protected override int OnStart(StudyLoaderArgs studyLoaderArgs)
{
var serverAe = studyLoaderArgs.Server;
Platform.CheckForNullReference(serverAe, "Server");
Platform.CheckMemberIsSet(serverAe.StreamingParameters, "StreamingParameters");
_serverAe = serverAe;
EventResult result = EventResult.Success;
AuditedInstances loadedInstances = new AuditedInstances();
try
{
StudyXml studyXml = RetrieveStudyXml(studyLoaderArgs);
_instances = GetInstances(studyXml).GetEnumerator();
loadedInstances.AddInstance(studyXml.PatientId, studyXml.PatientsName, studyXml.StudyInstanceUid);
return studyXml.NumberOfStudyRelatedInstances;
}
finally
{
AuditHelper.LogOpenStudies(new string[] { _serverAe.AETitle }, loadedInstances, EventSource.CurrentUser, result);
}
}
protected override int OnStart(StudyLoaderArgs studyLoaderArgs)
{
_sops = null;
EventResult result = EventResult.Success;
var loadedInstances = new AuditedInstances();
try
{
using (var context = new DataAccessContext())
{
IStudy study = context.GetStudyBroker().GetStudy(studyLoaderArgs.StudyInstanceUid);
if (study == null)
{
result = EventResult.MajorFailure;
loadedInstances.AddInstance(studyLoaderArgs.StudyInstanceUid);
throw new NotFoundLoadStudyException(studyLoaderArgs.StudyInstanceUid);
}
loadedInstances.AddInstance(study.PatientId, study.PatientsName, study.StudyInstanceUid);
_sops = study.GetSopInstances().GetEnumerator();
return study.NumberOfStudyRelatedInstances;
}
}
finally
{
AuditHelper.LogOpenStudies(new[] { AuditHelper.LocalAETitle }, loadedInstances, EventSource.CurrentUser, result);
}
}
protected override int OnStart(StudyLoaderArgs studyLoaderArgs)
{
_sops = null;
EventResult result = EventResult.Success;
var loadedInstances = new AuditedInstances();
try
{
using (var context = new DataAccessContext())
{
if (!studyLoaderArgs.Options.IgnoreInUse)
{
var workItemStatusFilter = WorkItemStatusFilter.StatusIn(
WorkItemStatusEnum.Pending,
WorkItemStatusEnum.InProgress,
WorkItemStatusEnum.Idle,
WorkItemStatusEnum.Failed);
var updateItems = context.GetWorkItemBroker().GetWorkItems(
WorkItemConcurrency.StudyUpdate,
workItemStatusFilter,
studyLoaderArgs.StudyInstanceUid);
var deleteItems = context.GetWorkItemBroker().GetWorkItems(
WorkItemConcurrency.StudyDelete,
workItemStatusFilter,
studyLoaderArgs.StudyInstanceUid);
var updateTriggerItems = context.GetWorkItemBroker().GetWorkItems(
WorkItemConcurrency.StudyUpdateTrigger,
workItemStatusFilter,
studyLoaderArgs.StudyInstanceUid);
if (updateItems.Any() || deleteItems.Any() || updateTriggerItems.Any())
{
var message = string.Format("There are work items actively modifying the study with UID '{0}'.", studyLoaderArgs.StudyInstanceUid);
throw new InUseLoadStudyException(studyLoaderArgs.StudyInstanceUid, message);
}
}
IStudy study = context.GetStudyBroker().GetStudy(studyLoaderArgs.StudyInstanceUid);
if (study == null)
{
result = EventResult.MajorFailure;
loadedInstances.AddInstance(studyLoaderArgs.StudyInstanceUid);
throw new NotFoundLoadStudyException(studyLoaderArgs.StudyInstanceUid);
}
loadedInstances.AddInstance(study.PatientId, study.PatientsName, study.StudyInstanceUid);
_sops = study.GetSopInstances().GetEnumerator();
return study.NumberOfStudyRelatedInstances;
}
}
finally
{
AuditHelper.LogOpenStudies(new[] { AuditHelper.LocalAETitle }, loadedInstances, EventSource.CurrentUser, result);
}
}
/// <summary>
/// Starts the enumeration of images that match the specified
/// Study Instance UID.
/// </summary>
/// <param name="studyLoaderArgs"></param>
/// <returns>Number of images in study.</returns>
public int Start(StudyLoaderArgs studyLoaderArgs)
{
if (studyLoaderArgs.Server != null)
_currentServer = studyLoaderArgs.Server.ToServiceNode();
try
{
return OnStart(studyLoaderArgs);
}
catch(LoadStudyException)
{
throw;
}
catch(Exception e)
{
throw new LoadStudyException(studyLoaderArgs.StudyInstanceUid, e);
}
}
/// <summary>
/// Starts the enumeration of images that match the specified
/// Study Instance UID.
/// </summary>
/// <param name="studyLoaderArgs"></param>
/// <returns>Number of images in study.</returns>
public int Start(StudyLoaderArgs studyLoaderArgs)
{
if (studyLoaderArgs.Server != null)
{
_currentServer = studyLoaderArgs.Server.ToServiceNode();
}
try
{
return(OnStart(studyLoaderArgs));
}
catch (LoadStudyException)
{
throw;
}
catch (Exception e)
{
throw new LoadStudyException(studyLoaderArgs.StudyInstanceUid, e);
}
}
protected override int OnStart(StudyLoaderArgs studyLoaderArgs)
{
var ae = studyLoaderArgs.Server as IDicomServiceNode;
_ae = ae;
EventResult result = EventResult.Success;
AuditedInstances loadedInstances = new AuditedInstances();
try
{
ServerPartition partition = ServerPartitionMonitor.Instance.GetPartition(_ae.AETitle);
if (!partition.Enabled)
throw new OfflineLoadStudyException(studyLoaderArgs.StudyInstanceUid);
FilesystemMonitor.Instance.GetReadableStudyStorageLocation(partition.Key,
studyLoaderArgs.StudyInstanceUid,
StudyRestore.False,
StudyCache.True,
out _location);
StudyXml studyXml = _location.LoadStudyXml();
_instances = GetInstances(studyXml).GetEnumerator();
loadedInstances.AddInstance(studyXml.PatientId, studyXml.PatientsName, studyXml.StudyInstanceUid);
return studyXml.NumberOfStudyRelatedInstances;
}
catch (StudyIsNearlineException e)
{
throw new NearlineLoadStudyException(studyLoaderArgs.StudyInstanceUid, e);
}
finally
{
AuditHelper.LogOpenStudies(new[] {ae.AETitle}, loadedInstances, EventSource.CurrentUser, result);
}
}
private List<Sop> LoadSops()
{
IStudyLoader studyLoader;
try
{
studyLoader = Server.GetService<IStudyLoader>();
_studyLoaderName = studyLoader.Name;
}
catch (Exception e)
{
//For legacy reasons, so code expecting one of these exceptions will still get one.
throw new StudyLoaderNotFoundException(e);
}
var args = new StudyLoaderArgs(StudyInstanceUid, Server, _args != null ? _args.StudyLoaderCheckOptions : StudyLoaderCheckOptions.Default);
int total;
var sops = new List<Sop>();
try
{
if (LoadOnlineOnly && StudyItem != null)
{
// TODO (CR Apr 2012): try to get rid of this.
//This stinks, but we pre-emptively throw the offline/nearline exception
//to avoid trying to load a prior when we know it's not online.
switch (StudyItem.InstanceAvailability)
{
case "OFFLINE":
throw new OfflineLoadStudyException(StudyInstanceUid);
case "NEARLINE":
throw new NearlineLoadStudyException(StudyInstanceUid);
default:
break;
}
}
total = studyLoader.Start(args);
if (total <= 0)
throw new NotFoundLoadStudyException(args.StudyInstanceUid);
}
catch (LoadStudyException)
{
throw;
}
catch (Exception e)
{
throw new LoadStudyException(args.StudyInstanceUid, e);
}
try
{
while (true)
{
Sop sop = studyLoader.LoadNextSop();
if (sop == null)
break;
sops.Add(sop);
}
if (sops.Count == 0)
throw new LoadStudyException(args.StudyInstanceUid, total, total);
return sops;
}
catch (Exception e)
{
DisposeSops(sops);
throw new LoadStudyException(args.StudyInstanceUid, total, total, e);
}
}
/// <summary> /// Called by <see cref="Start"/> to begin prefetching. /// </summary> protected abstract int OnStart(StudyLoaderArgs studyLoaderArgs);
/// <summary> /// Called by <see cref="Start"/> to begin prefetching. /// </summary> protected abstract int OnStart(StudyLoaderArgs studyLoaderArgs);
private StudyXml RetrieveStudyXml(StudyLoaderArgs studyLoaderArgs)
{
var headerParams = new HeaderStreamingParameters
{
StudyInstanceUID = studyLoaderArgs.StudyInstanceUid,
ServerAETitle = _serverAe.AETitle,
ReferenceID = Guid.NewGuid().ToString()
};
HeaderStreamingServiceClient client = null;
try
{
string uri = String.Format(StreamingSettings.Default.FormatHeaderServiceUri,
_serverAe.ScpParameters.HostName, _serverAe.StreamingParameters.HeaderServicePort);
client = new HeaderStreamingServiceClient(new Uri(uri));
client.Open();
var studyXml = client.GetStudyXml(ServerDirectory.GetLocalServer().AETitle, headerParams);
client.Close();
return studyXml;
}
catch (FaultException<StudyIsInUseFault> e)
{
throw new InUseLoadStudyException(studyLoaderArgs.StudyInstanceUid, e);
}
catch (FaultException<StudyIsNearlineFault> e)
{
throw new NearlineLoadStudyException(studyLoaderArgs.StudyInstanceUid, e)
{ IsStudyBeingRestored = e.Detail.IsStudyBeingRestored };
}
catch (FaultException<StudyNotFoundFault> e)
{
throw new NotFoundLoadStudyException(studyLoaderArgs.StudyInstanceUid, e);
}
catch (FaultException e)
{
//TODO: Some versions (pre-Team) of the ImageServer
//throw a generic fault when a study is nearline, instead of the more specialized one.
string message = e.Message.ToLower();
if (message.Contains("nearline"))
throw new NearlineLoadStudyException(studyLoaderArgs.StudyInstanceUid, e)
{ IsStudyBeingRestored = true }; //assume true in legacy case.
throw new LoadStudyException(studyLoaderArgs.StudyInstanceUid, e);
}
catch (Exception e)
{
if (client != null)
client.Abort();
throw new LoadStudyException(studyLoaderArgs.StudyInstanceUid, e);
}
}
