public IServiceEndpointBinder <TService> GenerateServiceEndpointBinder <TService>(Type?serviceInstanceType)
{
if (serviceInstanceType != null && !ServiceContract.IsServiceInstanceType(serviceInstanceType))
{
throw new ArgumentOutOfRangeException(nameof(serviceInstanceType));
}
var serviceType = typeof(TService);
ContractDescription description;
Type contractType;
Type channelType;
lock (ProxyAssembly.SyncRoot)
{
(description, contractType) = GenerateContract(serviceType);
channelType = ProxyAssembly.DefaultModule.GetType(ContractDescription.GetEndpointClassName(serviceType), false, false) !;
if (channelType == null)
{
var serviceBuilder = new EmitServiceEndpointBuilder(description);
channelType = serviceBuilder.Build(ProxyAssembly.DefaultModule, Logger);
}
}
return(new EmitServiceEndpointBinder <TService>(description, serviceInstanceType, contractType, channelType, Logger));
}
public void BeforeAllTest()
{
var description = new ContractDescription(typeof(IContract));
var contractType = new EmitContractBuilder(description).Build(ProxyAssembly.DefaultModule, nameof(EmitServiceEndpointBuilderTest) + "Contract");
var sut = new EmitServiceEndpointBuilder(description);
ChannelType = sut.Build(ProxyAssembly.DefaultModule, className: nameof(EmitServiceEndpointBuilderTest) + "Channel");
var contract = EmitContractBuilder.CreateFactory(contractType)(DataContractMarshallerFactory.Default);
Channel = EmitServiceEndpointBuilder.CreateFactory(ChannelType)();
}
public void Bind(IServiceMethodBinder <TService> binder)
{
var contract = EmitContractBuilder.CreateFactory(_contractType)(binder.MarshallerFactory);
var channelInstance = EmitServiceEndpointBuilder.CreateFactory(_channelType)();
var serviceType = typeof(TService);
foreach (var interfaceDescription in _description.Services)
{
foreach (var operation in interfaceDescription.Operations)
{
var message = operation.Message;
var channelMethod = _channelType.InstanceMethod(operation.OperationName);
var metadata = TryGetMethodMetadata(interfaceDescription.InterfaceType, message.Operation);
var grpcMethodMethod = (IMethod)_contractType.InstanceFiled(operation.GrpcMethodName).GetValue(contract);
object?requestHeaderMarshaller = null;
if (message.HeaderRequestType != null)
{
requestHeaderMarshaller = _contractType.InstanceFiled(operation.GrpcMethodInputHeaderName).GetValue(contract);
}
object?responseHeaderMarshaller = null;
if (message.HeaderResponseType != null)
{
responseHeaderMarshaller = _contractType.InstanceFiled(operation.GrpcMethodOutputHeaderName).GetValue(contract);
}
_logger?.LogDebug("Bind service method {0}.{1}.", serviceType.FullName, message.Operation.Name);
if (grpcMethodMethod.Type == MethodType.Unary)
{
var addMethod = _serviceBinderAddUnaryMethod
.MakeGenericMethod(message.RequestType, message.ResponseType)
.CreateDelegate <Action <IServiceMethodBinder <TService>, IMethod, MethodInfo, IList <object>, MethodInfo, object> >();
addMethod(binder, grpcMethodMethod, message.Operation, metadata, channelMethod, channelInstance);
}
else if (grpcMethodMethod.Type == MethodType.ClientStreaming)
{
var addMethod = _serviceBinderAddClientStreamingMethod
.MakeGenericMethod(
message.HeaderRequestType ?? typeof(Message),
message.RequestType.GenericTypeArguments[0],
message.ResponseType)
.CreateDelegate <Action <IServiceMethodBinder <TService>, IMethod, MethodInfo, object?, IList <object>, MethodInfo, object> >();
addMethod(binder, grpcMethodMethod, message.Operation, requestHeaderMarshaller, metadata, channelMethod, channelInstance);
}
else if (grpcMethodMethod.Type == MethodType.ServerStreaming)
{
var addMethod = _serviceBinderAddServerStreamingMethod
.MakeGenericMethod(
message.RequestType,
message.HeaderResponseType ?? typeof(Message),
message.ResponseType.GenericTypeArguments[0])
.CreateDelegate <Action <IServiceMethodBinder <TService>, IMethod, MethodInfo, object?, IList <object>, MethodInfo, object> >();
addMethod(binder, grpcMethodMethod, message.Operation, responseHeaderMarshaller, metadata, channelMethod, channelInstance);
}
else if (grpcMethodMethod.Type == MethodType.DuplexStreaming)
{
var addMethod = _serviceBinderAddDuplexStreamingMethod
.MakeGenericMethod(
message.HeaderRequestType ?? typeof(Message),
message.RequestType.GenericTypeArguments[0],
message.HeaderResponseType ?? typeof(Message),
message.ResponseType.GenericTypeArguments[0])
.CreateDelegate <Action <IServiceMethodBinder <TService>, IMethod, MethodInfo, object?, object?, IList <object>, MethodInfo, object> >();
addMethod(binder, grpcMethodMethod, message.Operation, requestHeaderMarshaller, responseHeaderMarshaller, metadata, channelMethod, channelInstance);
}
else
{
throw new NotImplementedException("{0} operation is not implemented.".FormatWith(grpcMethodMethod.Type));
}
}
}
}
