protected MessageHandlerFunc GetMessageHandler(IBindingContext context, MethodInfo method)
{
var allowBinding = false;
MiddlewareHelper.Go(bindingMiddleware,
(handler, next) => handler.Handle(context, next),
() =>
{
allowBinding = true;
});
if (!allowBinding)
{
return(null);
}
if (context.MessageClass == null)
{
throw new TopologyConfigurationException($"Method {method.Name} in controller {method.DeclaringType?.Name} does not resolve to a message class");
}
var invalidBindings = context.Parameters.Where(p => !p.HasBinding).ToList();
// ReSharper disable once InvertIf
if (invalidBindings.Count > 0)
{
var parameterNames = string.Join(", ", invalidBindings.Select(p => p.Info.Name));
throw new TopologyConfigurationException($"Method {method.Name} in controller {method.DeclaringType?.Name} has unknown parameters: {parameterNames}");
}
var resultHandler = ((IBindingResultAccess)context.Result).GetHandler();
return(WrapMethod(method, context.Parameters.Select(p => ((IBindingParameterAccess)p).GetBinding()), resultHandler));
}
/// <inheritdoc />
public void ApplyBindingMiddleware(IControllerBindingContext context, Action lastHandler)
{
MiddlewareHelper.Go(bindingMiddleware,
(handler, next) => handler.Handle(context, next),
lastHandler);
}