private async Task InsertRequestPipelineMiddlewareRegistrations() { try { var pipelineAdditions = await _taskManager.ManagedRun(_taskId, (token) => _lifecycleManager.GetMiddlewarePipelineAdditions(token)); _configureMethodStatements = _configureMethodStatements.Concat(pipelineAdditions); } catch (OperationCanceledException e) { LogHelper.LogError(e, string.Format( Constants.CaneledServiceCallLogTemplate, Rules.Config.Constants.WebFormsErrorTag, GetType().Name, typeof(LifecycleManagerService).Name, GetMiddlewarePipelineAdditionsLogCall)); var failureComment = string.Format(Constants.OperationFailedCommentTemplate, ConfigureRequestPipelineOperation); if (!_configureMethodStatements.Any()) { // If we don't have any extra statements for configure() add a blank // one to attach our comment to _configureMethodStatements = _configureMethodStatements.Append(CodeSyntaxHelper.GetBlankLine().AddComment(failureComment, isLeading: false)); } else { _configureMethodStatements = _configureMethodStatements.AddComment(failureComment, isLeading: false); } } }
public override async Task <IEnumerable <FileInformation> > MigrateClassAsync() { LogStart(); _metricsContext.CollectActionMetrics(WebFormsActionType.ClassConversion, ActionName); // Make this call once now so we don't have to keep doing it later var originalDescendantNodes = _originalDeclarationSyntax.DescendantNodes(); // Currently not implementing service layer so add blank line with a comment instead var configureServicesLines = new[] { CodeSyntaxHelper.GetBlankLine().AddComment(string.Format(Constants.OperationUnattemptedCommentTemplate, MigrateServiceLayerOperation), isLeading: false) }; // Iterate through methods and process them as needed ProcessMethods(originalDescendantNodes.OfType <MethodDeclarationSyntax>()); // With middleware lambdas added we need to retrieve registrations // before we have all statements required to build startup class await InsertRequestPipelineMiddlewareRegistrations(); var fileText = string.Empty; try { var startupClassDeclaration = StartupSyntaxHelper.ConstructStartupClass( constructorAdditionalStatements: originalDescendantNodes.OfType <ConstructorDeclarationSyntax>().FirstOrDefault()?.Body?.Statements, configureAdditionalStatements: _configureMethodStatements, configureServicesAdditionalStatements: configureServicesLines, additionalFieldDeclarations: originalDescendantNodes.OfType <FieldDeclarationSyntax>(), additionalPropertyDeclarations: originalDescendantNodes.OfType <PropertyDeclarationSyntax>(), additionalMethodDeclarations: _keepableMethods) .AddClassBlockComment(_endOfClassComments, false); var containingNamespace = CodeSyntaxHelper.BuildNamespace(_originalClassSymbol.ContainingNamespace?.ToDisplayString(), startupClassDeclaration); fileText = CodeSyntaxHelper.GetFileSyntaxAsString(containingNamespace, await GetAllUsingStatements()); } catch (Exception e) { LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Failed to construct new Startup file content from {OriginalClassName} class at {_fullPath}"); } DoCleanUp(); LogEnd(); // Global.asax.cs turns into Startup.cs var newRelativePath = FilePathHelper.RemoveDuplicateDirectories(Path.Combine(Path.GetDirectoryName(_relativePath), Constants.StartupFileName)); return(new[] { new FileInformation(newRelativePath, Encoding.UTF8.GetBytes(fileText)) }); }
private void ProcessMethods(IEnumerable <MethodDeclarationSyntax> orignalMethods) { foreach (var method in orignalMethods) { try { var lifecycleEvent = LifecycleManagerService.CheckMethodApplicationLifecycleHook(method); if (lifecycleEvent != null) { HandleLifecycleMethod(method, (WebFormsAppLifecycleEvent)lifecycleEvent); } else if (method.IsEventHandler(ApplicationStartMethodName)) { var newStatements = method.Body.Statements // Make a note of where these lines came from .AddComment(string.Format(Constants.CodeOriginCommentTemplate, ApplicationStartMethodName)) // Add blank line before new statements to give some separation from previous statements .Prepend(CodeSyntaxHelper.GetBlankLine()); _configureMethodStatements = _configureMethodStatements.Concat(newStatements); } else if (method.IsEventHandler(ApplicationEndMethodName) || method.IsEventHandler(SessionStartMethodName) || method.IsEventHandler(SessionEndMethodName)) { CommentOutMethod(method); } else { _keepableMethods = _keepableMethods.Append(method); } } catch (Exception e) { LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Failed to process {method.Identifier} method in {OriginalClassName} class at {_fullPath}"); } } // We added all discovered middleware methods as lambdas so global has been // processed as a middleware source _lifecycleManager.NotifyMiddlewareSourceProcessed(); }
private void ProcessLifecycleEventMethod(MethodDeclarationSyntax methodDeclaration, WebFormsPageLifecycleEvent lifecycleEvent) { var statements = (IEnumerable <StatementSyntax>)methodDeclaration.Body.Statements; // Dont do anything if the method is empty, no reason to move over nothing if (statements.Any()) { statements = statements.AddComment(string.Format(Constants.NewEventRepresentationCommentTemplate, lifecycleEvent.ToString())); var blazorLifecycleEvent = LifecycleManagerService.GetEquivalentComponentLifecycleEvent(lifecycleEvent); if (_newLifecycleLines.ContainsKey(blazorLifecycleEvent)) { // Add spacing between last added method statements = statements.Prepend(CodeSyntaxHelper.GetBlankLine()); _newLifecycleLines[blazorLifecycleEvent] = _newLifecycleLines[blazorLifecycleEvent].Concat(statements); } else { _newLifecycleLines.Add(blazorLifecycleEvent, statements); } } }
public override Task <IEnumerable <FileInformation> > MigrateClassAsync() { LogStart(); _metricsContext.CollectActionMetrics(WebFormsActionType.ClassConversion, ActionName); var className = _originalDeclarationSyntax.Identifier.ToString(); var namespaceName = _originalClassSymbol.ContainingNamespace?.ToDisplayString(); // NOTE: Removed temporarily until usings can be better determined, at the moment, too // many are being removed //var requiredNamespaceNames = _sourceFileSemanticModel // .GetNamespacesReferencedByType(_originalDeclarationSyntax) // .Select(namespaceSymbol => namespaceSymbol.ToDisplayString()); var requiredNamespaceNames = _sourceFileSemanticModel.GetOriginalUsingNamespaces() .Union(MiddlewareSyntaxHelper.RequiredNamespaces); requiredNamespaceNames = CodeSyntaxHelper.RemoveFrameworkUsings(requiredNamespaceNames); // Make this call once now so we don't have to keep doing it later var originalDescendantNodes = _originalDeclarationSyntax.DescendantNodes(); var keepableMethods = originalDescendantNodes.OfType <MethodDeclarationSyntax>(); var processRequestMethod = keepableMethods.Where(method => LifecycleManagerService.IsProcessRequestMethod(method)).SingleOrDefault(); IEnumerable <StatementSyntax> preHandleStatements; if (processRequestMethod != null) { preHandleStatements = processRequestMethod.Body.Statements.AddComment(string.Format(Constants.CodeOriginCommentTemplate, Constants.ProcessRequestMethodName)); keepableMethods = keepableMethods.Where(method => !method.IsEquivalentTo(processRequestMethod)); _lifecycleManager.RegisterMiddlewareClass(WebFormsAppLifecycleEvent.RequestHandlerExecute, className, namespaceName, className, false); } else { preHandleStatements = new[] { CodeSyntaxHelper.GetBlankLine().AddComment(string.Format(Constants.IdentificationFailureCommentTemplate, ProcessRequestDiscovery, InvokePopulationOperation)) }; } // We have completed any possible registration by this point _lifecycleManager.NotifyMiddlewareSourceProcessed(); var fileText = string.Empty; try { var middlewareClassDeclaration = MiddlewareSyntaxHelper.ConstructMiddlewareClass( middlewareClassName: className, shouldContinueAfterInvoke: false, constructorAdditionalStatements: originalDescendantNodes.OfType <ConstructorDeclarationSyntax>().FirstOrDefault()?.Body?.Statements, preHandleStatements: preHandleStatements, additionalFieldDeclarations: originalDescendantNodes.OfType <FieldDeclarationSyntax>(), additionalPropertyDeclarations: originalDescendantNodes.OfType <PropertyDeclarationSyntax>(), additionalMethodDeclarations: keepableMethods); var namespaceNode = CodeSyntaxHelper.BuildNamespace(namespaceName, middlewareClassDeclaration); fileText = CodeSyntaxHelper.GetFileSyntaxAsString(namespaceNode, CodeSyntaxHelper.BuildUsingStatements(requiredNamespaceNames)); } catch (Exception e) { LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Failed to construct new HttpHandler file content from {OriginalClassName} class at {_fullPath}"); } DoCleanUp(); LogEnd(); // Http modules are turned into middleware and so we use a new middleware directory var newRelativePath = FilePathHelper.RemoveDuplicateDirectories(Path.Combine(Constants.MiddlewareDirectoryName, FilePathHelper.AlterFileName(_relativePath, newFileName: className))); // TODO: Potentially remove certain folders from beginning of relative path var result = new[] { new FileInformation(newRelativePath, Encoding.UTF8.GetBytes(fileText)) }; return(Task.FromResult((IEnumerable <FileInformation>)result)); }