private bool ProcessQueueItem(ActivityExecutionContext context)
{
WorkflowQueuingService qService = context.GetService <WorkflowQueuingService>();
if (!qService.Exists(this.QueueName))
{
return(false);
}
WorkflowQueue queue = qService.GetWorkflowQueue(this.QueueName);
// If the queue has messages, then process the first one
if (queue.Count == 0)
{
return(false);
}
FileWatcherEventArgs e = (FileWatcherEventArgs)queue.Dequeue();
// Raise the FileSystemEvent
base.RaiseGenericEvent <FileWatcherEventArgs>(FileSystemEvent.FileWatcherEventHandlerEvent, this, e);
DoUnsubscribe(context, this);
DeleteQueue(context);
return(true);
}
private void DeliverToWorkflow(FileWatcherSubscription subscription, FileSystemEventArgs fileSystemEventArgs)
{
try
{
// We can't just use the FileSystemEventArgs because it's not serializable
FileWatcherEventArgs eventArgs = new FileWatcherEventArgs(fileSystemEventArgs);
WorkflowInstance workflowInstance = this.runtime.GetWorkflow(subscription.WorkflowInstanceId);
workflowInstance.EnqueueItem(subscription.QueueName, eventArgs, null, null);
}
catch (Exception e)
{
// Write the exception out to the Debug console and throw the exception
System.Diagnostics.Debug.WriteLine(e);
throw e;
}
}
private void DeliverToWorkflow(FileWatcherSubscription subscription, FileSystemEventArgs fileSystemEventArgs)
{
try
{
// We can't just use the FileSystemEventArgs because it's not serializable
FileWatcherEventArgs eventArgs = new FileWatcherEventArgs(fileSystemEventArgs);
WorkflowInstance workflowInstance = this.runtime.GetWorkflow(subscription.WorkflowInstanceId);
workflowInstance.EnqueueItem(subscription.QueueName, eventArgs, null, null);
}
catch (Exception e)
{
// Write the exception out to the Debug console and throw the exception
System.Diagnostics.Debug.WriteLine(e);
throw e;
}
}
private void AfterFileSystemEvent(object sender, FileWatcherEventArgs e)
{
FileSystemEvent activity = sender as FileSystemEvent;
Console.WriteLine("FileSystemEvent '" + activity.Name + "' is handling an event...");
}
private void AfterFileSystemEvent(object sender, FileWatcherEventArgs e)
{
FileSystemEvent activity = sender as FileSystemEvent;
Console.WriteLine("FileSystemEvent '" + activity.Name + "' is handling an event...");
}