internal static void PlaceFileIntoQueue()
{
if (!_servicesFlags.TryLock("PlaceFileIntoQueue"))
{
return;
}
try
{
using (var db = new DB.DataContext())
{
db.DataContext.StoredProcedure <object>("FileManager_PlaceFileIntoQueue");
}
}
catch (ThreadAbortException) { }
catch (Exception ex)
{
_thisModule?.RegisterEvent(EventType.Error, "Ошибка заполнения очереди удаления", null, ex);
}
finally
{
_servicesFlags.ReleaseLock("PlaceFileIntoQueue");
}
}
internal static void CheckRemovedFiles(bool isStart)
{
if (!_servicesFlags.TryLock("CheckRemovedFiles"))
{
return;
}
bool isFinalized = false;
int countFiles = 0;
try
{
if (isStart)
{
_servicesFlags.ReleaseLock("CheckRemovedFilesMax");
TasksManager.SetTask(typeof(FileManager).FullName + "_" + nameof(CheckRemovedFiles) + "_minutely5", Cron.MinuteInterval(5), () => CheckRemovedFiles(false));
_thisModule?.RegisterEvent(EventType.Info, "Запуск регулярной задачи проверки файлов.", null);
}
var executionTimeLimit = new TimeSpan(0, 4, 30);
var dateStart = DateTime.Now;
int idFileMax = _checkRemovedFilesMax;
var rootDirectory = _thisModule?.AppCore?.ApplicationWorkingFolder;
using (var db = new DB.DataContext())
{
while ((DateTime.Now - dateStart) < executionTimeLimit)
{
var filesQuery = db.File.AsNoTracking().Where(x => !x.IsRemoved && !x.IsRemoving && x.IdFile > idFileMax).OrderBy(x => x.IdFile).Take(5000);
var filesList = filesQuery.ToList();
if (filesList.Count == 0)
{
isFinalized = true;
break;
}
var updateList = new List <DB.File>();
filesList.ForEach(file =>
{
try
{
if (!File.Exists(Path.Combine(rootDirectory, file.PathFile)))
{
file.IsRemoving = true;
updateList.Add(file);
}
}
catch (IOException) { return; }
catch (UnauthorizedAccessException) { return; }
catch { }
idFileMax = file.IdFile;
});
if (updateList.Count > 0)
{
using (var scope = db.CreateScope(TransactionScopeOption.RequiresNew))
{
db.File.InsertOrDuplicateUpdate(updateList, new UpsertField(nameof(DB.File.IsRemoved)), new UpsertField(nameof(DB.File.IsRemoving)));
scope.Commit();
}
countFiles += updateList.Count;
}
_checkRemovedFilesMax = idFileMax;
}
}
if (isFinalized)
{
TasksManager.RemoveTask(typeof(FileManager).FullName + "_" + nameof(CheckRemovedFiles) + "_minutely5");
//TasksManager.SetTask(typeof(FileManager).FullName + "_" + nameof(CheckRemovedFiles) + "_0", DateTime.Now.AddHours(2), () => CheckRemovedFiles(true));
TasksManager.SetTask(typeof(FileManager).FullName + "_" + nameof(CheckRemovedFiles) + "_0", DateTime.Now.AddMinutes(1), () => CheckRemovedFiles(true));
_thisModule?.RegisterEvent(EventType.Info, "Удаление регулярной задачи проверки файлов.", null);
}
}
catch (ThreadAbortException) { }
catch (Exception ex)
{
_thisModule?.RegisterEvent(EventType.Error, "Ошибка заполнения очереди удаления", null, ex);
}
finally
{
_servicesFlags.ReleaseLock("CheckRemovedFiles");
if (countFiles > 0)
{
_thisModule?.RegisterEvent(EventType.Info, "Проверка удаленных файлов", $"На удаление помечено {countFiles} файлов.", null);
}
}
}
internal static void RemoveMarkedFiles()
{
if (!_servicesFlags.TryLock("RemoveMarkedFiles"))
{
return;
}
int countFiles = 0;
try
{
var executionTimeLimit = TimeSpan.FromSeconds(50);
var dateStart = DateTime.Now;
int idFileMax = 0;
var rootDirectory = _thisModule?.AppCore?.ApplicationWorkingFolder;
using (var db = new DB.DataContext())
{
while ((DateTime.Now - dateStart) < executionTimeLimit)
{
var fileToRemoveQuery = (from FileRemoveQueue in db.FileRemoveQueue
join File in db.File.AsNoTracking() on FileRemoveQueue.IdFile equals File.IdFile into File_j
from File in File_j.DefaultIfEmpty()
where FileRemoveQueue.IdFile > idFileMax
orderby FileRemoveQueue.IdFile ascending
select new { FileRemoveQueue, File }).Take(100);
var fileToRemoveList = fileToRemoveQuery.ToList();
if (fileToRemoveList.Count == 0)
{
break;
}
var removeList = new List <int>();
var updateList = new List <DB.File>();
fileToRemoveList.ForEach(row =>
{
try
{
if (row.File == null)
{
removeList.Add(row.FileRemoveQueue.IdFile);
}
else
{
if (File.Exists(Path.Combine(rootDirectory, row.File.PathFile)))
{
File.Delete(Path.Combine(rootDirectory, row.File.PathFile));
}
removeList.Add(row.FileRemoveQueue.IdFile);
row.File.IsRemoving = false;
row.File.IsRemoved = true;
updateList.Add(row.File);
}
}
catch (IOException) { return; }
catch (UnauthorizedAccessException) { return; }
catch { }
idFileMax = row.FileRemoveQueue.IdFile;
});
if (removeList.Count > 0 || updateList.Count > 0)
{
using (var scope = db.CreateScope(TransactionScopeOption.RequiresNew))
{
if (removeList.Count > 0)
{
db.FileRemoveQueue.Where(x => removeList.Contains(x.IdFile)).Delete();
db.SaveChanges <DB.FileRemoveQueue>();
}
if (updateList.Count > 0)
{
if (updateList.Any(x => x.IsRemoving || !x.IsRemoved))
{
throw new Exception("Флаги удаления сбросились!");
}
db.File.InsertOrDuplicateUpdate(updateList, new UpsertField(nameof(DB.File.IsRemoved)), new UpsertField(nameof(DB.File.IsRemoving)));
}
scope.Commit();
}
countFiles += updateList.Count;
}
}
}
}
catch (ThreadAbortException) { }
catch (Exception ex)
{
_thisModule?.RegisterEvent(EventType.Error, "Ошибка заполнения очереди удаления", null, ex);
}
finally
{
_servicesFlags.ReleaseLock("RemoveMarkedFiles");
if (countFiles > 0)
{
_thisModule?.RegisterEvent(EventType.Info, "Удаление файлов", $"Удалено {countFiles} файлов.", null);
}
}
}