public GrpcWorker(IFunctionsApplication application, FunctionRpcClient rpcClient, GrpcHostChannel outputChannel, IInvocationFeaturesFactory invocationFeaturesFactory,
IOutputBindingsInfoProvider outputBindingsInfoProvider, IMethodInfoLocator methodInfoLocator, IOptions <GrpcWorkerStartupOptions> startupOptions, IOptions <WorkerOptions> workerOptions)
{
if (outputChannel == null)
{
throw new ArgumentNullException(nameof(outputChannel));
}
_outputReader = outputChannel.Channel.Reader;
_outputWriter = outputChannel.Channel.Writer;
_application = application ?? throw new ArgumentNullException(nameof(application));
_rpcClient = rpcClient ?? throw new ArgumentNullException(nameof(rpcClient));
_invocationFeaturesFactory = invocationFeaturesFactory ?? throw new ArgumentNullException(nameof(invocationFeaturesFactory));
_outputBindingsInfoProvider = outputBindingsInfoProvider ?? throw new ArgumentNullException(nameof(outputBindingsInfoProvider));
_methodInfoLocator = methodInfoLocator ?? throw new ArgumentNullException(nameof(methodInfoLocator));
_startupOptions = startupOptions ?? throw new ArgumentNullException(nameof(startupOptions));
_serializer = workerOptions.Value.Serializer ?? throw new InvalidOperationException(nameof(workerOptions.Value.Serializer));
}
internal static async Task <InvocationResponse> InvocationRequestHandlerAsync(InvocationRequest request, IFunctionsApplication application,
IInvocationFeaturesFactory invocationFeaturesFactory, ObjectSerializer serializer, IOutputBindingsInfoProvider outputBindingsInfoProvider)
{
FunctionContext? context = null;
FunctionInvocation?invocation = null;
InvocationResponse response = new()
{
InvocationId = request.InvocationId
};
try
{
invocation = new GrpcFunctionInvocation(request);
IInvocationFeatures invocationFeatures = invocationFeaturesFactory.Create();
invocationFeatures.Set <FunctionInvocation>(invocation);
context = application.CreateContext(invocationFeatures);
invocationFeatures.Set <IFunctionBindingsFeature>(new GrpcFunctionBindingsFeature(context, request, outputBindingsInfoProvider));
await application.InvokeFunctionAsync(context);
var functionBindings = context.GetBindings();
foreach (var binding in functionBindings.OutputBindingData)
{
var parameterBinding = new ParameterBinding
{
Name = binding.Key
};
if (binding.Value is not null)
{
parameterBinding.Data = await binding.Value.ToRpcAsync(serializer);
}
response.OutputData.Add(parameterBinding);
}
if (functionBindings.InvocationResult != null)
{
TypedData?returnVal = await functionBindings.InvocationResult.ToRpcAsync(serializer);
response.ReturnValue = returnVal;
}
response.Result = new StatusResult
{
Status = StatusResult.Types.Status.Success
};
}
catch (Exception ex)
{
response.Result = new StatusResult
{
Exception = ex.ToRpcException(),
Status = StatusResult.Types.Status.Failure
};
}
finally
{
(context as IDisposable)?.Dispose();
}
return(response);
}
public GrpcFunctionBindingsFeature(FunctionContext context, InvocationRequest invocationRequest, IOutputBindingsInfoProvider outputBindingsInfoProvider)
{
_context = context ?? throw new ArgumentNullException(nameof(context));
_invocationRequest = invocationRequest ?? throw new ArgumentNullException(nameof(invocationRequest));
_outputBindingsInfoProvider = outputBindingsInfoProvider ?? throw new ArgumentNullException(nameof(outputBindingsInfoProvider));
}