internal void TagActivity(string tag, SensorEventViewModel sensorEvent)
{
sensorEvent.Activity = GetActivityByName(tag);
int stringIndex = _dictDateEvents[CurrentDate].Offset + _allEventsInView.IndexOf(sensorEvent);
_eventStringList[stringIndex] = sensorEvent.ToString();
}
private void ApplyFilter()
{
bool IsActivityFilterEnabled = EventViewFilter.IsActivityFilterEnabled;
// Apply filter to all events
for (int idEvent = 0; idEvent < _allEventsInView.Count; idEvent++)
{
SensorEventViewModel sensorEvent = _allEventsInView[idEvent];
sensorEvent.IsFiltered = !ApplyStaticFilter(sensorEvent);
sensorEvent.IsActivityFiltered = !ApplyActivityFilter(sensorEvent);
sensorEvent.IsExpandedInView = false;
sensorEvent.IsStartOfSegment = false;
sensorEvent.IsEndOfSegment = false;
}
if (IsActivityFilterEnabled)
{
for (int idEvent = 0; idEvent < _allEventsInView.Count; idEvent++)
{
SensorEventViewModel sensorEvent = _allEventsInView[idEvent];
if (sensorEvent.IsActivityFiltered)
{
ExpandFilteredEvents(idEvent);
}
}
}
EventsInView.Refresh();
}
internal void FilterExpand(SensorEventViewModel sensorEvent)
{
int idEvent = _allEventsInView.IndexOf(sensorEvent);
if (idEvent < 0)
{
return;
}
int count = 0;
if (sensorEvent.IsStartOfSegment)
{
sensorEvent.IsStartOfSegment = false;
idEvent--;
while (idEvent >= 0 && count < iExpandUnit)
{
if (_allEventsInView[idEvent].IsActivityFiltered || _allEventsInView[idEvent].IsExpandedInView)
{
_allEventsInView[idEvent].IsEndOfSegment = false;
break;
}
if (_allEventsInView[idEvent].IsFiltered)
{
_allEventsInView[idEvent].IsExpandedInView = true;
count++;
}
idEvent--;
}
idEvent++;
if (count == iExpandUnit && idEvent > 0)
{
_allEventsInView[idEvent].IsStartOfSegment = true;
}
}
else
{
sensorEvent.IsEndOfSegment = false;
idEvent++;
while (idEvent < _allEventsInView.Count && count < iExpandUnit)
{
if (_allEventsInView[idEvent].IsActivityFiltered || _allEventsInView[idEvent].IsExpandedInView)
{
_allEventsInView[idEvent].IsStartOfSegment = false;
break;
}
if (_allEventsInView[idEvent].IsFiltered)
{
_allEventsInView[idEvent].IsExpandedInView = true;
count++;
}
idEvent++;
}
idEvent--;
if (count == iExpandUnit && idEvent < _allEventsInView.Count)
{
_allEventsInView[idEvent].IsEndOfSegment = true;
}
}
EventsInView.Refresh();
}
public async Task LoadEventsAsync(DateTimeOffset date, bool forceReload = false)
{
// Off states
HashSet <string> sensorOffSet = new HashSet <string>()
{
"off", "close", "absent"
};
if (!forceReload && date == CurrentDate)
{
return;
}
_allEventsInView.Clear();
_activeSensorsList.Clear();
EventOffset eventOffsetTuple;
if (_dictDateEvents.TryGetValue(date, out eventOffsetTuple))
{
int start = eventOffsetTuple.Offset;
int length = eventOffsetTuple.Length;
for (int i = start; i < start + length; i++)
{
SensorEventViewModel currentEvent = ParseSensorEventFromString(_eventStringList[i]);
_allEventsInView.Add(currentEvent);
HashSet <string> currentActiveSensors = (i == start) ? new HashSet <string>() :
new HashSet <string>(_activeSensorsList[i - start - 1]);
if (sensorOffSet.Contains(currentEvent.SensorState.ToLower()))
{
if (currentActiveSensors.Contains(currentEvent.Sensor.Name))
{
currentActiveSensors.Remove(currentEvent.Sensor.Name);
}
}
else
{
if (!currentActiveSensors.Contains(currentEvent.Sensor.Name))
{
currentActiveSensors.Add(currentEvent.Sensor.Name);
}
}
_activeSensorsList.Add(currentActiveSensors);
}
InitSensorFireStatus();
await dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
CurrentDate = date;
ApplyFilter();
NumEventsInView = EventsInView.Count;
});
}
else
{
appLog.Error("Date {0} not found in events.", date.ToString("G"));
}
}
internal void TagAllResidents(string tag)
{
for (int idEvent = 0; idEvent < _eventStringList.Count; idEvent++)
{
string strCurrentEvent = _eventStringList[idEvent];
SensorEventViewModel sensorEvent = ParseSensorEventFromString(strCurrentEvent);
sensorEvent.Resident = GetResidentByName(tag);
_eventStringList[idEvent] = sensorEvent.ToString();
}
IsEventsModified = true;
}
internal void UntagAllActivities()
{
for (int idEvent = 0; idEvent < _eventStringList.Count; idEvent++)
{
string strCurrentEvent = _eventStringList[idEvent];
SensorEventViewModel sensorEvent = ParseSensorEventFromString(strCurrentEvent);
sensorEvent.Activity = ActivityViewModel.NullActivity;
_eventStringList[idEvent] = sensorEvent.ToString();
}
IsEventsModified = true;
}
private SensorEventViewModel FindComplementaryEvent(SensorEventViewModel sensorEvent)
{
if (SensorStatusStartToken.Contains(sensorEvent.SensorState))
{
// Search forward
int curIndex = _allEventsInView.IndexOf(sensorEvent);
for (int i = curIndex + 1; i < _allEventsInView.Count; i++)
{
if ((_allEventsInView[i].TimeTag - sensorEvent.TimeTag).TotalSeconds > 3600)
{
break;
}
if (_allEventsInView[i].Sensor == sensorEvent.Sensor)
{
if (SensorStatusStopToken.Contains(_allEventsInView[i].SensorState))
{
return(_allEventsInView[i]);
}
else
{
break;
}
}
}
}
else if (SensorStatusStopToken.Contains(sensorEvent.SensorState))
{
// Search backward
int curIndex = _allEventsInView.IndexOf(sensorEvent);
for (int i = curIndex - 1; i >= 0; i--)
{
if ((sensorEvent.TimeTag - _allEventsInView[i].TimeTag).TotalSeconds > 3600)
{
break;
}
if (_allEventsInView[i].Sensor == sensorEvent.Sensor)
{
if (SensorStatusStartToken.Contains(_allEventsInView[i].SensorState))
{
return(_allEventsInView[i]);
}
else
{
break;
}
}
}
}
// Do not have/find compllementary pair, return null
return(null);
}
internal void FillNullActivity()
{
for (int idEvent = 0; idEvent < _eventStringList.Count; idEvent++)
{
string strCurrentEvent = _eventStringList[idEvent];
SensorEventViewModel sensorEvent = ParseSensorEventFromString(strCurrentEvent);
if (sensorEvent.Activity == ActivityViewModel.NullActivity)
{
sensorEvent.Activity = GetActivityByName("Other_Activity", true, true);
IsEventsModified = true;
}
_eventStringList[idEvent] = sensorEvent.ToString();
}
}
internal Dictionary <ResidentViewModel, List <SensorEventViewModel> > GetPastStepsOfResidents(int maxSeconds = 7200, int maxSteps = 1000)
{
Dictionary <ResidentViewModel, List <SensorEventViewModel> > pastStepsOfResidents =
new Dictionary <ResidentViewModel, List <SensorEventViewModel> >();
if (SelectedSensorEvent == null)
{
return(pastStepsOfResidents);
}
Dictionary <ResidentViewModel, HashSet <SensorViewModel> > sensorCheckDictionary =
new Dictionary <ResidentViewModel, HashSet <SensorViewModel> >();
foreach (ResidentViewModel resident in Residents)
{
sensorCheckDictionary.Add(resident, new HashSet <SensorViewModel>());
pastStepsOfResidents.Add(resident, new List <SensorEventViewModel>());
}
int eventIndex = _allEventsInView.IndexOf(SelectedSensorEvent);
DateTimeOffset eventTimeTag = SelectedSensorEvent.TimeTag;
for (int i = eventIndex; i >= 0; i--)
{
SensorEventViewModel tempEvent = _allEventsInView[i];
// If exceeds maxSSeconds
if ((eventTimeTag - tempEvent.TimeTag).TotalSeconds > maxSeconds)
{
break;
}
// If exceeds maxSteps
if (eventIndex - i > maxSteps)
{
break;
}
// Otherwise, Log sensor if resident is labelled.
if (tempEvent.Resident != ResidentViewModel.NullResident)
{
// TODO Check if Resident does not exist in Dictionary
if (!sensorCheckDictionary[tempEvent.Resident].Contains(tempEvent.Sensor))
{
if (!SensorStatusStopToken.Contains(tempEvent.SensorState))
{
pastStepsOfResidents[tempEvent.Resident].Add(tempEvent);
//sensorCheckDictionary[tempEvent.Resident].Add(tempEvent.Sensor);
}
}
}
}
return(pastStepsOfResidents);
}
private bool ApplyActivityFilter(SensorEventViewModel sensorEvent)
{
if (EventViewFilter.IsActivityFilterEnabled && EventViewFilter.Activities.Count > 0)
{
if (EventViewFilter.Activities.Contains(sensorEvent.Activity.Name))
{
return(true);
}
return(sensorEvent.Activity == ActivityViewModel.NullActivity);
}
else
{
return(false);
}
}
internal void TagActivity(string tag, List <SensorEventViewModel> selectedEvents)
{
foreach (SensorEventViewModel sensorEvent in selectedEvents)
{
if (sensorEvent.Activity.Name != tag)
{
TagActivity(tag, sensorEvent);
SensorEventViewModel complementaryEvent = FindComplementaryEvent(sensorEvent);
if (complementaryEvent != null)
{
TagActivity(tag, complementaryEvent);
}
}
}
IsEventsModified = true;
}
public SensorEventViewModel ParseSensorEventFromString(string eventString)
{
SensorEventViewModel sensorEvent = new SensorEventViewModel();
string[] tokenList = eventString.Split(new Char[] { ',' });
int numToken = tokenList.Count();
if (numToken < 3)
{
throw new ArgumentException("Number of Tokens in Sensor Event String is smaller than 3");
}
// First Token: Date, Second Token: Time (with AM/PM), required
sensorEvent.TimeTag = DateTimeOffset.Parse(tokenList[0]);
// Third Token: SensorID, required
sensorEvent.Sensor = GetSensorByName(tokenList[1]);
// Fourth Token: Status, required
sensorEvent.SensorState = tokenList[2];
// Fifth Token: Occupant
if (numToken > 3 && !string.IsNullOrWhiteSpace(tokenList[3]))
{
sensorEvent.Resident = GetResidentByName(tokenList[3], true);
}
else
{
sensorEvent.Resident = ResidentViewModel.NullResident;
}
// Sixth Token: Activity Labels
if (numToken > 4 && !string.IsNullOrWhiteSpace(tokenList[4]))
{
sensorEvent.Activity = GetActivityByName(tokenList[4], true);
}
else
{
sensorEvent.Activity = ActivityViewModel.NullActivity;
}
// The Rest: Comments
if (numToken > 5)
{
sensorEvent.Comments = string.Join(",", tokenList.Skip(5));
}
else
{
sensorEvent.Comments = "";
}
return(sensorEvent);
}
/// <summary>
/// Apply static filters such ad null activities, null residents, sensor status or sensor categories on sensor event.
/// </summary>
/// <param name="sensorEvent"></param>
/// <returns>true if the sensor event is hidden</returns>
private bool ApplyStaticFilter(SensorEventViewModel sensorEvent)
{
if (EventViewFilter.HideEventsWithoutActivity)
{
if ((Activity)sensorEvent.Activity == Activity.NullActivity)
{
return(true);
}
}
if (EventViewFilter.HideEventsWithoutResident)
{
if ((Resident)sensorEvent.Resident == Resident.NullResident)
{
return(true);
}
}
if (EventViewFilter.SensorStatus.Contains(sensorEvent.SensorState))
{
return(true);
}
if (EventViewFilter.Residents.Contains(sensorEvent.Resident.Name))
{
return(true);
}
//foreach (string activityName in EventViewFilter.Activities)
//{
// if (sensorEvent.Activity.Name == activityName) return true;
//}
foreach (string sensorCategory in EventViewFilter.SensorCategories)
{
if (sensorEvent.Sensor.SensorCategories.Contains(sensorCategory))
{
return(true);
}
}
return(false);
}
public int IndexOf(SensorEventViewModel item)
{
return(_storage.IndexOf(item));
}
public void Add(SensorEventViewModel item)
{
throw new NotImplementedException();
}
public bool Contains(SensorEventViewModel item)
{
return(_storage.Contains(item));
}
public bool Remove(SensorEventViewModel item)
{
throw new NotImplementedException();
}
private bool FilterEvent(SensorEventViewModel sensorEvent)
{
/* Looking for IsFiltered and IsExpandedInView property */
return(!((sensorEvent.IsFiltered && sensorEvent.IsActivityFiltered) || sensorEvent.IsExpandedInView));
}
private async Task <int> LoadDateAsync(CancellationToken c, DateTime datetime,
ObservableCollection <AnnotationFile> annotationFileList = null,
ObservableCollection <ActivityViewModel> activityCollection = null, int numBefore = 10)
{
List <int> annotationStartOffset = new List <int>();
List <int> annotationCurIndex = new List <int>();
appLog.Info(this.GetType().Name, string.Format("Loading events on {0} into Listview.", datetime.ToString("D")));
try
{
DateTime dateTimeToLoad = datetime.Date;
int offset = 0;
int nextOffset = 0;
int Count = 0;
if (dateTimeToLoad < _firstEventDate)
{
offset = _eventOffsetList[_firstEventDate];
nextOffset = _eventOffsetList[_eventDateList[1]];
_curDate = _firstEventDate;
}
else if (dateTimeToLoad >= _lastEventDate)
{
offset = _eventOffsetList[_lastEventDate];
nextOffset = _eventList.Count;
_curDate = _lastEventDate;
}
else
{
while (!_eventOffsetList.TryGetValue(dateTimeToLoad, out offset))
{
dateTimeToLoad = dateTimeToLoad.AddDays(1);
}
nextOffset = _eventOffsetList[_eventDateList[_eventDateList.IndexOf(dateTimeToLoad) + 1]];
_curDate = dateTimeToLoad;
}
Count = nextOffset - offset;
// Prepare tuple for start location for each annotated file
if (annotationFileList != null)
{
for (int i = 0; i < annotationFileList.Count; i++)
{
int startOffset = annotationFileList[i].GetOffsetByDate(_curDate);
annotationStartOffset.Add(startOffset);
annotationCurIndex.Add(startOffset);
}
}
_internal_storage.Clear();
for (int i = offset; i < nextOffset; i++)
{
SensorEventViewModel sensorEventViewModel = new SensorEventViewModel(new Models.SensorEvent());
sensorEventViewModel.FromString(_eventList[i]);
sensorEventViewModel.index = i - offset;
if (_isOffStateHidden && sensorEventViewModel.SensorState.ToUpper() == "OFF")
{
sensorEventViewModel.Skip = true;
sensorEventViewModel.IsVisible = false;
}
_internal_storage.Add(sensorEventViewModel);
// Populate annotation if specified
if (annotationFileList != null)
{
var emptyProbability = new List <Tuple <string, double> >();
for (int j = 0; j < annotationFileList.Count; j++)
{
ClassifiedLabelViewModel predictionModel = new ClassifiedLabelViewModel();
predictionModel.GroundTruth = sensorEventViewModel.ActivityLabel;
if (annotationCurIndex[j] <= 0)
{
predictionModel.ActivityLabel = "";
}
else
{
var curPredictionEntry = annotationFileList[j].PredictionList[annotationCurIndex[j]];
var lastPredictionEntry = (annotationCurIndex[j] == 0) ? null : annotationFileList[j].PredictionList[annotationCurIndex[j] - 1];
string previousLabel = (lastPredictionEntry == null) ? "" : lastPredictionEntry.ActivityLabel;
List <Tuple <string, double> > previousProbability = (lastPredictionEntry == null) ? emptyProbability : lastPredictionEntry.ActivityProbability;
if (sensorEventViewModel.TimeTag >= curPredictionEntry.TimeTag)
{
predictionModel.ActivityLabel = curPredictionEntry.ActivityLabel;
predictionModel.ActivityProbability = curPredictionEntry.ActivityProbability;
annotationCurIndex[j]++;
}
else
{
predictionModel.ActivityLabel = previousLabel;
predictionModel.ActivityProbability = previousProbability;
}
}
sensorEventViewModel.ClassifiedActivityLabels.Add(predictionModel);
}
}
}
// Apply Filter if necessary
if (activityCollection != null)
{
ApplyActivityFilters(activityCollection);
}
// Populate list view
Refresh();
return(Count);
}
finally
{
_busy = false;
}
}
public async Task ImportAnnotationAsync(StorageFile annotationFile)
{
using (var inputStream = await annotationFile.OpenReadAsync())
using (var classicStream = inputStream.AsStreamForRead())
using (var streamReader = new StreamReader(classicStream))
{
int lineNo = 0;
int idEvent = 0;
string[] tokenList;
// Make sure Other_Activity exists in dataset metadata.
ActivityViewModel curActivity = GetActivityByName("Other_Activity", true, true);
string curAnnotationTag = "";
// Add Other Activity to activity list
while (streamReader.Peek() >= 0)
{
string curEventString = streamReader.ReadLine();
if (string.IsNullOrWhiteSpace(curEventString))
{
continue;
}
tokenList = curEventString.Split(new char[] { ' ', '\t', ',' });
// Get the Date of the String and add to dictionary
DateTime curEventTimeTag = DateTime.Parse(tokenList[0] + ' ' + tokenList[1]);
// Check the activity label of current event
if (tokenList.Length > 4 && !string.IsNullOrWhiteSpace(tokenList[4]))
{
// Process annotation tag
string[] subTokenList = tokenList[4].Split(new char[] { '=' });
curActivity = GetActivityByName(subTokenList[0], true, true);
// In case the ="begin" part is missing in the annotation
if (subTokenList.Length < 2)
{
if (curAnnotationTag == "\"begin\"")
{
curAnnotationTag = "\"end\"";
}
else
{
curAnnotationTag = "\"begin\"";
}
}
else
{
curAnnotationTag = subTokenList[1];
}
}
// Append Activity
while (idEvent < _eventStringList.Count)
{
// Check datetime of current event
SensorEventViewModel sensorEvent = ParseSensorEventFromString(_eventStringList[idEvent]);
if (sensorEvent.TimeTag.DateTime <= curEventTimeTag)
{
sensorEvent.Activity = curActivity;
_eventStringList[idEvent] = sensorEvent.ToString();
idEvent++;
}
else
{
break;
}
}
// If activity end, update annotation token to OtherActivity
if (curAnnotationTag == "\"end\"")
{
curActivity = GetActivityByName("Other_Activity");;
curAnnotationTag = "";
}
// Log Token
lineNo++;
}
}
this.IsDatasetModified = true;
this.IsEventsModified = true;
}
public void Insert(int index, SensorEventViewModel item)
{
throw new NotImplementedException();
}