protected long TryPolling(long currentServerSession, long currentEventSequence, out bool errorOccured) { errorOccured = true; IList <IEventItem> events = null; try { events = EventService.PollEvents(currentServerSession, currentEventSequence, MaxWaitInterval); errorOccured = false; } catch (Exception e) { if (Log.ErrorEnabled) { Log.Error(e); } } if (events == null || events.Count == 0) { return(currentEventSequence); } long timeBeforeDispatch = DateTimeUtil.CurrentTimeMillis(); EventDispatcher.EnableEventQueue(); try { for (int a = 0, size = events.Count; a < size; a++) { IEventItem eventObject = events[a]; EventDispatcher.DispatchEvent(eventObject.EventObject, eventObject.DispatchTime, eventObject.SequenceNumber); currentEventSequence = eventObject.SequenceNumber; } } finally { EventDispatcher.FlushEventQueue(); } if (Log.InfoEnabled) { long timeAfterDispatch = DateTimeUtil.CurrentTimeMillis(); Log.Info("Dispatching " + events.Count + " event(s) took " + (timeAfterDispatch - timeBeforeDispatch) + " ms."); } return(currentEventSequence); }
protected virtual void ProcessCUDResult(Object objectToMerge, ICUDResult cudResult, IList <Object> unpersistedObjectsToDelete, ProceedWithMergeHook proceedHook, bool addNewEntitiesToCache) { if (cudResult.AllChanges.Count > 0 || (unpersistedObjectsToDelete != null && unpersistedObjectsToDelete.Count > 0)) { if (proceedHook != null) { bool proceed = proceedHook.Invoke(cudResult, unpersistedObjectsToDelete); if (!proceed) { return; } } } if (cudResult.AllChanges.Count == 0) { if (Log.InfoEnabled) { Log.Info("Service call skipped early because there is nothing to merge"); } } else { IOriCollection oriColl; EventDispatcher.EnableEventQueue(); try { EventDispatcher.Pause(Cache); try { bool?oldNewlyPersistedEntities = addNewlyPersistedEntitiesTL.Value; addNewlyPersistedEntitiesTL.Value = addNewEntitiesToCache; try { IResultingBackgroundWorkerDelegate <IOriCollection> runnable = new IResultingBackgroundWorkerDelegate <IOriCollection>(delegate() { IOriCollection oriColl2 = MergeService.Merge(cudResult, null); MergeController.ApplyChangesToOriginals(cudResult, oriColl2, null); return(oriColl2); }); if (Transaction == null || Transaction.Active) { oriColl = runnable(); } else { oriColl = Transaction.RunInLazyTransaction(runnable); } } finally { addNewlyPersistedEntitiesTL.Value = oldNewlyPersistedEntities; } } finally { EventDispatcher.Resume(Cache); } } finally { EventDispatcher.FlushEventQueue(); } DataChangeEvent dataChange = DataChangeEvent.Create(-1, -1, -1); // This is intentionally a remote source dataChange.IsLocalSource = false; if (IsNetworkClientMode) { IList <IChangeContainer> allChanges = cudResult.AllChanges; IList <IObjRef> orisInReturn = oriColl.AllChangeORIs; for (int a = allChanges.Count; a-- > 0;) { IChangeContainer changeContainer = allChanges[a]; IObjRef reference = changeContainer.Reference; IObjRef referenceInReturn = orisInReturn[a]; if (changeContainer is CreateContainer) { if (referenceInReturn.IdNameIndex != ObjRef.PRIMARY_KEY_INDEX) { throw new ArgumentException("Implementation error: Only PK references are allowed in events"); } dataChange.Inserts.Add(new DataChangeEntry(referenceInReturn.RealType, referenceInReturn.IdNameIndex, referenceInReturn.Id, referenceInReturn.Version)); } else if (changeContainer is UpdateContainer) { if (referenceInReturn.IdNameIndex != ObjRef.PRIMARY_KEY_INDEX) { throw new ArgumentException("Implementation error: Only PK references are allowed in events"); } dataChange.Updates.Add(new DataChangeEntry(referenceInReturn.RealType, referenceInReturn.IdNameIndex, referenceInReturn.Id, referenceInReturn.Version)); } else if (changeContainer is DeleteContainer) { if (reference.IdNameIndex != ObjRef.PRIMARY_KEY_INDEX) { throw new ArgumentException("Implementation error: Only PK references are allowed in events"); } dataChange.Deletes.Add(new DataChangeEntry(reference.RealType, reference.IdNameIndex, reference.Id, reference.Version)); } } //EventDispatcher.DispatchEvent(dataChange, DateTime.Now, -1); } } if (unpersistedObjectsToDelete != null && unpersistedObjectsToDelete.Count > 0) { // Create a DCE for all objects without an id but which should be deleted... // This is the case for newly created objects on client side, which should be // "cancelled". The DCE notifies all models which contain identity references to the related // objects to erase their existence in all controls. They are not relevant in the previous // server merge process DataChangeEvent dataChange = DataChangeEvent.Create(0, 0, unpersistedObjectsToDelete.Count); for (int a = unpersistedObjectsToDelete.Count; a-- > 0;) { Object unpersistedObject = unpersistedObjectsToDelete[a]; dataChange.Deletes.Add(new DirectDataChangeEntry(unpersistedObject)); } EventDispatcher.DispatchEvent(dataChange, DateTime.Now, -1); } RevertChangesHelper.RevertChanges(objectToMerge); }