public static Task ResetDownloadedInfo()
{
void clearBag <T>(ConcurrentBag <T> bag)
{
//Though not atomic, ResetHash() is called by only one thread.
while (!bag.IsEmpty)
{
bag.TryTake(out var item);
}
};
clearBag(jsonHashs);
clearBag(imageDatas);
DownloadedCount = 0;
return(Task.Run(() =>
{
foreach (var file in new DirectoryInfo(Settings.DownloadPath).EnumerateFiles())
{
var data = ImageProcesser.ExtractPixelData(ImageProcesser.LoadFromFile(file.FullName));
imageDatas.Add(data);
if (file.Name.Contains("2018-02-17-bs-ba"))
{
testData = data;
}
}
}));
}
public Task Download()
{
return(Task.Run(() =>
{
if (!IsInfoDownloaded)
{
return;
}
if (IsDownloaded || IsDownloading)
{
return;
}
try
{
using (var client = getWebClient())
{
IsDownloading = true;
if (!jsonHashs.Contains(Info.Hash))
{
var rawData = client.DownloadDataAsTask(Info.DownloadUrl, tokenSource.Token).Result;
rawData = ImageProcesser.AddMetadata(rawData, Info);
var pixelData = ImageProcesser.ExtractPixelData(rawData);
Debug.WriteLine($"Data fetched: {Info.LocaleName}-{rawData.GetHashCode()}");
if (!imageDatas.Contains(pixelData) && !containsData(pixelData))
{
imageDatas.Add(pixelData);
jsonHashs.Add(Info.Hash);
ImageProcesser.SaveToFile(rawData, Info);
Debug.WriteLine($"Downloaded: {Info.LocaleName}");
DownloadedCount++;
}
}
}
}
catch (AggregateException ex)
when(ex.InnerException is WebException)
{
return;
}
catch (Exception ex)
when(ex is OperationCanceledException || ex is TaskCanceledException)
{
return;
}
#if !DEBUG
catch (Exception)
{
return;
}
#endif
finally
{
IsDownloading = false;
//DownloadSpeed.Reset();
}
}));
}
