* @return the host name, or empty string if URL is blank, or unknown hostname if parsing fails
     */
    default String getHost(final String u) {
        if (StringUtil.isBlank(u)) {
            return StringUtil.EMPTY; // empty
        }

        String url = u;
        final String originalUrl = url;

        int idx = url.indexOf("://");
        if (idx >= 0) {
            url = url.substring(idx + 3);

     * @param dataCrawlEndTime The parameter value of dataCrawlEndTime. (NotNull)
     */
    public void setDataCrawlEndTime(String dataCrawlEndTime) {
        registerVariable("dataCrawlEndTime", dataCrawlEndTime);
    }

    /**
     * Set the value of dataCrawlExecTime, used in parameter comment. <br>
     * Even if empty string, treated as empty plainly. So "IF pmb != null" is false if empty.

        BoostDocumentRuleCQ cq = new BoostDocumentRuleCQ();
        if (queryLambda != null) {
            queryLambda.callback(cq);
        }
        FilterAggregationBuilder builder = regFilterA(name, cq.getQuery());
        if (opLambda != null) {
            opLambda.callback(builder);
        }
        if (aggsLambda != null) {
            BoostDocumentRuleCA ca = new BoostDocumentRuleCA();

        DuplicateHostCQ cq = new DuplicateHostCQ();
        if (queryLambda != null) {
            queryLambda.callback(cq);
        }
        FilterAggregationBuilder builder = regFilterA(name, cq.getQuery());
        if (opLambda != null) {
            opLambda.callback(builder);
        }
        if (aggsLambda != null) {
            DuplicateHostCA ca = new DuplicateHostCA();

        if (mustQuery.hasQueries() || shouldQuery.hasQueries() || mustNotQuery.hasQueries() || filterQuery.hasQueries()) {
            BoolQueryBuilder builder = regBoolCQ(mustQuery.getQueryBuilderList(), shouldQuery.getQueryBuilderList(),
                    mustNotQuery.getQueryBuilderList(), filterQuery.getQueryBuilderList());
            if (opLambda != null) {
                opLambda.callback(builder);

        if (mustQuery.hasQueries() || shouldQuery.hasQueries() || mustNotQuery.hasQueries() || filterQuery.hasQueries()) {
            BoolQueryBuilder builder = regBoolCQ(mustQuery.getQueryBuilderList(), shouldQuery.getQueryBuilderList(),
                    mustNotQuery.getQueryBuilderList(), filterQuery.getQueryBuilderList());
            if (opLambda != null) {
                opLambda.callback(builder);

            }
            if (values.length > 4 && "all".equals(values[4])) {
                return FormatType.SCROLL;
            }
            return FormatType.SEARCH;
        }
        if ("labels".equals(type)) {
            return FormatType.LABEL;
        }
        if ("popular-words".equals(type)) {
            return FormatType.POPULARWORD;
        }
        if ("favorites".equals(type)) {

        if (mustQuery.hasQueries() || shouldQuery.hasQueries() || mustNotQuery.hasQueries() || filterQuery.hasQueries()) {
            BoolQueryBuilder builder = regBoolCQ(mustQuery.getQueryBuilderList(), shouldQuery.getQueryBuilderList(),
                    mustNotQuery.getQueryBuilderList(), filterQuery.getQueryBuilderList());
            if (opLambda != null) {
                opLambda.callback(builder);

        block.setLength(0);
        prevToken = null;
        while (true) {
            if (ch != -1) {
                ch = readCharFromBuffer();
            }
            if (ch == -1) {
                break;
            } else if (!isDelimiter(ch)) {
                block.append((char) ch);
            } else if (block.length() > 0) {
                break;
            } else {
                blkStart++;

        if (log.isTraceEnabled()) {
            log.trace("Acquire tree " + usage + " " + this);
        }

        if (track && this.traceResource) {
            synchronized (this.acquires) {
                this.acquires.add(truncateTrace(Thread.currentThread().getStackTrace()));
            }
        }

        if (usage == 1) {
            synchronized (this) {