/// <summary>
/// Writes an object to the message's body. First applies the base formatter, then compresses.
/// </summary>
/// <param name="message">The message to be written to</param>
/// <param name="obj">The message to write</param>
public void Write(Message message, object obj)
{
Message clearMessage = new Message();
m_BaseFormatter.Write(clearMessage, obj);
message.BodyType = clearMessage.BodyType;
// In case the original body length is less than 1 kilobyte - don't compress it
long uncompressedBodyLength = clearMessage.BodyStream.Length;
if (uncompressedBodyLength <= 1024)
{
message.BodyStream = clearMessage.BodyStream;
message.BodyStream.Position = 0;
return;
}
MemoryStream compressedBodyMemoryStream = new MemoryStream();
using (DeflateStream compressor = new DeflateStream(compressedBodyMemoryStream, CompressionMode.Compress, true))
{
MessageHeader messageHeader = new MessageHeader(uncompressedBodyLength);
messageHeader.CopyTo(compressedBodyMemoryStream); // Header goes uncompressed!
clearMessage.BodyStream.Position = 0;
clearMessage.BodyStream.CopyTo(compressor);
}
long compressedBodyLength = compressedBodyMemoryStream.Length;
if (compressedBodyLength < uncompressedBodyLength)
{
message.BodyStream = compressedBodyMemoryStream;
message.BodyStream.Position = 0;
}
else
{
message.BodyStream = clearMessage.BodyStream;
message.BodyStream.Position = 0;
}
}