IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream,
out IMessage responseMsg, out ITransportHeaders responseHeaders, out Stream responseStream)
{
+ // Check whether the request was already processed by another
+ // formatter sink and pass the request to the next sink if so.
+ if (requestMsg != null)
+ return next_sink.ProcessMessage (sinkStack,
+ requestMsg,
+ requestHeaders,
+ requestStream,
+ out responseMsg,
+ out responseHeaders,
+ out responseStream);
+
+ // Check whether the request is suitable for this formatter
+ // and pass the request to the next sink if not.
+ // Note that a null content-type is handled as suitable,
+ // otherwise no other sink will be able to handle the request.
+ string contentType = requestHeaders["Content-Type"] as string;
+ if (contentType != null && contentType != "application/octet-stream") {
+ try {
+ return next_sink.ProcessMessage (sinkStack,
+ requestMsg,
+ requestHeaders,
+ requestStream,
+ out responseMsg,
+ out responseHeaders,
+ out responseStream);
+ } catch {
+ // Let this formatter handle the exception.
+ }
+ }
+
sinkStack.Push (this, null);
ServerProcessing res;
responseHeaders = null;
responseStream = null;
}
-
+
if (res == ServerProcessing.Complete)
{
- responseStream = null;
- responseHeaders = new TransportHeaders();
-
- if (sinkStack != null) responseStream = sinkStack.GetResponseStream (responseMsg, responseHeaders);
- if (responseStream == null) responseStream = new MemoryStream();
-
- _binaryCore.Serializer.Serialize (responseStream, responseMsg);
+ for (int n=0; n<3; n++) {
+ responseStream = null;
+ responseHeaders = new TransportHeaders();
+
+ if (sinkStack != null) responseStream = sinkStack.GetResponseStream (responseMsg, responseHeaders);
+ if (responseStream == null) responseStream = new MemoryStream();
+
+ try {
+ _binaryCore.Serializer.Serialize (responseStream, responseMsg);
+ break;
+ } catch (Exception ex) {
+ if (n == 2) throw ex;
+ else responseMsg = new ReturnMessage (ex, (IMethodCallMessage)requestMsg);
+ }
+ }
+
if (responseStream is MemoryStream) responseStream.Position = 0;
+
sinkStack.Pop (this);
}