void PredictionCallCompleted(IAsyncResult ar)
{
var predictionCall = (Func <IEnumerable <ContextPreference> >)ar.AsyncState;
var preferences = predictionCall.EndInvoke(ar);
SendOrPostCallback setList = delegate
{
lstPreferences.Items.Clear();
if (preferences != null)
{
foreach (var preference in preferences.OrderByDescending(p => p.Value))
{
var lvi = new ListViewItem();
var contextName = _contextService.GetById(preference.ContextId.ToString()).ContextName;
lvi.Text = preference.ContextId.ToString();
lvi.SubItems.Add(contextName);
lvi.SubItems.Add(preference.Value.ToString());
lstPreferences.Items.Add(lvi);
}
}
};
_syncContext.Post(setList, null);
}
public ActionResult Delete(int id)
{
var context = _contextService.GetById(id);
var viewModel = new ContextViewModel()
{
Id = context.Id,
Name = context.Name
};
return(View(viewModel));
}
void _status_UserInteraction(object sender, EventArgs e)
{
var args = e as UserInteractionEventArgs;
Debug.WriteLine("[BleDA] UserInteraction: " + args.Code.ToString());
switch (args.Code)
{
case UserInteractionCode.BetterContextFound:
_status.NotifyIcon.ShowBalloonTip(Properties.Resources.PopupWarning, Properties.Resources.MsgBetterContext, BalloonIcon.Warning);
ThreadPool.QueueUserWorkItem(new WaitCallback(AskForConfirmation));
break;
case UserInteractionCode.CurrentContextFound:
_status.NotifyIcon.ShowBalloonTip(Properties.Resources.PopupInfo,
Properties.Resources.MsgAlignmentCompleted, BalloonIcon.Info);
this.Dispatcher.BeginInvoke(new System.Action(
() => { Switcher.Switch(new ViewContextPage()); }));
break;
case UserInteractionCode.NewContextSelected:
_status.NotifyIcon.ShowBalloonTip(Properties.Resources.PopupInfo,
Properties.Resources.MsgAlignmentStarted, BalloonIcon.Info);
//_notifyIcon.HideBalloonTip();
this.Dispatcher.BeginInvoke(new System.Action(
() => { Switcher.Switch(new AlignmentPage()); }));
break;
case UserInteractionCode.PreviousContextFound:
var context = _contextService.GetById(args.PreviousContextFoundValue);
_status.NotifyIcon.ShowBalloonTip(Properties.Resources.PopupInfo,
Properties.Resources.MsgPreviousContext + context.ContextName, BalloonIcon.Info);
//_notifyIcon.HideBalloonTip();
this.Dispatcher.BeginInvoke(new System.Action(
() => { Switcher.Switch(new ViewContextPage()); }));
break;
case UserInteractionCode.TrackingSessionSucceded:
_status.NotifyIcon.ShowBalloonTip(Properties.Resources.PopupInfo,
Properties.Resources.MsgContexUpdated, BalloonIcon.Info);
break;
}
}
/// <summary>
/// Populate the context lists.
/// </summary>
/// <returns>False if update has been skipped due to the user selection</returns>
private bool UpdateContextLists()
{
// get new results
var recentContexts = _contextService.GetMostRecent((int)_settings.MostRecentLimit);
var closerContexts = _serviceClient.GetCloserContexts();
List <ContextPreferenceItem> closerContextItems = new List <ContextPreferenceItem>();
foreach (var closerContext in closerContexts.OrderByDescending(c => c.Value))
{
var context = _contextService.GetById(closerContext.ContextId);
if (context == null)
{
continue;
}
var item = new ContextPreferenceItem
{
Name = context.ContextName,
Value = closerContext.Value.ToString(),
ContextId = closerContext.ContextId
};
closerContextItems.Add(item);
}
try
{
// update could take time
// check again for user selection
bool closerSelected = listCloser.Dispatcher.Invoke(
new Func <bool>(
() => { return(listCloser.SelectedItem != null); })
);
bool recentSelected = listRecent.Dispatcher.Invoke(
new Func <bool>(
() => { return(listRecent.SelectedItem != null); })
);
if (!recentSelected && !closerSelected)
{
// update UI
listRecent.Dispatcher.Invoke(new System.Action(
() => { listRecent.ItemsSource = recentContexts; }));
listCloser.Dispatcher.Invoke(new System.Action(
() => { listCloser.ItemsSource = closerContextItems; }));
// update performed
return(true);
}
}
catch
{
// tried to access UI after Dispose()
return(false);
}
// update skipped
return(false);
}
/// <summary>
/// Try to find a scenario for the target context. On failure, a new
/// scenario is created if the creation is allowed, otherwise the
/// predicted scenario is returned.
/// </summary>
/// <returns>A prediction, or null in case of error.</returns>
public PredictionArgs Prediction()
{
Context context = null;
PredictionArgs prediction = null;
lock (_localizerLock)
{
if (ContextId != null)
{
try
{
context = _contextService.GetById(ContextId);
if (context == null)
{
// notify error
if (LocalizerErrorNotification != null)
{
var args = new LocalizerErrorNotificationEventArgs(
LocalizerErrorNotificationCode.UnknownContext);
ThreadPool.QueueUserWorkItem(new WaitCallback(DoNotification), args);
}
}
}
catch (Exception ex)
{
if (LocalizerErrorNotification != null)
{
// notify error
var args = new LocalizerErrorNotificationEventArgs(
LocalizerErrorNotificationCode.DatabaseError, ex);
ThreadPool.QueueUserWorkItem(new WaitCallback(DoNotification), args);
}
}
}
if (context != null)
{
// context found in the database
prediction = new PredictionArgs
{
Success = false
};
IEnumerable <ContextPreference> pref = null;
for (var attempts = this.Retries + 1; attempts > 0; attempts--)
{
prediction.PredictedScenario = GetScenarioForCurrentPosition(out pref);
if (prediction.PredictedScenario == null)
{
// retry, eventually..
continue;
}
if (ContextId.Equals(prediction.PredictedScenario.ContextId.ToString()))
{
// correct prediction
_scenarioService.IncreaseAccuracy(prediction.PredictedScenario);
prediction.Success = true;
break;
}
// wrong prediction
_scenarioService.DecreaseAccuracy(prediction.PredictedScenario);
}
if (!prediction.Success && CreationAllowed)
{
// create a new scenario for the requested context
prediction.PredictedScenario = new Scenario
{
ContextId = new ObjectId(ContextId),
CreationTime = DateTime.Now
};
try
{
_scenarioService.Create(prediction.PredictedScenario);
}
catch (Exception ex)
{
if (LocalizerErrorNotification != null)
{
// notify error
var args = new LocalizerErrorNotificationEventArgs(
LocalizerErrorNotificationCode.DatabaseError, ex);
ThreadPool.QueueUserWorkItem(new WaitCallback(DoNotification), args);
}
prediction = null;
}
}
} // end if(context != null)
} // unlock
return(prediction);
}