private void DeleteSeriesFromDbExecuting(object sender, EventArgs e)
{
DeleteSeriesFromDBCommand cmd = sender as DeleteSeriesFromDBCommand;
if (cmd != null)
{
OnDeletingSeriesInDatabase(cmd.Series);
}
}
private void ProcessSeriesLevelDelete(Model.WorkQueue item)
{
// ensure the Study is loaded.
Study study = StorageLocation.Study;
Platform.CheckForNullReference(study, "Study record doesn't exist");
Platform.Log(LogLevel.Info, "Processing Series Level Deletion for Study {0}, A#: {1}",
study.StudyInstanceUid, study.AccessionNumber);
_seriesToDelete = new List <Series>();
bool completed = false;
try
{
// Load the list of Series to be deleted from the WorkQueueUid
LoadUids(item);
// Go through the list of series and add commands
// to delete each of them. It's all or nothing.
using (ServerCommandProcessor processor = new ServerCommandProcessor(String.Format("Deleting Series from study {0}, A#:{1}, Patient: {2}, ID:{3}", study.StudyInstanceUid, study.AccessionNumber, study.PatientsName, study.PatientId)))
{
StudyXml studyXml = StorageLocation.LoadStudyXml();
IDictionary <string, Series> existingSeries = StorageLocation.Study.Series;
// Add commands to delete the folders and update the xml
foreach (WorkQueueUid uid in WorkQueueUidList)
{
// Delete from study XML
if (studyXml.Contains(uid.SeriesInstanceUid))
{
//Note: DeleteDirectoryCommand doesn't throw exception if the folder doesn't exist
var xmlUpdate = new RemoveSeriesFromStudyXml(studyXml, uid.SeriesInstanceUid);
processor.AddCommand(xmlUpdate);
}
// Delete from filesystem
string path = StorageLocation.GetSeriesPath(uid.SeriesInstanceUid);
if (Directory.Exists(path))
{
var delDir = new DeleteDirectoryCommand(path, true);
processor.AddCommand(delDir);
}
}
// flush the updated xml to disk
processor.AddCommand(new SaveXmlCommand(studyXml, StorageLocation));
// Update the db.. NOTE: these commands are executed at the end.
foreach (WorkQueueUid uid in WorkQueueUidList)
{
// Delete from DB
WorkQueueUid queueUid = uid;
Series theSeries = existingSeries[queueUid.SeriesInstanceUid];
if (theSeries != null)
{
_seriesToDelete.Add(theSeries);
var delSeries = new DeleteSeriesFromDBCommand(StorageLocation, theSeries);
processor.AddCommand(delSeries);
delSeries.Executing += DeleteSeriesFromDbExecuting;
}
else
{
// Series doesn't exist
Platform.Log(LogLevel.Info, "Series {0} is invalid or no longer exists", uid.SeriesInstanceUid);
}
// The WorkQueueUid must be cleared before the entry can be removed from the queue
var deleteUid = new DeleteWorkQueueUidCommand(uid);
processor.AddCommand(deleteUid);
// Force a re-archival if necessary
processor.AddCommand(new InsertArchiveQueueCommand(item.ServerPartitionKey, item.StudyStorageKey));
}
if (!processor.Execute())
{
throw new ApplicationException(
String.Format("Error occurred when series from Study {0}, A#: {1}",
study.StudyInstanceUid, study.AccessionNumber), processor.FailureException);
}
else
{
foreach (Series series in _seriesToDelete)
{
OnSeriesDeleted(series);
}
}
}
completed = true;
}
finally
{
if (completed)
{
OnCompleted();
PostProcessing(item, WorkQueueProcessorStatus.Complete, WorkQueueProcessorDatabaseUpdate.ResetQueueState);
}
else
{
PostProcessing(item, WorkQueueProcessorStatus.Pending, WorkQueueProcessorDatabaseUpdate.None);
}
}
}