public async Task DownloadAndSave(DownloadParameters parameters, CancellationToken cancellationToken, Action<int, bool> progressCallback, Action downloadFailed)
{
try
{
int bufferSize = 4096;//Same size as a page size, seems a good size?!?
using (HttpClient client = new HttpClient())
{
var request = await client.GetAsync(parameters.EndpointUrl, cancellationToken);
if (request.IsSuccessStatusCode)
{
using (FileStream fs = parameters.FileName.OpenWrite())
using (var q = await request.Content.ReadAsStreamAsync())
{
await q.CopyToAsync(fs, bufferSize, cancellationToken);
}
_dispatcher.Invoke(progressCallback, 100, true);
}
_dispatcher.Invoke(downloadFailed);
}
}
catch (Exception)
{
_dispatcher.Invoke(downloadFailed);
}
}
//public DownloadingUserControl()
//{
// _downloader = new DownloadFromEndpointProvider(Dispatcher);
// InitializeComponent();
// _downloadParameters = (DownloadParameters)DataContext;
// StartDownload();
//}
public DownloadingUserControl(DownloadParameters downloadParameters)
{
_downloader = new DownloadFromEndpointProvider(this.Dispatcher);
_downloadParameters = downloadParameters;
InitializeComponent();
StartDownload(downloadParameters);
}
public MainWindow()
{
InitializeComponent();
var datacontext = new DownloadParameters
{
SaveLocation = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
EndPoint = "http://musicbrainz.org/ws/2/artist/5b11f4ce-a62d-471e-81fc-a69a8278c7da?inc=aliases&fmt=json",
StartDate = DateTime.Today.AddDays(-1),
EndDate = DateTime.Today
};
DataContext = datacontext;
HomePage initalPage = new HomePage();
this.Content = initalPage;
}
private void StartDownload(DownloadParameters downloadParameters)
{
Task.Run(() => _downloader.DownloadAndSave(_downloadParameters, _cancellationTokenSource.Token, Progress, DownloadFailed));
}