public async Task <Priority> CheckAndDelayOnWaitConditions(RoutedItem ri)
{
RoutedItemEx routedItem = (RoutedItemEx)ri;
var taskInfo = $"task: {routedItem.TaskID}";
/*
* check and delay on wait conditions
* DICOM TAG (0000,0700)
* LOW = 0002H
* MEDIUM = 0000H
* HIGH = 0001H
*/
//Engage: Waits get engaged when DICOM Priority Tag detected, and get disengaged when done
ushort priority = 3;
try
{
if (routedItem.sourceDicomFile != null)
{
DicomDataset dataSet = routedItem.sourceDicomFile.Dataset;
string uuid = null;
try
{
if (dataSet.Contains(DicomTag.StudyInstanceUID))
{
uuid = dataSet.GetValue <string>(DicomTag.StudyInstanceUID, 0);
}
}
catch (DicomDataException e)
{
_logger.Log(LogLevel.Debug, $"{taskInfo} {uuid} has no StudyInstanceUID field. {e.Message} {e.StackTrace}");
}
Profile currentProfile = _profileStorage.Current;
try
{
if (dataSet.Contains(DicomTag.Priority))
{
priority = dataSet.GetValue <ushort>(DicomTag.Priority, 0);
}
else
{
_logger.Log(LogLevel.Debug, $"{taskInfo} {uuid} has no priority field.");
}
}
catch (DicomDataException e)
{
_logger.Log(LogLevel.Debug, $"{taskInfo} {uuid} has no priority field. {e.Message} {e.StackTrace}");
}
if (priority < 3)
{
_logger.Log(LogLevel.Information, $"{taskInfo} {uuid} has priority {priority}.");
if (priority.Equals(0x01))
{
currentProfile.highWait = true;
_logger.Log(LogLevel.Information, $"{taskInfo} {uuid} with high priority detected. Setting highWait flag.");
}
if (priority.Equals(0x00))
{
currentProfile.mediumWait = true;
_logger.Log(LogLevel.Information, $"{taskInfo} {uuid} with medium priority detected. Setting highWait flag.");
}
}
//Wait on Condition:
if (currentProfile.highWait || currentProfile.mediumWait)
{ //something important is in mid transfer so check and wait if med or low
if (priority < 3 || priority.Equals(0x02))
{
//low or no priority is subject to both highWait and mediumWait conditions
if (currentProfile.highWait && !priority.Equals(0x01))
{
_logger.Log(LogLevel.Information, $"{taskInfo} highWait causing {currentProfile.highWaitDelay}ms delay for DICOM {uuid} in thread:{System.Threading.Thread.CurrentThread}.");
await Task.Delay(currentProfile.highWaitDelay, _taskManager.cts.Token).ConfigureAwait(false);
}
if (currentProfile.mediumWait && !priority.Equals(0x00) && !priority.Equals(0x01))
{
_logger.Log(LogLevel.Information, $"{taskInfo} mediumWait causing {currentProfile.mediumWaitDelay}ms delay for DICOM {uuid} in thread:{System.Threading.Thread.CurrentThread}.");
await Task.Delay(currentProfile.mediumWaitDelay, _taskManager.cts.Token).ConfigureAwait(false);
}
}
else if (priority.Equals(0x00))
{
//medium priority is subject to only highWait conditions
if (currentProfile.highWait)
{
_logger.Log(LogLevel.Information, $"{taskInfo} highWait causing {currentProfile.highWaitDelay}ms delay for DICOM {uuid} in thread:{System.Threading.Thread.CurrentThread}.");
await Task.Delay(currentProfile.highWaitDelay, _taskManager.cts.Token).ConfigureAwait(false);
}
}
}
}
}
catch (TaskCanceledException)
{
_logger.Log(LogLevel.Information, $"Task was canceled.");
}
catch (Exception e)
{
_logger.LogFullException(e);
}
return(_util.GetPriority(priority));
}
/// Responds to a cstore request, which kicks off a StreamToRules task
public DicomCStoreResponse OnCStoreRequest(DicomCStoreRequest request)
{
var taskID = _taskManager.NewTaskID();
var taskInfo =
$"task: {taskID} messageID: {request.MessageID} connection: {((DICOMConnection)(base.UserState)).name}";
try
{
var fromConnection = _connectionFinder.GetDicomConnectionToLocalAETitle(_profileStorage.Current, Association.CalledAE);
if (fromConnection == null)
{
//We have an inbound Association.CalledAE that we aren't configured for
logger.Log(LogLevel.Warning, $"{taskInfo} There is no connection defined where the LocalAETitle matches the Association.CalledAE: {Association.CalledAE}");
return(new DicomCStoreResponse(request, DicomStatus.ProcessingFailure));
}
logger.Log(LogLevel.Information, $"{taskInfo} CStoreRequest from {fromConnection.name}");
var conn = ((DICOMConnection)(base.UserState));
// var dir = profile.tempPath + Path.DirectorySeparatorChar + ((DICOMConnection)(base.UserState)).name + Path.DirectorySeparatorChar + "toRules";
// Directory.CreateDirectory(dir);
// var filename = dir + Path.DirectorySeparatorChar + System.Guid.NewGuid();
// LifeImageLite.Logger.logger.Log(TraceEventType.Verbose, $"{taskInfo} Moving from {request.File.File.Name} to {filename}");
// request.File.File.Move(dstFileName: filename);
RoutedItem routedItem = new RoutedItem(
fromConnection: fromConnection.name,
sourceFileName: request.File.File.Name,
taskID: taskID)
{
type = RoutedItem.Type.DICOM
};
request.Dataset.TryGetValue <string>(DicomTag.PatientID, 0, out routedItem.PatientID);
request.Dataset.TryGetValue <string>(DicomTag.AccessionNumber, 0, out routedItem.AccessionNumber);
request.Dataset.TryGetValue <string>(DicomTag.StudyInstanceUID, 0, out routedItem.Study);
request.Dataset.TryGetValue <string>(DicomTag.StudyID, 0, out routedItem.StudyID);
foreach (var item in request.Command)
{
logger.Log(LogLevel.Debug, $"Command tag: {item.Tag} value: {item.ValueRepresentation}");
}
routedItem.id =
$"PID:{routedItem.PatientID}, AN:{routedItem.AccessionNumber}"; // , UID:{routedItem.Study}";
//profile.rules.SendToRules(routedItem).Wait();
routedItem.priority = _util.GetPriority((ushort)request.Priority);
_routedItemManager.Init(routedItem);
_routedItemManager.Enqueue(conn, conn.toRules, nameof(conn.toRules), copy: true);
DicomStatus status = DicomStatus.Success;
DicomCStoreResponse response = new DicomCStoreResponse(request, status)
{
//Dataset = request.Dataset
};
response.Command.AddOrUpdate(DicomTag.AffectedSOPInstanceUID,
request.Dataset.GetValue <string>(DicomTag.SOPInstanceUID, 0));
response.Command.AddOrUpdate(DicomTag.AffectedSOPClassUID,
request.Dataset.GetValue <string>(DicomTag.SOPClassUID, 0));
return(response);
}
catch (Exception e)
{
logger.Log(LogLevel.Critical, $"{taskInfo} {e.Message} {e.StackTrace}");
if (e.InnerException != null)
{
logger.Log(LogLevel.Critical, $"Inner Exception: {e.InnerException}");
}
request.Dataset.AddOrUpdate(DicomTag.AffectedSOPInstanceUID,
request.Dataset.GetValue <string>(DicomTag.SOPInstanceUID, 0));
return(new DicomCStoreResponse(request,
new DicomStatus(DicomStatus.ProcessingFailure,
$"CStore Response Exception: {e.Message} {e.StackTrace}"))); //out of resources not much flexibility here
}
finally
{
}
}
