/// <summary>
/// Combines a variable number of streams into one stream.
/// </summary>
/// <param name="streams">The streams to combine.</param>
/// <returns>A variable number of <b>streams</b> combined into one <b>stream</b>.</returns>
public static Stream CombineStreams(params Stream[] streams)
{
if (streams == null)
{
throw new ArgumentNullException(nameof(streams));
}
List <byte[]> bytes = new List <byte[]>();
foreach (Stream stream in streams)
{
byte[] bytesFromStream = new byte[stream.Length];
using (stream) // close and dispose the stream, as we are returning a new combined stream
{
stream.Read(bytesFromStream, 0, (int)stream.Length);
bytes.Add(bytesFromStream);
}
}
MemoryStream output;
MemoryStream tempOutput = null;
try
{
tempOutput = new MemoryStream(ByteUtility.CombineByteArrays(bytes.ToArray()));
tempOutput.Position = 0;
output = tempOutput;
tempOutput = null;
}
finally
{
if (tempOutput != null)
{
tempOutput.Dispose();
}
}
output.Position = 0;
return(output);
}
