public override void Unregister(V extension, Type key)
{
Object writeLock = GetWriteLock();
lock (writeLock)
{
base.Unregister(extension, key);
ClassEntry <V> classEntry = CopyStructure();
LinkedHashMap <StrongKey <V>, List <DefEntry <V> > > definitionReverseMap = classEntry.definitionReverseMap;
List <DefEntry <V> > weakEntriesOfStrongType = definitionReverseMap.Remove(new StrongKey <V>(extension, key));
if (weakEntriesOfStrongType == null)
{
return;
}
LinkedHashMap <Type, Object> typeToDefEntryMap = classEntry.typeToDefEntryMap;
for (int a = weakEntriesOfStrongType.Count; a-- > 0;)
{
DefEntry <V> defEntry = weakEntriesOfStrongType[a];
Type registeredType = defEntry.type;
Object value = typeToDefEntryMap.Get(registeredType);
InterfaceFastList <DefEntry <V> > list = (InterfaceFastList <DefEntry <V> >)value;
list.Remove(defEntry);
if (list.Count == 0)
{
typeToDefEntryMap.Remove(registeredType);
}
TypeToDefEntryMapChanged(classEntry, registeredType);
}
this.classEntry = classEntry;
}
}
protected ClassEntry <V> CopyStructure()
{
ClassEntry <V> newClassEntry = new ClassEntry <V>();
LinkedHashMap <Type, Object> newTypeToDefEntryMap = newClassEntry.typeToDefEntryMap;
LinkedHashMap <StrongKey <V>, List <DefEntry <V> > > newDefinitionReverseMap = newClassEntry.definitionReverseMap;
IdentityHashMap <DefEntry <V>, DefEntry <V> > originalToCopyMap = new IdentityHashMap <DefEntry <V>, DefEntry <V> >();
{
foreach (Entry <Type, Object> entry in classEntry.typeToDefEntryMap)
{
Type key = entry.Key;
Object value = entry.Value;
if (Object.ReferenceEquals(value, alreadyHandled))
{
newTypeToDefEntryMap.Put(key, alreadyHandled);
}
else
{
InterfaceFastList <DefEntry <V> > list = (InterfaceFastList <DefEntry <V> >)value;
InterfaceFastList <DefEntry <V> > newList = new InterfaceFastList <DefEntry <V> >();
IListElem <DefEntry <V> > pointer = list.First;
while (pointer != null)
{
DefEntry <V> defEntry = pointer.ElemValue;
DefEntry <V> newDefEntry = new DefEntry <V>(defEntry.extension, defEntry.type, defEntry.distance);
originalToCopyMap.Put(defEntry, newDefEntry);
newList.PushLast(newDefEntry);
pointer = pointer.Next;
}
newTypeToDefEntryMap.Put(key, newList);
}
TypeToDefEntryMapChanged(newClassEntry, key);
}
}
foreach (Entry <StrongKey <V>, List <DefEntry <V> > > entry in classEntry.definitionReverseMap)
{
List <DefEntry <V> > defEntries = entry.Value;
List <DefEntry <V> > newDefEntries = new List <DefEntry <V> >(defEntries.Count);
for (int a = 0, size = defEntries.Count; a < size; a++)
{
DefEntry <V> newDefEntry = originalToCopyMap.Get(defEntries[a]);
if (newDefEntry == null)
{
throw new Exception("Must never happen");
}
newDefEntries.Add(newDefEntry);
}
newDefinitionReverseMap.Put(entry.Key, newDefEntries);
}
return(newClassEntry);
}
public void ClearWeakCache()
{
Object writeLock = GetWriteLock();
lock (writeLock)
{
ClassExtendableContainer <V> tempCC = new ClassExtendableContainer <V>("", "");
foreach (Entry <Type, Object> entry in this)
{
tempCC.Register((V)entry.Value, entry.Key);
}
this.classEntry = tempCC.classEntry;
}
}
public override void Register(V extension, Type key)
{
Object writeLock = GetWriteLock();
lock (writeLock)
{
base.Register(extension, key);
ClassEntry <V> classEntry = CopyStructure();
AppendRegistration(key, key, extension, 0, classEntry);
CheckToWeakRegisterExistingTypes(key, extension, classEntry);
CheckToWeakRegisterExistingExtensions(key, classEntry);
this.classEntry = classEntry;
}
}
protected bool CheckToWeakRegisterExistingTypes(Type type, V extension, ClassEntry <V> classEntry)
{
bool changesHappened = false;
foreach (Entry <Type, Object> entry in classEntry.typeToDefEntryMap)
{
Type existingRequestedType = entry.Key;
int priorityForExistingRequestedType = GetDistanceForType(existingRequestedType, type);
if (priorityForExistingRequestedType == NO_VALID_DISTANCE)
{
continue;
}
changesHappened |= AppendRegistration(type, existingRequestedType, extension, priorityForExistingRequestedType, classEntry);
}
return(changesHappened);
}
protected override void TypeToDefEntryMapChanged(ClassEntry <V> classEntry, Type key)
{
Object obj = classEntry.typeToDefEntryMap.Get(key);
if (obj == null)
{
classEntry.Remove(key);
return;
}
if (obj == alreadyHandled)
{
classEntry.Put(key, alreadyHandled);
return;
}
Object existingItem = classEntry.Get(key);
List <V> list = (List <V>)(existingItem == alreadyHandled ? null : existingItem);
if (list == null)
{
list = new List <V>();
classEntry.Put(key, list);
}
if (obj is DefEntry <V> )
{
V extension = ((DefEntry <V>)obj).extension;
if (!list.Contains(extension))
{
list.Add(extension);
}
return;
}
IListElem <DefEntry <V> > pointer = ((InterfaceFastList <DefEntry <V> >)obj).First;
while (pointer != null)
{
V extension = pointer.ElemValue.extension;
if (!list.Contains(extension))
{
list.Add(extension);
}
pointer = pointer.Next;
}
}
protected bool CheckToWeakRegisterExistingExtensions(Type type, ClassEntry <V> classEntry)
{
bool changesHappened = false;
foreach (Entry <StrongKey <V>, List <DefEntry <V> > > entry in classEntry.definitionReverseMap)
{
StrongKey <V> strongKey = entry.Key;
Type registeredStrongType = strongKey.strongType;
int distance = GetDistanceForType(type, registeredStrongType);
if (distance == NO_VALID_DISTANCE)
{
continue;
}
List <DefEntry <V> > defEntries = entry.Value;
for (int a = defEntries.Count; a-- > 0;)
{
DefEntry <V> defEntry = defEntries[a];
changesHappened |= AppendRegistration(registeredStrongType, type, defEntry.extension, distance, classEntry);
}
}
return(changesHappened);
}
public override V GetExtension(Type key)
{
if (key == null)
{
return(default(V));
}
Object extension = this.classEntry.Get(key);
if (extension == null)
{
Object writeLock = GetWriteLock();
lock (writeLock)
{
extension = this.classEntry.Get(key);
if (extension == null)
{
ClassEntry <V> classEntry = CopyStructure();
classEntry.Put(key, alreadyHandled);
classEntry.typeToDefEntryMap.Put(key, alreadyHandled);
CheckToWeakRegisterExistingExtensions(key, classEntry);
this.classEntry = classEntry;
extension = classEntry.Get(key);
if (extension == null)
{
return(default(V));
}
}
}
}
if (Object.ReferenceEquals(extension, alreadyHandled))
{
// Already tried
return(default(V));
}
return((V)extension);
}
protected virtual void TypeToDefEntryMapChanged(ClassEntry <V> classEntry, Type key)
{
Object obj = classEntry.typeToDefEntryMap.Get(key);
if (obj == null)
{
classEntry.Remove(key);
return;
}
if (obj == alreadyHandled)
{
classEntry.Put(key, alreadyHandled);
return;
}
if (obj is DefEntry <V> )
{
classEntry.Put(key, ((DefEntry <V>)obj).extension);
return;
}
DefEntry <V> firstDefEntry = ((InterfaceFastList <DefEntry <V> >)obj).First.ElemValue;
classEntry.Put(key, firstDefEntry.extension);
}
protected bool AppendRegistration(Type strongType, Type type, V extension, int distance, ClassEntry <V> classEntry)
{
LinkedHashMap <Type, Object> typeToDefEntryMap = classEntry.typeToDefEntryMap;
Object fastList = typeToDefEntryMap.Get(type);
if (fastList != null && !Object.ReferenceEquals(fastList, alreadyHandled))
{
IListElem <DefEntry <V> > pointer = ((InterfaceFastList <DefEntry <V> >)fastList).First;
while (pointer != null)
{
DefEntry <V> existingDefEntry = pointer.ElemValue;
if (Object.ReferenceEquals(existingDefEntry.extension, extension) && existingDefEntry.distance == distance)
{
// DefEntry already exists with same distance
return(false);
}
pointer = pointer.Next;
}
}
if (fastList == null || Object.ReferenceEquals(fastList, alreadyHandled))
{
fastList = new InterfaceFastList <DefEntry <V> >();
typeToDefEntryMap.Put(type, fastList);
}
DefEntry <V> defEntry = new DefEntry <V>(extension, type, distance);
LinkedHashMap <StrongKey <V>, List <DefEntry <V> > > definitionReverseMap = classEntry.definitionReverseMap;
StrongKey <V> strongKey = new StrongKey <V>(extension, strongType);
List <DefEntry <V> > typeEntries = definitionReverseMap.Get(strongKey);
if (typeEntries == null)
{
typeEntries = new List <DefEntry <V> >();
definitionReverseMap.Put(strongKey, typeEntries);
}
typeEntries.Add(defEntry);
InterfaceFastList <DefEntry <V> > .InsertOrdered((InterfaceFastList <DefEntry <V> >) fastList, defEntry);
TypeToDefEntryMapChanged(classEntry, type);
return(true);
}
