}

// Parses signature version '4' query string of the following form.
//
//	querystring = X-Amz-Algorithm=algorithm
//	querystring += &X-Amz-Credential= urlencode(accessKey + '/' + credential_scope)
//	querystring += &X-Amz-Date=date
//	querystring += &X-Amz-Expires=timeout interval
//	querystring += &X-Amz-SignedHeaders=signed_headers
//	querystring += &X-Amz-Signature=signature
//

        final String urlField = fessConfig.getIndexFieldUrl();
        final String queryString = "*" + text + "*";
        context.addFieldLog(urlField, queryString);
        context.addHighlightedQuery(text);
        return QueryBuilders.wildcardQuery(urlField, queryString).boost(boost);
    }

    /**
     * Converts a term query ending with asterisk to a prefix query.
     *

        final String queryString = queryLog.getQueryString();
        final String filterQueryString = queryLog.getFilterQueryString();

        final List<String> tagList = new ArrayList<>();
        for (final String tagFieldName : tagFieldNames) {
            tagList.addAll(Arrays.asList(SuggestUtil.parseQuery(queryString, tagFieldName)));
            if (filterQueryString != null) {

    }

    /**
     * Deletes suggest items by a query string.
     * @param queryString The query string.
     * @return The SuggestDeleteResponse.
     */
    public SuggestDeleteResponse deleteByQuery(final String queryString) {
        return deleteByQuery(QueryBuilders.queryStringQuery(queryString).defaultOperator(Operator.AND));
    }

    /**
     * Deletes suggest items by a query builder.