private ProcessDuplicateResult OverwriteDuplicate(DicomFile dupFile, WorkQueueUid uid, StudyXml studyXml)
{
Platform.Log(LogLevel.Info, "Overwriting duplicate SOP {0}", uid.SopInstanceUid);
var result = new ProcessDuplicateResult();
result.ActionTaken = DuplicateProcessResultAction.Accept;
using (var processor = new ServerCommandProcessor("Overwrite duplicate instance"))
{
var destination = Context.StorageLocation.GetSopInstancePath(uid.SeriesInstanceUid, uid.SopInstanceUid);
processor.AddCommand(new RenameFileCommand(dupFile.Filename, destination, false));
// Ideally we don't need to insert the instance into the database since it's a duplicate.
// However, we need to do so to ensure the Study record is recreated if we are dealing with an orphan study.
// For other cases, this will cause the instance count in the DB to be out of sync with the filesystem.
// But it will be corrected at the end of the processing when the study verification is executed.
processor.AddCommand(new InsertInstanceCommand(dupFile, Context.StorageLocation));
// Update the StudyStream object
processor.AddCommand(new InsertStudyXmlCommand(dupFile, studyXml, Context.StorageLocation));
processor.AddCommand(new DeleteWorkQueueUidCommand(uid));
if (!processor.Execute())
{
// cause the item to fail
throw new Exception(string.Format("Error occurred when trying to overwrite duplicate in the filesystem."), processor.FailureException);
}
}
return(result);
}
private ProcessDuplicateResult ProcessDuplicateReport(DicomFile dupFile, DicomFile baseFile, WorkQueueUid uid, StudyXml studyXml)
{
var result = new ProcessDuplicateResult();
DateTime?dupTime = DateTimeParser.ParseDateAndTime(dupFile.DataSet, 0, DicomTags.InstanceCreationDate,
DicomTags.InstanceCreationTime);
DateTime?baseTime = DateTimeParser.ParseDateAndTime(baseFile.DataSet, 0, DicomTags.InstanceCreationDate,
DicomTags.InstanceCreationTime);
if (dupTime.HasValue && baseTime.HasValue)
{
if (dupTime.Value <= baseTime.Value)
{
RemoveWorkQueueUid(uid, dupFile.Filename);
result.ActionTaken = DuplicateProcessResultAction.Delete;
return(result);
}
}
result.ActionTaken = DuplicateProcessResultAction.Accept;
SaveDuplicateReport(uid, dupFile.Filename, baseFile.Filename, dupFile, studyXml);
return(result);
}
/// <summary>
/// Overwrites existing copy with the received duplicate. Update the database, study xml and applies any SOP rules.
/// </summary>
/// <param name="dupFile"></param>
/// <param name="uid"></param>
/// <param name="studyXml"></param>
/// <returns></returns>
private ProcessDuplicateResult OverwriteAndUpdateDuplicate(DicomFile dupFile, WorkQueueUid uid, StudyXml studyXml)
{
Platform.Log(LogLevel.Info, "Overwriting duplicate SOP {0}", uid.SopInstanceUid);
var result = new ProcessDuplicateResult();
result.ActionTaken = DuplicateProcessResultAction.Accept;
using (var processor = new ServerCommandProcessor("Overwrite duplicate instance"))
{
var sopContext = new ServerActionContext(dupFile, Context.StorageLocation.FilesystemKey, Context.StorageLocation.ServerPartition, Context.StorageLocation.Key, processor);
var destination = Context.StorageLocation.GetSopInstancePath(uid.SeriesInstanceUid, uid.SopInstanceUid);
processor.AddCommand(new RenameFileCommand(dupFile.Filename, destination, false));
// Do so that the FileSize calculation inInsertStudyXmlCommand works
dupFile.Filename = destination;
// Update the StudyStream object
var insertStudyXmlCommand = new InsertStudyXmlCommand(dupFile, studyXml, Context.StorageLocation);
processor.AddCommand(insertStudyXmlCommand);
// Ideally we don't need to insert the instance into the database since it's a duplicate.
// However, we need to do so to ensure the Study record is recreated if we are dealing with an orphan study.
// For other cases, this will cause the instance count in the DB to be out of sync with the filesystem.
// But it will be corrected at the end of the processing when the study verification is executed.
processor.AddCommand(new UpdateInstanceCommand(Context.StorageLocation.ServerPartition, Context.StorageLocation, dupFile));
processor.AddCommand(new DeleteWorkQueueUidCommand(uid));
processor.AddCommand(new ApplySopRulesCommand(sopContext, Context.SopProcessedRulesEngine));
if (!processor.Execute())
{
EventManager.FireEvent(this, new FailedUpdateSopEventArgs {
File = dupFile, ServerPartitionEntry = Context.StorageLocation.ServerPartition, WorkQueueUidEntry = uid, WorkQueueEntry = WorkQueueItem, FileLength = (ulong)insertStudyXmlCommand.FileSize, FailureMessage = processor.FailureReason
});
// cause the item to fail
throw new Exception(string.Format("Error occurred when trying to overwrite duplicate in the filesystem."), processor.FailureException);
}
EventManager.FireEvent(this, new UpdateSopEventArgs {
File = dupFile, ServerPartitionEntry = Context.StorageLocation.ServerPartition, WorkQueueUidEntry = uid, WorkQueueEntry = WorkQueueItem, FileLength = (ulong)insertStudyXmlCommand.FileSize
});
}
return(result);
}
private ProcessDuplicateResult ProcessDuplicate(DicomFile dupFile, WorkQueueUid uid, StudyXml studyXml)
{
var result = new ProcessDuplicateResult();
var data = uid.SerializeWorkQueueUidData;
var basePath = StorageLocation.GetSopInstancePath(uid.SeriesInstanceUid, uid.SopInstanceUid);
if (!File.Exists(basePath))
{
// NOTE: This is special case. The file which caused dicom service to think this sop is a duplicate
// no longer exists in the study folder. Perhaps it has been moved to another folder during auto reconciliation.
// We have nothing to compare against so let's just throw it into the SIQ queue.
CreateDuplicateSIQEntry(uid, dupFile, null);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
}
else
{
var duplicateEnum = data.DuplicateProcessing.HasValue ? data.DuplicateProcessing.Value : DuplicateProcessingEnum.Compare;
switch (duplicateEnum)
{
case DuplicateProcessingEnum.OverwriteSop:
// Note: There's actually no difference between OverwriteDuplicate and OverwriteAndUpdateDuplicate. But decided to leave it as is.
return(OverwriteDuplicate(dupFile, uid, studyXml));
case DuplicateProcessingEnum.OverwriteSopAndUpdateDatabase:
return(OverwriteAndUpdateDuplicate(dupFile, uid, studyXml));
case DuplicateProcessingEnum.OverwriteReport:
var file = new DicomFile(basePath);
return(ProcessDuplicateReport(dupFile, file, uid, studyXml));
case DuplicateProcessingEnum.Compare:
var baseFile = new DicomFile(basePath);
return(CompareDuplicates(dupFile, baseFile, uid));
default:
throw new InvalidOperationException("");
}
}
return(result);
}
private ProcessDuplicateResult ProcessDuplicate(DicomFile dupFile, WorkQueueUid uid, StudyXml studyXml)
{
var result = new ProcessDuplicateResult();
var data = uid.SerializeWorkQueueUidData;
string duplicateSopPath = ServerHelper.GetDuplicateUidPath(StorageLocation, uid);
string basePath = StorageLocation.GetSopInstancePath(uid.SeriesInstanceUid, uid.SopInstanceUid);
if (!File.Exists(basePath))
{
// NOTE: This is special case. The file which caused dicom service to think this sop is a duplicate
// no longer exists in the study folder. Perhaps it has been moved to another folder during auto reconciliation.
// We have nothing to compare against so let's just throw it into the SIQ queue.
CreateDuplicateSIQEntry(uid, dupFile, null);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
}
else
{
var duplicateEnum = data.DuplicateProcessing.HasValue ? data.DuplicateProcessing.Value : DuplicateProcessingEnum.Compare;
// Check if system is configured to override the rule for this study
if (duplicateEnum == DuplicateProcessingEnum.OverwriteSop)
{
return OverwriteDuplicate(dupFile, uid, studyXml);
}
// Check if system is configured to override the rule for this study
if (duplicateEnum == DuplicateProcessingEnum.OverwriteSopAndUpdateDatabase)
{
return OverwriteAndUpdateDuplicate(dupFile, uid, studyXml);
}
var baseFile = new DicomFile(basePath);
baseFile.Load();
if (duplicateEnum == DuplicateProcessingEnum.OverwriteReport)
{
return ProcessDuplicateReport(dupFile, baseFile, uid, studyXml);
}
// DuplicateProcessingEnum.Compare
if (!dupFile.TransferSyntax.Equals(baseFile.TransferSyntax))
{
// If they're compressed, and we have a codec, lets decompress and still do the comparison
if (dupFile.TransferSyntax.Encapsulated
&& !dupFile.TransferSyntax.LossyCompressed
&& DicomCodecRegistry.GetCodec(dupFile.TransferSyntax) != null)
{
dupFile.ChangeTransferSyntax(TransferSyntax.ExplicitVrLittleEndian);
}
if (baseFile.TransferSyntax.Encapsulated
&& !baseFile.TransferSyntax.LossyCompressed
&& DicomCodecRegistry.GetCodec(baseFile.TransferSyntax) != null)
{
baseFile.ChangeTransferSyntax(TransferSyntax.ExplicitVrLittleEndian);
}
if (dupFile.TransferSyntax.Encapsulated || baseFile.TransferSyntax.Encapsulated)
{
string failure = String.Format("Base file transfer syntax is '{0}' while duplicate file has '{1}'",
baseFile.TransferSyntax, dupFile.TransferSyntax);
var list = new List<DicomAttributeComparisonResult>();
var compareResult = new DicomAttributeComparisonResult
{
ResultType = ComparisonResultType.DifferentValues,
TagName = DicomTagDictionary.GetDicomTag(DicomTags.TransferSyntaxUid).Name,
Details = failure
};
list.Add(compareResult);
CreateDuplicateSIQEntry(uid, dupFile, list);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
return result;
}
}
var failureReason = new List<DicomAttributeComparisonResult>();
if (baseFile.DataSet.Equals(dupFile.DataSet, ref failureReason))
{
Platform.Log(LogLevel.Info,
"Duplicate SOP being processed is identical. Removing SOP: {0}",
baseFile.MediaStorageSopInstanceUid);
RemoveWorkQueueUid(uid, duplicateSopPath);
result.ActionTaken = DuplicateProcessResultAction.Delete;
}
else
{
CreateDuplicateSIQEntry(uid, dupFile, failureReason);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
}
}
return result;
}
private ProcessDuplicateResult OverwriteAndUpdateDuplicate(DicomFile dupFile, WorkQueueUid uid, StudyXml studyXml)
{
Platform.Log(LogLevel.Info, "Overwriting duplicate SOP {0}", uid.SopInstanceUid);
var result = new ProcessDuplicateResult();
result.ActionTaken = DuplicateProcessResultAction.Accept;
using (var processor = new ServerCommandProcessor("Overwrite duplicate instance"))
{
var destination = Context.StorageLocation.GetSopInstancePath(uid.SeriesInstanceUid, uid.SopInstanceUid);
processor.AddCommand(new RenameFileCommand(dupFile.Filename, destination, false));
// Do so that the FileSize calculation inInsertStudyXmlCommand works
dupFile.Filename = destination;
// Update the StudyStream object
var insertStudyXmlCommand = new InsertStudyXmlCommand(dupFile, studyXml, Context.StorageLocation);
processor.AddCommand(insertStudyXmlCommand);
// Ideally we don't need to insert the instance into the database since it's a duplicate.
// However, we need to do so to ensure the Study record is recreated if we are dealing with an orphan study.
// For other cases, this will cause the instance count in the DB to be out of sync with the filesystem.
// But it will be corrected at the end of the processing when the study verification is executed.
processor.AddCommand(new UpdateInstanceCommand(Context.StorageLocation.ServerPartition,Context.StorageLocation,dupFile));
processor.AddCommand(new DeleteWorkQueueUidCommand(uid));
if (!processor.Execute())
{
EventManager.FireEvent(this, new FailedUpdateSopEventArgs { File = dupFile, ServerPartitionEntry = Context.StorageLocation.ServerPartition, WorkQueueUidEntry = uid, WorkQueueEntry = WorkQueueItem, FileLength = (ulong)insertStudyXmlCommand.FileSize, FailureMessage = processor.FailureReason });
// cause the item to fail
throw new Exception(string.Format("Error occurred when trying to overwrite duplicate in the filesystem."), processor.FailureException);
}
EventManager.FireEvent(this, new UpdateSopEventArgs { File = dupFile, ServerPartitionEntry = Context.StorageLocation.ServerPartition, WorkQueueUidEntry = uid, WorkQueueEntry = WorkQueueItem, FileLength = (ulong)insertStudyXmlCommand.FileSize });
}
return result;
}
private ProcessDuplicateResult ProcessDuplicateReport(DicomFile dupFile, DicomFile baseFile, WorkQueueUid uid, StudyXml studyXml)
{
var result = new ProcessDuplicateResult();
DateTime? dupTime = DateTimeParser.ParseDateAndTime(dupFile.DataSet, 0, DicomTags.InstanceCreationDate,
DicomTags.InstanceCreationTime);
DateTime? baseTime = DateTimeParser.ParseDateAndTime(baseFile.DataSet, 0, DicomTags.InstanceCreationDate,
DicomTags.InstanceCreationTime);
if (dupTime.HasValue && baseTime.HasValue)
{
if (dupTime.Value <= baseTime.Value)
{
RemoveWorkQueueUid(uid, dupFile.Filename);
result.ActionTaken = DuplicateProcessResultAction.Delete;
return result;
}
}
result.ActionTaken = DuplicateProcessResultAction.Accept;
SaveDuplicateReport(uid, dupFile.Filename, baseFile.Filename, dupFile, studyXml);
return result;
}
private ProcessDuplicateResult ProcessDuplicate(DicomFile dupFile, WorkQueueUid uid, StudyXml studyXml)
{
var result = new ProcessDuplicateResult();
string duplicateSopPath = ServerPlatform.GetDuplicateUidPath(StorageLocation, uid);
string basePath = StorageLocation.GetSopInstancePath(uid.SeriesInstanceUid, uid.SopInstanceUid);
if (!File.Exists(basePath))
{
// NOTE: This is special case. The file which caused dicom service to think this sop is a duplicate
// no longer exists in the study folder. Perhaps it has been moved to another folder during auto reconciliation.
// We have nothing to compare against so let's just throw it into the SIQ queue.
CreateDuplicateSIQEntry(uid, dupFile, null);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
}
else
{
// Check if system is configured to override the rule for this study
if (DuplicatePolicy.IsParitionDuplicatePolicyOverridden(this.StorageLocation))
{
return(OverwriteDuplicate(dupFile, uid, studyXml));
}
else
{
var baseFile = new DicomFile(basePath);
baseFile.Load();
if (DuplicateSopProcessorHelper.SopClassIsReport(dupFile.SopClass.Uid) && ServerPartition.AcceptLatestReport)
{
return(ProcessDuplicateReport(dupFile, baseFile, uid, studyXml));
}
if (!dupFile.TransferSyntax.Equals(baseFile.TransferSyntax))
{
// If they're compressed, and we have a codec, lets decompress and still do the comparison
if (dupFile.TransferSyntax.Encapsulated &&
!dupFile.TransferSyntax.LossyCompressed &&
DicomCodecRegistry.GetCodec(dupFile.TransferSyntax) != null)
{
dupFile.ChangeTransferSyntax(TransferSyntax.ExplicitVrLittleEndian);
}
if (baseFile.TransferSyntax.Encapsulated &&
!baseFile.TransferSyntax.LossyCompressed &&
DicomCodecRegistry.GetCodec(baseFile.TransferSyntax) != null)
{
baseFile.ChangeTransferSyntax(TransferSyntax.ExplicitVrLittleEndian);
}
if (dupFile.TransferSyntax.Encapsulated || baseFile.TransferSyntax.Encapsulated)
{
string failure = String.Format("Base file transfer syntax is '{0}' while duplicate file has '{1}'",
baseFile.TransferSyntax, dupFile.TransferSyntax);
var list = new List <DicomAttributeComparisonResult>();
var compareResult = new DicomAttributeComparisonResult
{
ResultType = ComparisonResultType.DifferentValues,
TagName = DicomTagDictionary.GetDicomTag(DicomTags.TransferSyntaxUid).Name,
Details = failure
};
list.Add(compareResult);
CreateDuplicateSIQEntry(uid, dupFile, list);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
return(result);
}
}
var failureReason = new List <DicomAttributeComparisonResult>();
if (baseFile.DataSet.Equals(dupFile.DataSet, ref failureReason))
{
Platform.Log(LogLevel.Info,
"Duplicate SOP being processed is identical. Removing SOP: {0}",
baseFile.MediaStorageSopInstanceUid);
RemoveWorkQueueUid(uid, duplicateSopPath);
result.ActionTaken = DuplicateProcessResultAction.Delete;
}
else
{
CreateDuplicateSIQEntry(uid, dupFile, failureReason);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
}
}
}
return(result);
}
/// <summary>
/// Compares received duplicate with the existing copy in the filesystem and throw it into the SIQ if they differ.
/// Otherwise, simply delete the duplicate and keep everything as it.
/// </summary>
/// <param name="dupFile"></param>
/// <param name="baseFile"></param>
/// <param name="uid"></param>
/// <returns></returns>
private ProcessDuplicateResult CompareDuplicates(DicomFile dupFile, DicomFile baseFile, WorkQueueUid uid)
{
var result = new ProcessDuplicateResult();
string duplicateSopPath = ServerHelper.GetDuplicateUidPath(StorageLocation, uid);
if (!dupFile.TransferSyntax.Equals(baseFile.TransferSyntax))
{
// If they're compressed, and we have a codec, lets decompress and still do the comparison
if (dupFile.TransferSyntax.Encapsulated &&
!dupFile.TransferSyntax.LossyCompressed &&
DicomCodecRegistry.GetCodec(dupFile.TransferSyntax) != null)
{
dupFile.ChangeTransferSyntax(TransferSyntax.ExplicitVrLittleEndian);
}
if (baseFile.TransferSyntax.Encapsulated &&
!baseFile.TransferSyntax.LossyCompressed &&
DicomCodecRegistry.GetCodec(baseFile.TransferSyntax) != null)
{
baseFile.ChangeTransferSyntax(TransferSyntax.ExplicitVrLittleEndian);
}
if (dupFile.TransferSyntax.Encapsulated || baseFile.TransferSyntax.Encapsulated)
{
string failure = String.Format("Base file transfer syntax is '{0}' while duplicate file has '{1}'",
baseFile.TransferSyntax, dupFile.TransferSyntax);
var list = new List <DicomAttributeComparisonResult>();
var compareResult = new DicomAttributeComparisonResult
{
ResultType = ComparisonResultType.DifferentValues,
TagName = DicomTagDictionary.GetDicomTag(DicomTags.TransferSyntaxUid).Name,
Details = failure
};
list.Add(compareResult);
CreateDuplicateSIQEntry(uid, dupFile, list);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
return(result);
}
}
var failureReason = new List <DicomAttributeComparisonResult>();
if (baseFile.DataSet.Equals(dupFile.DataSet, ref failureReason))
{
Platform.Log(LogLevel.Info,
"Duplicate SOP being processed is identical. Removing SOP: {0}",
baseFile.MediaStorageSopInstanceUid);
RemoveWorkQueueUid(uid, duplicateSopPath);
result.ActionTaken = DuplicateProcessResultAction.Delete;
}
else
{
CreateDuplicateSIQEntry(uid, dupFile, failureReason);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
}
return(result);
}
/// <summary>
/// Compares received duplicate with the existing copy in the filesystem and throw it into the SIQ if they differ.
/// Otherwise, simply delete the duplicate and keep everything as it.
/// </summary>
/// <param name="dupFile"></param>
/// <param name="baseFile"></param>
/// <param name="uid"></param>
/// <returns></returns>
private ProcessDuplicateResult CompareDuplicates(DicomFile dupFile, DicomFile baseFile, WorkQueueUid uid)
{
var result = new ProcessDuplicateResult();
string duplicateSopPath = ServerHelper.GetDuplicateUidPath(StorageLocation, uid);
if (!dupFile.TransferSyntax.Equals(baseFile.TransferSyntax))
{
// If they're compressed, and we have a codec, lets decompress and still do the comparison
if (dupFile.TransferSyntax.Encapsulated
&& !dupFile.TransferSyntax.LossyCompressed
&& DicomCodecRegistry.GetCodec(dupFile.TransferSyntax) != null)
{
dupFile.ChangeTransferSyntax(TransferSyntax.ExplicitVrLittleEndian);
}
if (baseFile.TransferSyntax.Encapsulated
&& !baseFile.TransferSyntax.LossyCompressed
&& DicomCodecRegistry.GetCodec(baseFile.TransferSyntax) != null)
{
baseFile.ChangeTransferSyntax(TransferSyntax.ExplicitVrLittleEndian);
}
if (dupFile.TransferSyntax.Encapsulated || baseFile.TransferSyntax.Encapsulated)
{
string failure = String.Format("Base file transfer syntax is '{0}' while duplicate file has '{1}'",
baseFile.TransferSyntax, dupFile.TransferSyntax);
var list = new List<DicomAttributeComparisonResult>();
var compareResult = new DicomAttributeComparisonResult
{
ResultType = ComparisonResultType.DifferentValues,
TagName = DicomTagDictionary.GetDicomTag(DicomTags.TransferSyntaxUid).Name,
Details = failure
};
list.Add(compareResult);
CreateDuplicateSIQEntry(uid, dupFile, list);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
return result;
}
}
var failureReason = new List<DicomAttributeComparisonResult>();
if (baseFile.DataSet.Equals(dupFile.DataSet, ref failureReason))
{
Platform.Log(LogLevel.Info,
"Duplicate SOP being processed is identical. Removing SOP: {0}",
baseFile.MediaStorageSopInstanceUid);
RemoveWorkQueueUid(uid, duplicateSopPath);
result.ActionTaken = DuplicateProcessResultAction.Delete;
}
else
{
CreateDuplicateSIQEntry(uid, dupFile, failureReason);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
}
return result;
}
private ProcessDuplicateResult ProcessDuplicate(DicomFile dupFile, WorkQueueUid uid, StudyXml studyXml)
{
var result = new ProcessDuplicateResult();
var data = uid.SerializeWorkQueueUidData;
var basePath = StorageLocation.GetSopInstancePath(uid.SeriesInstanceUid, uid.SopInstanceUid);
if (!File.Exists(basePath))
{
// NOTE: This is special case. The file which caused dicom service to think this sop is a duplicate
// no longer exists in the study folder. Perhaps it has been moved to another folder during auto reconciliation.
// We have nothing to compare against so let's just throw it into the SIQ queue.
CreateDuplicateSIQEntry(uid, dupFile, null);
result.ActionTaken = DuplicateProcessResultAction.Reconcile;
}
else
{
var duplicateEnum = data.DuplicateProcessing.HasValue ? data.DuplicateProcessing.Value : DuplicateProcessingEnum.Compare;
switch(duplicateEnum)
{
case DuplicateProcessingEnum.OverwriteSop:
// Note: There's actually no difference between OverwriteDuplicate and OverwriteAndUpdateDuplicate. But decided to leave it as is.
return OverwriteDuplicate(dupFile, uid, studyXml);
case DuplicateProcessingEnum.OverwriteSopAndUpdateDatabase:
return OverwriteAndUpdateDuplicate(dupFile, uid, studyXml);
case DuplicateProcessingEnum.OverwriteReport:
var file = new DicomFile(basePath);
return ProcessDuplicateReport(dupFile, file, uid, studyXml);
case DuplicateProcessingEnum.Compare:
var baseFile = new DicomFile(basePath);
return CompareDuplicates(dupFile, baseFile, uid);
default:
throw new InvalidOperationException("");
}
}
return result;
}
private ProcessDuplicateResult OverwriteDuplicate(DicomFile dupFile, WorkQueueUid uid, StudyXml studyXml)
{
Platform.Log(LogLevel.Info, "Overwriting duplicate SOP {0}", uid.SopInstanceUid);
var result = new ProcessDuplicateResult();
result.ActionTaken = DuplicateProcessResultAction.Accept;
using (var processor = new ServerCommandProcessor("Overwrite duplicate instance"))
{
var destination = Context.StorageLocation.GetSopInstancePath(uid.SeriesInstanceUid, uid.SopInstanceUid);
processor.AddCommand(new RenameFileCommand(dupFile.Filename, destination, false));
// Ideally we don't need to insert the instance into the database since it's a duplicate.
// However, we need to do so to ensure the Study record is recreated if we are dealing with an orphan study.
// For other cases, this will cause the instance count in the DB to be out of sync with the filesystem.
// But it will be corrected at the end of the processing when the study verification is executed.
processor.AddCommand(new InsertInstanceCommand(dupFile, Context.StorageLocation));
// Update the StudyStream object
processor.AddCommand(new InsertStudyXmlCommand(dupFile, studyXml, Context.StorageLocation));
processor.AddCommand(new DeleteWorkQueueUidCommand(uid));
if (!processor.Execute())
{
// cause the item to fail
throw new Exception(string.Format("Error occurred when trying to overwrite duplicate in the filesystem."), processor.FailureException);
}
}
return result;
}