final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return searchEngineClient.update(fessConfig.getIndexDocumentUpdateIndex(), id, field, value);
    }

    public boolean deleteDocument(final SearchEngineClient searchEngineClient, final String id) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

    protected Hashtable<String, String> createAdminEnv() {
        return createEnvironment(//
                fessConfig.getLdapInitialContextFactory(), //
                fessConfig.getLdapSecurityAuthentication(), fessConfig.getLdapProviderUrl(), //
                fessConfig.getLdapAdminSecurityPrincipal(), //
                fessConfig.getLdapAdminSecurityCredentials());
    }

                || fessConfig.isCrawlerDocumentCacheEnabled()) && fessConfig.isSupportedDocumentCacheMimetypes(mimeType)) {
            if (responseData.getContentLength() > 0
                    && responseData.getContentLength() <= fessConfig.getCrawlerDocumentCacheMaxSizeAsInteger().longValue()) {

                final String cache = content.trim().replaceAll("[ \\t\\x0B\\f]+", " ");

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return convertTermQuery(fessConfig, context, termQuery, boost, field, text);
    }

    protected QueryBuilder convertTermQuery(final FessConfig fessConfig, final QueryContext context, final TermQuery termQuery,
            final float boost, final String field, final String text) {

    protected BoolQueryBuilder buildDefaultQueryBuilder(final FessConfig fessConfig, final QueryContext context,
            final DefaultQueryBuilderFunction builder) {
        final BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
        boolQuery.should(builder.apply(fessConfig.getIndexFieldTitle(), fessConfig.getQueryBoostTitleAsDecimal().floatValue()));

                    entity.remove(fessConfig.getIndexFieldVersion());
                    final Long seqNo = (Long) entity.remove(fessConfig.getIndexFieldSeqNo());
                    final Long primaryTerm = (Long) entity.remove(fessConfig.getIndexFieldPrimaryTerm());
                    if (seqNo != null && primaryTerm != null && oldId != null) {

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String url = (String) dataMap.get(fessConfig.getIndexFieldUrl());
        final StringBuilder buf = new StringBuilder(1000);

        @SuppressWarnings("unchecked")
        final List<String> roleTypeList = (List<String>) dataMap.get(fessConfig.getIndexFieldRole());
        buf.append(url);

        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        final StringBuilder resultBuf = new StringBuilder();

        // clean up
        final QueryBuilder queryBuilder = QueryBuilders.rangeQuery(fessConfig.getIndexFieldExpires()).to("now");
        try {
            searchEngineClient.deleteByQuery(fessConfig.getIndexDocumentUpdateIndex(), queryBuilder);

            return buildDefaultQueryBuilder(fessConfig, context,
                    (f, b) -> QueryBuilders.fuzzyQuery(f, text).fuzziness(Fuzziness.fromEdits(fuzzyQuery.getMaxEdits())).boost(b * boost)
                            .maxExpansions(fessConfig.getQueryFuzzyExpansionsAsInteger())
                            .prefixLength(fessConfig.getQueryFuzzyPrefixLengthAsInteger())

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String refresh = StringUtil.isNotBlank(fessConfig.getIndexReindexRefresh()) ? fessConfig.getIndexReindexRefresh() : null;
        final String requestsPerSecond = getReindexRequestsPerSecound(fessConfig);
        final String scroll = StringUtil.isNotBlank(fessConfig.getIndexReindexScroll()) ? fessConfig.getIndexReindexScroll() : null;