Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Compiler / Validation / TransactionContextValidator.cs / 1305376 / TransactionContextValidator.cs
namespace System.Workflow.ComponentModel.Compiler { using System; using System.Reflection; using System.Globalization; using System.Collections.Generic; using System.Workflow.ComponentModel.Design; internal sealed class TransactionContextValidator : Validator { #region Validate Method public override ValidationErrorCollection Validate(ValidationManager manager, object obj) { ValidationErrorCollection validationErrors = base.Validate(manager, obj); Activity activity = obj as Activity; if (activity == null) throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(Activity).FullName), "obj"); WorkflowTransactionOptions atomicTransaction = TransactedContextFilter.GetTransactionOptions(activity); if (atomicTransaction != null) { // Atomic scopes can't have exception handlers. CompositeActivity exceptionHandlers = FaultAndCancellationHandlingFilter.GetFaultHandlers(activity); if (exceptionHandlers != null) { ValidationError error = new ValidationError(SR.GetString(SR.Error_AtomicScopeWithFaultHandlersActivityDecl, activity.Name), ErrorNumbers.Error_AtomicScopeWithFaultHandlersActivityDecl); validationErrors.Add(error); } // Atomic scopes can't have cancel handlers. Activity cancellationHandler = FaultAndCancellationHandlingFilter.GetCancellationHandler(activity); if (cancellationHandler != null) { ValidationError error = new ValidationError(SR.GetString(SR.Error_AtomicScopeWithCancellationHandlerActivity, activity.Name), ErrorNumbers.Error_AtomicScopeWithCancellationHandlerActivity); validationErrors.Add(error); } // check that this transaction scope is not nested inside another transaction scope Activity parent = activity.Parent; while (parent != null) { if (parent.SupportsTransaction) { validationErrors.Add(new ValidationError(SR.GetString(SR.Error_AtomicScopeNestedInNonLRT), ErrorNumbers.Error_AtomicScopeNestedInNonLRT)); break; } parent = parent.Parent; } // check that an activity with PersistOnClose/SupportsTransaction/ICompensatableActivity attribute is not nested inside the transaction scope QueuenestedEnabledActivities = new Queue (Helpers.GetAllEnabledActivities((CompositeActivity)activity)); while (nestedEnabledActivities.Count > 0) { Activity nestedEnabledActivity = nestedEnabledActivities.Dequeue(); if (nestedEnabledActivity.PersistOnClose) { validationErrors.Add(new ValidationError(SR.GetString(SR.Error_LRTScopeNestedInNonLRT), ErrorNumbers.Error_LRTScopeNestedInNonLRT)); break; } if (nestedEnabledActivity is ICompensatableActivity) { validationErrors.Add(new ValidationError(SR.GetString(SR.Error_NestedCompensatableActivity, nestedEnabledActivity.QualifiedName), ErrorNumbers.Error_NestedCompensatableActivity)); break; } if (nestedEnabledActivity is CompositeActivity) { foreach (Activity nestedEnabledActivity2 in Helpers.GetAllEnabledActivities((CompositeActivity)nestedEnabledActivity)) nestedEnabledActivities.Enqueue(nestedEnabledActivity2); } } // check timeout property if (atomicTransaction.TimeoutDuration.Ticks < 0) { ValidationError timeoutError = new ValidationError(SR.GetString(SR.Error_NegativeValue, new object[] { atomicTransaction.TimeoutDuration.ToString(), "TimeoutDuration" }), ErrorNumbers.Error_NegativeValue); timeoutError.PropertyName = "TimeoutDuration"; validationErrors.Add(timeoutError); } } return validationErrors; } public override ValidationError ValidateActivityChange(Activity activity, ActivityChangeAction action) { if (activity == null) throw new ArgumentNullException("activity"); if (action == null) throw new ArgumentNullException("action"); AddedActivityAction addedAction = action as AddedActivityAction; if (addedAction != null) { //Check existence of nested PersistOnClose/ICompensatable/SupportsTransaction nested anywhere //in the added activity branch System.Collections.Generic.Queue childrenQueue = new System.Collections.Generic.Queue (); childrenQueue.Enqueue(addedAction.AddedActivity); while (childrenQueue.Count != 0) { Activity childActivity = childrenQueue.Dequeue(); if (childActivity.SupportsTransaction) return new ValidationError(SR.GetString(SR.Error_AtomicScopeNestedInNonLRT), ErrorNumbers.Error_AtomicScopeNestedInNonLRT); if (childActivity.PersistOnClose) return new ValidationError(SR.GetString(SR.Error_NestedPersistOnClose, activity.QualifiedName), ErrorNumbers.Error_NestedPersistOnClose); if (childActivity is ICompensatableActivity) return new ValidationError(SR.GetString(SR.Error_NestedCompensatableActivity, activity.QualifiedName), ErrorNumbers.Error_NestedCompensatableActivity); CompositeActivity compositeActivity = childActivity as CompositeActivity; if (compositeActivity != null) { foreach (Activity grandChild in compositeActivity.EnabledActivities) { childrenQueue.Enqueue(grandChild); } } } } return base.ValidateActivityChange(activity, action); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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