/// <summary>
        /// Construct output filespec from request type, donor code,
        /// and year. Return full path for this filespec.
        /// </summary>
        /// <returns></returns>
        protected override string GetOutputFileSpec()
        {
            string cln_rt  = TextUtils.CleanString(this.RequestType);
            string cln_dcd = TextUtils.CleanString(this.Dnr.code).ToUpper();
            string name    = string.Format(
                Properties.Resources.BagLabelBaseFilename,
                this.Year, cln_rt, cln_dcd
                );

            return(Path.Combine(this.TargetFolder, name));
        }