private static void CreateFollowerEntry(IServiceProvider context, Type interfaceType, string followermethodName, string initializermethodName)
{
if (!CorrelationResolver.IsInitializingMember(interfaceType, initializermethodName, null))
{
return;
}
WorkflowQueuingService queueSvcs = (WorkflowQueuingService)context.GetService(typeof(WorkflowQueuingService));
FollowerQueueCreator follower = new FollowerQueueCreator(followermethodName);
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "Creating follower {0} on initializer {1}", interfaceType.Name + followermethodName, interfaceType.Name + initializermethodName);
ICollection <CorrelationProperty> corrValues = CorrelationResolver.ResolveCorrelationValues(interfaceType, initializermethodName, null, true);
EventQueueName key = new EventQueueName(interfaceType, initializermethodName, corrValues);
WorkflowQueue initializerQueue = null;
if (queueSvcs.Exists(key))
{
initializerQueue = queueSvcs.GetWorkflowQueue(key);
}
else
{
// traversed follower before initializer
initializerQueue = queueSvcs.CreateWorkflowQueue(key, true);
initializerQueue.Enabled = false;
}
initializerQueue.RegisterForQueueItemArrived(follower);
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (this.Fault == null)
{
throw new InvalidOperationException(SR.GetString(CultureInfo.CurrentCulture, "Error_PropertyNotSet", new object[] { FaultProperty.Name }));
}
WorkflowQueuingService service = executionContext.GetService <WorkflowQueuingService>();
base.RaiseEvent(SendingFaultEvent, this, EventArgs.Empty);
WebServiceInputActivity activityByName = base.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
IComparable queueName = new EventQueueName(activityByName.InterfaceType, activityByName.MethodName, activityByName.QualifiedName);
IMethodResponseMessage message = null;
WorkflowQueue workflowQueue = service.GetWorkflowQueue(queueName);
if (workflowQueue.Count != 0)
{
message = workflowQueue.Dequeue() as IMethodResponseMessage;
}
message.SendException(this.Fault);
return(ActivityExecutionStatus.Closed);
}
public override bool Equals(object obj)
{
EventQueueName eventQueueName = obj as EventQueueName;
if (eventQueueName == null)
{
return(false);
}
return(0 == this.CompareTo(eventQueueName));
}
private void CreateSubscription(Guid instanceId, ActivityExecutionContext context, ICollection <CorrelationProperty> correlationValues)
{
WorkflowQueuingService queueSvcs = context.GetService <WorkflowQueuingService>();
EventQueueName queueId = new EventQueueName(this.interfaceType, this.followerOperation, correlationValues);
WorkflowQueue workflowQueue = null;
if (!queueSvcs.Exists(queueId))
{
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "CorrelationTokenInvalidatedHandler: creating q {0} ", queueId.GetHashCode());
workflowQueue = queueSvcs.CreateWorkflowQueue(queueId, true);
queueCreator = true;
}
else
{
workflowQueue = queueSvcs.GetWorkflowQueue(queueId);
}
if (this.eventHandler != null)
{
workflowQueue.RegisterForQueueItemAvailable(this.eventHandler);
}
WorkflowSubscriptionService subscriptionService = (WorkflowSubscriptionService)context.GetService(typeof(WorkflowSubscriptionService));
MessageEventSubscription subscription = new MessageEventSubscription(queueId, instanceId);
this.queueName = queueId;
this.subscriptionId = subscription.SubscriptionId;
subscription.InterfaceType = this.interfaceType;
subscription.MethodName = this.followerOperation;
this.interfaceType = null;
this.followerOperation = null;
if (correlationValues != null)
{
foreach (CorrelationProperty property in correlationValues)
{
subscription.CorrelationProperties.Add(property);
}
}
if (this.eventHandler != null)
{
return;
}
if (subscriptionService == null)
{
return;
}
subscriptionService.CreateSubscription(subscription);
}
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);
}
}
}
public override bool Equals(object obj)
{
EventQueueName k = obj as EventQueueName;
//Without the cast we end up in op_Equality below
if ((object)k == null)
{
return(false);
}
return(0 == CompareTo(k));
}
public int CompareTo(EventQueueName eventQueueName)
{
if (eventQueueName == null)
{
return(-1);
}
int num = StringComparer.Ordinal.Compare(this.MethodName, eventQueueName.MethodName);
if (num == 0)
{
num = StringComparer.Ordinal.Compare(this.AssemblyQualifiedName, eventQueueName.AssemblyQualifiedName);
if ((num != 0) || (this.correlationValues == null))
{
return(num);
}
num = (eventQueueName.correlationValues != null) ? (this.correlationValues.Length - eventQueueName.correlationValues.Length) : -1;
if (num != 0)
{
return(num);
}
for (int i = 0; i < this.correlationValues.Length; i++)
{
if ((this.correlationValues[i] == null) || (eventQueueName.correlationValues[i] == null))
{
return(-1);
}
object obj2 = this.correlationValues[i].Value;
object obj3 = this.FindCorrelationValue(this.correlationValues[i].Name, eventQueueName.correlationValues);
if ((obj2 != null) || (obj3 != null))
{
if (obj2 == null)
{
return(-1);
}
IComparable comparable = obj2 as IComparable;
if (comparable != null)
{
num = comparable.CompareTo(obj3);
if (num != 0)
{
return(num);
}
}
else if (!obj2.Equals(obj3))
{
return(-1);
}
}
}
}
return(num);
}
private void ProcessParameters(ActivityExecutionContext context, IMethodMessage message, Type interfaceType, string operation)
{
WorkflowParameterBindingCollection parameters = ParameterBindings;
if (parameters == null)
{
return;
}
//cache mInfo todo
MethodInfo mInfo = interfaceType.GetMethod(operation);
if (mInfo == null)
{
return;
}
int index = 0;
bool responseRequired = false;
foreach (ParameterInfo formalParameter in mInfo.GetParameters())
{
// populate in params, checking on IsIn alone is not sufficient
if (!(formalParameter.ParameterType.IsByRef || (formalParameter.IsIn && formalParameter.IsOut)))
{
if (parameters.Contains(formalParameter.Name))
{
WorkflowParameterBinding binding = parameters[formalParameter.Name];
binding.Value = message.Args[index++];
}
}
else
{
responseRequired = true;
}
}
if (mInfo.ReturnType != typeof(void) || responseRequired)
{
// create queue entry {interface, operation and receive activity Id}
IComparable queueId = new EventQueueName(interfaceType, operation, QualifiedName);
// enqueue the message for sendresponse reply context
WorkflowQueuingService queuingService = (WorkflowQueuingService)context.GetService(typeof(WorkflowQueuingService));
if (!queuingService.Exists(queueId))
{
queuingService.CreateWorkflowQueue(queueId, true);
}
queuingService.GetWorkflowQueue(queueId).Enqueue(message);
}
}
public int CompareTo(EventQueueName eventQueueName)
{
if (eventQueueName == null)
{
return -1;
}
int num = StringComparer.Ordinal.Compare(this.MethodName, eventQueueName.MethodName);
if (num == 0)
{
num = StringComparer.Ordinal.Compare(this.AssemblyQualifiedName, eventQueueName.AssemblyQualifiedName);
if ((num != 0) || (this.correlationValues == null))
{
return num;
}
num = (eventQueueName.correlationValues != null) ? (this.correlationValues.Length - eventQueueName.correlationValues.Length) : -1;
if (num != 0)
{
return num;
}
for (int i = 0; i < this.correlationValues.Length; i++)
{
if ((this.correlationValues[i] == null) || (eventQueueName.correlationValues[i] == null))
{
return -1;
}
object obj2 = this.correlationValues[i].Value;
object obj3 = this.FindCorrelationValue(this.correlationValues[i].Name, eventQueueName.correlationValues);
if ((obj2 != null) || (obj3 != null))
{
if (obj2 == null)
{
return -1;
}
IComparable comparable = obj2 as IComparable;
if (comparable != null)
{
num = comparable.CompareTo(obj3);
if (num != 0)
{
return num;
}
}
else if (!obj2.Equals(obj3))
{
return -1;
}
}
}
}
return num;
}
private static void SafeEnqueueItem(WorkflowInstance instance, EventQueueName key, MethodMessage message)
{
Label_0000:
try
{
instance.EnqueueItem(key, message, null, null);
}
catch (WorkflowOwnershipException)
{
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Warning, 0, string.Format(CultureInfo.InvariantCulture, "Workflow Web Host Encountered Workflow Instance Ownership conflict for instanceid {0}.", new object[] { instance.InstanceId }));
Thread.Sleep(500);
goto Label_0000;
}
}
private ActivityExecutionStatus ExecuteForActivity(ActivityExecutionContext context, Type interfaceType, string operation)
{
WorkflowQueuingService queueSvcs = (WorkflowQueuingService)context.GetService(typeof(WorkflowQueuingService));
IComparable queueId = new EventQueueName(interfaceType, operation);
if (queueId != null)
{
WorkflowQueue queue;
object msg = InboundActivityHelper.DequeueMessage(queueId, queueSvcs, this, out queue);
if (msg != null)
{
this.ProcessMessage(context, msg, interfaceType, operation);
return(ActivityExecutionStatus.Closed);
}
}
return(ActivityExecutionStatus.Executing);
}
void IActivityEventListener <QueueEventArgs> .OnEvent(object sender, QueueEventArgs args)
{
lock (this.sync)
{
WorkflowQueue queue = (WorkflowQueue)sender;
EventQueueName queueName = (EventQueueName)queue.QueueName;
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "FollowerQueueCreator: initialized on operation {0} for follower {1}", new object[] { queueName.InterfaceType.Name + queueName.MethodName, this.followerOperation });
IMethodMessage message = queue.Peek() as IMethodMessage;
ICollection <CorrelationProperty> propertyValues = CorrelationResolver.ResolveCorrelationValues(queueName.InterfaceType, queueName.MethodName, message.Args, false);
EventQueueName name2 = new EventQueueName(queueName.InterfaceType, this.followerOperation, propertyValues);
if (!queue.QueuingService.Exists(name2))
{
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "FollowerQueueCreator::CreateQueue creating q {0}", new object[] { name2.GetHashCode() });
queue.QueuingService.CreateWorkflowQueue(name2, true);
}
}
}
//Back - off logic for conflicting workflow load across workflow runtime boundaries.
static void SafeEnqueueItem(WorkflowInstance instance, EventQueueName key, MethodMessage message)
{
while (true) //When Execution times out ASP.NET going to forcefully plung this request.
{
try
{
instance.EnqueueItem(key, message, null, null);
return;
}
catch (WorkflowOwnershipException)
{
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Warning, 0, String.Format(System.Globalization.CultureInfo.InvariantCulture, "Workflow Web Host Encountered Workflow Instance Ownership conflict for instanceid {0}.", instance.InstanceId));
//Back-off for 1/2 sec. Should we make this configurable?
System.Threading.Thread.Sleep(500);
continue;
}
}
}
public void EventHandler(object sender, ExternalDataEventArgs eventArgs)
{
if (eventArgs == null)
{
throw new ArgumentNullException("eventArgs");
}
try
{
object obj2;
IPendingWork work;
object[] objArray = this.enqueueWrapper.PrepareEventArgsArray(sender, eventArgs, out obj2, out work);
EventQueueName key = this.GetKey(objArray);
string name = null;
if (eventArgs.Identity == null)
{
IIdentity identity = Thread.CurrentPrincipal.Identity;
WindowsIdentity identity2 = identity as WindowsIdentity;
if ((identity2 != null) && (identity2.User != null))
{
name = identity2.User.Translate(typeof(NTAccount)).ToString();
}
else if (identity != null)
{
name = identity.Name;
}
eventArgs.Identity = name;
}
else
{
name = eventArgs.Identity;
}
MethodMessage message = new MethodMessage(this.proxiedType, this.eventName, objArray, name);
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "Firing event {0} for instance {1}", new object[] { this.eventName, eventArgs.InstanceId });
this.enqueueWrapper.DeliverMessage(eventArgs, key, message, obj2, work);
}
catch (Exception exception)
{
if (ExternalDataExchangeService.IsIrrecoverableException(exception))
{
throw;
}
throw new EventDeliveryFailedException(SR.GetString("Error_EventDeliveryFailedException", new object[] { this.proxiedType, this.eventName, eventArgs.InstanceId }), exception);
}
}
protected sealed override void Initialize(IServiceProvider provider)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
if ((!base.IsDynamicActivity && !this.IsNestedUnderMultiInstanceContainer) || this.IsInitializingUnderMultiInstanceContainer)
{
Type interfaceType = this.InterfaceType;
string eventName = this.EventName;
IComparable comparable = null;
if (CorrelationResolver.IsInitializingMember(interfaceType, eventName, null))
{
comparable = new EventQueueName(interfaceType, eventName);
}
base.SetValue(QueueNameProperty, comparable);
CorrelationService.Initialize(provider, this, interfaceType, eventName, base.WorkflowInstanceId);
}
}
protected sealed override void Initialize(IServiceProvider provider)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
if (base.Parent == null)
{
throw new InvalidOperationException(SR.GetString("Error_MustHaveParent"));
}
WorkflowQueuingService service = (WorkflowQueuingService)provider.GetService(typeof(WorkflowQueuingService));
EventQueueName name = new EventQueueName(this.InterfaceType, this.MethodName);
base.SetValue(QueueNameProperty, name);
if (!service.Exists(name))
{
service.CreateWorkflowQueue(name, true);
}
}
private void ProcessParameters(ActivityExecutionContext context, IMethodMessage message, Type interfaceType, string operation)
{
WorkflowParameterBindingCollection parameterBindings = this.ParameterBindings;
if (parameterBindings != null)
{
MethodInfo method = interfaceType.GetMethod(operation);
if (method != null)
{
int num = 0;
bool flag = false;
foreach (ParameterInfo info2 in method.GetParameters())
{
if (!info2.ParameterType.IsByRef && (!info2.IsIn || !info2.IsOut))
{
if (parameterBindings.Contains(info2.Name))
{
WorkflowParameterBinding binding = parameterBindings[info2.Name];
binding.Value = message.Args[num++];
}
}
else
{
flag = true;
}
}
if ((method.ReturnType != typeof(void)) || flag)
{
IComparable queueName = new EventQueueName(interfaceType, operation, base.QualifiedName);
WorkflowQueuingService service = (WorkflowQueuingService)context.GetService(typeof(WorkflowQueuingService));
if (!service.Exists(queueName))
{
service.CreateWorkflowQueue(queueName, true);
}
service.GetWorkflowQueue(queueName).Enqueue(message);
}
}
}
}
void IActivityEventListener <QueueEventArgs> .OnEvent(object sender, QueueEventArgs args)
{
lock (sync)
{
WorkflowQueue queue = (WorkflowQueue)sender;
// create the queue after extracting the correlation values from the message
EventQueueName staticId = (EventQueueName)queue.QueueName;
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "FollowerQueueCreator: initialized on operation {0} for follower {1}", staticId.InterfaceType.Name + staticId.MethodName, this.followerOperation);
IMethodMessage message = queue.Peek() as IMethodMessage;
ICollection <CorrelationProperty> corrValues = CorrelationResolver.ResolveCorrelationValues(staticId.InterfaceType, staticId.MethodName, message.Args, false);
EventQueueName queueName = new EventQueueName(staticId.InterfaceType, this.followerOperation, corrValues);
if (!queue.QueuingService.Exists(queueName))
{
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "FollowerQueueCreator::CreateQueue creating q {0}", queueName.GetHashCode());
queue.QueuingService.CreateWorkflowQueue(queueName, true);
}
}
}
private static void CreateFollowerEntry(IServiceProvider context, Type interfaceType, string followermethodName, string initializermethodName)
{
if (CorrelationResolver.IsInitializingMember(interfaceType, initializermethodName, null))
{
WorkflowQueuingService service = (WorkflowQueuingService)context.GetService(typeof(WorkflowQueuingService));
FollowerQueueCreator eventListener = new FollowerQueueCreator(followermethodName);
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "Creating follower {0} on initializer {1}", new object[] { interfaceType.Name + followermethodName, interfaceType.Name + initializermethodName });
ICollection <CorrelationProperty> propertyValues = CorrelationResolver.ResolveCorrelationValues(interfaceType, initializermethodName, null, true);
EventQueueName queueName = new EventQueueName(interfaceType, initializermethodName, propertyValues);
WorkflowQueue workflowQueue = null;
if (service.Exists(queueName))
{
workflowQueue = service.GetWorkflowQueue(queueName);
}
else
{
workflowQueue = service.CreateWorkflowQueue(queueName, true);
workflowQueue.Enabled = false;
}
workflowQueue.RegisterForQueueItemArrived(eventListener);
}
}
private static void CreateFollowerEntry(IServiceProvider context, Type interfaceType, string followermethodName, string initializermethodName)
{
if (CorrelationResolver.IsInitializingMember(interfaceType, initializermethodName, null))
{
WorkflowQueuingService service = (WorkflowQueuingService) context.GetService(typeof(WorkflowQueuingService));
FollowerQueueCreator eventListener = new FollowerQueueCreator(followermethodName);
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "Creating follower {0} on initializer {1}", new object[] { interfaceType.Name + followermethodName, interfaceType.Name + initializermethodName });
ICollection<CorrelationProperty> propertyValues = CorrelationResolver.ResolveCorrelationValues(interfaceType, initializermethodName, null, true);
EventQueueName queueName = new EventQueueName(interfaceType, initializermethodName, propertyValues);
WorkflowQueue workflowQueue = null;
if (service.Exists(queueName))
{
workflowQueue = service.GetWorkflowQueue(queueName);
}
else
{
workflowQueue = service.CreateWorkflowQueue(queueName, true);
workflowQueue.Enabled = false;
}
workflowQueue.RegisterForQueueItemArrived(eventListener);
}
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (this.Fault == null)
{
throw new InvalidOperationException(SR.GetString(CultureInfo.CurrentCulture, "Error_PropertyNotSet", new object[] { FaultProperty.Name }));
}
WorkflowQueuingService service = executionContext.GetService<WorkflowQueuingService>();
base.RaiseEvent(SendingFaultEvent, this, EventArgs.Empty);
WebServiceInputActivity activityByName = base.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
IComparable queueName = new EventQueueName(activityByName.InterfaceType, activityByName.MethodName, activityByName.QualifiedName);
IMethodResponseMessage message = null;
WorkflowQueue workflowQueue = service.GetWorkflowQueue(queueName);
if (workflowQueue.Count != 0)
{
message = workflowQueue.Dequeue() as IMethodResponseMessage;
}
message.SendException(this.Fault);
return ActivityExecutionStatus.Closed;
}
protected sealed override void Initialize(IServiceProvider provider)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
//When activity is dropped inside multi instance container(replicator)
//We delay CorrelationService initialization to template initialization time.
if ((!this.IsDynamicActivity && !IsNestedUnderMultiInstanceContainer) || IsInitializingUnderMultiInstanceContainer)
{
Type type = this.InterfaceType;
string eventName = this.EventName;
IComparable queueName = null;
if (CorrelationResolver.IsInitializingMember(type, eventName, null))
{
queueName = new EventQueueName(type, eventName);
}
this.SetValue(QueueNameProperty, queueName);
CorrelationService.Initialize(provider, this, type, eventName, this.WorkflowInstanceId);
}
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (this.Fault == null)
{
throw new InvalidOperationException(SR.GetString(CultureInfo.CurrentCulture, SR.Error_PropertyNotSet, FaultProperty.Name));
}
WorkflowQueuingService queueService = executionContext.GetService <WorkflowQueuingService>();
// fire event
this.RaiseEvent(WebServiceFaultActivity.SendingFaultEvent, this, EventArgs.Empty);
WebServiceInputActivity webservicereceive = this.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
IComparable queueId = new EventQueueName(webservicereceive.InterfaceType, webservicereceive.MethodName, webservicereceive.QualifiedName);
Debug.Assert(queueService.Exists(queueId));
IMethodResponseMessage responseMessage = null;
WorkflowQueue queue = queueService.GetWorkflowQueue(queueId);
if (queue.Count != 0)
{
responseMessage = queue.Dequeue() as IMethodResponseMessage;
}
System.Diagnostics.Debug.Assert(responseMessage != null);
// populate exception & reset the waiting thread
responseMessage.SendException(this.Fault);
return(ActivityExecutionStatus.Closed);
}
protected sealed override void Initialize(IServiceProvider provider)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
if (this.Parent == null)
{
throw new InvalidOperationException(SR.GetString(SR.Error_MustHaveParent));
}
WorkflowQueuingService queueService = (WorkflowQueuingService)provider.GetService(typeof(WorkflowQueuingService));
//create a static q entry
EventQueueName key = new EventQueueName(this.InterfaceType, this.MethodName);
this.SetValue(QueueNameProperty, key);
if (!queueService.Exists(key))
{
queueService.CreateWorkflowQueue(key, true);
}
}
protected object[] Invoke(Type interfaceType, string methodName, bool isActivation, object[] parameters)
{
EventHandler<WorkflowCompletedEventArgs> handler3 = null;
object[] objArray;
Guid workflowInstanceId = GetWorkflowInstanceId(ref isActivation);
EventQueueName key = new EventQueueName(interfaceType, methodName);
MethodInfo method = interfaceType.GetMethod(methodName);
bool responseRequired = method.ReturnType != typeof(void);
if (!responseRequired)
{
foreach (ParameterInfo info2 in method.GetParameters())
{
if (info2.ParameterType.IsByRef || info2.IsOut)
{
responseRequired = true;
break;
}
}
}
MethodMessage methodMessage = PrepareMessage(interfaceType, methodName, parameters, responseRequired);
EventHandler<WorkflowTerminatedEventArgs> handler = null;
EventHandler<WorkflowCompletedEventArgs> handler2 = null;
try
{
WorkflowInstance workflow;
if (isActivation)
{
workflow = this.WorkflowRuntime.CreateWorkflow(this.workflowType, null, workflowInstanceId);
SafeEnqueueItem(workflow, key, methodMessage);
workflow.Start();
}
else
{
workflow = this.WorkflowRuntime.GetWorkflow(workflowInstanceId);
SafeEnqueueItem(workflow, key, methodMessage);
}
bool workflowTerminated = false;
handler = delegate (object sender, WorkflowTerminatedEventArgs e) {
if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
{
methodMessage.SendException(e.Exception);
workflowTerminated = true;
}
};
if (handler3 == null)
{
handler3 = delegate (object sender, WorkflowCompletedEventArgs e) {
if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
{
methodMessage.SendException(new ApplicationException(SR.GetString(CultureInfo.CurrentCulture, "Error_WorkflowCompleted")));
}
};
}
handler2 = handler3;
this.WorkflowRuntime.WorkflowTerminated += handler;
this.WorkflowRuntime.WorkflowCompleted += handler2;
ManualWorkflowSchedulerService service = this.WorkflowRuntime.GetService<ManualWorkflowSchedulerService>();
if (service != null)
{
service.RunWorkflow(workflow.InstanceId);
}
if (!responseRequired)
{
return new object[0];
}
IMethodResponseMessage message = methodMessage.WaitForResponseMessage();
if (message.Exception != null)
{
if (!workflowTerminated)
{
throw message.Exception;
}
throw new ApplicationException(SR.GetString(CultureInfo.CurrentCulture, "Error_WorkflowTerminated"), message.Exception);
}
if (message.OutArgs != null)
{
return ((ArrayList) message.OutArgs).ToArray();
}
objArray = new object[0];
}
finally
{
if (handler != null)
{
this.WorkflowRuntime.WorkflowTerminated -= handler;
}
if (handler2 != null)
{
this.WorkflowRuntime.WorkflowCompleted -= handler2;
}
}
return objArray;
}
// IComparable implementation
public int CompareTo(EventQueueName eventQueueName)
{
if (eventQueueName == null)
{
return(-1);
}
// compare operation
int compared = StringComparer.Ordinal.Compare(this.MethodName, eventQueueName.MethodName);
if (compared == 0)
{
// compare type names
#pragma warning disable 56506
compared = StringComparer.Ordinal.Compare(AssemblyQualifiedName, eventQueueName.AssemblyQualifiedName);
#pragma warning restore 56506
if (compared == 0)
{
if (this.correlationValues != null)
{
compared = (eventQueueName.correlationValues != null) ? (this.correlationValues.Length - eventQueueName.correlationValues.Length) : -1;
if (compared == 0)
{
// compare correlation values
for (int i = 0; i < this.correlationValues.Length; i++)
{
if (this.correlationValues[i] == null || eventQueueName.correlationValues[i] == null)
{
compared = -1;
break; // match failed
}
object leftValue = this.correlationValues[i].Value;
object rightValue = FindCorrelationValue(this.correlationValues[i].Name, eventQueueName.correlationValues);
#pragma warning suppress 56506
if (leftValue == null && rightValue == null)
{
continue;
}
// do the explicit equals check
if (leftValue != null)
{
IComparable comparable = leftValue as IComparable;
if (comparable != null)
{
compared = comparable.CompareTo(rightValue);
if (compared != 0)
{
break; // match failed
}
}
else if ((!leftValue.Equals(rightValue)))
{
compared = -1;
break; // match failed
}
}
else
{
compared = -1;
break; // match failed
}
}
}
}
}
}
return(compared);
}
protected Object[] Invoke(Type interfaceType, String methodName, bool isActivation, Object[] parameters)
{
Guid workflowInstanceId = GetWorkflowInstanceId(ref isActivation);
WorkflowInstance wfInstance;
EventQueueName key = new EventQueueName(interfaceType, methodName);
MethodInfo mInfo = interfaceType.GetMethod(methodName);
bool responseRequired = (mInfo.ReturnType != typeof(void));
if (!responseRequired)
{
foreach (ParameterInfo parameter in mInfo.GetParameters())
{
if (parameter.ParameterType.IsByRef || parameter.IsOut)
{
responseRequired = true;
break;
}
}
}
MethodMessage methodMessage = PrepareMessage(interfaceType, methodName, parameters, responseRequired);
EventHandler <WorkflowTerminatedEventArgs> workflowTerminationHandler = null;
EventHandler <WorkflowCompletedEventArgs> workflowCompletedHandler = null;
try
{
if (isActivation)
{
wfInstance = WorkflowRuntime.CreateWorkflow(this.workflowType, null, workflowInstanceId);
SafeEnqueueItem(wfInstance, key, methodMessage);
wfInstance.Start();
}
else
{
wfInstance = WorkflowRuntime.GetWorkflow(workflowInstanceId);
SafeEnqueueItem(wfInstance, key, methodMessage);
}
bool workflowTerminated = false;
//Handler for workflow termination in b/w outstanding req-response.
workflowTerminationHandler = delegate(Object sender, WorkflowTerminatedEventArgs e)
{
if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
{
methodMessage.SendException(e.Exception);
workflowTerminated = true;
}
};
workflowCompletedHandler = delegate(Object sender, WorkflowCompletedEventArgs e)
{
if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
{
methodMessage.SendException(new ApplicationException(SR.GetString(System.Globalization.CultureInfo.CurrentCulture, SR.Error_WorkflowCompleted)));
}
};
WorkflowRuntime.WorkflowTerminated += workflowTerminationHandler;
WorkflowRuntime.WorkflowCompleted += workflowCompletedHandler;
ManualWorkflowSchedulerService scheduler = WorkflowRuntime.GetService <ManualWorkflowSchedulerService>();
if (scheduler != null)
{
scheduler.RunWorkflow(wfInstance.InstanceId);
}
if (!responseRequired)
{
// no ret, out or ref
return(new Object[] { });
}
IMethodResponseMessage response = methodMessage.WaitForResponseMessage();
if (response.Exception != null)
{
if (!workflowTerminated)
{
throw response.Exception;
}
else
{
throw new ApplicationException(SR.GetString(System.Globalization.CultureInfo.CurrentCulture, SR.Error_WorkflowTerminated), response.Exception);
}
}
if (response.OutArgs != null)
{
return(((ArrayList)response.OutArgs).ToArray());
}
else
{
return new Object[] { }
};
}
finally
{
if (workflowTerminationHandler != null)
{
WorkflowRuntime.WorkflowTerminated -= workflowTerminationHandler;
}
if (workflowCompletedHandler != null)
{
WorkflowRuntime.WorkflowCompleted -= workflowCompletedHandler;
}
}
}
protected object[] Invoke(Type interfaceType, string methodName, bool isActivation, object[] parameters)
{
EventHandler <WorkflowCompletedEventArgs> handler3 = null;
object[] objArray;
Guid workflowInstanceId = GetWorkflowInstanceId(ref isActivation);
EventQueueName key = new EventQueueName(interfaceType, methodName);
MethodInfo method = interfaceType.GetMethod(methodName);
bool responseRequired = method.ReturnType != typeof(void);
if (!responseRequired)
{
foreach (ParameterInfo info2 in method.GetParameters())
{
if (info2.ParameterType.IsByRef || info2.IsOut)
{
responseRequired = true;
break;
}
}
}
MethodMessage methodMessage = PrepareMessage(interfaceType, methodName, parameters, responseRequired);
EventHandler <WorkflowTerminatedEventArgs> handler = null;
EventHandler <WorkflowCompletedEventArgs> handler2 = null;
try
{
WorkflowInstance workflow;
if (isActivation)
{
workflow = this.WorkflowRuntime.CreateWorkflow(this.workflowType, null, workflowInstanceId);
SafeEnqueueItem(workflow, key, methodMessage);
workflow.Start();
}
else
{
workflow = this.WorkflowRuntime.GetWorkflow(workflowInstanceId);
SafeEnqueueItem(workflow, key, methodMessage);
}
bool workflowTerminated = false;
handler = delegate(object sender, WorkflowTerminatedEventArgs e) {
if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
{
methodMessage.SendException(e.Exception);
workflowTerminated = true;
}
};
if (handler3 == null)
{
handler3 = delegate(object sender, WorkflowCompletedEventArgs e) {
if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
{
methodMessage.SendException(new ApplicationException(SR.GetString(CultureInfo.CurrentCulture, "Error_WorkflowCompleted")));
}
};
}
handler2 = handler3;
this.WorkflowRuntime.WorkflowTerminated += handler;
this.WorkflowRuntime.WorkflowCompleted += handler2;
ManualWorkflowSchedulerService service = this.WorkflowRuntime.GetService <ManualWorkflowSchedulerService>();
if (service != null)
{
service.RunWorkflow(workflow.InstanceId);
}
if (!responseRequired)
{
return(new object[0]);
}
IMethodResponseMessage message = methodMessage.WaitForResponseMessage();
if (message.Exception != null)
{
if (!workflowTerminated)
{
throw message.Exception;
}
throw new ApplicationException(SR.GetString(CultureInfo.CurrentCulture, "Error_WorkflowTerminated"), message.Exception);
}
if (message.OutArgs != null)
{
return(((ArrayList)message.OutArgs).ToArray());
}
objArray = new object[0];
}
finally
{
if (handler != null)
{
this.WorkflowRuntime.WorkflowTerminated -= handler;
}
if (handler2 != null)
{
this.WorkflowRuntime.WorkflowCompleted -= handler2;
}
}
return(objArray);
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
if (executionContext == null)
throw new ArgumentNullException("executionContext");
if (this.Fault == null)
{
throw new InvalidOperationException(SR.GetString(CultureInfo.CurrentCulture, SR.Error_PropertyNotSet, FaultProperty.Name));
}
WorkflowQueuingService queueService = executionContext.GetService<WorkflowQueuingService>();
// fire event
this.RaiseEvent(WebServiceFaultActivity.SendingFaultEvent, this, EventArgs.Empty);
WebServiceInputActivity webservicereceive = this.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
IComparable queueId = new EventQueueName(webservicereceive.InterfaceType, webservicereceive.MethodName, webservicereceive.QualifiedName);
Debug.Assert(queueService.Exists(queueId));
IMethodResponseMessage responseMessage = null;
WorkflowQueue queue = queueService.GetWorkflowQueue(queueId);
if (queue.Count != 0)
responseMessage = queue.Dequeue() as IMethodResponseMessage;
System.Diagnostics.Debug.Assert(responseMessage != null);
// populate exception & reset the waiting thread
responseMessage.SendException(this.Fault);
return ActivityExecutionStatus.Closed;
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
WorkflowQueuingService queueService = executionContext.GetService <WorkflowQueuingService>();
// fire event
this.RaiseEvent(WebServiceOutputActivity.SendingOutputEvent, this, EventArgs.Empty);
WebServiceInputActivity webservicereceive = this.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
if (webservicereceive == null)
{
Activity parent = this.Parent;
while (parent != null)
{
//typically if defined inside a custom activity
string qualifiedName = parent.QualifiedName + "." + this.InputActivityName;
webservicereceive = this.GetActivityByName(qualifiedName) as WebServiceInputActivity;
if (webservicereceive != null)
{
break;
}
parent = this.Parent;
}
}
if (webservicereceive == null)
{
throw new InvalidOperationException(SR.GetString(SR.Error_CannotResolveWebServiceInput, this.QualifiedName, this.InputActivityName));
}
IComparable queueId = new EventQueueName(webservicereceive.InterfaceType, webservicereceive.MethodName, webservicereceive.QualifiedName);
MethodInfo mInfo = webservicereceive.InterfaceType.GetMethod(webservicereceive.MethodName);
if (!queueService.Exists(queueId))
{
// determine if no response is required,
// compiler did not catch it, do the runtime check and return
if (mInfo.ReturnType == typeof(void))
{
return(ActivityExecutionStatus.Closed);
}
bool isresponseRequired = false;
foreach (ParameterInfo formalParameter in mInfo.GetParameters())
{
if (formalParameter.ParameterType.IsByRef || (formalParameter.IsIn && formalParameter.IsOut))
{
isresponseRequired = true;
}
}
if (isresponseRequired)
{
return(ActivityExecutionStatus.Closed);
}
}
if (!queueService.Exists(queueId))
{
throw new InvalidOperationException(SR.GetString(SR.Error_WebServiceInputNotProcessed, webservicereceive.QualifiedName));
}
IMethodResponseMessage responseMessage = null;
WorkflowQueue queue = queueService.GetWorkflowQueue(queueId);
if (queue.Count != 0)
{
responseMessage = queue.Dequeue() as IMethodResponseMessage;
}
IMethodMessage message = responseMessage as IMethodMessage;
WorkflowParameterBindingCollection parameterBindings = this.ParameterBindings;
ArrayList outArgs = new ArrayList();
// populate result
if (this.ParameterBindings.Contains("(ReturnValue)"))
{
WorkflowParameterBinding retBind = this.ParameterBindings["(ReturnValue)"];
if (retBind != null)
{
outArgs.Add(retBind.Value);
}
}
foreach (ParameterInfo formalParameter in mInfo.GetParameters())
{
// update out and byref values
if (formalParameter.ParameterType.IsByRef || (formalParameter.IsIn && formalParameter.IsOut))
{
WorkflowParameterBinding binding = parameterBindings[formalParameter.Name];
outArgs.Add(binding.Value);
}
}
// reset the waiting thread
responseMessage.SendResponse(outArgs);
return(ActivityExecutionStatus.Closed);
}
// IComparable implementation
public int CompareTo(EventQueueName eventQueueName)
{
if (eventQueueName == null)
return -1;
// compare operation
int compared = StringComparer.Ordinal.Compare(this.MethodName, eventQueueName.MethodName);
if (compared == 0)
{
// compare type names
#pragma warning disable 56506
compared = StringComparer.Ordinal.Compare(AssemblyQualifiedName, eventQueueName.AssemblyQualifiedName);
#pragma warning restore 56506
if (compared == 0)
{
if (this.correlationValues != null)
{
compared = (eventQueueName.correlationValues != null) ? (this.correlationValues.Length - eventQueueName.correlationValues.Length) : -1;
if (compared == 0)
{
// compare correlation values
for (int i = 0; i < this.correlationValues.Length; i++)
{
if (this.correlationValues[i] == null || eventQueueName.correlationValues[i] == null)
{
compared = -1;
break; // match failed
}
object leftValue = this.correlationValues[i].Value;
object rightValue = FindCorrelationValue(this.correlationValues[i].Name, eventQueueName.correlationValues);
#pragma warning suppress 56506
if (leftValue == null && rightValue == null)
{
continue;
}
// do the explicit equals check
if (leftValue != null)
{
IComparable comparable = leftValue as IComparable;
if (comparable != null)
{
compared = comparable.CompareTo(rightValue);
if (compared != 0)
{
break; // match failed
}
}
else if ((!leftValue.Equals(rightValue)))
{
compared = -1;
break; // match failed
}
}
else
{
compared = -1;
break; // match failed
}
}
}
}
}
}
return compared;
}
private static void CreateFollowerEntry(IServiceProvider context, Type interfaceType, string followermethodName, string initializermethodName)
{
if (!CorrelationResolver.IsInitializingMember(interfaceType, initializermethodName, null))
return;
WorkflowQueuingService queueSvcs = (WorkflowQueuingService)context.GetService(typeof(WorkflowQueuingService));
FollowerQueueCreator follower = new FollowerQueueCreator(followermethodName);
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "Creating follower {0} on initializer {1}", interfaceType.Name + followermethodName, interfaceType.Name + initializermethodName);
ICollection<CorrelationProperty> corrValues = CorrelationResolver.ResolveCorrelationValues(interfaceType, initializermethodName, null, true);
EventQueueName key = new EventQueueName(interfaceType, initializermethodName, corrValues);
WorkflowQueue initializerQueue = null;
if (queueSvcs.Exists(key))
{
initializerQueue = queueSvcs.GetWorkflowQueue(key);
}
else
{
// traversed follower before initializer
initializerQueue = queueSvcs.CreateWorkflowQueue(key, true);
initializerQueue.Enabled = false;
}
initializerQueue.RegisterForQueueItemArrived(follower);
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
if (executionContext == null)
throw new ArgumentNullException("executionContext");
WorkflowQueuingService queueService = executionContext.GetService<WorkflowQueuingService>();
// fire event
this.RaiseEvent(WebServiceOutputActivity.SendingOutputEvent, this, EventArgs.Empty);
WebServiceInputActivity webservicereceive = this.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
if (webservicereceive == null)
{
Activity parent = this.Parent;
while (parent != null)
{
//typically if defined inside a custom activity
string qualifiedName = parent.QualifiedName + "." + this.InputActivityName;
webservicereceive = this.GetActivityByName(qualifiedName) as WebServiceInputActivity;
if (webservicereceive != null)
break;
parent = this.Parent;
}
}
if (webservicereceive == null)
throw new InvalidOperationException(SR.GetString(SR.Error_CannotResolveWebServiceInput, this.QualifiedName, this.InputActivityName));
IComparable queueId = new EventQueueName(webservicereceive.InterfaceType, webservicereceive.MethodName, webservicereceive.QualifiedName);
MethodInfo mInfo = webservicereceive.InterfaceType.GetMethod(webservicereceive.MethodName);
if (!queueService.Exists(queueId))
{
// determine if no response is required,
// compiler did not catch it, do the runtime check and return
if (mInfo.ReturnType == typeof(void))
{
return ActivityExecutionStatus.Closed;
}
bool isresponseRequired = false;
foreach (ParameterInfo formalParameter in mInfo.GetParameters())
{
if (formalParameter.ParameterType.IsByRef || (formalParameter.IsIn && formalParameter.IsOut))
{
isresponseRequired = true;
}
}
if (isresponseRequired)
{
return ActivityExecutionStatus.Closed;
}
}
if (!queueService.Exists(queueId))
throw new InvalidOperationException(SR.GetString(SR.Error_WebServiceInputNotProcessed, webservicereceive.QualifiedName));
IMethodResponseMessage responseMessage = null;
WorkflowQueue queue = queueService.GetWorkflowQueue(queueId);
if (queue.Count != 0)
responseMessage = queue.Dequeue() as IMethodResponseMessage;
IMethodMessage message = responseMessage as IMethodMessage;
WorkflowParameterBindingCollection parameterBindings = this.ParameterBindings;
ArrayList outArgs = new ArrayList();
// populate result
if (this.ParameterBindings.Contains("(ReturnValue)"))
{
WorkflowParameterBinding retBind = this.ParameterBindings["(ReturnValue)"];
if (retBind != null)
{
outArgs.Add(retBind.Value);
}
}
foreach (ParameterInfo formalParameter in mInfo.GetParameters())
{
// update out and byref values
if (formalParameter.ParameterType.IsByRef || (formalParameter.IsIn && formalParameter.IsOut))
{
WorkflowParameterBinding binding = parameterBindings[formalParameter.Name];
outArgs.Add(binding.Value);
}
}
// reset the waiting thread
responseMessage.SendResponse(outArgs);
return ActivityExecutionStatus.Closed;
}
//Back - off logic for conflicting workflow load across workflow runtime boundaries.
static void SafeEnqueueItem(WorkflowInstance instance, EventQueueName key, MethodMessage message)
{
while (true) //When Execution times out ASP.NET going to forcefully plung this request.
{
try
{
instance.EnqueueItem(key, message, null, null);
return;
}
catch (WorkflowOwnershipException)
{
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Warning, 0, String.Format(System.Globalization.CultureInfo.InvariantCulture, "Workflow Web Host Encountered Workflow Instance Ownership conflict for instanceid {0}.", instance.InstanceId));
//Back-off for 1/2 sec. Should we make this configurable?
System.Threading.Thread.Sleep(500);
continue;
}
}
}
private static void SafeEnqueueItem(WorkflowInstance instance, EventQueueName key, MethodMessage message)
{
Label_0000:
try
{
instance.EnqueueItem(key, message, null, null);
}
catch (WorkflowOwnershipException)
{
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Warning, 0, string.Format(CultureInfo.InvariantCulture, "Workflow Web Host Encountered Workflow Instance Ownership conflict for instanceid {0}.", new object[] { instance.InstanceId }));
Thread.Sleep(500);
goto Label_0000;
}
}
protected Object[] Invoke(Type interfaceType, String methodName, bool isActivation, Object[] parameters)
{
Guid workflowInstanceId = GetWorkflowInstanceId(ref isActivation);
WorkflowInstance wfInstance;
EventQueueName key = new EventQueueName(interfaceType, methodName);
MethodInfo mInfo = interfaceType.GetMethod(methodName);
bool responseRequired = (mInfo.ReturnType != typeof(void));
if (!responseRequired)
{
foreach (ParameterInfo parameter in mInfo.GetParameters())
{
if (parameter.ParameterType.IsByRef || parameter.IsOut)
{
responseRequired = true;
break;
}
}
}
MethodMessage methodMessage = PrepareMessage(interfaceType, methodName, parameters, responseRequired);
EventHandler<WorkflowTerminatedEventArgs> workflowTerminationHandler = null;
EventHandler<WorkflowCompletedEventArgs> workflowCompletedHandler = null;
try
{
if (isActivation)
{
wfInstance = WorkflowRuntime.CreateWorkflow(this.workflowType, null, workflowInstanceId);
SafeEnqueueItem(wfInstance, key, methodMessage);
wfInstance.Start();
}
else
{
wfInstance = WorkflowRuntime.GetWorkflow(workflowInstanceId);
SafeEnqueueItem(wfInstance, key, methodMessage);
}
bool workflowTerminated = false;
//Handler for workflow termination in b/w outstanding req-response.
workflowTerminationHandler = delegate(Object sender, WorkflowTerminatedEventArgs e)
{
if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
{
methodMessage.SendException(e.Exception);
workflowTerminated = true;
}
};
workflowCompletedHandler = delegate(Object sender, WorkflowCompletedEventArgs e)
{
if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
{
methodMessage.SendException(new ApplicationException(SR.GetString(System.Globalization.CultureInfo.CurrentCulture, SR.Error_WorkflowCompleted)));
}
};
WorkflowRuntime.WorkflowTerminated += workflowTerminationHandler;
WorkflowRuntime.WorkflowCompleted += workflowCompletedHandler;
ManualWorkflowSchedulerService scheduler = WorkflowRuntime.GetService<ManualWorkflowSchedulerService>();
if (scheduler != null)
{
scheduler.RunWorkflow(wfInstance.InstanceId);
}
if (!responseRequired)
{
// no ret, out or ref
return new Object[] { };
}
IMethodResponseMessage response = methodMessage.WaitForResponseMessage();
if (response.Exception != null)
{
if (!workflowTerminated)
throw response.Exception;
else
throw new ApplicationException(SR.GetString(System.Globalization.CultureInfo.CurrentCulture, SR.Error_WorkflowTerminated), response.Exception);
}
if (response.OutArgs != null)
return ((ArrayList)response.OutArgs).ToArray();
else
return new Object[] { };
}
finally
{
if (workflowTerminationHandler != null)
WorkflowRuntime.WorkflowTerminated -= workflowTerminationHandler;
if (workflowCompletedHandler != null)
WorkflowRuntime.WorkflowCompleted -= workflowCompletedHandler;
}
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
WorkflowQueuingService service = executionContext.GetService<WorkflowQueuingService>();
base.RaiseEvent(SendingOutputEvent, this, EventArgs.Empty);
WebServiceInputActivity activityByName = base.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
if (activityByName == null)
{
for (Activity activity2 = base.Parent; activity2 != null; activity2 = base.Parent)
{
string activityQualifiedName = activity2.QualifiedName + "." + this.InputActivityName;
activityByName = base.GetActivityByName(activityQualifiedName) as WebServiceInputActivity;
if (activityByName != null)
{
break;
}
}
}
if (activityByName == null)
{
throw new InvalidOperationException(SR.GetString("Error_CannotResolveWebServiceInput", new object[] { base.QualifiedName, this.InputActivityName }));
}
IComparable queueName = new EventQueueName(activityByName.InterfaceType, activityByName.MethodName, activityByName.QualifiedName);
MethodInfo method = activityByName.InterfaceType.GetMethod(activityByName.MethodName);
if (!service.Exists(queueName))
{
if (method.ReturnType == typeof(void))
{
return ActivityExecutionStatus.Closed;
}
bool flag = false;
foreach (ParameterInfo info2 in method.GetParameters())
{
if (info2.ParameterType.IsByRef || (info2.IsIn && info2.IsOut))
{
flag = true;
}
}
if (flag)
{
return ActivityExecutionStatus.Closed;
}
}
if (!service.Exists(queueName))
{
throw new InvalidOperationException(SR.GetString("Error_WebServiceInputNotProcessed", new object[] { activityByName.QualifiedName }));
}
IMethodResponseMessage message = null;
WorkflowQueue workflowQueue = service.GetWorkflowQueue(queueName);
if (workflowQueue.Count != 0)
{
message = workflowQueue.Dequeue() as IMethodResponseMessage;
}
WorkflowParameterBindingCollection parameterBindings = this.ParameterBindings;
ArrayList outArgs = new ArrayList();
if (this.ParameterBindings.Contains("(ReturnValue)"))
{
WorkflowParameterBinding binding = this.ParameterBindings["(ReturnValue)"];
if (binding != null)
{
outArgs.Add(binding.Value);
}
}
foreach (ParameterInfo info3 in method.GetParameters())
{
if (info3.ParameterType.IsByRef || (info3.IsIn && info3.IsOut))
{
WorkflowParameterBinding binding2 = parameterBindings[info3.Name];
outArgs.Add(binding2.Value);
}
}
message.SendResponse(outArgs);
return ActivityExecutionStatus.Closed;
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
WorkflowQueuingService service = executionContext.GetService <WorkflowQueuingService>();
base.RaiseEvent(SendingOutputEvent, this, EventArgs.Empty);
WebServiceInputActivity activityByName = base.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
if (activityByName == null)
{
for (Activity activity2 = base.Parent; activity2 != null; activity2 = base.Parent)
{
string activityQualifiedName = activity2.QualifiedName + "." + this.InputActivityName;
activityByName = base.GetActivityByName(activityQualifiedName) as WebServiceInputActivity;
if (activityByName != null)
{
break;
}
}
}
if (activityByName == null)
{
throw new InvalidOperationException(SR.GetString("Error_CannotResolveWebServiceInput", new object[] { base.QualifiedName, this.InputActivityName }));
}
IComparable queueName = new EventQueueName(activityByName.InterfaceType, activityByName.MethodName, activityByName.QualifiedName);
MethodInfo method = activityByName.InterfaceType.GetMethod(activityByName.MethodName);
if (!service.Exists(queueName))
{
if (method.ReturnType == typeof(void))
{
return(ActivityExecutionStatus.Closed);
}
bool flag = false;
foreach (ParameterInfo info2 in method.GetParameters())
{
if (info2.ParameterType.IsByRef || (info2.IsIn && info2.IsOut))
{
flag = true;
}
}
if (flag)
{
return(ActivityExecutionStatus.Closed);
}
}
if (!service.Exists(queueName))
{
throw new InvalidOperationException(SR.GetString("Error_WebServiceInputNotProcessed", new object[] { activityByName.QualifiedName }));
}
IMethodResponseMessage message = null;
WorkflowQueue workflowQueue = service.GetWorkflowQueue(queueName);
if (workflowQueue.Count != 0)
{
message = workflowQueue.Dequeue() as IMethodResponseMessage;
}
WorkflowParameterBindingCollection parameterBindings = this.ParameterBindings;
ArrayList outArgs = new ArrayList();
if (this.ParameterBindings.Contains("(ReturnValue)"))
{
WorkflowParameterBinding binding = this.ParameterBindings["(ReturnValue)"];
if (binding != null)
{
outArgs.Add(binding.Value);
}
}
foreach (ParameterInfo info3 in method.GetParameters())
{
if (info3.ParameterType.IsByRef || (info3.IsIn && info3.IsOut))
{
WorkflowParameterBinding binding2 = parameterBindings[info3.Name];
outArgs.Add(binding2.Value);
}
}
message.SendResponse(outArgs);
return(ActivityExecutionStatus.Closed);
}
