/// <summary>
/// Process study migration candidates retrieved from the <see cref="Model.FilesystemQueue"/> table
/// </summary>
/// <param name="candidateList">The list of candidate studies for deleting.</param>
private void ProcessStudyMigrateCandidates(IList <FilesystemQueue> candidateList)
{
Platform.CheckForNullReference(candidateList, "candidateList");
if (candidateList.Count > 0)
{
Platform.Log(LogLevel.Debug, "Scheduling tier-migration for {0} eligible studies...", candidateList.Count);
}
FilesystemProcessStatistics summaryStats = new FilesystemProcessStatistics("FilesystemTierMigrateInsert");
foreach (FilesystemQueue queueItem in candidateList)
{
if (_bytesToRemove < 0 || CancelPending)
{
Platform.Log(LogLevel.Debug, "Estimated disk space has been reached.");
break;
}
StudyProcessStatistics stats = new StudyProcessStatistics("TierMigrateStudy");
stats.TotalTime.Start();
stats.StudyStorageTime.Start();
// First, get the StudyStorage locations for the study, and calculate the disk usage.
StudyStorageLocation location;
if (!FilesystemMonitor.Instance.GetWritableStudyStorageLocation(queueItem.StudyStorageKey, out location))
{
continue;
}
stats.StudyStorageTime.End();
stats.CalculateDirectorySizeTime.Start();
// Get the disk usage
float studySize = EstimateFolderSizeFromStudyXml(location);
stats.CalculateDirectorySizeTime.End();
stats.DirectorySize = (ulong)studySize;
stats.DbUpdateTime.Start();
using (
IUpdateContext update =
PersistentStoreRegistry.GetDefaultStore().OpenUpdateContext(UpdateContextSyncMode.Flush))
{
ILockStudy lockstudy = update.GetBroker <ILockStudy>();
LockStudyParameters lockParms = new LockStudyParameters
{
StudyStorageKey = location.Key,
QueueStudyStateEnum = QueueStudyStateEnum.MigrationScheduled
};
if (!lockstudy.Execute(lockParms) || !lockParms.Successful)
{
Platform.Log(LogLevel.Warn, "Unable to lock study for inserting Tier Migration. Reason:{0}. Skipping study ({1})",
lockParms.FailureReason, location.StudyInstanceUid);
continue;
}
IInsertWorkQueueFromFilesystemQueue broker = update.GetBroker <IInsertWorkQueueFromFilesystemQueue>();
InsertWorkQueueFromFilesystemQueueParameters insertParms = new InsertWorkQueueFromFilesystemQueueParameters
{
StudyStorageKey = location.GetKey(),
ServerPartitionKey = location.ServerPartitionKey,
ScheduledTime = _scheduledTime,
DeleteFilesystemQueue = true,
WorkQueueTypeEnum = WorkQueueTypeEnum.MigrateStudy,
FilesystemQueueTypeEnum =
FilesystemQueueTypeEnum.TierMigrate
};
Platform.Log(LogLevel.Debug, "Scheduling tier-migration for study {0} from {1} at {2}...",
location.StudyInstanceUid, location.FilesystemTierEnum, _scheduledTime);
WorkQueue insertItem = broker.FindOne(insertParms);
if (insertItem == null)
{
Platform.Log(LogLevel.Error,
"Unexpected problem inserting 'MigrateStudy' record into WorkQueue for Study {0}",
location.StudyInstanceUid);
}
else
{
update.Commit();
_bytesToRemove -= studySize;
_studiesMigrated++;
// spread out the scheduled migration entries based on the size
// assuming that the larger the study the longer it will take to migrate
// The assumed migration speed is arbitarily chosen.
double migrationSpeed = ServiceLockSettings.Default.TierMigrationSpeed * 1024 * 1024; // MB / sec
TimeSpan estMigrateTime = TimeSpan.FromSeconds(studySize / migrationSpeed);
_scheduledTime = _scheduledTime.Add(estMigrateTime);
}
}
stats.DbUpdateTime.End();
stats.TotalTime.End();
summaryStats.AddSubStats(stats);
StatisticsLogger.Log(LogLevel.Debug, stats);
}
summaryStats.CalculateAverage();
StatisticsLogger.Log(LogLevel.Info, false, summaryStats);
}
/// <summary>
/// Process StudyPurge <see cref="FilesystemQueue"/> entries.
/// </summary>
/// <param name="candidateList">The list of candidates for purging</param>
private void ProcessStudyPurgeCandidates(IList <FilesystemQueue> candidateList)
{
if (candidateList.Count > 0)
{
Platform.Log(LogLevel.Debug, "Scheduling purge study for {0} eligible studies...", candidateList.Count);
}
FilesystemProcessStatistics summaryStats = new FilesystemProcessStatistics("FilesystemPurgeInsert");
foreach (FilesystemQueue queueItem in candidateList)
{
if (_bytesToRemove < 0 || CancelPending)
{
break;
}
StudyProcessStatistics stats = new StudyProcessStatistics("PurgeStudy");
stats.TotalTime.Start();
stats.StudyStorageTime.Start();
// First, get the StudyStorage locations for the study, and calculate the disk usage.
StudyStorageLocation location;
if (!FilesystemMonitor.Instance.GetWritableStudyStorageLocation(queueItem.StudyStorageKey, out location))
{
continue;
}
stats.StudyStorageTime.End();
stats.CalculateDirectorySizeTime.Start();
// Get the disk usage
float studySize = EstimateFolderSizeFromStudyXml(location);
stats.CalculateDirectorySizeTime.End();
stats.DirectorySize = (ulong)studySize;
stats.DbUpdateTime.Start();
// Update the DB
using (
IUpdateContext update = PersistentStoreRegistry.GetDefaultStore().OpenUpdateContext(UpdateContextSyncMode.Flush))
{
ILockStudy lockstudy = update.GetBroker <ILockStudy>();
LockStudyParameters lockParms = new LockStudyParameters();
lockParms.StudyStorageKey = location.Key;
lockParms.QueueStudyStateEnum = QueueStudyStateEnum.PurgeScheduled;
if (!lockstudy.Execute(lockParms) || !lockParms.Successful)
{
Platform.Log(LogLevel.Warn, "Unable to lock study for inserting Study Purge, skipping study ({0}",
location.StudyInstanceUid);
continue;
}
IInsertWorkQueueFromFilesystemQueue insertBroker = update.GetBroker <IInsertWorkQueueFromFilesystemQueue>();
InsertWorkQueueFromFilesystemQueueParameters insertParms = new InsertWorkQueueFromFilesystemQueueParameters();
insertParms.StudyStorageKey = location.GetKey();
insertParms.ServerPartitionKey = location.ServerPartitionKey;
insertParms.ScheduledTime = _scheduledTime;
insertParms.DeleteFilesystemQueue = true;
insertParms.WorkQueueTypeEnum = WorkQueueTypeEnum.PurgeStudy;
insertParms.FilesystemQueueTypeEnum = FilesystemQueueTypeEnum.PurgeStudy;
WorkQueue insertItem = insertBroker.FindOne(insertParms);
if (insertItem == null)
{
Platform.Log(LogLevel.Error, "Unexpected problem inserting 'PurgeStudy' record into WorkQueue for Study {0}",
location.StudyInstanceUid);
}
else
{
update.Commit();
_bytesToRemove -= studySize;
_studiesPurged++;
_scheduledTime = _scheduledTime.AddSeconds(2);
}
}
stats.DbUpdateTime.End();
stats.TotalTime.End();
summaryStats.AddSubStats(stats);
StatisticsLogger.Log(LogLevel.Debug, stats);
}
summaryStats.CalculateAverage();
StatisticsLogger.Log(LogLevel.Info, false, summaryStats);
}
public Stream GetStudyHeader(string callingAETitle, HeaderStreamingParameters parameters)
{
ConnectionMonitor.GetMonitor(OperationContext.Current.Host).AddContext(OperationContext.Current);
HeaderStreamingStatistics stats = new HeaderStreamingStatistics();
stats.ProcessTime.Start();
HeaderLoader loader = null;
try
{
Platform.CheckForEmptyString(callingAETitle, "callingAETitle");
Platform.CheckForNullReference(parameters, "parameters");
Platform.CheckForEmptyString(parameters.ReferenceID, "parameters.ReferenceID");
Platform.CheckForEmptyString(parameters.ServerAETitle, "parameters.ServerAETitle");
Platform.CheckForEmptyString(parameters.StudyInstanceUID, "parameters.StudyInstanceUID");
Platform.Log(LogLevel.Debug, "Received request from {0}. Ref # {1} ", callingAETitle, parameters.ReferenceID);
HeaderStreamingContext context = new HeaderStreamingContext();
context.ServiceInstanceID = ID;
context.CallerAE = callingAETitle;
context.Parameters = parameters;
// TODO: perform permission check on callingAETitle
loader = new HeaderLoader(context);
if (!parameters.IgnoreInUse)
{
if (!loader.StudyLocation.CanBeUsedForDiagnostics())
{
throw new StudyAccessException(SR.FaultFaultStudyTemporarilyNotAccessible, loader.StudyLocation.QueueStudyStateEnum, null);
}
}
Stream stream = loader.Load();
if (stream == null)
{
throw new FaultException(loader.FaultDescription);
}
Platform.Log(LogLevel.Debug, "Response sent to {0}. Ref # {1} ", callingAETitle, parameters.ReferenceID);
return(stream);
}
catch (ArgumentException e)
{
throw new FaultException(e.Message);
}
catch (StudyNotFoundException)
{
throw new FaultException <StudyNotFoundFault>(
new StudyNotFoundFault(), String.Format(SR.FaultNotExists, parameters.StudyInstanceUID, parameters.ServerAETitle));
}
catch (StudyIsNearlineException e)
{
throw new FaultException <StudyIsNearlineFault>(
new StudyIsNearlineFault()
{
IsStudyBeingRestored = e.RestoreRequested
},
String.Format(SR.FaultStudyIsNearline, parameters.StudyInstanceUID));
}
catch (StudyAccessException e)
{
if (e.InnerException != null)
{
if (e.InnerException is FileNotFoundException)
{
throw new FaultException <StudyIsInUseFault>(
new StudyIsInUseFault(e.StudyState.Description),
String.Format(SR.FaultFaultStudyTemporarilyNotAccessible, parameters.StudyInstanceUID, e.StudyState));
}
}
throw new FaultException <StudyIsInUseFault>(
new StudyIsInUseFault(e.StudyState.Description),
String.Format(SR.FaultFaultStudyTemporarilyNotAccessible, parameters.StudyInstanceUID, e.StudyState));
}
catch (FilesystemNotReadableException e)
{
//interpret as generic fault
throw new FaultException(e.Message);
}
catch (FileNotFoundException e)
{
// OOPS.. the header is missing
Platform.Log(LogLevel.Error, e, "Unable to process study header request from {0}", callingAETitle);
throw new FaultException(SR.FaultHeaderIsNotAvailable);
}
catch (Exception e)
{
if (!(e is FaultException))
{
Platform.Log(LogLevel.Error, e, "Unable to process study header request from {0}", callingAETitle);
}
throw new FaultException(e.Message);
}
finally
{
stats.ProcessTime.End();
if (loader != null && Settings.Default.LogStatistics)
{
stats.AddField("StudyInstanceUid", parameters.StudyInstanceUID);
stats.AddSubStats(loader.Statistics);
StatisticsLogger.Log(LogLevel.Info, stats);
}
}
}
/// <summary>
/// Perform the edit.
/// </summary>
/// <param name="actionXml">A serialized XML representation of <see cref="SetTagCommand"/> objects</param>
/// <returns></returns>
public bool Edit(XmlElement actionXml)
{
Platform.Log(LogLevel.Info,
"Starting Edit of study {0} for Patient {1} (PatientId:{2} A#:{3}) on Partition {4}",
Study.StudyInstanceUid, Study.PatientsName, Study.PatientId,
Study.AccessionNumber, ServerPartition.Description);
var parser = new EditStudyWorkQueueDataParser();
EditStudyWorkQueueData data = parser.Parse(actionXml);
using (var processor = new ServerCommandProcessor("Web Edit Study"))
{
// Convert UpdateItem in the request into BaseImageLevelUpdateCommand
List <BaseImageLevelUpdateCommand> updateCommands = null;
if (data != null)
{
updateCommands = CollectionUtils.Map <Edit.UpdateItem, BaseImageLevelUpdateCommand>(
data.EditRequest.UpdateEntries,
delegate(Edit.UpdateItem item)
{
// Note: For edit, we assume each UpdateItem is equivalent to SetTagCommand
return(new SetTagCommand(item.DicomTag.TagValue, item.OriginalValue, item.Value));
}
);
}
var updateStudyCommand =
new UpdateStudyCommand(ServerPartition, StorageLocation, updateCommands,
ServerRuleApplyTimeEnum.SopEdited, _workQueue);
processor.AddCommand(updateStudyCommand);
// Note, this command will only insert the ArchiveQueue command if a delete doesn't exist
processor.AddCommand(new InsertArchiveQueueCommand(ServerPartition.Key, StorageLocation.Key));
if (!processor.Execute())
{
Platform.Log(LogLevel.Error, processor.FailureException, "Unexpected failure editing study: {0}",
processor.FailureReason);
FailureReason = processor.FailureReason;
return(false);
}
var context = new StudyEditedEventArgs
{
CommandProcessor = processor,
EditType = data == null ? EditType.WebEdit : data.EditRequest.EditType,
OriginalStudyStorageLocation = StorageLocation,
EditCommands = updateCommands,
OriginalStudy = Study,
OrginalPatient = Patient,
UserId = data == null ? string.Empty : data.EditRequest.UserId,
Reason = data == null ? string.Empty : data.EditRequest.Reason
};
// reload the StudyStorageLocation
NewStorageLocation = StudyStorageLocation.FindStorageLocations(StorageLocation.StudyStorage)[0];
context.NewStudyStorageLocation = NewStorageLocation;
EventManager.FireEvent(this, context);
if (updateStudyCommand.Statistics != null)
{
StatisticsLogger.Log(LogLevel.Info, updateStudyCommand.Statistics);
}
return(true);
}
}
void GetStatisticsLogger()
{
statisticsLogger = this.gameObject.GetComponent <StatisticsLogger>();
}
