internal void ProcessesQueuedAsynchronousEvents()
{
Queue messages = this.GetQueue("*PendingNotifications").Messages;
while (messages.Count > 0)
{
KeyValuePair <IComparable, EventQueueState> pair = (KeyValuePair <IComparable, EventQueueState>)messages.Dequeue();
WorkflowTrace.Runtime.TraceInformation("Queuing Service: Processing delayed message notification '{0}'", new object[] { pair.Key.ToString() });
for (int i = 0; (this.messageArrivalEventHandlers != null) && (i < this.messageArrivalEventHandlers.Count); i++)
{
WorkflowQueuingService service = this.messageArrivalEventHandlers[i];
if (service.persistedQueueStates.ContainsKey(pair.Key))
{
EventQueueState queue = service.GetQueue(pair.Key);
if (queue.Enabled)
{
service.NotifyAsynchronousSubscribers(pair.Key, queue, 1);
}
}
}
this.NotifyAsynchronousSubscribers(pair.Key, pair.Value, 1);
}
}
public void RegisterForQueueItemAvailable(IActivityEventListener <QueueEventArgs> eventListener, string subscriberQualifiedName)
{
if (eventListener == null)
{
throw new ArgumentNullException("eventListener");
}
lock (qService.SyncRoot)
{
EventQueueState qState = qService.GetQueueState(this.queueName);
ActivityExecutorDelegateInfo <QueueEventArgs> subscriber = new ActivityExecutorDelegateInfo <QueueEventArgs>(eventListener, qService.CallingActivity);
if (subscriberQualifiedName != null)
{
subscriber.SubscribedActivityQualifiedName = subscriberQualifiedName;
}
qState.AsynchronousListeners.Add(subscriber);
WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 0, "WorkflowQueue:QueueItemAvailable subscribe for activity '{0}' with context Id {1}", subscriber.ActivityQualifiedName, subscriber.ContextId);
if (qState.AsynchronousListeners.Count == 1)
{
qService.NotifyAsynchronousSubscribers(this.queueName, qState, qState.Messages.Count);
}
}
}
internal void ProcessesQueuedAsynchronousEvents()
{
Queue q = GetQueue(pendingNotification).Messages;
while (q.Count > 0)
{
KeyValuePair <IComparable, EventQueueState> pair = (KeyValuePair <IComparable, EventQueueState>)q.Dequeue();
// notify message arrived subscribers
WorkflowTrace.Runtime.TraceInformation("Queuing Service: Processing delayed message notification '{0}'", pair.Key.ToString());
for (int i = 0; messageArrivalEventHandlers != null && i < messageArrivalEventHandlers.Count; ++i)
{
WorkflowQueuingService service = this.messageArrivalEventHandlers[i];
if (service.persistedQueueStates.ContainsKey(pair.Key))
{
EventQueueState qState = service.GetQueue(pair.Key);
if (qState.Enabled)
{
service.NotifyAsynchronousSubscribers(pair.Key, qState, 1);
}
}
}
NotifyAsynchronousSubscribers(pair.Key, pair.Value, 1);
}
}
