internal override async Task GetSeriesImagesImpAsync(GetSeriesImagesRequest request, CancellationToken ct)
{
var seriesByReq = new Dictionary <DicomCMoveRequest, Series>(); // filled below
var remainingImagesByReq = new Dictionary <DicomCMoveRequest, int>(); // filled below
var totalImages = request.Series.Sum(s => s.NumberOfSeriesRelatedInstances);
object progressLock = new object();
DicomCMoveRequest.ResponseDelegate handler = (req, resp) =>
{
lock (progressLock)
{
remainingImagesByReq[req] = resp.Remaining;
var remainingImages = remainingImagesByReq.Sum(kvp => kvp.Value);
var progress = (double)(totalImages - remainingImages) / totalImages;
if (progress < 0.99)
{
request.RaiseProgress((int)(progress * 100));
}
}
if (resp.Remaining == 0)
{
var series = seriesByReq[req];
series.ImagesUri = CStoreScp.GetSeriesImagesUri(series.SeriesInstanceUid);
request.RaiseSeriesDone(series);
}
};
foreach (var series in request.Series)
{
var cmove = series.CreateCMoveRequest(_settings.DicomSettings);
cmove.OnResponseReceived += handler;
seriesByReq[cmove] = series;
remainingImagesByReq[cmove] = series.NumberOfSeriesRelatedInstances;
}
var client = _settings.DicomSettings.CreateClient();
await client.AddRequestsAsync(seriesByReq.Keys);
await client.SendAsync(ct);
request.RaiseProgress(100);
}
private async Task GetImageAsync(Request[] requests, DicomSearchServiceSettings settings, CancellationToken ct, Action <Image> progress)
{
var requestsByDicom = new Dictionary <DicomCMoveRequest, Request>(); // filled below
DicomCMoveRequest.ResponseDelegate handler = (dicomReq, dicomResp) =>
{
if (ct.IsCancellationRequested || dicomResp.Status.State != DicomState.Success)
{
return;
}
var request = requestsByDicom[dicomReq];
var midImageDesc = request.ImagesDesc.OrderBy(id => id.InstanceNumber).ElementAt(request.ImagesDesc.Count() / 2);
var image = LoadImage(midImageDesc);
if (image == null)
{
return;
}
if (request.Series.Orientation == FDCSeriesOrientation.eFDC_NO_ORIENTATION &&
image.Orientation != FDCSeriesOrientation.eFDC_NO_ORIENTATION)
{
request.Series.Orientation = image.Orientation;
}
progress(image);
};
foreach (var request in requests)
{
var count = request.ImagesDesc.Count();
if (count <= 0)
{
continue;
}
var midImageDesc = request.ImagesDesc.OrderBy(id => id.InstanceNumber).ElementAt(count / 2);
var localImage = LoadImage(midImageDesc);
if (localImage != null)
{
_logger.Debug("no need to get image for series {SeriesInstanceUid}, it's on the disk", midImageDesc.SeriesInstanceUid);
if (request.Series.Orientation == FDCSeriesOrientation.eFDC_NO_ORIENTATION &&
localImage.Orientation != FDCSeriesOrientation.eFDC_NO_ORIENTATION)
{
request.Series.Orientation = localImage.Orientation;
}
progress(localImage);
continue;
}
var dicomRequest = midImageDesc.CreateCMoveRequest(settings.DicomSettings);
dicomRequest.OnResponseReceived += handler;
requestsByDicom[dicomRequest] = request;
}
if (requestsByDicom.Count == 0)
{
return;
}
_logger.Debug("Getting mid images");
var client = settings.DicomSettings.CreateClient();
await client.AddRequestsAsync(requestsByDicom.Keys);
using (var timeoutCts = CancellationTokenSource.CreateLinkedTokenSource(ct))
{
timeoutCts.CancelAfter(settings.SeriesImageSettings.GetImageTimeoutMs * requestsByDicom.Count);
await client.SendAsync(timeoutCts.Token);
}
}