public MainViewModel()
{
ReportCollection = new ObservableCollection <UrlReportViewModel>();
mUrlReportBuilder = new UrlReportBuilder();
mUrlRequestService = new UrlRequestService();
mUrlParseService = new UrlParseService();
UrlFilePath = Constants.cUrlFilePath;
}
/// <summary>
/// Запрос на отмену операции обработки
/// </summary>
public async Task CancelRequest()
{
await Task.Run(() =>
{
this.mCancellationTokenSource.Cancel();
this.mMaxReferenceCountSelectDelegateInvoker = null;
this.mUrlRequestService = null;
this.mUrlParseService = null;
this.RequestWrapper = null;
});
}
public UrlReportViewModel(
UrlRequestService urlRequestService,
UrlParseService urlParseService,
MaxReferenceCountSelectDelegate maxReferenceCountSelectDelegate)
{
mMaxReferenceCountSelectDelegateInvoker = maxReferenceCountSelectDelegate;
mUrlRequestService = urlRequestService;
mUrlParseService = urlParseService;
this.RequestWrapper = new WrapAsyncResult <int?>((source, completionSource) =>
{
mCancellationTokenSource = source;
});
}
/// <summary>
/// Получение списка url
/// </summary>
/// <param name="urlFilePath"></param>
/// <param name="urlRequestService"></param>
/// <param name="urlParseService"></param>
/// <param name="maxReferenceSelectDelegate"></param>
/// <returns></returns>
public async Task <IEnumerable <UrlReportViewModel> > GetUrlReportsAsync(
string urlFilePath,
UrlRequestService urlRequestService,
UrlParseService urlParseService,
MaxReferenceCountSelectDelegate maxReferenceSelectDelegate)
{
Func <Task <IEnumerable <string> > > getUrlsFunc = async() => await mUrlFileReadService.GetUrlsAsync(urlFilePath);
IEnumerable <string> urls = await getUrlsFunc.WithTry(Enumerable.Empty <string>, (str) => MessageBox.Show(str, "Ошибка чтения файла", MessageBoxButton.OK, MessageBoxImage.Error));
return(urls.Select(x => new UrlReportViewModel(urlRequestService, urlParseService, maxReferenceSelectDelegate)
{
Url = x
}));
}
