public void OnServiceMethodDiscovery(ServiceMethodProviderContext <TService> context)
{
var bindMethodInfo = BindMethodFinder.GetBindMethod(typeof(TService));
// Invoke BindService(ServiceBinderBase, BaseType)
if (bindMethodInfo != null)
{
// The second parameter is always the service base type
var serviceParameter = bindMethodInfo.GetParameters()[1];
ServiceDescriptor?serviceDescriptor = null;
try
{
serviceDescriptor = ServiceDescriptorHelpers.GetServiceDescriptor(bindMethodInfo.DeclaringType !);
}
catch (Exception ex)
{
Log.ServiceDescriptorError(_logger, typeof(TService), ex);
}
if (serviceDescriptor != null)
{
var binder = new JsonTranscodingProviderServiceBinder <TService>(
context,
new ReflectionServiceInvokerResolver <TService>(serviceParameter.ParameterType),
serviceDescriptor,
_globalOptions,
_serviceOptions,
_loggerFactory,
_serviceActivator,
_JsonTranscodingOptions);
try
{
bindMethodInfo.Invoke(null, new object?[] { binder, null });
}
catch (Exception ex)
{
throw new InvalidOperationException($"Error binding gRPC service '{typeof(TService).Name}'.", ex);
}
}
}
else
{
Log.BindMethodNotFound(_logger, typeof(TService));
}
}
private JsonTranscodingProviderServiceBinder <DynamicService> CreateJsonTranscodingBinder <TRequest, TResponse>(
MethodDescriptor methodDescriptor,
ServiceMethodProviderContext <DynamicService> context,
DynamicServiceInvokerResolver invokerResolver)
where TRequest : class, IMessage, new()
where TResponse : class, IMessage, new()
{
var JsonTranscodingOptions = _serviceProvider.GetRequiredService <IOptions <GrpcJsonTranscodingOptions> >().Value;
var binder = new JsonTranscodingProviderServiceBinder <DynamicService>(
context,
invokerResolver,
methodDescriptor.Service,
_serviceProvider.GetRequiredService <IOptions <GrpcServiceOptions> >().Value,
_serviceProvider.GetRequiredService <IOptions <GrpcServiceOptions <DynamicService> > >().Value,
_serviceProvider.GetRequiredService <ILoggerFactory>(),
_serviceProvider.GetRequiredService <IGrpcServiceActivator <DynamicService> >(),
JsonTranscodingOptions);
return(binder);
}
