/// <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>
/// Set the calculation controls while threading
/// </summary>
private void SetCalculationControlsInThread()
{
Dispatcher.BeginInvoke((Action)(() =>
{
MiningInfo.BBCode += "\nMining completed!";
MiningInfoScrollViewer.ScrollToEnd();
StartCalculationButton.Content = "Continue";
StartCalculationButton.Click -= StartCalculationClick;
StartCalculationButton.Click += ContinueClick;
StartCalculationButton.IsEnabled = true;
CancelCalculationButton.IsEnabled = false;
ProgressBar.Visibility = Visibility.Hidden;
Cursor = Cursors.Arrow;
}));
}
/// <summary>
/// Initialize the Mining (set controls etc.)
/// </summary>
private void InitializeCalculation()
{
Cursor = Cursors.Wait;
ProgressBar.Visibility = Visibility.Visible;
_cancellationTokenSource = new CancellationTokenSource();
_cancellationToken = _cancellationTokenSource.Token;
_parallelOption = new ParallelOptions();
_parallelOption.CancellationToken = _cancellationTokenSource.Token;
_parallelOption.MaxDegreeOfParallelism = System.Environment.ProcessorCount;
_isMinerRunning = true;
StartCalculationButton.IsEnabled = false;
CancelCalculationButton.IsEnabled = true;
MiningInfo.BBCode += "\nStart mining...";
MiningInfoScrollViewer.ScrollToEnd();
}
/// <summary>
/// Start the miner on a list of fields and save the results in a dictionary
/// </summary>
/// <param name="fields"></param>
/// <author>Bernhard Bruns</author>
public void Mine(List <Field> fields)
{
int fieldCounter = 1;
Parallel.ForEach(fields, field =>
{
try
{
field.ResetInformation();
IMiner iMiner = MinerFactory.CreateMiner(MinerSettings.MinerName, field);
ProcessModel resultingProcessModel = iMiner.Mine();
// Save petrinet in the field object
field.ProcessModel = resultingProcessModel;
Dispatcher.BeginInvoke((Action)(() => { MiningInfo.BBCode += "\n[b]Mining field " + fieldCounter++ + " of " + fields.Count + "[/b]" + "\n[color=#00E600]Successfully mined.[/color]"; MiningInfoScrollViewer.ScrollToEnd(); })).Wait();
}
catch (ArgumentNullException Ex)
{
Dispatcher.BeginInvoke((Action)(() =>
{
MiningInfo.BBCode += "\n[b]Mining field " + fieldCounter++ + " of " + fields.Count + "[/b]" + "\nERROR: Parameter " + Ex.ParamName + " was not given:\n" + Ex.Message; MiningInfoScrollViewer.ScrollToEnd();
})).Wait();
}
catch (Exception Ex)
{
Dispatcher.BeginInvoke((Action)(() =>
{
MiningInfo.BBCode += "\n[b]Mining field " + fieldCounter++ + " of " + fields.Count + "[/b]" + "\n[color=#FF0000]ERROR: [/color]" + Ex.Message; MiningInfoScrollViewer.ScrollToEnd();
})).Wait();
}
finally
{
Dispatcher.BeginInvoke((Action)(() =>
{
ProgressBar.Value += 1;
})).Wait();
_parallelOption.CancellationToken.ThrowIfCancellationRequested();
}
});
}
