/// <summary>
/// queues the request to update the MPR
/// </summary>
void QueueRequest()
{
if (_ivdc == null)
{
return;
}
MprGenerationRequestV1 request =
new MprGenerationRequestV1();
request.RequestTime = DateTime.Now;
request.ImageVolumeId = _ivdc.Identity.Guid;
request.SlicePosition = this.SlicePosition;
request.Orientation = this.Orientation;
request.WindowCenter = this.WindowCenter;
request.WindowWidth = this.WindowWidth;
if (_mges == null ||
_mges.State != CommunicationState.Opened)
{
_mges = new MprGenerationEngineServiceClient();
}
OperationContextScope contextScope = new OperationContextScope(_mges.InnerChannel);
{
Guid methodId = Guid.NewGuid();
this._queueWaiting.TryAdd(methodId, request);
ImageRenderManagerHelper.SetupResponseHeader(methodId);
_mges.GenerateMpr(request);
}
// TODO: determine when to close
// _mges.Close();
}
public void GenerateMpr(MprGenerationRequestV1 request)
{
var responseContext =
OperationContext.Current.IncomingMessageHeaders.GetHeader <ResponseContext>(
"ResponseContext", "ServiceModelEx");
System.Diagnostics.Trace.Assert(responseContext.MethodId.CompareTo(Guid.Empty.ToString()) != 0);
LocalImageResourceManagerClient lirm =
new LocalImageResourceManagerClient();
lirm.Open();
UniformImageVolumeDataContract ivdc = null;
ivdc = lirm.GetImageVolume(request.ImageVolumeId);
int[] size = CalculateSize(ivdc, request.Orientation);
ImageDataContract idc = null;
_cacheResultImages.TryGetValue(responseContext.MethodId, out idc);
if (idc == null ||
idc.Width != size[0] ||
idc.Height != size[1])
{
idc = new ImageDataContract();
idc.Width = size[0];
idc.Height = size[1];
idc = lirm.AddImage(idc);
_cacheResultImages.TryAdd(responseContext.MethodId, idc);
}
lirm.Close();
UpdatePixelsFromVolumeResampled(ivdc,
request.Orientation, request.SlicePosition,
request.WindowCenter, request.WindowWidth,
idc);
MessageHeader <ResponseContext> responseHeader = new MessageHeader <ResponseContext>(responseContext);
NetMsmqBinding binding = new NetMsmqBinding("NoMsmqSecurity");
MprGenerationResponseProxy proxy = new MprGenerationResponseProxy(binding,
new EndpointAddress(responseContext.ResponseAddress));
using (OperationContextScope scope = new OperationContextScope(proxy.InnerChannel))
{
OperationContext.Current.OutgoingMessageHeaders.Add(
responseHeader.GetUntypedHeader("ResponseContext", "ServiceModelEx"));
proxy.OnMprDone(idc, request.RequestTime);
}
proxy.Close();
}
