/// <summary>
/// Gets a <see cref="Stream"/> that automatically cleans up
/// after itself.
/// </summary>
/// <returns>A stream that allows to write and read temporary
/// data.</returns>
public TempStream CreateTempStream()
{
//create unique file name using a GUID
string fileName = Guid.NewGuid().ToString();
var tempFilePath = TempFileUtil.CreateTempFilePath(TempFileRootDirectory, fileName, "tmp");
//return temp stream
var fi = new FileInfo(tempFilePath);
return(new TempFileStream(fi));
}