* @param fields array of fields to search in
     * @param excludes array of words to exclude from results
     * @return list of popular words matching the criteria
     */
    public List<String> getWordList(final SearchRequestType searchRequestType, final String seed, final String[] tags, final String[] roles,
            final String[] fields, final String[] excludes) {

            if (StringUtil.isNotBlank(key)) {
                tagList.add(key);
            }
            runtime.registerData("popularWords", popularWordHelper.getWordList(SearchRequestType.SEARCH, null,
                    tagList.toArray(new String[tagList.size()]), null, null, null));
        }
        return super.hookBefore(runtime);
    }

    /**

        final StringBuilder buf = new StringBuilder(255);
        try {
            final List<String> popularWordList =
                    popularWordHelper.getWordList(SearchRequestType.JSON, seed, tags, null, fields, StringUtil.EMPTY_STRINGS);
            buf.append("\"record_count\":").append(popularWordList.size()).append(',');
            buf.append("\"data\":[");