public ServerProcessing ProcessMessage(IServerChannelSinkStack sinkStack,
                                               IMessage requestMsg,
                                               ITransportHeaders requestHeaders,
                                               Stream requestStream,
                                               out IMessage responseMsg,
                                               out ITransportHeaders responseHeaders,
                                               out Stream responseStream)
        {
            bool isCompressed = false;


            // decompress the stream if necessary
            String xcompress = (String)requestHeaders["X-Compress"];

            if (xcompress != null && xcompress == "yes")
            {
                requestStream = CompressionHelper.GetUncompressedStreamCopy(requestStream);
                isCompressed  = true;
            }


            // Pushing onto stack and forwarding the call.
            // The state object contains true if the request has been compressed,
            // else false.
            sinkStack.Push(this, isCompressed);

            ServerProcessing srvProc = _nextSink.ProcessMessage(sinkStack,
                                                                requestMsg,
                                                                requestHeaders,
                                                                requestStream,
                                                                out responseMsg,
                                                                out responseHeaders,
                                                                out responseStream);

            if (srvProc == ServerProcessing.Complete)
            {
                // compressing the response if necessary
                if (isCompressed)
                {
                    responseStream = CompressionHelper.GetCompressedStreamCopy(responseStream);
                    responseHeaders["X-Compress"] = "yes";
                }
            }
            // returning status information
            return(srvProc);
        }
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        public void AsyncProcessResponse(IClientResponseChannelSinkStack sinkStack,
                                         object state,
                                         ITransportHeaders headers,
                                         Stream stream)
        {
            // decompress the stream if necessary
            String xcompress = (String)headers["X-Compress"];

            if (xcompress != null && xcompress == "yes")
            {
                stream = CompressionHelper.GetUncompressedStreamCopy(stream);
            }


            // forward the request
            sinkStack.AsyncProcessResponse(headers, stream);
        }
        public void AsyncProcessResponse(IServerResponseChannelSinkStack sinkStack,
                                         object state,
                                         IMessage msg,
                                         ITransportHeaders headers,
                                         Stream stream)
        {
            // fetching the flag from the async-state
            bool hasBeenCompressed = (bool)state;

            // compressing the response if necessary
            if (hasBeenCompressed)
            {
                stream = CompressionHelper.GetCompressedStreamCopy(stream);
                headers["X-Compress"] = "yes";
            }


            // forwarding to the stack for further processing
            sinkStack.AsyncProcessResponse(msg, headers, stream);
        }
        public void ProcessMessage(IMessage msg,
                                   ITransportHeaders requestHeaders,
                                   Stream requestStream,
                                   out ITransportHeaders responseHeaders,
                                   out Stream responseStream)
        {
            // generate a compressed stream using NZipLib

            requestStream =
                CompressionHelper.getCompressedStreamCopy(requestStream);

            // forward the call to the next sink
            _nextSink.ProcessMessage(msg,
                                     requestHeaders,
                                     requestStream,
                                     out responseHeaders,
                                     out responseStream);

            // deflate the response
            responseStream =
                CompressionHelper.getUncompressedStreamCopy(responseStream);
        }
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        public void ProcessMessage(IMessage msg,
                                   ITransportHeaders requestHeaders,
                                   Stream requestStream,
                                   out ITransportHeaders responseHeaders,
                                   out Stream responseStream)
        {
            requestStream = CompressionHelper.GetCompressedStreamCopy(requestStream);
            requestHeaders["X-Compress"] = "yes";

            // forward the call to the next sink
            _nextSink.ProcessMessage(msg,
                                     requestHeaders,
                                     requestStream,
                                     out responseHeaders,
                                     out responseStream);

            // deflate the response if necessary
            String xcompress = (String)responseHeaders["X-Compress"];

            if (xcompress != null && xcompress == "yes")
            {
                responseStream = CompressionHelper.GetUncompressedStreamCopy(responseStream);
            }
        }