AsyncDuplexStreamingCall <TRequest, TResponse>(Method <TRequest, TResponse> method, string host, CallOptions options)
{
// No channel affinity feature for duplex streaming call.
ChannelRef channelRef = GetChannelRef();
var originalCall = channelRef.CallInvoker.AsyncDuplexStreamingCall(method, host, options);
// Decrease the active streams count once the streaming response finishes its final batch.
var gcpResponseStream = new GcpClientResponseStream <TRequest, TResponse>(
originalCall.ResponseStream,
(resp) => channelRef.ActiveStreamCountDecr());
// Create a wrapper of the original AsyncDuplexStreamingCall.
return(new AsyncDuplexStreamingCall <TRequest, TResponse>(
originalCall.RequestStream,
gcpResponseStream,
originalCall.ResponseHeadersAsync,
() => originalCall.GetStatus(),
() => originalCall.GetTrailers(),
() => originalCall.Dispose()));
}
AsyncServerStreamingCall <TRequest, TResponse>(Method <TRequest, TResponse> method, string host, CallOptions options, TRequest request)
{
_affinityByMethod.TryGetValue(method.FullName, out AffinityConfig affinityConfig);
ChannelRef channelRef = PreProcess(affinityConfig, request);
var originalCall = channelRef.CallInvoker.AsyncServerStreamingCall(method, host, options, request);
// Executes affinity postprocess once the streaming response finishes its final batch.
var gcpResponseStream = new GcpClientResponseStream <TRequest, TResponse>(
originalCall.ResponseStream,
(resp) => PostProcess(affinityConfig, channelRef, request, resp));
// Create a wrapper of the original AsyncServerStreamingCall.
return(new AsyncServerStreamingCall <TResponse>(
gcpResponseStream,
originalCall.ResponseHeadersAsync,
() => originalCall.GetStatus(),
() => originalCall.GetTrailers(),
() => originalCall.Dispose()));
}