private void Process(DicomMessageBase message, FileImportBehaviourEnum fileImportBehaviour, WorkItem workItem, DicomProcessingResult result)
{
result.Initialize();
// Use the command processor for rollback capabilities.
using (var commandProcessor = new ViewerCommandProcessor(String.Format("Processing Sop Instance {0}", result.SopInstanceUid)))
{
try
{
var studyLocation = new StudyLocation(result.StudyInstanceUid);
String destinationFile = studyLocation.GetSopInstancePath(result.SeriesInstanceUid, result.SopInstanceUid);
DicomFile file = ConvertToDicomFile(message, destinationFile, _context.SourceAE);
// Create the Study Folder, if need be
commandProcessor.AddCommand(new CreateDirectoryCommand(studyLocation.StudyFolder));
bool duplicateFile = false;
string dupName = null;
if (File.Exists(destinationFile))
{
// TODO (CR Jun 2012): Shouldn't the commands themselves make this decision at the time
// the file is being saved? Otherwise, what happens if the same SOP were being saved 2x simultaneously.
// I know the odds are low, but just pointing it out.
duplicateFile = true;
dupName = Guid.NewGuid().ToString() + ".dcm";
destinationFile = Path.Combine(Path.GetDirectoryName(destinationFile) ?? string.Empty, dupName);
}
if (fileImportBehaviour == FileImportBehaviourEnum.Move)
{
commandProcessor.AddCommand(CommandFactory.CreateRenameFileCommand(file.Filename, destinationFile, true));
}
else if (fileImportBehaviour == FileImportBehaviourEnum.Copy)
{
commandProcessor.AddCommand(CommandFactory.CreateCopyFileCommand(file.Filename, destinationFile, true));
}
else if (fileImportBehaviour == FileImportBehaviourEnum.Save)
{
commandProcessor.AddCommand(CommandFactory.CreateSaveDicomFileCommand(destinationFile, file, true));
}
var insertWorkItemCommand = CreateWorkItemCommand(workItem, result, file, duplicateFile, dupName);
commandProcessor.AddCommand(insertWorkItemCommand);
if (commandProcessor.Execute())
{
result.DicomStatus = DicomStatuses.Success;
IncrementTotalFiles(insertWorkItemCommand, result.StudyInstanceUid);
}
else
{
if (commandProcessor.FailureException is ChangeConflictException
|| commandProcessor.FailureException is SqlCeLockTimeoutException)
result.RetrySuggested = true; // Change conflict or lock timeout may work if we just retry
Platform.Log(LogLevel.Warn, "Failure Importing file: {0}", file.Filename);
string failureMessage = String.Format(
"Failure processing message: {0}. Sending failure status.",
commandProcessor.FailureReason);
result.SetError(DicomStatuses.ProcessingFailure, failureMessage);
// processor already rolled back
}
}
catch (Exception e)
{
Platform.Log(LogLevel.Error, e, "Unexpected exception when {0}. Rolling back operation.", commandProcessor.Description);
commandProcessor.Rollback();
result.SetError(result.DicomStatus ?? DicomStatuses.ProcessingFailure, e.Message);
}
}
}
private void Process(DicomMessageBase message, FileImportBehaviourEnum fileImportBehaviour, WorkItem workItem, DicomProcessingResult result)
{
result.Initialize();
// Use the command processor for rollback capabilities.
using (var commandProcessor = new ViewerCommandProcessor(String.Format("Processing Sop Instance {0}", result.SopInstanceUid)))
{
try
{
var studyLocation = new StudyLocation(result.StudyInstanceUid);
String destinationFile = studyLocation.GetSopInstancePath(result.SeriesInstanceUid, result.SopInstanceUid);
DicomFile file = ConvertToDicomFile(message, destinationFile, _context.SourceAE);
// Create the Study Folder, if need be
commandProcessor.AddCommand(new CreateDirectoryCommand(studyLocation.StudyFolder));
bool duplicateFile = false;
string dupName = null;
if (File.Exists(destinationFile))
{
// TODO (CR Jun 2012): Shouldn't the commands themselves make this decision at the time
// the file is being saved? Otherwise, what happens if the same SOP were being saved 2x simultaneously.
// I know the odds are low, but just pointing it out.
duplicateFile = true;
dupName = Guid.NewGuid().ToString() + ".dcm";
destinationFile = Path.Combine(Path.GetDirectoryName(destinationFile), dupName);
}
if (fileImportBehaviour == FileImportBehaviourEnum.Move)
{
commandProcessor.AddCommand(new RenameFileCommand(file.Filename, destinationFile, true));
}
else if (fileImportBehaviour == FileImportBehaviourEnum.Copy)
{
commandProcessor.AddCommand(new CopyFileCommand(file.Filename, destinationFile, true));
}
else if (fileImportBehaviour == FileImportBehaviourEnum.Save)
{
commandProcessor.AddCommand(new SaveDicomFileCommand(destinationFile, file, true));
}
var insertWorkItemCommand = CreateWorkItemCommand(workItem, result, file, duplicateFile, dupName);
commandProcessor.AddCommand(insertWorkItemCommand);
if (commandProcessor.Execute())
{
result.DicomStatus = DicomStatuses.Success;
IncrementTotalFiles(insertWorkItemCommand, result.StudyInstanceUid);
}
else
{
if (commandProcessor.FailureException is ChangeConflictException
|| commandProcessor.FailureException is SqlCeLockTimeoutException)
result.RetrySuggested = true; // Change conflict or lock timeout may work if we just retry
Platform.Log(LogLevel.Warn, "Failure Importing file: {0}", file.Filename);
string failureMessage = String.Format(
"Failure processing message: {0}. Sending failure status.",
commandProcessor.FailureReason);
result.SetError(DicomStatuses.ProcessingFailure, failureMessage);
// processor already rolled back
}
}
catch (Exception e)
{
Platform.Log(LogLevel.Error, e, "Unexpected exception when {0}. Rolling back operation.", commandProcessor.Description);
commandProcessor.Rollback();
result.SetError(result.DicomStatus ?? DicomStatuses.ProcessingFailure, e.Message);
}
}
}
