static void OnWorkflowIdled(object sender, WorkflowEventArgs e)
{
WorkflowInstance workflow = e.WorkflowInstance;
Console.WriteLine("\n...waiting for 3 seconds... \n");
Thread.Sleep(3000);
// what activity is blocking the workflow
ReadOnlyCollection <WorkflowQueueInfo> wqi = workflow.GetWorkflowQueueData();
foreach (WorkflowQueueInfo q in wqi)
{
EventQueueName eq = q.QueueName as EventQueueName;
if (eq != null)
{
// get activity that is waiting for event
ReadOnlyCollection <string> blockedActivity = q.SubscribedActivityNames;
Console.WriteLine("Host: Workflow is blocked on " + blockedActivity[0]);
// this event is never going to arrive eg. employee left the company
// lets send an exception to this queue
// it will either be handled by exception handler that was modeled in workflow
// or the runtime will unwind running compensation handlers and exit the workflow
Console.WriteLine("Host: This event is not going to arrive");
Console.WriteLine("Host: Cancel workflow with unhandled exception");
workflow.EnqueueItem(q.QueueName, new Exception("ExitWorkflowException"), null, null);
}
}
}
private void SetWorkflowQueueInfo(Guid instanceId, Guid ParentWorkflowId)
{
if (instanceId != Guid.Empty && ParentWorkflowId != Guid.Empty)
{
if (!this._SubWorkflowService.IsContainChildWorkflow(instanceId, ParentWorkflowId))
{
WorkflowInstance parentInstance = this.GetWorkflowRuntime().GetWorkflow(ParentWorkflowId);
WorkflowInstance childInstance = this.GetWorkflowRuntime().GetWorkflow(instanceId);
Activity a = childInstance.GetWorkflowDefinition();
a.GetType();
ReadOnlyCollection <WorkflowQueueInfo> queue = parentInstance.GetWorkflowQueueData();
this._SubWorkflowService.SetChildWorkflow(queue, instanceId, ParentWorkflowId, a.Name);
}
}
}
static public WorkflowAction[] GetSubscribedActions(Guid workflowId)
{
List <WorkflowAction> actions = new List <WorkflowAction>();
SqlTrackingQuery sqlTrackingQuery = new SqlTrackingQuery(ConfigurationManager.ConnectionStrings[Constants.Database.TenantWorkflowStore].ConnectionString);
SqlTrackingWorkflowInstance trackingWorkflow;
if (!sqlTrackingQuery.TryGetWorkflow(workflowId, out trackingWorkflow) ||
trackingWorkflow.Status == WorkflowStatus.Completed ||
trackingWorkflow.Status == WorkflowStatus.Terminated)
{
return(actions.ToArray());
}
WorkflowInstance instance = Runtime.GetWorkflow(workflowId);
Activity workflow = instance.GetWorkflowDefinition();
ReadOnlyCollection <WorkflowQueueInfo> queues = instance.GetWorkflowQueueData();
foreach (WorkflowQueueInfo s in queues)
{
if (s.SubscribedActivityNames.Count == 0)
{
continue;
}
EventQueueName eventQueueName = s.QueueName as EventQueueName;
if (eventQueueName != null)
{
WorkflowAction action = new WorkflowAction();
action.ActionName = eventQueueName.MethodName;
string activityName = s.SubscribedActivityNames[0];
string[] splittedNames = activityName.Split('.');
action.StepName = splittedNames[0];
HandleExternalEventActivity activity = workflow.GetActivityByName(activityName) as HandleExternalEventActivity;
if (activity != null && activity.Roles != null && activity.Roles.Count > 0)
{
List <string> roleNames = new List <string>();
foreach (WorkflowRole role in activity.Roles)
{
roleNames.Add(role.Name);
}
action.QualifiedRoles = roleNames.ToArray();
}
actions.Add(action);
}
}
return(actions.ToArray());
}
public void OnFinishCallworkflowActivity(Guid instanceId)
{
WorkflowInstance instance = this.Runtime.GetWorkflow(instanceId);
ReadOnlyCollection <WorkflowQueueInfo> qeue = instance.GetWorkflowQueueData();
bool flag = true;
foreach (WorkflowQueueInfo item in qeue)
{
//string regExp = instanceId + ":" + @"\w*:\w*";
//if (Regex.IsMatch(item.QueueName.ToString(), regExp))
if (item.QueueName.ToString().Contains("ThisIsSubWorkflowSupportForkJoin") && item.QueueName.ToString().Contains(instanceId.ToString()))
{
flag = false;
}
// QueueName "2dbe6430-4ef3-432e-af2c-954d2a5cfa88:Subworkflow2:callWorkflowActivity1" System.IComparable {string}
}
if (flag)
{
SubWorkflowArgs arg = new SubWorkflowArgs(Guid.Empty, Guid.Empty, instanceId, null);
this.OnAllSubWorkflowFinished(arg);
}
}