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);
}
}
}
static void OnWorkflowIdled(object sender, WorkflowEventArgs e)
{
WorkflowInstance workflowInstance = e.WorkflowInstance;
Activity wRoot = workflowInstance.GetWorkflowDefinition();
//
// use WorkflowChanges class to author dynamic change
//
WorkflowChanges changes = new WorkflowChanges(wRoot);
Console.WriteLine(" Host is denying all PO requests - Removing POCreated step");
//
// remove POCreated activity
//
changes.TransientWorkflow.Activities.Remove(changes.TransientWorkflow.Activities["POCreated"]);
//
// apply transient changes to instance
//
workflowInstance.ApplyWorkflowChanges(changes);
}
// This method will be called when a workflow instance is idled
static void OnWorkflowIdled(object sender, WorkflowEventArgs e)
{
orderService.instanceId = e.WorkflowInstance;
// Randomly approve, reject or timeout purchase orders
Random randGen = new Random();
int pick = randGen.Next(1, 100) % 3;
switch (pick)
{
case 0:
orderService.ApproveOrder();
break;
case 1:
orderService.RejectOrder();
break;
case 2:
// timeout
break;
}
}
static void OnWorkflowIdle(object sender, WorkflowEventArgs e)
{
if (wasChanged)
return;
wasChanged = true;
WorkflowInstance workflowInstance = e.WorkflowInstance;
Int32 newAmount = 15000;
Console.WriteLine("Dynamically change approved amount to {0:c}", newAmount);
// Dynamic update of order rule
WorkflowChanges workflowchanges = new WorkflowChanges(workflowInstance.GetWorkflowDefinition());
CompositeActivity transient = workflowchanges.TransientWorkflow;
RuleDefinitions ruleDefinitions = (RuleDefinitions)transient.GetValue(RuleDefinitions.RuleDefinitionsProperty);
RuleConditionCollection conditions = ruleDefinitions.Conditions;
RuleExpressionCondition condition1 = (RuleExpressionCondition)conditions["Check"];
(condition1.Expression as CodeBinaryOperatorExpression).Right = new CodePrimitiveExpression(newAmount);
workflowInstance.ApplyWorkflowChanges(workflowchanges);
}
/// <summary>
/// Handles the WorkflowStarted event of the WorkflowRuntime control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Workflow.Runtime.WorkflowEventArgs"/> instance containing the event data.</param>
static void WorkflowRuntime_WorkflowStarted(object sender, WorkflowEventArgs e)
{
DateTime dateTimeNow = DataContext.Current.CurrentUserTimeZone.ToLocalTime(DateTime.UtcNow);
WorkflowInstanceEntity wf = (WorkflowInstanceEntity)BusinessManager.Load(WorkflowInstanceEntity.ClassName, (PrimaryKeyId)e.WorkflowInstance.InstanceId);
wf.ActualStartDate = dateTimeNow;
wf.State = (int)BusinessProcessState.Active;
BusinessManager.Update(wf);
}
private void InstanceUnloaded(object sender, WorkflowEventArgs args)
{
// Treat this as if the instance completed so that it won't show up in the UI anymore.
try
{
UnloadExistingInstance(args.WorkflowInstance);
}
catch
{
// Don't throw exceptions to the Runtime. Ignore exceptions that may occur if the debugger detaches
// and closes the remoting channel.
}
}
void workflowRuntime_WorkflowIdled(object sender, WorkflowEventArgs e)
{
this.UpdateButtonStatus();
}
static void wr_WorkflowCreated(object sender, WorkflowEventArgs e)
{
Console.ForegroundColor = ConsoleColor.DarkYellow;
Console.WriteLine("Created:\t{0}, {1}", e.WorkflowInstance.InstanceId, e.WorkflowInstance.GetWorkflowDefinition().Name);
Console.ResetColor();
}
private void _runtime_WorkflowCreated(object sender, WorkflowEventArgs e)
{
LogStatus(e.WorkflowInstance.InstanceId, "WorkflowCreated");
}
static void Runtime_WorkflowIdled(object sender, WorkflowEventArgs e)
{
//CurrentResultsInContext = WorkflowResults.CreateRunningWorkflowResults(e);
}
static void OnWorkflowCreated(object sender, WorkflowEventArgs e)
{
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "Host", "Host: Processed WorkflowCreated Event");
}
private WorkflowResults(WorkflowEventArgs args)
{
Check.ArgumentIsNotNull(args, "args");
InstanceId = args.WorkflowInstance.InstanceId;
}
//public WorkflowResults CreateAbortedWorkflowResults(WorkflowEventArgs args)
//{
// WorkflowResults results = new WorkflowResults(args);
// results.Status = WorkflowStatus.Aborted;
// return results;
//}
public static WorkflowResults CreateRunningWorkflowResults(WorkflowEventArgs args)
{
WorkflowResults results = new WorkflowResults(args);
results.Status = WorkflowStatus.Running;
return results;
}
// Fired when the workflow is loaded from storage
private void theWorkflowRuntime_WorkflowLoaded(object sender, WorkflowEventArgs e)
{
Trace.TraceInformation(string.Format(
"Workflow report: The instance {0} is loading from storage.", e.WorkflowInstance.InstanceId));
}
private void theWorkflowRuntime_WorkflowIdled(object sender, WorkflowEventArgs e)
{
Trace.TraceInformation(string.Format(
"Workflow report: The instance {0} is going idled.", e.WorkflowInstance.InstanceId));
ThreadPool.QueueUserWorkItem(UnloadInstance, e.WorkflowInstance);
}
static void OnWorkflowResume(object sender, WorkflowEventArgs instance)
{
Console.WriteLine("\nWorkflow Resumed event raised");
}
static void Runtime_WorkflowAborted(object sender, WorkflowEventArgs e)
{
//CurrentResultsInContext = WorkflowResults.CreateAbortedWorkflowResults(e);
}
static void OnWorkflowIdled(object sender, WorkflowEventArgs e)
{
if (workflowRuntime.GetService<ManualWorkflowSchedulerService>() != null)
{
// Set a system timer to reload this workflow when its next timer expires
SetReloadWorkflowTimer();
}
else
{
readyHandle.Set();
}
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "Host", "Host: Processed WorkflowIdle Event");
Console.WriteLine("\n--- Workflow Idle ---\n");
}
private static void OnWorkflowAborted(object sender, WorkflowEventArgs e)
{
Console.WriteLine("Workflow has been aborted.");
waitHandle.Set();
}
private void LogWorkflowChange(string change, WorkflowEventArgs args, bool logUserName, bool workflowDefinitionAvailable, bool error)
{
WorkflowInstance instance = null;
string activityTypeName = null;
try
{
instance = args.WorkflowInstance;
}
catch
{
// Silent
}
if (workflowDefinitionAvailable && instance != null)
{
try
{
activityTypeName = instance.GetWorkflowDefinition().GetType().FullName;
}
catch
{
// Silent
}
}
var message = new StringBuilder("Workflow ").Append(change);
if (activityTypeName != null)
{
message.Append(", Activity = " + activityTypeName);
}
if (instance != null)
{
message.Append(", Id = " + instance.InstanceId);
}
if (logUserName)
{
string identity = UserValidationFacade.IsLoggedIn() ? UserValidationFacade.GetUsername() : "(system process)";
message.Append(", User = " + identity);
}
if (!error)
{
Log.LogVerbose(LogTitle, message.ToString());
}
else
{
Log.LogError(LogTitle, message.ToString());
}
}
private void _runtime_WorkflowAborted(object sender, WorkflowEventArgs e)
{
LogStatus(e.WorkflowInstance.InstanceId, "WorkflowAborted");
//ManagedWorkflowInstance managedInstance = FindWorkflow(e.WorkflowInstance.InstanceId);
//if (managedInstance != null)
//{
// managedInstance.StopWaiting();
//}
}
// Called when a workflow is started
static void OnWorkflowStarted(object sender, WorkflowEventArgs e)
{
Console.WriteLine("Workflow started.\n");
}
static void wr_WorkflowIdled(object sender, WorkflowEventArgs e)
{
Console.ForegroundColor = ConsoleColor.DarkYellow;
Console.WriteLine("Idled:\t\t{0}", e.WorkflowInstance.InstanceId);
Console.ResetColor();
}
//Called when the workflow is persisted - in this sample when it is unloaded and completed
static void OnWorkflowPersisted(object sender, WorkflowEventArgs e)
{
Console.WriteLine("Workflow was persisted.");
}
static void OnWorkflowIdled(object sender, WorkflowEventArgs e)
{
// Raise the DocumentApproved event
Console.WriteLine("\nHost: RaiseDocumentApproval event to load workflow");
documentApprover.RaiseDocumentApproved(e.WorkflowInstance.InstanceId, "Approver1");
}
//Called when the workflow is idle - in this sample this occurs when the workflow is waiting on the
// delay1 activity to expire.
static void OnWorkflowIdled(object sender, WorkflowEventArgs e)
{
Console.WriteLine("Workflow is idle.");
e.WorkflowInstance.TryUnload();
}
private void InstanceTerminated(object sender, WorkflowEventArgs args)
{
try
{
UnloadExistingInstance(args.WorkflowInstance);
}
catch
{
// Don't throw exceptions to the Runtime. Ignore exceptions that may occur if the debugger detaches
// and closes the remoting channel.
}
}
static void OnWorkflowAborted(object sender, WorkflowEventArgs e)
{
Console.WriteLine("Workflow aborted: Please check database connectivity");
waitHandle.Set();
}
private void Runtime_WorkflowIdled(object sender, WorkflowEventArgs e)
{
// Get the underlying WorkflowInstance
StateMachineWorkflowInstance stateMachineInstance = new StateMachineWorkflowInstance(runtime, e.WorkflowInstance.InstanceId);
// Update the Workflow State & Status on the ListItem
this.UpdateListItem(stateMachineInstance.WorkflowInstance,stateMachineInstance.CurrentState.Name, "Running");
// Update the status of the buttons for the selected ListItem
this.UpdateUI();
}
//Called when the workflow is unloaded from memory - in this sample the workflow instance is unloaded by the application
// in the UnloadInstance method below.
static void OnWorkflowUnloaded(object sender, WorkflowEventArgs e)
{
Console.WriteLine("Workflow was unloaded.");
}