private void Application_Startup(object sender, StartupEventArgs e)
{
FileProcessor.InitializeAvailableProcessors(Settings.SettingsManager.ProcessorsCodeDirectory);
var mainWindow = new MainWindow();
var mainWindowViewModel = new MainWindowViewModel();
mainWindow.DataContext = mainWindowViewModel;
mainWindow.Show();
}
public static void Crawl(string directoryAbsolutePath, MainWindowViewModel viewModel)
{
if(Directory.Exists(directoryAbsolutePath))
{
DirectoryInfo di = new DirectoryInfo(directoryAbsolutePath);
IEnumerable<FileInfo> allFiles = di.EnumerateFiles("*.*", SearchOption.TopDirectoryOnly);
ProcessFoundedFiles(allFiles, viewModel);
}
}
private static void ProcessFile(FileInfo fi, MainWindowViewModel viewModel)
{
IFileDataProcessor dataProcessor = FileProcessor.GetDataProcessor(fi.FullName);
if (dataProcessor != null)
{
IEnumerable<IDataItem> processedItems = dataProcessor.ProcessFile(fi.FullName);
if (alreadyProcessedData.TryAdd(fi.Name, processedItems))
{
UpdateViewModel(viewModel, fi.Name, processedItems.Count());
}
}
}
private static void ProcessFileList(IEnumerable<FileInfo> filesList, MainWindowViewModel viewModel)
{
// Get a cancellation token
ParallelOptions loopOptions = new ParallelOptions();
loopOptions.CancellationToken = viewModel.ProcessFileCancellationToken.Token;
/* If the user cancels this task while in progress, the cancellation token passed
* in will cause an OperationCanceledException to be thrown. We trap the exception
* and set the Progress dialog view model to display a cancellation message. */
// Process work items in parallel
try
{
Parallel.ForEach(filesList, loopOptions, t => ProcessFile(t, viewModel));
}
catch (OperationCanceledException)
{
//var ShowCancellationMessage = new Action(viewModel.ShowCancellationMessage);
//Application.Current.Dispatcher.Invoke(DispatcherPriority.Normal, ShowCancellationMessage);
}
}
private static void UpdateViewModel(MainWindowViewModel viewModel, string fileName, int processedItemsCount)
{
Application.Current.Dispatcher.Invoke(() =>
viewModel.UpdateFilesFoundList(fileName), DispatcherPriority.Normal);
Application.Current.Dispatcher.Invoke(() =>
viewModel.UpdateFilesCount(), DispatcherPriority.Normal);
Application.Current.Dispatcher.Invoke(() =>
viewModel.UpdateTotalProcessedItemsCount(processedItemsCount), DispatcherPriority.Normal);
}
private static void ProcessFoundedFiles(IEnumerable<FileInfo> fileList, MainWindowViewModel viewModel)
{
Task<IEnumerable<FileInfo>> getOnlyNewFiles = Task<IEnumerable<FileInfo>>.Factory.StartNew(() => GetOnlyNewFiles(fileList));
viewModel.ProcessFileCancellationToken = new System.Threading.CancellationTokenSource();
var processFilesList = getOnlyNewFiles.ContinueWith((t) => ProcessFileList(t.Result, viewModel));
}
public ScheduleSourceFolderScan(MainWindowViewModel viewModel)
{
this.viewModel = viewModel;
}