Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / LocalService / WorkflowMessageEventHandler.cs / 1305376 / WorkflowMessageEventHandler.cs
//------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------- using System; using System.Diagnostics; using System.Collections; using System.Collections.Generic; using System.Reflection; using System.Workflow.ComponentModel; using System.Workflow.Runtime; using System.Workflow.Runtime.Hosting; using System.Security.Principal; using System.Runtime.Serialization; namespace System.Workflow.Activities { [Serializable] public sealed class EventDeliveryFailedException : SystemException { public EventDeliveryFailedException() { } public EventDeliveryFailedException(String message) : base(message) { } public EventDeliveryFailedException(String message, Exception innerException) : base(message, innerException) { } private EventDeliveryFailedException(SerializationInfo info, StreamingContext context) : base(info, context) { } } [Serializable] internal sealed class WorkflowMessageEventHandler { Type proxiedType; string eventName; [NonSerialized] Type eventHandlerType; [NonSerialized] IDeliverMessage enqueueWrapper; internal WorkflowMessageEventHandler(Type proxiedType, EventInfo eventInfo, IDeliverMessage enqueueWrapper) { this.proxiedType = proxiedType; this.eventName = eventInfo.Name; this.eventHandlerType = eventInfo.EventHandlerType; this.enqueueWrapper = enqueueWrapper; } internal IDeliverMessage EnqueueWrapper { get { return this.enqueueWrapper; } set { if (value == null) { throw new ArgumentNullException("value"); } this.enqueueWrapper = value; } } internal Delegate Delegate { get { MethodInfo interceptedHandler = this.eventHandlerType.GetMethod("Invoke"); ParameterInfo[] parameters = interceptedHandler.GetParameters(); bool isValidParameter = false; if (parameters.Length == 2) { if (parameters[1].ParameterType.IsSubclassOf(typeof(ExternalDataEventArgs)) || parameters[1].ParameterType == (typeof(ExternalDataEventArgs))) isValidParameter = true; } if (isValidParameter) { MethodInfo mHandler = typeof(WorkflowMessageEventHandler).GetMethod("EventHandler"); return (Delegate)Activator.CreateInstance(eventHandlerType, new object[] { this, mHandler.MethodHandle.GetFunctionPointer() }); } return null; } } public void EventHandler(object sender, ExternalDataEventArgs eventArgs) { if (eventArgs == null) { throw new ArgumentNullException("eventArgs"); } try { object workItem; IPendingWork workHandler; object[] args = this.enqueueWrapper.PrepareEventArgsArray(sender, eventArgs, out workItem, out workHandler); EventQueueName key = GetKey(args); String securityIdentifier = null; if (eventArgs.Identity == null) { IIdentity identity = System.Threading.Thread.CurrentPrincipal.Identity; WindowsIdentity windowsIdentity = identity as WindowsIdentity; if (windowsIdentity != null && windowsIdentity.User != null) securityIdentifier = windowsIdentity.User.Translate(typeof(NTAccount)).ToString(); else if (identity != null) securityIdentifier = identity.Name; eventArgs.Identity = securityIdentifier; } else { securityIdentifier = eventArgs.Identity; } MethodMessage message = new MethodMessage(this.proxiedType, this.eventName, args, securityIdentifier); WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "Firing event {0} for instance {1}", this.eventName, eventArgs.InstanceId); this.enqueueWrapper.DeliverMessage(eventArgs, key, message, workItem, workHandler); } catch (Exception e) { if (ExternalDataExchangeService.IsIrrecoverableException(e)) { throw; } else { throw new EventDeliveryFailedException(SR.GetString(SR.Error_EventDeliveryFailedException, this.proxiedType, this.eventName, eventArgs.InstanceId), e); } } } private EventQueueName GetKey(object[] eventArgs) { bool provideInitializerTokens = CorrelationResolver.IsInitializingMember(this.proxiedType, this.eventName, eventArgs); ICollectionpredicates = CorrelationResolver.ResolveCorrelationValues(this.proxiedType, this.eventName, eventArgs, provideInitializerTokens); return new EventQueueName(this.proxiedType, this.eventName, predicates); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------- using System; using System.Diagnostics; using System.Collections; using System.Collections.Generic; using System.Reflection; using System.Workflow.ComponentModel; using System.Workflow.Runtime; using System.Workflow.Runtime.Hosting; using System.Security.Principal; using System.Runtime.Serialization; namespace System.Workflow.Activities { [Serializable] public sealed class EventDeliveryFailedException : SystemException { public EventDeliveryFailedException() { } public EventDeliveryFailedException(String message) : base(message) { } public EventDeliveryFailedException(String message, Exception innerException) : base(message, innerException) { } private EventDeliveryFailedException(SerializationInfo info, StreamingContext context) : base(info, context) { } } [Serializable] internal sealed class WorkflowMessageEventHandler { Type proxiedType; string eventName; [NonSerialized] Type eventHandlerType; [NonSerialized] IDeliverMessage enqueueWrapper; internal WorkflowMessageEventHandler(Type proxiedType, EventInfo eventInfo, IDeliverMessage enqueueWrapper) { this.proxiedType = proxiedType; this.eventName = eventInfo.Name; this.eventHandlerType = eventInfo.EventHandlerType; this.enqueueWrapper = enqueueWrapper; } internal IDeliverMessage EnqueueWrapper { get { return this.enqueueWrapper; } set { if (value == null) { throw new ArgumentNullException("value"); } this.enqueueWrapper = value; } } internal Delegate Delegate { get { MethodInfo interceptedHandler = this.eventHandlerType.GetMethod("Invoke"); ParameterInfo[] parameters = interceptedHandler.GetParameters(); bool isValidParameter = false; if (parameters.Length == 2) { if (parameters[1].ParameterType.IsSubclassOf(typeof(ExternalDataEventArgs)) || parameters[1].ParameterType == (typeof(ExternalDataEventArgs))) isValidParameter = true; } if (isValidParameter) { MethodInfo mHandler = typeof(WorkflowMessageEventHandler).GetMethod("EventHandler"); return (Delegate)Activator.CreateInstance(eventHandlerType, new object[] { this, mHandler.MethodHandle.GetFunctionPointer() }); } return null; } } public void EventHandler(object sender, ExternalDataEventArgs eventArgs) { if (eventArgs == null) { throw new ArgumentNullException("eventArgs"); } try { object workItem; IPendingWork workHandler; object[] args = this.enqueueWrapper.PrepareEventArgsArray(sender, eventArgs, out workItem, out workHandler); EventQueueName key = GetKey(args); String securityIdentifier = null; if (eventArgs.Identity == null) { IIdentity identity = System.Threading.Thread.CurrentPrincipal.Identity; WindowsIdentity windowsIdentity = identity as WindowsIdentity; if (windowsIdentity != null && windowsIdentity.User != null) securityIdentifier = windowsIdentity.User.Translate(typeof(NTAccount)).ToString(); else if (identity != null) securityIdentifier = identity.Name; eventArgs.Identity = securityIdentifier; } else { securityIdentifier = eventArgs.Identity; } MethodMessage message = new MethodMessage(this.proxiedType, this.eventName, args, securityIdentifier); WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "Firing event {0} for instance {1}", this.eventName, eventArgs.InstanceId); this.enqueueWrapper.DeliverMessage(eventArgs, key, message, workItem, workHandler); } catch (Exception e) { if (ExternalDataExchangeService.IsIrrecoverableException(e)) { throw; } else { throw new EventDeliveryFailedException(SR.GetString(SR.Error_EventDeliveryFailedException, this.proxiedType, this.eventName, eventArgs.InstanceId), e); } } } private EventQueueName GetKey(object[] eventArgs) { bool provideInitializerTokens = CorrelationResolver.IsInitializingMember(this.proxiedType, this.eventName, eventArgs); ICollection predicates = CorrelationResolver.ResolveCorrelationValues(this.proxiedType, this.eventName, eventArgs, provideInitializerTokens); return new EventQueueName(this.proxiedType, this.eventName, predicates); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- EnumValAlphaComparer.cs
- RectangleGeometry.cs
- HandleCollector.cs
- EventMappingSettingsCollection.cs
- DES.cs
- AliasedExpr.cs
- figurelengthconverter.cs
- PartitionResolver.cs
- OverloadGroupAttribute.cs
- CalendarModeChangedEventArgs.cs
- ThemeInfoAttribute.cs
- OperationContractAttribute.cs
- TdsParameterSetter.cs
- ThumbAutomationPeer.cs
- iisPickupDirectory.cs
- ComponentCollection.cs
- FlowDocumentView.cs
- ConnectionDemuxer.cs
- AncillaryOps.cs
- DocumentPaginator.cs
- WebPartActionVerb.cs
- FlagsAttribute.cs
- DataGridCommandEventArgs.cs
- HashCryptoHandle.cs
- TypefaceMap.cs
- MapPathBasedVirtualPathProvider.cs
- Path.cs
- ColumnReorderedEventArgs.cs
- Visitors.cs
- URLIdentityPermission.cs
- RenameRuleObjectDialog.Designer.cs
- PassportAuthenticationModule.cs
- CustomErrorsSection.cs
- TreeNodeBindingCollection.cs
- EmptyEnumerable.cs
- NTAccount.cs
- DbConnectionPoolCounters.cs
- SpoolingTaskBase.cs
- ScalarOps.cs
- _SecureChannel.cs
- EntityTypeEmitter.cs
- TreeNodeStyle.cs
- WindowsContainer.cs
- LoginName.cs
- oledbmetadatacollectionnames.cs
- DataTableTypeConverter.cs
- XmlnsCache.cs
- DataControlFieldCell.cs
- Dispatcher.cs
- XmlSequenceWriter.cs
- SoapAttributeOverrides.cs
- DiagnosticsConfiguration.cs
- BreakRecordTable.cs
- ReliabilityContractAttribute.cs
- XmlNodeReader.cs
- QilTernary.cs
- Buffer.cs
- Helpers.cs
- GPRECT.cs
- DoWorkEventArgs.cs
- UInt32Storage.cs
- TextRangeProviderWrapper.cs
- SoapReflectionImporter.cs
- RenderData.cs
- SqlTransaction.cs
- HostProtectionPermission.cs
- EntityType.cs
- SQLDecimalStorage.cs
- FixedPageAutomationPeer.cs
- NavigationCommands.cs
- CapabilitiesState.cs
- WindowsStatusBar.cs
- HierarchicalDataTemplate.cs
- UpdateExpressionVisitor.cs
- PeerSecurityManager.cs
- FloaterBaseParaClient.cs
- HwndHost.cs
- CategoryAttribute.cs
- RouteData.cs
- BufferedReceiveElement.cs
- PropertyChangeTracker.cs
- PermissionSetTriple.cs
- MachineKeySection.cs
- GlobalEventManager.cs
- xml.cs
- OwnerDrawPropertyBag.cs
- CommandID.cs
- Tag.cs
- TraversalRequest.cs
- Membership.cs
- ColumnResizeUndoUnit.cs
- TrustExchangeException.cs
- ObjectStateManager.cs
- WorkflowRuntimeServiceElement.cs
- StorageModelBuildProvider.cs
- _WebProxyDataBuilder.cs
- TransformCollection.cs
- HandlerFactoryCache.cs
- StandardCommandToolStripMenuItem.cs
- SessionSwitchEventArgs.cs