/// <summary>
/// Processes the specified <see cref="DicomFile"/> object.
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
/// <exception cref="TargetStudyInvalidStateException">Thrown when the target study is in invalid state and cannot be updated.</exception>
public InstancePreProcessingResult Process(DicomFile file)
{
Platform.CheckForNullReference(file, "file");
AutoReconcilerResult preProcessingResult = null;
// Update the file based on the reconciliation in the past
IList <StudyHistory> histories = FindReconcileHistories(StorageLocation, file);
if (histories != null && histories.Count > 0)
{
preProcessingResult = ApplyHistories(file, histories);
}
if (preProcessingResult != null)
{
StringBuilder log = new StringBuilder();
log.AppendLine(String.Format("AUTO-RECONCILE: {0}. SOP {1}", preProcessingResult.Action, file.MediaStorageSopInstanceUid));
foreach (UpdateItem change in preProcessingResult.Changes)
{
if (change.NewValue != null && !change.NewValue.Equals(change.OriginalValue))
{
log.AppendLine(String.Format("\tSet {0}: {1} => {2}", change.Tag, change.OriginalValue, change.NewValue));
}
}
Platform.Log(LogLevel.Info, log.ToString());
}
return(preProcessingResult);
}
private AutoReconcilerResult ApplyHistories(DicomFile file, IList <StudyHistory> histories)
{
Platform.CheckForNullReference(file, "file");
Platform.CheckForNullReference(histories, "histories");
AutoReconcilerResult preProcessingResult = null;
StudyHistory lastHistory = histories[0];
var parser = new StudyReconcileDescriptorParser();
StudyReconcileDescriptor changeLog = parser.Parse(lastHistory.ChangeDescription);
switch (changeLog.Action)
{
case StudyReconcileAction.CreateNewStudy:
case StudyReconcileAction.Merge:
if (lastHistory.DestStudyStorageKey != null)
{
preProcessingResult = MergeImage(changeLog.Action, file, lastHistory);
}
break;
case StudyReconcileAction.Discard:
preProcessingResult = new AutoReconcilerResult(StudyReconcileAction.Discard)
{
DiscardImage = true
};
break;
case StudyReconcileAction.ProcessAsIs:
if (lastHistory.DestStudyStorageKey != null)
{
preProcessingResult = ProcessImageAsIs(file, lastHistory);
}
break;
default:
throw new NotImplementedException();
}
return(preProcessingResult);
}
private AutoReconcilerResult ProcessImageAsIs(DicomFile file, StudyHistory lastHistory)
{
StudyStorage destinationStudy = StudyStorage.Load(lastHistory.DestStudyStorageKey);
StudyStorageLocation destStudy;
var preProcessingResult = new AutoReconcilerResult(StudyReconcileAction.ProcessAsIs);
//Load the destination. An exception will be thrown if any issues are encountered.
FilesystemMonitor.Instance.GetWritableStudyStorageLocation(destinationStudy.ServerPartitionKey,
destinationStudy.StudyInstanceUid, StudyRestore.True,
StudyCache.True, out destStudy);
bool belongsToAnotherStudy = !destStudy.Equals(StorageLocation);
EnsureStudyCanBeUpdated(destStudy);
if (belongsToAnotherStudy)
{
preProcessingResult.Changes = new List <UpdateItem>
{
new UpdateItem(DicomTags.StudyInstanceUid, file.DataSet[DicomTags.StudyInstanceUid].ToString(), destStudy.StudyInstanceUid)
};
file.DataSet[DicomTags.StudyInstanceUid].SetStringValue(destStudy.StudyInstanceUid);
var importContext = new SopInstanceImporterContext(
_contextID,
file.SourceApplicationEntityTitle, destStudy.ServerPartition);
var importer = new SopInstanceImporter(importContext);
DicomProcessingResult result = importer.Import(file);
if (!result.Successful)
{
throw new ApplicationException("Unable to import image to destination study");
}
}
return(preProcessingResult);
}
private AutoReconcilerResult MergeImage(StudyReconcileAction action, DicomFile file, StudyHistory lastHistory)
{
string originalSeriesUid = file.DataSet[DicomTags.SeriesInstanceUid].ToString();
string originalSopUid = file.DataSet[DicomTags.SopInstanceUid].ToString();
AutoReconcilerResult preProcessingResult = null;
UidMapper uidMapper = null;
if (lastHistory.DestStudyStorageKey != null)
{
StudyStorage destinationStudy = StudyStorage.Load(lastHistory.DestStudyStorageKey);
//Load the destination. An exception will be thrown if any issues are encountered.
StudyStorageLocation destStudy;
FilesystemMonitor.Instance.GetWritableStudyStorageLocation(destinationStudy.ServerPartitionKey,
destinationStudy.StudyInstanceUid,
StudyRestore.True, StudyCache.True,
out destStudy);
EnsureStudyCanBeUpdated(destStudy);
bool belongsToAnotherStudy = !destStudy.Equals(StorageLocation);
var commandBuilder = new ImageUpdateCommandBuilder();
IList <BaseImageLevelUpdateCommand> commands = commandBuilder.BuildCommands <StudyMatchingMap>(destStudy);
if (belongsToAnotherStudy)
{
Platform.Log(LogLevel.Info, "AUTO-RECONCILE: Move SOP {0} to Study {1}, A#: {2}, Patient {3}", originalSopUid, destStudy.StudyInstanceUid, destStudy.Study.AccessionNumber, destStudy.Study.PatientsName);
// Load the Uid Map, either from cache or from disk
if (!_uidMapCache.TryGetValue(destStudy.Key, out uidMapper))
{
var mapXml = new UidMapXml();
mapXml.Load(destStudy);
uidMapper = new UidMapper(mapXml);
_uidMapCache.Add(destStudy.Key, uidMapper);
}
try
{
commands.Add(GetUidMappingCommand(StorageLocation, destStudy, uidMapper, originalSopUid, originalSeriesUid));
}
catch (InstanceAlreadyExistsException ex)
{
Platform.Log(LogLevel.Info, "An instance already exists with the SOP Instance Uid {0}", ex.SopInstanceUid);
preProcessingResult = new AutoReconcilerResult(StudyReconcileAction.Discard)
{
DiscardImage = true
};
return(preProcessingResult);
}
}
preProcessingResult = new AutoReconcilerResult(action)
{
Changes = GetUpdateList(file, commands)
};
UpdateImage(file, commands);
// First, must update the map
if (uidMapper != null && uidMapper.Dirty)
{
UpdateUidMap(destStudy, uidMapper);
}
if (belongsToAnotherStudy)
{
var importContext = new SopInstanceImporterContext(_contextID, file.SourceApplicationEntityTitle, destStudy.ServerPartition);
var importer = new SopInstanceImporter(importContext);
DicomProcessingResult result = importer.Import(file);
if (!result.Successful)
{
throw new ApplicationException(result.ErrorMessage);
}
}
}
return(preProcessingResult);
}
