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);
}
