if (queries != null && queries.length > 0) {
                doc.put(HL_CACHE, replaceHighlightQueries(cache, queries));
            } else {
                doc.put(HL_CACHE, cache);
            }
        } else {
            doc.put(fessConfig.getIndexFieldCache(), StringUtil.EMPTY);
            doc.put(HL_CACHE, StringUtil.EMPTY);
        }

        try {

    protected String sortPrefix = "sort:";

    protected String additionalQuery;

    protected SortBuilder<?>[] defaultSortBuilders;

    protected String highlightPrefix = "hl_";

    protected FacetInfo defaultFacetInfo;

    protected GeoInfo defaultGeoInfo;

    protected Map<String, String> fieldBoostMap = new HashMap<>();

query.highlight.fragmenter=span
query.highlight.fragment.offset=-1
query.highlight.no.match.size=0
query.highlight.order=score
query.highlight.phrase.limit=256
query.highlight.content.description.fields=hl_content,digest
query.highlight.boundary.position.detect=true
query.highlight.text.fragment.type=query
query.highlight.text.fragment.size=3
query.highlight.text.fragment.prefix.length=5

    /** The key of the configuration. e.g. 256 */
    String QUERY_HIGHLIGHT_PHRASE_LIMIT = "query.highlight.phrase.limit";

    /** The key of the configuration. e.g. hl_content,digest */
    String QUERY_HIGHLIGHT_CONTENT_DESCRIPTION_FIELDS = "query.highlight.content.description.fields";

    /** The key of the configuration. e.g. true */