*/
    protected Map<String, String[]> parseFieldFilters(final HttpServletRequest request) {
        final Map<String, String[]> fields = new HashMap<>();
        final String[] labels = request.getParameterValues("fields.label");
        if (labels != null && labels.length > 0) {
            // Validate against configured label types (union of request locale and ROOT for robustness)

        if (StringUtil.isNotBlank(key)) {
            tags = ArrayUtils.addAll(tags, key);
        }
        final String[] fields = request.getParameterValues("field");

        final PopularWordHelper popularWordHelper = ComponentUtil.getPopularWordHelper();

        final StringBuilder buf = new StringBuilder(255);
        try {