protected bool EqualsPUI(CUDResultDiff cudResultDiff, IPrimitiveUpdateItem left, IPrimitiveUpdateItem right)
{
if (Object.Equals(left.NewValue, right.NewValue))
{
return(true);
}
if (!cudResultDiff.doFullDiff)
{
return(false);
}
CreateOrUpdateContainerBuild containerBuild = cudResultDiff.UpdateContainerBuild();
containerBuild.AddPrimitive(right);
return(false);
}
public ICUDResult DiffCUDResult(ICUDResult left, ICUDResult right)
{
CUDResultDiff diff = new CUDResultDiff(left, right, true, CudResultHelper, EntityMetaDataProvider);
EqualsCUDResult(diff);
if (!diff.HasChanges())
{
return(null); // null means empty diff
}
IList <IChangeContainer> diffChanges = diff.diffChanges;
for (int a = diffChanges.Count; a-- > 0;)
{
IChangeContainer changeContainer = diffChanges[a];
if (!(changeContainer is CreateOrUpdateContainerBuild))
{
continue;
}
diffChanges[a] = ((CreateOrUpdateContainerBuild)changeContainer).Build();
}
return(new CUDResult(diffChanges, diff.originalRefs));
}
protected bool EqualsRUI(CUDResultDiff cudResultDiff, IRelationUpdateItem left, IRelationUpdateItem right)
{
// we do NOT have to check each relational ObjRef because IF an objRef is in the scope it must not be removed afterwards
// so we know by design that the arrays can only grow
try
{
IObjRef[] leftORIs = left.AddedORIs;
IObjRef[] rightORIs = right.AddedORIs;
if (leftORIs == null)
{
if (rightORIs != null)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
RelationUpdateItemBuild relationBuild = cudResultDiff.UpdateRelationBuild();
relationBuild.AddObjRefs(rightORIs);
}
}
else if (rightORIs == null)
{
throw new Exception("Must never happen");
}
else if (leftORIs.Length != rightORIs.Length)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
throw new Exception("Not yet implemented");
}
leftORIs = left.RemovedORIs;
rightORIs = right.RemovedORIs;
if (leftORIs == null)
{
if (rightORIs != null)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
RelationUpdateItemBuild relationBuild = cudResultDiff.UpdateRelationBuild();
relationBuild.RemoveObjRefs(rightORIs);
}
}
else if (rightORIs == null)
{
throw new Exception("Must never happen");
}
else if (leftORIs.Length != rightORIs.Length)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
throw new Exception("Not yet implemented");
}
return(true);
}
finally
{
cudResultDiff.relationBuild = null;
}
}
protected bool EqualsRUIs(CUDResultDiff cudResultDiff, IRelationUpdateItem[] left, IRelationUpdateItem[] right)
{
if (left == null || left.Length == 0)
{
if (right == null || right.Length == 0)
{
return(true);
}
if (cudResultDiff.doFullDiff)
{
CreateOrUpdateContainerBuild containerBuild = cudResultDiff.UpdateContainerBuild();
foreach (IRelationUpdateItem rightRui in right)
{
containerBuild.AddRelation(rightRui);
}
}
return(false);
}
if (right == null || right.Length == 0)
{
throw new Exception("Must never happen");
}
if (left.Length != right.Length)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
int leftIndex = left.Length - 1;
for (int rightIndex = right.Length; rightIndex-- > 0;)
{
IRelationUpdateItem leftRui = leftIndex >= 0 ? left[leftIndex] : null;
IRelationUpdateItem rightRui = right[rightIndex];
if (leftRui == null || !leftRui.MemberName.Equals(rightRui.MemberName))
{
CreateOrUpdateContainerBuild containerBuild = cudResultDiff.UpdateContainerBuild();
containerBuild.AddRelation(rightRui);
continue;
}
if (!EqualsRUI(cudResultDiff, leftRui, rightRui))
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
}
leftIndex--;
}
return(false);
}
bool isEqual = true;
for (int a = left.Length; a-- > 0;)
{
IRelationUpdateItem rightPui = right[a];
if (!EqualsRUI(cudResultDiff, left[a], rightPui))
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
isEqual = false;
}
}
return(isEqual);
}
protected bool EqualsCUDResult(CUDResultDiff cudResultDiff)
{
ICUDResult left = cudResultDiff.left;
ICUDResult right = cudResultDiff.right;
IList <Object> leftRefs = left.GetOriginalRefs();
IList <Object> rightRefs = right.GetOriginalRefs();
if (leftRefs.Count != rightRefs.Count)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
}
IList <IChangeContainer> leftChanges = left.AllChanges;
IList <IChangeContainer> rightChanges = right.AllChanges;
IdentityHashMap <Object, int?> rightMap = IdentityHashMap <Object, int?> .Create(rightRefs.Count);
for (int a = rightRefs.Count; a-- > 0;)
{
rightMap.Put(rightRefs[a], a);
}
for (int a = leftRefs.Count; a-- > 0;)
{
Object leftEntity = leftRefs[a];
int? rightIndex = rightMap.Remove(leftEntity);
if (!rightIndex.HasValue)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
cudResultDiff.diffChanges.Add(leftChanges[a]);
cudResultDiff.originalRefs.Add(leftEntity);
continue;
}
if (!EqualsChangeContainer(cudResultDiff, leftChanges[a], rightChanges[rightIndex.Value]))
{
if (!cudResultDiff.doFullDiff)
{
if (cudResultDiff.containerBuild != null)
{
throw new Exception();
}
return(false);
}
cudResultDiff.diffChanges.Add(cudResultDiff.containerBuild);
cudResultDiff.originalRefs.Add(rightRefs[rightIndex.Value]);
cudResultDiff.containerBuild = null;
}
else if (cudResultDiff.containerBuild != null)
{
throw new Exception();
}
}
if (rightMap.Count == 0)
{
return(true);
}
foreach (Entry <Object, int> entry in rightMap)
{
Object rightRef = entry.Key;
int rightIndex = entry.Value;
IChangeContainer rightChange = rightChanges[rightIndex];
cudResultDiff.diffChanges.Add(rightChange);
cudResultDiff.originalRefs.Add(rightRef);
}
return(false);
}
public bool EqualsCUDResult(ICUDResult left, ICUDResult right)
{
CUDResultDiff diff = new CUDResultDiff(left, right, false, CudResultHelper, EntityMetaDataProvider);
return(EqualsCUDResult(diff));
}
protected bool EqualsChangeContainer(CUDResultDiff cudResultDiff, IChangeContainer left, IChangeContainer right)
{
if (left.GetType() != right.GetType())
{
throw new Exception("Must never happen");
}
cudResultDiff.SetLeftContainer(left);
try
{
if (left is CreateContainer)
{
CreateContainer leftCreate = (CreateContainer)left;
CreateContainer rightCreate = (CreateContainer)right;
bool isEqual = EqualsPUIs(cudResultDiff, leftCreate.Primitives, rightCreate.Primitives);
if (!isEqual)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
}
isEqual &= EqualsRUIs(cudResultDiff, leftCreate.Relations, rightCreate.Relations);
if (!isEqual)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
}
return(isEqual);
}
if (left is UpdateContainer)
{
UpdateContainer leftUpdate = (UpdateContainer)left;
UpdateContainer rightUpdate = (UpdateContainer)right;
bool isEqual = EqualsPUIs(cudResultDiff, leftUpdate.Primitives, rightUpdate.Primitives);
if (!isEqual)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
}
isEqual &= EqualsRUIs(cudResultDiff, leftUpdate.Relations, rightUpdate.Relations);
if (!isEqual)
{
if (!cudResultDiff.doFullDiff)
{
return(false);
}
}
return(isEqual);
}
// a DeleteContainer is only compared by the reference. But we know that this is already equal since we entered this method
return(true);
}
finally
{
cudResultDiff.SetLeftContainer(null);
}
}
