Ejemplo n.º 1
0
        // Searches for a TypedRpcException in an exception chain.
        internal static bool FindInChain(Exception exception, out TypedRpcException typedRpcException)
        {
            // Initializations
            typedRpcException = null;

            // Looks for TypedRpc Exceptions.
            while (exception != null && !(exception is TypedRpcException))
            {
                // Keeps searching.
                exception = exception.InnerException;
            }

            return(typedRpcException != null);
        }
Ejemplo n.º 2
0
        // Handles requests.
        public virtual async Task <JsonResponse> InvokeMethod(IOwinContext context)
        {
            // Declarations
            string       data;
            JsonError    error;
            JsonRequest  jRequest;
            JsonResponse jResponse;
            object       handler;
            MethodInfo   methodInfo;

            object[] parameters;
            object   result;

            // Initializations
            data     = null;
            jRequest = null;

            try
            {
                // Retrieves method.
                error = GetMethod(context, out data, out jRequest, out handler, out methodInfo, out parameters);

                // Checks for any error.
                if (error != null)
                {
                    return(MountError(jRequest == null ? null : jRequest.Id, error));
                }

                // Invokes method.
                result = InvokeMethod(handler, methodInfo, parameters);

                // Checks if result is async.
                if (result is Task)
                {
                    // Awaits method.
                    await(Task) result;

                    // Retrieves result value.
                    result = result.GetType().GetProperty("Result").GetValue(result);

                    // Checks if it is void.
                    if (result.ToString() == "System.Threading.Tasks.VoidTaskResult")
                    {
                        result = null;
                    }
                }

                // Initializes response.
                jResponse    = new JsonResponse();
                jResponse.Id = jRequest.Id;

                // Checks if is a wrapped result.
                if (result != null && result.GetType().IsGenericType&& result.GetType().GetGenericTypeDefinition() == typeof(TypedRpcReturn <>))
                {
                    // Checks if result is error.
                    jResponse.Error = result.GetType().GetProperty("Error").GetValue(result) as JsonError;
                    if (jResponse.Error == null)
                    {
                        // Retrieves result value.
                        jResponse.Result = result.GetType().GetProperty("Data").GetValue(result);
                    }
                }
                else
                {
                    jResponse.Result = result;
                }

                return(jResponse);
            }
            catch (Exception exception)
            {
                // Declarations
                TypedRpcException typedRpcException;

                // Looks for a TypedRpcExceptions.
                if (TypedRpcException.FindInChain(exception, out typedRpcException))
                {
                    return(MountError(jRequest.Id, typedRpcException.Error));
                }

                // Triggers exception event.
                Options.OnCatch?.Invoke(data, jRequest, context, exception);

                // Handles error.
                return(MountError(jRequest.Id, JsonError.ERROR_INTERNAL));
            }
        }