private static bool ContainsOnlyBackupFiles(DirectoryInfo dir, ScanResultEntry scanResult)
{
FileInfo[] files = dir.GetFiles();
foreach (FileInfo file in files)
{
string ext = file.Name.ToUpper();
if (!ext.Contains("BAK") && !ext.Contains("TMP") && !ext.Contains("TEMP"))
{
scanResult.BackupFilesOnly = false;
return(false);
}
}
DirectoryInfo[] subDirs = dir.GetDirectories();
foreach (DirectoryInfo subDir in subDirs)
{
if (!ContainsOnlyBackupFiles(subDir, scanResult))
{
scanResult.BackupFilesOnly = false;
return(false);
}
}
scanResult.BackupFilesOnly = true;
return(true);
}
private static bool CheckIfFolderIsEmpty(DirectoryInfo dir, ScanResultEntry scanResult)
{
DirectoryInfo[] subDirs = dir.GetDirectories();
FileInfo[] files = dir.GetFiles();
if (subDirs.Length == 0 && files.Length == 0)
{
scanResult.IsEmpty = true;
return(true);
}
if (files.Length > 0)
{
scanResult.IsEmpty = false;
return(false);
}
foreach (DirectoryInfo subDir in subDirs)
{
if (!CheckIfFolderIsEmpty(subDir, scanResult))
{
scanResult.IsEmpty = false;
return(false);
}
}
scanResult.IsEmpty = true;
return(true);
}
private bool CheckIfStudyWasDeletedAfterward(FileSystemInfo dir, ScanResultEntry scanResult)
{
scanResult.StudyWasOnceDeleted = (null != CollectionUtils.SelectFirst(_deletedStudies,
record => record.StudyInstanceUid == scanResult.StudyInstanceUid &&
record.Timestamp.ToUniversalTime() > dir.LastWriteTimeUtc
));
return(scanResult.StudyWasOnceDeleted);
}
private static StudyStorage FindStudyStorage(ScanResultEntry result)
{
using (IReadContext ctx = PersistentStoreRegistry.GetDefaultStore().OpenReadContext())
{
IStudyStorageEntityBroker broker = ctx.GetBroker <IStudyStorageEntityBroker>();
StudyStorageSelectCriteria criteria = new StudyStorageSelectCriteria();
criteria.StudyInstanceUid.EqualTo(result.StudyInstanceUid);
criteria.ServerPartitionKey.EqualTo(result.ServerPartitionKey);
return(broker.FindOne(criteria));
}
}
private static bool CheckIfStudyNoLongerExists(ScanResultEntry scanResult)
{
StudyStorage storage = FindStudyStorage(scanResult);
scanResult.StudyNoLongerExists = storage == null;
if (storage != null)
{
scanResult.StudyInsertTime = storage.InsertTime;
scanResult.Storage = storage;
}
return(scanResult.StudyNoLongerExists);
}
private static bool CheckIfStudyIsInWorkQueue(ScanResultEntry scanResult)
{
using (IReadContext ctx = PersistentStoreRegistry.GetDefaultStore().OpenReadContext())
{
IWorkQueueEntityBroker broker = ctx.GetBroker <IWorkQueueEntityBroker>();
WorkQueueSelectCriteria criteria = new WorkQueueSelectCriteria();
criteria.StudyStorageKey.EqualTo(scanResult.Storage.Key);
var list = broker.Find(criteria);
scanResult.IsInWorkQueue = list != null && list.Count > 0;
}
return(scanResult.IsInWorkQueue);
}
private bool CheckInSIQ(FileSystemInfo groupDir, ScanResultEntry scanResult)
{
Guid guid = Guid.Empty;
try
{
guid = new Guid(groupDir.Name);
}
catch (Exception)
{ }
scanResult.IsInSIQ = !guid.Equals(Guid.Empty) ? FindSIQByGuid(guid) : FindSIQByGroupID(groupDir.Name);
return(scanResult.IsInSIQ);
}
private static bool CheckIfStudyWasInsertedAfter(FileSystemInfo dir, ScanResultEntry scanResult)
{
scanResult.StudyWasResent = dir.LastWriteTimeUtc < scanResult.StudyInsertTime.ToUniversalTime();
return(scanResult.StudyWasResent);
}
private ScanResultEntry ProcessDir(DirectoryInfo groupDir, ServerEntityKey partitionKey)
{
var result = new ScanResultEntry
{
Path = groupDir.FullName,
DirectoryLastWriteTime = groupDir.LastWriteTimeUtc
};
if (groupDir.LastWriteTimeUtc >= Platform.Time.ToUniversalTime() - TimeSpan.FromMinutes(30))
{
return(new ScanResultEntry {
Path = groupDir.FullName, Skipped = true
});
}
if (CheckInSIQ(groupDir, result))
{
return(result);
}
if (CheckIfFolderIsEmpty(groupDir, result))
{
return(result);
}
// check if all files are backup files
if (ContainsOnlyBackupFiles(groupDir, result))
{
return(result);
}
try
{
result.StudyInstanceUid = FindStudyUid(groupDir);
result.ServerPartitionKey = partitionKey;
}
catch (Exception ex)
{
Platform.Log(LogLevel.Error, ex);
result.ScanFailed = true;
result.FailReason = ex.Message;
return(result);
}
if (CheckIfStudyNoLongerExists(result))
{
return(result);
}
Debug.Assert(result.Storage != null);
if (CheckIfStudyIsInWorkQueue(result))
{
return(result);
}
if (CheckIfStudyWasDeletedAfterward(groupDir, result))
{
return(result);
}
if (CheckIfStudyWasInsertedAfter(groupDir, result))
{
return(result);
}
result.Undetermined = true;
return(result);
}