public async Task <Message> Deserialize(TransportMessage transportMessage)
{
string contentEncoding;
if (!transportMessage.Headers.TryGetValue(Headers.ContentEncoding, out contentEncoding))
{
return(await _serializer.Deserialize(transportMessage));
}
if (contentEncoding != GzipEncodingHeader)
{
var message = $"The message {transportMessage.GetMessageLabel()} has a '{Headers.ContentEncoding}' with the" +
$" value '{contentEncoding}', but this serializer decorator only knows how to decompress" +
$" '{GzipEncodingHeader}'";
throw new ArgumentException(message);
}
var headers = transportMessage.Headers.Clone();
var compressedBody = transportMessage.Body;
headers.Remove(Headers.ContentEncoding);
var uncompressedBody = _zipper.Unzip(compressedBody);
var uncompressedTransportMessage = new TransportMessage(headers, uncompressedBody);
return(await _serializer.Deserialize(uncompressedTransportMessage));
}
void PossiblyDecompressTransportMessage(IncomingStepContext context)
{
var transportMessage = context.Load <TransportMessage>();
string contentEncoding;
if (!transportMessage.Headers.TryGetValue(Headers.ContentEncoding, out contentEncoding))
{
return;
}
if (contentEncoding != ZipMessagesOutgoingStep.GzipEncodingHeader)
{
var message = $"The message {transportMessage.GetMessageLabel()} has a '{Headers.ContentEncoding}' with the" +
$" value '{contentEncoding}', but this middleware only knows how to decompress" +
$" '{ZipMessagesOutgoingStep.GzipEncodingHeader}'";
throw new ArgumentException(message);
}
var headers = transportMessage.Headers.Clone();
var compressedBody = transportMessage.Body;
headers.Remove(Headers.ContentEncoding);
var body = _zipper.Unzip(compressedBody);
context.Save(new TransportMessage(headers, body));
}
