internal override async Task GetSeriesImageImpAsync(GetSeriesImageRequest request, CancellationToken ct)
{
var createImage = new ActionBlock <Series>(async ser =>
{
var fsSeries = ser as FileSysSeriesImp;
if (fsSeries == null)
{
_logger.Warning("{service} got unexpected type of series object {@Series}", GetType(), ser);
return;
}
var image = await CreateFromSeriesDirAsync(fsSeries.SeriesDir, (dicomFile) => { return(dicomFile.CreateImage()); });
if (image != null)
{
if (ser.Orientation == FDCSeriesOrientation.eFDC_NO_ORIENTATION &&
image.Orientation != FDCSeriesOrientation.eFDC_NO_ORIENTATION)
{
ser.Orientation = image.Orientation;
}
request.RaiseImageGot(image);
}
}, new ExecutionDataflowBlockOptions {
CancellationToken = ct, MaxDegreeOfParallelism = 1
});
foreach (var ser in request.Series)
{
await createImage.SendAsync(ser, ct);
}
createImage.Complete();
await createImage.Completion;
}
public async Task LoadSeriesImages(ISearchService searchService, CancellationToken ct)
{
if (ct.IsCancellationRequested)
{
return;
}
var request = new GetSeriesImageRequest {
Series = Series.Select(s => s.Series)
};
request.ImageGot += (s, e) =>
{
if (ct.IsCancellationRequested)
{
return;
}
var series = Series.FirstOrDefault(ser => ser.SeriesInstanceUid == e.SeriesInstanceUid);
if (series == null)
{
return;
}
_dispatcher.InvokeAsync(() =>
{
series.SetImage(e);
});
};
await searchService.GetSeriesImageAsync(request, ct).ConfigureAwait(false);
}
public async Task GetSeriesImageAsync(GetSeriesImageRequest request, CancellationToken ct)
{
foreach (var series in request.Series)
{
Validator.ValidateObject(series, new ValidationContext(series), true);
}
await GetSeriesImageImpAsync(request, ct);
}
internal override async Task GetSeriesImageImpAsync(GetSeriesImageRequest request, CancellationToken ct)
{
await _getSeriesImageSemaphore.WaitAsync(ct);
try
{
if (ct.IsCancellationRequested)
{
return;
}
await DicomSeriesImageService.GetSeriesImageAsync(request, _settings, ct);
}
finally
{
_getSeriesImageSemaphore.Release();
}
}
public static async Task GetSeriesImageAsync(GetSeriesImageRequest request, DicomSearchServiceSettings settings, CancellationToken ct)
{
var service = new DicomSeriesImageService(request.RaiseImageGot, settings, ct);
await service.Go(request.Series, ct);
}
internal abstract Task GetSeriesImageImpAsync(GetSeriesImageRequest request, CancellationToken ct);
