Рефакторинг модуля выполнения и экстрактора запросов

mROA/Implementation/Backend/BasicExecutionModule.cs

@@ -36,38 +36,19 @@ namespace mROA.Implementation.Backend
 
             try
             {
-                if (_cancellationRepo is null)
-                    throw new NullReferenceException("Method repository was not defined");
-
-                if (_methodRepo is null)
-                    throw new NullReferenceException("Method repository was not defined");
-
-                if (contextRepository is null)
-                    throw new NullReferenceException("Context repository was not defined");
-
+                ThrowIfNotInjected(contextRepository);
                 if (command is CancelRequest)
                 {
 #if TRACE
                 Console.WriteLine("Final cancelling request");
 #endif
-                    var cts = _cancellationRepo.GetCancellation(command.Id);
-                    if (cts == null)
-                        throw new NullReferenceException("Can't find cancellation for this request");
-                    cts.Cancel();
-                    _cancellationRepo.FreeCancelation(command.Id);
-
-                    return new FinalCommandExecution
-                    {
-                        Id = command.Id
-                    };
+                    CancelExecution(command);
                 }
 
-                var invoker = _methodRepo.GetMethod(command.CommandId);
+                var invoker = _methodRepo!.GetMethod(command.CommandId);
                 if (invoker == null)
                     throw new Exception($"Command {command.CommandId} not found");
 
-                IContextRepository repository;
-
                 var context = command.ObjectId.ContextId != -1
                     ? contextRepository.GetObject<object>(command.ObjectId)
                     : contextRepository.GetSingleObject(invoker.SuitableType, command.ObjectId.OwnerId);
@@ -83,7 +64,7 @@ namespace mROA.Implementation.Backend
                     castedParams = new object[invoker.ParameterTypes.Length];
                     for (var i = 0; i < castedParams.Length; i++)
                     {
-                        castedParams[i] = _serialization.Cast(command.Parameters![i], invoker.ParameterTypes[i]);
+                        castedParams[i] = _serialization!.Cast(command.Parameters![i], invoker.ParameterTypes[i]);
                     }
                 }
 
@@ -93,10 +74,10 @@ namespace mROA.Implementation.Backend
                 {
                     case AsyncMethodInvoker { IsVoid: false } asyncNonVoidMethodInvoker:
                         return TypedExecuteAsync(asyncNonVoidMethodInvoker, context, castedParams, command,
-                            _cancellationRepo,
+                            _cancellationRepo!,
                             representationModule, execContext);
                     case AsyncMethodInvoker asyncMethodInvoker:
-                        return ExecuteAsync(asyncMethodInvoker, context, castedParams, command, _cancellationRepo,
+                        return ExecuteAsync(asyncMethodInvoker, context, castedParams, command, _cancellationRepo!,
                             representationModule, execContext);
                     default:
                         var result = Execute((invoker as MethodInvoker)!, context, castedParams!, command, execContext);
@@ -121,6 +102,32 @@ namespace mROA.Implementation.Backend
             }
         }
 
+        private void ThrowIfNotInjected(IContextRepository contextRepository)
+        {
+            if (_cancellationRepo is null)
+                throw new NullReferenceException("Method repository was not defined");
+
+            if (_methodRepo is null)
+                throw new NullReferenceException("Method repository was not defined");
+
+            if (contextRepository is null)
+                throw new NullReferenceException("Context repository was not defined");
+        }
+
+        private FinalCommandExecution CancelExecution(ICallRequest command)
+        {
+            var cts = _cancellationRepo!.GetCancellation(command.Id);
+            if (cts == null)
+                throw new NullReferenceException("Can't find cancellation for this request");
+            cts.Cancel();
+            _cancellationRepo.FreeCancelation(command.Id);
+
+            return new FinalCommandExecution
+            {
+                Id = command.Id
+            };
+        }
+        
         private static ICommandExecution Execute(MethodInvoker invoker, object instance, object?[] parameter,
             ICallRequest command, RequestContext executionContext)
         {

mROA/Implementation/Frontend/RequestExtractor.cs

@@ -48,17 +48,7 @@ namespace mROA.Implementation.Frontend
         {
             return Task.Run(() =>
             {
-                if (_serializationToolkit == null)
-                    throw new NullReferenceException("Serializing toolkit is null.");
-                if (_executeModule == null)
-                    throw new NullReferenceException("Execute module is null.");
-                if (_realContextRepository == null)
-                    throw new NullReferenceException("Context repository is null.");
-                if (_representationModule == null)
-                    throw new NullReferenceException("Representation module is null.");
-                if (_methodRepository == null)
-                    throw new NullReferenceException("Method repository is null.");
-
+                ThrowIfNotInjected();
                 var multiClientOwnershipRepository =
                     TransmissionConfig.OwnershipRepository as MultiClientOwnershipRepository;
                 multiClientOwnershipRepository?.RegisterOwnership(_representationModule.Id);
@@ -99,31 +89,15 @@ namespace mROA.Implementation.Frontend
 #if TRACE
                             Console.WriteLine("Cancelling request");
 #endif
-                            var req = cancelRequest.Result;
-                            tokenSource.Cancel();
-                            _executeModule.Execute(req, _realContextRepository, _representationModule);
+                            HandleCancelRequest(tokenSource, cancelRequest.Result);
                         }
                         else if (defaultRequest.IsCompleted)
                         {
-                            tokenSource.Cancel();
-                            var request = defaultRequest.Result;
-
-                            var result = _executeModule.Execute(request, _realContextRepository, _representationModule);
-
-                            var resultType = result switch
-                            {
-                                FinalCommandExecution => MessageType.FinishedCommandExecution,
-                                AsyncCommandExecution => MessageType.AsyncCommandExecution,
-                                ExceptionCommandExecution => MessageType.ExceptionCommandExecution,
-                                _ => MessageType.Unknown
-                            };
-                            _representationModule.PostCallMessage(request.Id, resultType, result, result.GetType());
+                            HandleCallRequest(tokenSource, defaultRequest.Result);
                         }
                         else
                         {
-                            tokenSource.Cancel();
-                            var request = eventRequest.Result;
-                            _executeModule.Execute(request, _remoteContextRepository!, _representationModule);
+                            HandleEventRequest(tokenSource, eventRequest.Result);
                         }
                     }
                 }
@@ -133,5 +107,48 @@ namespace mROA.Implementation.Frontend
                 }
             });
         }
+
+        private void ThrowIfNotInjected()
+        {
+            if (_serializationToolkit == null)
+                throw new NullReferenceException("Serializing toolkit is null.");
+            if (_executeModule == null)
+                throw new NullReferenceException("Execute module is null.");
+            if (_realContextRepository == null)
+                throw new NullReferenceException("Context repository is null.");
+            if (_representationModule == null)
+                throw new NullReferenceException("Representation module is null.");
+            if (_methodRepository == null)
+                throw new NullReferenceException("Method repository is null.");
+        }
+        
+        private void HandleCancelRequest(CancellationTokenSource tokenSource, CancelRequest req)
+        {
+            tokenSource.Cancel();
+            _executeModule!.Execute(req, _realContextRepository!, _representationModule!);
+        }
+
+        private void HandleCallRequest(CancellationTokenSource tokenSource, DefaultCallRequest request)
+        {
+            tokenSource.Cancel();
+
+            var result = _executeModule!.Execute(request, _realContextRepository!, _representationModule!);
+
+            var resultType = result switch
+            {
+                FinalCommandExecution => MessageType.FinishedCommandExecution,
+                AsyncCommandExecution => MessageType.AsyncCommandExecution,
+                ExceptionCommandExecution => MessageType.ExceptionCommandExecution,
+                _ => MessageType.Unknown
+            };
+            
+            _representationModule!.PostCallMessage(request.Id, resultType, result, result.GetType());
+        }
+
+        private void HandleEventRequest(CancellationTokenSource tokenSource, DefaultCallRequest request)
+        {
+            tokenSource.Cancel();
+            _executeModule!.Execute(request, _remoteContextRepository!, _representationModule!);
+        }
     }
 }