}
                queryBuf.append(')');
            }
        }));

        final String baseQuery = queryBuf.toString().trim();
        if (StringUtil.isBlank(sortField)) {
            return baseQuery;
        }
        return baseQuery + " sort:" + sortField;
    }

    /**
     * Appends a query string to the query buffer with proper formatting.

     * @param page The HTML page
     * @return The base path for the virtual host
     */
    protected String getVirtualHostBasePath(final String s, final HtmlNext page) {
        return StringUtil.isBlank(s) ? StringUtil.EMPTY : "/" + s;
    }

    /**
     * Gets the virtual host key from the current request.
     * The key is determined by matching HTTP headers against configured virtual hosts.
     *

    public void addElevateWord(final String word, final String reading, final String[] tags, final String[] permissions, final Float boost,
            final boolean apply) {
        final String[] readings;
        if (StringUtil.isBlank(reading)) {
            readings = word.replace("　", TEXT_SEP).replaceAll(TEXT_SEP + "+", TEXT_SEP).split(TEXT_SEP);
        } else {

    protected boolean isEmptyArray(final String[] values) {
        if (values == null || values.length == 0) {
            return true;
        }
        return stream(values).get(stream -> stream.allMatch(StringUtil::isBlank));
    }

    /**
     * Simplifies the array.
     *
     * @param values The array.
     * @return The simplified array.
     */
    protected static String[] simplifyArray(final String[] values) {

    }

    @Override
    public Integer getTimeToLive() {
        String value = getHandlerParameterMap().get("time_to_live");
        if (StringUtil.isBlank(value)) {
            value = getHandlerParameterMap().get("timeToLive"); // TODO remove
            if (StringUtil.isBlank(value)) {
                return null;
            }
            logger.warn("timeToLive is deprecated. Please use time_to_live.");
        }

        // Test with special numeric values
        OptionalEntity<Double> nanOpt = OptionalUtil.ofNullable(Double.NaN);
        assertTrue(nanOpt.isPresent());
        assertTrue(Double.isNaN(nanOpt.get()));

        OptionalEntity<Double> infinityOpt = OptionalUtil.ofNullable(Double.POSITIVE_INFINITY);
        assertTrue(infinityOpt.isPresent());
        assertTrue(Double.isInfinite(infinityOpt.get()));

    protected String crawlingConfigInternal(final CrawlingConfigForm form) {

        String configName = form.crawlingConfigName;
        String configPath = form.crawlingConfigPath.trim();
        if (StringUtil.isBlank(configName)) {
            configName = StringUtils.abbreviate(configPath, 30);
        }

        // normalize
        final StringBuilder buf = new StringBuilder(1000);

    #  If you use synchronizer and specify this property, no need to refresh(F5) your eclipse project.
    #  The projectName can be set plural names by slash '/'. e.g. sea/land
    #
    #; refreshMap = map:{
    #    ; projectName = $$AutoDetect$$
    #    ; requestUrl = http://localhost:8386/
    #}
    # - - - - - - - - - -/

     * @return CURL request object or null if header is invalid
     */
    private CurlRequest getCurlRequest(final String header) {
        if (StringUtil.isBlank(header)) {
            return null;
        }

        final String[] values = header.split(" ");
        if (values.length != 2) {
            return null;
        }

        final String path;

     */
    protected String getThemeName(final Artifact artifact) {
        final String themeName = artifact.getName().substring(ArtifactType.THEME.getId().length() + 1);
        if (StringUtil.isBlank(themeName)) {
            throw new ThemeException("Theme name is empty: " + artifact);
        }
        return themeName;
    }

    /**
     * Recursively deletes a directory and all its contents.