public void IdlePersistenceModeShouldSave()
{
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.Never, WorkflowInstanceState.Aborted, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.Never, WorkflowInstanceState.Runnable, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.Never, WorkflowInstanceState.Idle, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.Never, WorkflowInstanceState.Idle, isStarting: true));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.Never, WorkflowInstanceState.Complete, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnCompleted, WorkflowInstanceState.Aborted, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnCompleted, WorkflowInstanceState.Runnable, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnCompleted, WorkflowInstanceState.Idle, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnCompleted, WorkflowInstanceState.Idle, isStarting: true));
Assert.IsTrue(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnCompleted, WorkflowInstanceState.Complete, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnPersistableIdle, WorkflowInstanceState.Aborted, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnPersistableIdle, WorkflowInstanceState.Runnable, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnPersistableIdle, WorkflowInstanceState.Idle, isStarting: true));
Assert.IsTrue(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnPersistableIdle, WorkflowInstanceState.Idle, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnPersistableIdle, WorkflowInstanceState.Complete, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnStart, WorkflowInstanceState.Aborted, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnStart, WorkflowInstanceState.Runnable, isStarting: false));
Assert.IsTrue(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnStart, WorkflowInstanceState.Idle, isStarting: true));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnStart, WorkflowInstanceState.Idle, isStarting: false));
Assert.IsFalse(IdlePersistenceModeExtensions.ShouldSave(IdlePersistenceMode.OnStart, WorkflowInstanceState.Complete, isStarting: false));
}
// The TAP async version of OnNotifyPaused() above.
protected async Task OnNotifyPausedAsync()
{
var workflowInstanceState = this.Controller.State;
if (workflowInstanceState == WorkflowInstanceState.Aborted)
{
// If there were a OnRequestAbort() previously, notify the host now.
if (this.onRequestAbortReason != null)
{
await NotifyHostOnUnhandledExceptionAsync(this.onRequestAbortReason, null);
}
}
else
{
try
{
// If it's completed, call OnCompletedAsync() on host.
if (workflowInstanceState == WorkflowInstanceState.Complete &&
!this.hasRaisedCompleted)
{
await IfHasPendingThenFlushTrackingRecordsAsync();
var completionState = this.Controller.GetCompletionState(out var outputs, out var terminationException);
await this.host.OnCompletedAsync(completionState, outputs, terminationException);
this.hasRaisedCompleted = true;
}
// Call OnPausedAsync() on INotificationParticipant extensions.
await OnPausedAsync();
// Track the Idle state.
if (workflowInstanceState == WorkflowInstanceState.Idle &&
this.Controller.TrackingEnabled)
{
this.Controller.Track(new WorkflowInstanceRecord(this.Id, this.WorkflowDefinition.DisplayName,
System.Activities.Tracking.WorkflowInstanceStates.Idle, this.DefinitionIdentity));
await IfHasPendingThenFlushTrackingRecordsAsync();
}
// If required, save state.
if (this.Controller.IsPersistable)
{
if (IdlePersistenceModeExtensions.ShouldSave(this.Parameters.IdlePersistenceMode, workflowInstanceState, this.IsStarting))
{
await SaveAsync();
}
this.IsStarting = false;
}
}
catch (Exception e)
{
// Notify host, this can be eg. a serialization exception!
await NotifyHostOnUnhandledExceptionAsync(e, null);
// TODO Do we really need to protect againts exceptions below? Theoretically Controller won't throw now.
// The instance will abort, independently from the configuration.
await ExecuteWithExceptionTrackingAsync(() =>
{
return(AbortAsync(e));
});
workflowInstanceState = this.Controller.State;
}
}
// finally
// TODO Do we really need to protect againts exceptions below? Theoretically Controller won't throw now.
await ExecuteWithExceptionTrackingAsync(() =>
{
// At this point it is possible, that Cancel/Teminate was called by OnNotifyUnhandledException() or OnNotifyPaused(),
// and controller/executor Run() should be called, in this case we won't set the reset event,
// the Run() will result a callback to OnNotifyPaused() or OnNotifyUnhandledException() again.
if (workflowInstanceState == WorkflowInstanceState.Runnable)
{
return(RunAsync());
}
else
{
this.host.OnNotifyIdle();
return(TaskConstants.Completed);
}
});
}