public ISet <IObjRef> lookForIntermediateDeletes()
{
CHashSet <IObjRef> intermediateDeletes = new CHashSet <IObjRef>();
// Hold cache values as hard ref to prohibit cache loss due to GC
IList <IObjRef> hardRefRequest = hardRefObjRefsToLoad.ToList();
IList <Object> hardRefResult = rootCache.GetObjects(hardRefRequest, cacheValueResultAndReturnMissesSet);
for (int a = hardRefResult.Count; a-- > 0;)
{
Object hardRef = hardRefResult[a];
if (hardRef != null)
{
continue;
}
// Objects are marked as UPDATED in the DCE, but could not be newly retrieved from the server
// This occurs if a fast DELETE event on the server happened but has not been processed, yet
IObjRef hardRefObjRefToLoad = hardRefRequest[a];
intermediateDeletes.Add(hardRefObjRefToLoad);
}
this.privilegedHardRefResult = hardRefResult;
RemoveNotFoundObjRefs(intermediateDeletes.ToArray());
return(intermediateDeletes);
}
protected void ChangeSecondLevelCacheIntern(CacheDependencyNode node, CacheDirective cacheDirective)
{
IRootCache rootCache = node.rootCache;
HashMap <IObjRef, CacheValueAndPrivilege> objRefToLoadContainerDict = node.objRefToCacheValueMap;
CHashSet <IObjRef> objRefsToLoad = new CHashSet <IObjRef>(node.objRefsToLoad);
if (node.cacheChangeItems != null)
{
foreach (CacheChangeItem cci in node.cacheChangeItems)
{
if (cci == null)
{
continue;
}
objRefsToLoad.AddAll(cci.UpdatedObjRefs);
}
}
IList <IObjRef> objRefs = objRefsToLoad.ToList();
IList <Object> refreshResult = rootCache.GetObjects(objRefs, cacheDirective);
IPrivilege[] privileges = null;
if (SecurityActivation != null && PrivilegeProvider != null && SecurityActivation.FilterActivated)
{
privileges = PrivilegeProvider.GetPrivilegesByObjRef(objRefs).GetPrivileges();
}
for (int a = refreshResult.Count; a-- > 0;)
{
RootCacheValue cacheValue = (RootCacheValue)refreshResult[a];
if (cacheValue == null)
{
continue;
}
objRefToLoadContainerDict.Put(objRefs[a], new CacheValueAndPrivilege(cacheValue, privileges != null ? privileges[a] : null));
}
CheckCascadeRefreshNeeded(node);
CHashSet <IObjRef> cascadeRefreshObjRefsSet = node.cascadeRefreshObjRefsSet;
CHashSet <IObjRelation> cascadeRefreshObjRelationsSet = node.cascadeRefreshObjRelationsSet;
if (cascadeRefreshObjRelationsSet.Count > 0)
{
IList <IObjRelationResult> relationsResult = rootCache.GetObjRelations(cascadeRefreshObjRelationsSet.ToList(), cacheDirective);
for (int a = relationsResult.Count; a-- > 0;)
{
IObjRelationResult relationResult = relationsResult[a];
cascadeRefreshObjRefsSet.AddAll(relationResult.Relations);
}
// apply gathered information of unknown relations to the rootCache
rootCache.Put(relationsResult);
}
if (cascadeRefreshObjRefsSet.Count > 0)
{
IList <IObjRef> cascadeRefreshObjRefsSetList = cascadeRefreshObjRefsSet.ToList();
refreshResult = rootCache.GetObjects(cascadeRefreshObjRefsSetList, cacheDirective);
}
List <CacheDependencyNode> childNodes = node.childNodes;
for (int a = childNodes.Count; a-- > 0;)
{
ChangeSecondLevelCacheIntern(childNodes[a], failInCacheHierarchyAndCacheValueResultAndReturnMissesSet);
}
}
protected void DataChangedIntern(IDataChange dataChange, IList <Object> pausedEventTargets, IProcessResumeItem processResumeItem, CacheDependencyNode rootNode)
{
try
{
bool isLocalSource = dataChange.IsLocalSource;
IList <IDataChangeEntry> deletes = dataChange.Deletes;
IList <IDataChangeEntry> updates = dataChange.Updates;
IList <IDataChangeEntry> inserts = dataChange.Inserts;
CHashSet <Type> occuringTypes = new CHashSet <Type>();
CHashSet <IObjRef> deletesSet = new CHashSet <IObjRef>();
CHashSet <Type> directRelatingTypes = new CHashSet <Type>();
bool acquirementSuccessful = rootNode.rootCache.AcquireHardRefTLIfNotAlready();
try
{
for (int a = deletes.Count; a-- > 0;)
{
IDataChangeEntry deleteEntry = deletes[a];
Type entityType = deleteEntry.EntityType;
occuringTypes.Add(entityType);
if (deleteEntry is DirectDataChangeEntry)
{
// Ignore delete entries of unpersisted objects here
continue;
}
ObjRef tempORI = new ObjRef(entityType, deleteEntry.IdNameIndex, deleteEntry.Id, deleteEntry.Version);
deletesSet.Add(tempORI);
}
// Remove items from the cache only if they are really deleted/updates by a remote event
// And not 'simulated' by a local source
bool cleanupSecondLevelCaches = false;
if (pausedEventTargets != null && (deletes.Count > 0 || updates.Count > 0) && !isLocalSource)
{
cleanupSecondLevelCaches = true;
}
else if (updates.Count > 0)
{
for (int a = updates.Count; a-- > 0;)
{
IDataChangeEntry updateEntry = updates[a];
Type entityType = updateEntry.EntityType;
occuringTypes.Add(entityType);
}
}
for (int a = inserts.Count; a-- > 0;)
{
IDataChangeEntry insertEntry = inserts[a];
Type entityType = insertEntry.EntityType;
occuringTypes.Add(entityType);
}
EnsureMetaDataIsLoaded(occuringTypes, directRelatingTypes);
if (cleanupSecondLevelCaches)
{
CleanupSecondLevelCaches(rootNode, deletesSet.ToList(), updates, occuringTypes);
}
BuildCacheChangeItems(rootNode, dataChange);
rootNode.AggregateAllCascadedObjRefs();
ISet <IObjRef> intermediateDeletes = rootNode.lookForIntermediateDeletes();
ChangeSecondLevelCache(rootNode);
if (rootNode.IsPendingChangeOnAnyChildCache())
{
GuiThreadHelper.InvokeInGuiAndWait(delegate()
{
bool oldFailEarlyModeActive = AbstractCache.FailInCacheHierarchyModeActive;
AbstractCache.FailInCacheHierarchyModeActive = true;
try
{
ChangeFirstLevelCaches(rootNode, intermediateDeletes);
}
finally
{
AbstractCache.FailInCacheHierarchyModeActive = oldFailEarlyModeActive;
}
});
}
}
finally
{
rootNode.rootCache.ClearHardRefs(acquirementSuccessful);
}
}
finally
{
if (processResumeItem != null)
{
processResumeItem.ResumeProcessingFinished();
}
}
}