/// <summary>
/// This function loads the data from the database into the fields and update the user interface
/// </summary>
/// <author>Thomas Meents, Bernhard Bruns</author>
private void LoadDataFromDatabase()
{
string connectionName = DBWorker.GetConnectionName();
Dispatcher.BeginInvoke((Action)(() =>
{
MiningInfo.BBCode += "\nLoading data from " + connectionName;
MiningInfoScrollViewer.ScrollToEnd();
}));
if (MainWindow.MatrixSelection.SelectionHasChangedSinceLastLoading || EventSelectionModel.GetInstance().SelectionHasChangedSinceLastLoading)
{
foreach (Field field in MainWindow.MatrixSelection.MatrixFields)
{
if (_cancellationToken.IsCancellationRequested)
{
break;
}
DBConnectionHelpers.LoadFactsInField(field);
Dispatcher.BeginInvoke((Action)(() =>
{
ProgressBar.Value += 1;
}));
}
MainWindow.MatrixSelection.SelectionHasChangedSinceLastLoading = false;
EventSelectionModel.GetInstance().SelectionHasChangedSinceLastLoading = false;
}
}
/// <summary>
/// Builds an EventDimensionSelector for each event dimension.
/// </summary>
private void BuildEventDimensionsSelectors()
{
//reset gui
EventDimensionList.Children.Clear();
//clear the the internal representation of the selected dimensions
EventSelectionModel.GetInstance().Clear();
_listOfDimensionSelectors = new List <EventDimensionSelector>();
if (DBWorker.MetaData == null || DBWorker.MetaData.ListOfEventDimensions == null || DBWorker.MetaData.ListOfEventDimensions.Count == 0)
{
TextBlock textBlock = new TextBlock {
Text = "No events available."
};
EventDimensionList.Children.Add(textBlock);
return;
}
//build EventDimensionSelector for each event dimension
for (int i = 0; i < DBWorker.MetaData.ListOfEventDimensions.Count; i++)
{
//skip empty dimension
if (DBWorker.MetaData.ListOfEventDimensions[i].IsEmptyDimension)
{
continue;
}
//create EventDimensionSelector for dimension
int axis = i + 1;
EventDimensionSelector dimSelector = new EventDimensionSelector(axis);
dimSelector.Init(DBWorker.MetaData.ListOfEventDimensions, DBWorker.MetaData.ListOfEventDimensions[i]);
_listOfDimensionSelectors.Add(dimSelector);
//add selector to panel
EventDimensionList.Children.Add(dimSelector.DimensionSelectorGrid);
}
//build internal representation of the selected dimensions
foreach (EventDimensionSelector dimSelector in _listOfDimensionSelectors)
{
int axis = dimSelector.Axis;
Dimension dim = dimSelector.ShowedDimension;
int levelDepth = dimSelector.GetSelectedLevelDepth();
int aggregationDepth = dimSelector.GetSelectedAggregationDepth();
List <DimensionContent> dimContent = dimSelector.GetSelectedDimensionContent();
EventSelectionModel.GetInstance().AddSelectedDimension(new SelectedDimension(axis, dim, levelDepth, aggregationDepth - 1, true, dimContent, true));
}
InitEventListener();
}
/// <summary>
/// Load a list of facts and eventlogs in the fields.
/// </summary>
/// <param name="field"></param>
/// <author>Bernhard Bruns,Thomas Meents, Moritz Eversmann</author>
public static bool LoadFactsInField(Field field)
{
try
{
List <List <Case> > listOfFacts = DBWorker.GetFacts(MainWindow.MatrixSelection.SelectedDimensions, EventSelectionModel.GetInstance().SelectedDimensions, field);
foreach (List <Case> fact in listOfFacts)
{
if (fact != null)
{
field.EventLog.Cases.AddRange(fact);
}
}
return(true);
}
catch (TimeoutException ex)
{
ErrorHandling.ReportErrorToUser("Error: Database Timeout. " + ex.Message);
}
catch (Exception ex)
{
if (ex is NoParamsGivenException || ex is NotImplementedException || ex is ArgumentException)
{
ErrorHandling.ReportErrorToUser("Error: " + ex.Message);
}
else
{
throw;
}
}
return(false);
}
private void updateInternalEventSelectionModel(int axis, Dimension dimension, int levelDepth, int aggregatioDepth, List <DimensionContent> dimensionContent)
{
EventSelectionModel.GetInstance().Update(axis, dimension, levelDepth, aggregatioDepth, dimensionContent);
}