protected void ChangeFirstLevelCaches(CacheDependencyNode node, ISet <IObjRef> intermediateDeletes)
{
List <IDataChangeEntry> deletes = new List <IDataChangeEntry>();
ICacheModification cacheModification = this.CacheModification;
bool oldCacheModificationValue = cacheModification.Active;
if (!oldCacheModificationValue)
{
cacheModification.Active = true;
}
try
{
ChangeFirstLevelCachesIntern(node, intermediateDeletes);
}
finally
{
if (!oldCacheModificationValue)
{
cacheModification.Active = oldCacheModificationValue;
}
}
if (deletes.Count > 0)
{
IDataChange dce = DataChangeEvent.Create(0, 0, deletes.Count);
ListUtil.AddAll(dce.Deletes, dce.Deletes.Count, deletes);
GuiThreadHelper.InvokeOutOfGui(delegate()
{
EventDispatcher.DispatchEvent(dce);
});
}
}
protected virtual void RevertChangesIntern(IRevertChangesSavepoint savepoint, IList <Object> objectsToRevert, bool globally,
RevertChangesFinishedCallback revertChangesFinishedCallback)
{
// Store the RevertChangesFinishedCallback from this thread on the stack and set the property null (for following calls):
if (objectsToRevert == null || objectsToRevert.Count == 0)
{
if (revertChangesFinishedCallback != null)
{
revertChangesFinishedCallback.Invoke(true);
}
return;
}
if (globally)
{
GuiThreadHelper.InvokeOutOfGui(delegate()
{
bool success = false;
try
{
DataChangeEvent dataChange = new DataChangeEvent();
dataChange.IsLocalSource = true;
dataChange.Inserts = new List <IDataChangeEntry>(0);
dataChange.Updates = new List <IDataChangeEntry>();
dataChange.Deletes = new List <IDataChangeEntry>();
for (int a = objectsToRevert.Count; a-- > 0;)
{
Object objectToRevert = objectsToRevert[a];
IEntityMetaData metaData = ((IEntityMetaDataHolder)objectToRevert).Get__EntityMetaData();
Object id = metaData.IdMember.GetValue(objectToRevert, false);
if (id == null)
{
dataChange.Deletes.Add(new DirectDataChangeEntry(objectToRevert));
continue;
}
dataChange.Updates.Add(new DataChangeEntry(metaData.EntityType, ObjRef.PRIMARY_KEY_INDEX, id, null));
}
EventDispatcher.DispatchEvent(dataChange, DateTime.Now, -1);
success = true;
}
finally
{
if (revertChangesFinishedCallback != null)
{
revertChangesFinishedCallback.Invoke(success);
}
}
});
}
else
{
// Commented the following part from Ambeth 0.130 and use the part from Ambeth 0.129 due to a deadlock in the merge process:
//GuiThreadHelper.InvokeOutOfGui(delegate()
//{
// bool success1 = false;
// try
// {
// IList<IDataChangeEntry> directObjectDeletes = new List<IDataChangeEntry>();
// IList<Object> initializedObjects = MergeController.ScanForInitializedObjects(objectsToRevert, true, null);
// IList<IObjRef> orisToRevert = new List<IObjRef>();
// ISet<Object> persistedObjectsToRevert = new IdentityHashSet<Object>();
// for (int a = initializedObjects.Count; a-- > 0; )
// {
// Object objectToRevert = initializedObjects[a];
// IEntityMetaData metaData = EntityMetaDataProvider.GetMetaData(objectToRevert.GetType());
// Object id = metaData.IdMember.GetValue(objectToRevert, false);
// if (id == null)
// {
// directObjectDeletes.Add(new DirectDataChangeEntry(objectToRevert));
// continue;
// }
// persistedObjectsToRevert.Add(objectToRevert);
// orisToRevert.Add(new ObjRef(metaData.EntityType, ObjRef.PRIMARY_KEY_INDEX, id, null));
// }
// IList<Object> hardRefsToRootCacheValues = RootCache.GetObjects(orisToRevert, CacheDirective.CacheValueResult | CacheDirective.ReturnMisses);
// for (int a = orisToRevert.Count; a-- > 0; )
// {
// if (hardRefsToRootCacheValues[a] == null)
// {
// // Object could not be loaded/retrieved any more. So the ori refers to an invalid object
// // We can not revert invalid objects and currently ignore them. They will raise exceptions if they will
// // be tried to persist in a merge process any time in the future
// orisToRevert.RemoveAt(a);
// }
// }
// // We do nothing with the hardRef-list from the RootCache. It is only necessary to keep track of the instance reference on the stack
// // To prohibit GC any potential WeakReferences in the meantime....
// GuiThreadHelper.InvokeInGuiAndWait(delegate()
// {
// IProcessResumeItem processResumeItem = WaitEventToResume();
// try
// {
// bool oldCacheModificationValue = CacheModification.IsActive;
// CacheModification.IsActive = true;
// bool oldFailEarlyModeActive = AbstractCache<Object>.FailEarlyModeActive;
// AbstractCache<Object>.FailEarlyModeActive = true;
// try
// {
// IList<IWritableCache> firstLevelCaches = FirstLevelCacheManager.SelectFirstLevelCaches();
// IList<Object> hardRefsToRootCacheValuesHere = hardRefsToRootCacheValues;
// foreach (IWritableCache firstLevelCache in firstLevelCaches)
// {
// IList<Object> persistedObjectsInThisCache = firstLevelCache.GetObjects(orisToRevert, CacheDirective.FailEarly);
// for (int a = persistedObjectsInThisCache.Count; a-- > 0; )
// {
// Object persistedObjectInThisCache = persistedObjectsInThisCache[a];
// if (!persistedObjectsToRevert.Contains(persistedObjectInThisCache))
// {
// continue;
// }
// RootCache.ApplyValues(persistedObjectInThisCache, (ICacheIntern)firstLevelCache);
// }
// }
// for (int a = objectsToRevert.Count; a-- > 0; )
// {
// Object objectToRevert = objectsToRevert[a];
// if (objectToRevert is IDataObject)
// {
// // Objects which are specified to be reverted loose their delete flag
// ((IDataObject)objectToRevert).ToBeDeleted = false;
// }
// }
// }
// finally
// {
// AbstractCache<Object>.FailEarlyModeActive = oldFailEarlyModeActive;
// CacheModification.IsActive = oldCacheModificationValue;
// }
// }
// finally
// {
// if (processResumeItem != null)
// {
// processResumeItem.ResumeProcessingFinished();
// processResumeItem = null;
// }
// }
// });
// if (directObjectDeletes.Count > 0)
// {
// DataChangeEvent dataChange = DataChangeEvent.Create(0, 0, 0);
// dataChange.Deletes = directObjectDeletes;
// EventDispatcher.DispatchEvent(dataChange, DateTime.Now, -1);
// }
// success1 = true;
// }
// finally
// {
// if (revertChangesFinishedCallback != null)
// {
// revertChangesFinishedCallback.Invoke(success1);
// }
// }
//});
// Here comes the part from Ambeth 0.129:
GuiThreadHelper.InvokeOutOfGui(delegate()
{
bool success1 = false;
bool?success2 = null;
bool?success3 = null;
try
{
IList <IDataChangeEntry> directObjectDeletes = new List <IDataChangeEntry>();
List <IObjRef> objRefs = new List <IObjRef>();
List <ValueHolderRef> valueHolderKeys = new List <ValueHolderRef>();
IList <Object> initializedObjects = MergeController.ScanForInitializedObjects(objectsToRevert, true, null, objRefs, valueHolderKeys);
IList <IObjRef> orisToRevert = new List <IObjRef>();
ISet <Object> persistedObjectsToRevert = new IdentityHashSet <Object>();
for (int a = initializedObjects.Count; a-- > 0;)
{
Object objectToRevert = initializedObjects[a];
IEntityMetaData metaData = ((IEntityMetaDataHolder)objectToRevert).Get__EntityMetaData();
Object id = metaData.IdMember.GetValue(objectToRevert, false);
if (id == null)
{
directObjectDeletes.Add(new DirectDataChangeEntry(objectToRevert));
continue;
}
persistedObjectsToRevert.Add(objectToRevert);
orisToRevert.Add(new ObjRef(metaData.EntityType, ObjRef.PRIMARY_KEY_INDEX, id, null));
}
IList <Object> hardRefsToRootCacheValues = RootCache.GetObjects(orisToRevert, CacheDirective.CacheValueResult | CacheDirective.ReturnMisses);
for (int a = orisToRevert.Count; a-- > 0;)
{
if (hardRefsToRootCacheValues[a] == null)
{
// Object could not be loaded/retrieved any more. So the ori refers to an invalid object
// We can not revert invalid objects and currently ignore them. They will raise exceptions if they will
// be tried to persist in a merge process any time in the future
orisToRevert.RemoveAt(a);
}
}
// We do nothing with the hardRef-list from the RootCache. It is only necessary to keep track of the instance reference on the stack
// To prohibit GC any potential WeakReferences in the meantime....
success2 = false;
GuiThreadHelper.InvokeInGui(delegate(Object state)
{
WaitEventToResume(delegate(IProcessResumeItem processResumeItem)
{
try
{
bool oldCacheModificationValue = CacheModification.Active;
CacheModification.Active = true;
bool oldFailEarlyModeActive = AbstractCache.FailInCacheHierarchyModeActive;
AbstractCache.FailInCacheHierarchyModeActive = true;
try
{
IList <IWritableCache> firstLevelCaches = FirstLevelCacheManager.SelectFirstLevelCaches();
IList <Object> hardRefsToRootCacheValuesHere = hardRefsToRootCacheValues;
foreach (IWritableCache firstLevelCache in firstLevelCaches)
{
IList <Object> persistedObjectsInThisCache = firstLevelCache.GetObjects(orisToRevert, CacheDirective.FailEarly);
for (int a = persistedObjectsInThisCache.Count; a-- > 0;)
{
Object persistedObjectInThisCache = persistedObjectsInThisCache[a];
if (!persistedObjectsToRevert.Contains(persistedObjectInThisCache))
{
continue;
}
RootCache.ApplyValues(persistedObjectInThisCache, (ICacheIntern)firstLevelCache, null);
}
}
for (int a = objectsToRevert.Count; a-- > 0;)
{
Object objectToRevert = objectsToRevert[a];
if (objectToRevert is IDataObject)
{
// Objects which are specified to be reverted loose their flags
((IDataObject)objectToRevert).ToBeDeleted = false;
}
}
if (directObjectDeletes.Count == 0)
{
success2 = true;
return;
}
}
finally
{
AbstractCache.FailInCacheHierarchyModeActive = oldFailEarlyModeActive;
CacheModification.Active = oldCacheModificationValue;
}
}
finally
{
if (processResumeItem != null)
{
processResumeItem.ResumeProcessingFinished();
}
}
success3 = false;
GuiThreadHelper.InvokeOutOfGui(delegate()
{
try
{
DataChangeEvent dataChange = DataChangeEvent.Create(0, 0, 0);
dataChange.Deletes = directObjectDeletes;
EventDispatcher.DispatchEvent(dataChange, DateTime.Now, -1);
success3 = true;
}
finally
{
if (revertChangesFinishedCallback != null)
{
revertChangesFinishedCallback.Invoke(success3.Value);
}
}
});
success2 = true;
}, delegate(Exception e)
{
if (revertChangesFinishedCallback != null && success3 == null)
{
revertChangesFinishedCallback.Invoke(success2.Value);
}
});
}, null);
success1 = true;
}
finally
{
if (revertChangesFinishedCallback != null && success2 == null && success3 == null)
{
revertChangesFinishedCallback.Invoke(success1);
}
}
});
}
}
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);
}