Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / StateMachineAction.cs / 1305376 / StateMachineAction.cs
#region Using directives using System; using System.Collections; using System.Collections.Generic; using System.Collections.Specialized; using System.Reflection; using System.Diagnostics; using System.Runtime.Remoting.Messaging; using System.Workflow.ComponentModel; using System.Workflow.ComponentModel.Design; using System.Workflow.Runtime; using System.Workflow.Runtime.Hosting; #endregion Using directives namespace System.Workflow.Activities { [Serializable] internal class StateMachineAction { private string _stateName; [NonSerialized] private StateActivity _state; [NonSerialized] private StateActivity _currentState; private StateMachineExecutionState _executionState; private StateMachineSubscriptionManager _subscriptionManager; internal string StateName { get { return _stateName; } } protected StateActivity State { get { return _state; } } protected StateActivity CurrentState { get { return _currentState; } } protected StateMachineExecutionState ExecutionState { get { return _executionState; } } protected StateMachineSubscriptionManager SubscriptionManager { get { return _subscriptionManager; } } internal StateMachineAction(string stateName) { _stateName = stateName; } internal virtual void Execute(ActivityExecutionContext context) { if (context == null) throw new ArgumentNullException("context"); Debug.Assert(context.Activity.QualifiedName.Equals(this.StateName)); _state = (StateActivity)context.Activity; _currentState = StateMachineHelpers.GetCurrentState(context); StateActivity rootState = StateMachineHelpers.GetRootState(_state); _executionState = StateMachineExecutionState.Get(rootState); _subscriptionManager = _executionState.SubscriptionManager; } } [Serializable] internal class CloseStateAction : StateMachineAction { internal CloseStateAction(string stateName) : base(stateName) { } internal override void Execute(ActivityExecutionContext context) { base.Execute(context); StateActivity.LeavingState(context); } } [Serializable] internal class ExecuteChildStateAction : StateMachineAction { private string _childStateName; internal ExecuteChildStateAction(string stateName, string childStateName) : base(stateName) { _childStateName = childStateName; } internal string ChildStateName { get { return _childStateName; } } internal override void Execute(ActivityExecutionContext context) { base.Execute(context); StateActivity childState = (StateActivity)this.State.Activities[this.ChildStateName]; Debug.Assert(childState.Enabled); StateActivity.ExecuteState(context, childState); } } [Serializable] internal class SubscribeAction : StateMachineAction { private string _eventDrivenName; internal SubscribeAction(string stateName, string eventDrivenName) : base(stateName) { _eventDrivenName = eventDrivenName; } internal string EventDrivenName { get { return _eventDrivenName; } } internal override void Execute(ActivityExecutionContext context) { base.Execute(context); EventDrivenActivity eventDriven = (EventDrivenActivity)this.State.Activities[this.EventDrivenName]; Debug.Assert(eventDriven.Enabled); this.SubscriptionManager.SubscribeEventDriven(context, eventDriven); } } [Serializable] internal class UnsubscribeAction : StateMachineAction { private string _eventDrivenName; internal UnsubscribeAction(string stateName, string eventDrivenName) : base(stateName) { _eventDrivenName = eventDrivenName; } internal string EventDrivenName { get { return _eventDrivenName; } } internal override void Execute(ActivityExecutionContext context) { base.Execute(context); EventDrivenActivity eventDriven = (EventDrivenActivity)this.State.Activities[this.EventDrivenName]; Debug.Assert(eventDriven.Enabled); this.SubscriptionManager.UnsubscribeEventDriven(context, eventDriven); } } [Serializable] internal class ExternalEventAction : StateMachineAction { private string _eventDrivenName; internal ExternalEventAction(string stateName, string eventDrivenName) : base(stateName) { _eventDrivenName = eventDrivenName; } internal string EventDrivenName { get { return _eventDrivenName; } } internal override void Execute(ActivityExecutionContext context) { base.Execute(context); EventDrivenActivity eventDriven = (EventDrivenActivity)this.State.Activities[this.EventDrivenName]; Debug.Assert(eventDriven.Enabled); StateActivity.ExecuteEventDriven(context, eventDriven); } } [Serializable] internal class SetStateAction : StateMachineAction { private string _targetStateName; internal SetStateAction(string stateName, string targetStateName) : base(stateName) { _targetStateName = targetStateName; } internal string TargetStateName { get { return _targetStateName; } } internal override void Execute(ActivityExecutionContext context) { base.Execute(context); this.ExecutionState.CalculateStateTransition(this.CurrentState, this.TargetStateName); } } [Serializable] internal class DisableQueuesAction : StateMachineAction { internal DisableQueuesAction(string stateName) : base(stateName) { } internal override void Execute(ActivityExecutionContext context) { base.Execute(context); StateActivity state = this.State; StateActivity rootState = StateMachineHelpers.GetRootState(state); Queuestates = new Queue (); states.Enqueue(rootState); while (states.Count > 0) { state = states.Dequeue(); foreach (Activity activity in state.EnabledActivities) { EventDrivenActivity eventDriven = activity as EventDrivenActivity; if (eventDriven != null) { IEventActivity eventActivity = StateMachineHelpers.GetEventActivity(eventDriven); IComparable queueName = eventActivity.QueueName; if (queueName != null) { WorkflowQueue queue = StateMachineSubscriptionManager.GetWorkflowQueue(context, queueName); if (queue != null) queue.Enabled = this.SubscriptionManager.Subscriptions.ContainsKey(queueName); } } else { StateActivity childState = activity as StateActivity; if (childState != null) states.Enqueue(childState); } } } } } [Serializable] internal class EnteringStateAction : StateMachineAction { internal EnteringStateAction(string stateName) : base(stateName) { } internal override void Execute(ActivityExecutionContext context) { base.Execute(context); context.TrackData(StateActivity.StateChangeTrackingDataKey, this.CurrentState.QualifiedName); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Thickness.cs
- WebColorConverter.cs
- BeginEvent.cs
- Matrix.cs
- DefaultShape.cs
- XPathMultyIterator.cs
- Calendar.cs
- PropertyManager.cs
- ConfigurationProperty.cs
- DetailsViewRowCollection.cs
- ClickablePoint.cs
- CommentEmitter.cs
- ColumnCollectionEditor.cs
- DESCryptoServiceProvider.cs
- BaseAppDomainProtocolHandler.cs
- TemplateControlParser.cs
- ListViewHitTestInfo.cs
- ClickablePoint.cs
- CodeComment.cs
- ColumnHeaderConverter.cs
- SearchForVirtualItemEventArgs.cs
- Triangle.cs
- RolePrincipal.cs
- UniqueIdentifierService.cs
- SecurityResources.cs
- WindowHelperService.cs
- HtmlEncodedRawTextWriter.cs
- SettingsContext.cs
- ApplicationBuildProvider.cs
- XmlSchemaRedefine.cs
- Oid.cs
- Popup.cs
- QueryableDataSourceView.cs
- DefaultBindingPropertyAttribute.cs
- Int16AnimationBase.cs
- SmiTypedGetterSetter.cs
- CachedCompositeFamily.cs
- InstanceOwner.cs
- Line.cs
- NameValueCollection.cs
- SortableBindingList.cs
- BitmapEncoder.cs
- DataRelationPropertyDescriptor.cs
- WaitHandleCannotBeOpenedException.cs
- DispatchWrapper.cs
- SamlAuthenticationStatement.cs
- ApplicationException.cs
- SystemBrushes.cs
- SecurityPolicySection.cs
- RelationshipConstraintValidator.cs
- NegotiateStream.cs
- SecurityDocument.cs
- DataGridViewCellParsingEventArgs.cs
- XsdDuration.cs
- DescendantQuery.cs
- ThemeDirectoryCompiler.cs
- DataGridRowClipboardEventArgs.cs
- PointAnimationClockResource.cs
- CodeLinePragma.cs
- Floater.cs
- ManagementException.cs
- GradientStop.cs
- SoapObjectWriter.cs
- QuestionEventArgs.cs
- PeerResolverMode.cs
- SimpleType.cs
- XmlDocumentFragment.cs
- CacheHelper.cs
- FrameworkContextData.cs
- EventLogQuery.cs
- Certificate.cs
- DoubleCollectionConverter.cs
- ArraySegment.cs
- UnitySerializationHolder.cs
- EventRecordWrittenEventArgs.cs
- TextBoxAutomationPeer.cs
- ApplicationServicesHostFactory.cs
- DataTableReader.cs
- CaseExpr.cs
- KeyNameIdentifierClause.cs
- QilXmlReader.cs
- AnnotationHighlightLayer.cs
- SettingsPropertyIsReadOnlyException.cs
- CompilerTypeWithParams.cs
- HtmlImage.cs
- FixedSOMTableCell.cs
- Win32NamedPipes.cs
- ConfigXmlWhitespace.cs
- oledbmetadatacollectionnames.cs
- PlatformNotSupportedException.cs
- SqlUserDefinedTypeAttribute.cs
- WorkflowQueueInfo.cs
- ViewStateModeByIdAttribute.cs
- BadImageFormatException.cs
- AsyncResult.cs
- CatalogZone.cs
- RotateTransform.cs
- ClosableStream.cs
- RijndaelCryptoServiceProvider.cs
- Button.cs