* @param defaultField The default field to use if field is the default placeholder.
     * @param field The field name to check.
     * @return The actual field name to use for searching.
     */
    protected String getSearchField(final String defaultField, final String field) {
        if (Constants.DEFAULT_FIELD.equals(field) && defaultField != null) {
            return defaultField;
        }
        return field;
    }

    /**

     * @return the converted QueryBuilder
     */
    protected QueryBuilder convertTermQuery(final QueryContext context, final TermQuery termQuery, final float boost) {
        final String field = getSearchField(context.getDefaultField(), termQuery.getTerm().field());
        final String text = termQuery.getTerm().text();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();