/// <summary>
        /// This method is the delegate called when an export is to be handled using a plugin.
        /// </summary>
        /// <returns>True if the operation succeeded, False otherwise.</returns>
        private void ExportResults(WatcherOutputPlugin plugin, WatcherResultCollection results, String filename)
        {
            // Perform the Save operation.  Not every save operation will return a
            // stream; therefore, a null return value is not necessarily an error.
            //
            // TODO: This class is a candidate for redesign as it handles exports with different semantics (e.g., TFS)
            Stream outputStream = plugin.SaveResult(results);

            if (outputStream != null)
            {
                using (FileStream fs = new FileStream(filename, FileMode.Create))
                {
                    Utility.ReadWriteStream(outputStream, fs);
                }
            }
        }