValues.length > 0) {
                form.fields.put(FessSearchAction.LABEL_FIELD, defaultLabelValues);
            }
        }

        }
        return null;
    }

    public TextFragment[] createTextFragmentsByHighlight(final HighlightField[] fields) {
        final List<TextFragment> list = new ArrayList<>();
        for (final HighlightField field : fields) {
            final Text[] fragments = field.fragments();
            if (fragments != null) {
                for (final Text fragment : fragments) {

labels.purgeSuggestSearchLogDay=Purge Suggest Documents Before
labels.q=Query
labels.roles=Roles
labels.suggestSearchLog=Suggest Search Log
labels.suggestWord=Suggest Word
labels.targetLabel=Label
labels.term=Term
labels.fields=Fields
labels.ex_q=Extended Query
labels.ldapProviderUrl=LDAP URL
labels.ldapSecurityPrincipal=User DN
labels.ldapAdminSecurityPrincipal=Bind DN
labels.ldapAdminSecurityCredentials=Password
labels.ldapBaseDn=Base DN