/// <inheritdoc />
public override void FixupPartReferences(bool clearMissingReferences = true)
{
base.FixupPartReferences(clearMissingReferences);
var visitor = new AssetCompositePartReferenceCollector();
visitor.VisitAsset(this);
var references = visitor.Result;
// Reverse the list, so that we can still properly update everything
// (i.e. if we have a[0], a[1], a[1].Test, we have to do it from back to front to be valid at each step)
// TODO: I don't think this is needed. Find a proper example or remove it.
references.Reverse();
foreach (var reference in references)
{
var realPart = ResolvePartReference(reference.AssetPart);
if (realPart != reference.AssetPart)
{
if (realPart != null || clearMissingReferences)
{
reference.Path.Apply(this, MemberPathAction.ValueSet, realPart);
}
}
}
}
/// <summary>
/// Clones a sub-hierarchy of this asset.
/// </summary>
/// <param name="sourceRootIds">The ids that are the roots of the sub-hierarchies to clone.</param>
/// <param name="cleanReference">If true, any reference to a part external to the cloned hierarchy will be set to null.</param>
/// <param name="generateNewIdsForIdentifiableObjects">If true, the cloned objects that implement <see cref="IIdentifiable"/> will have new ids.</param>
/// <param name="idRemapping">A dictionary containing the remapping of <see cref="IIdentifiable.Id"/> if <see cref="AssetClonerFlags.GenerateNewIdsForIdentifiableObjects"/> has been passed to the cloner.</param>
/// <returns>A <see cref="AssetCompositeHierarchyData{TAssetPartDesign, TAssetPart}"/> corresponding to the cloned parts.</returns>
/// <remarks>The parts passed to this methods must be independent in the hierarchy.</remarks>
public AssetCompositeHierarchyData <TAssetPartDesign, TAssetPart> CloneSubHierarchies(IEnumerable <Guid> sourceRootIds, bool cleanReference, bool generateNewIdsForIdentifiableObjects, bool generateNewBaseInstanceIds, out Dictionary <Guid, Guid> idRemapping)
{
// Note: Instead of copying the whole asset (with its potentially big hierarchy),
// we first copy the asset only (without the hierarchy), then the sub-hierarchy to extract.
var subTreeHierarchy = new AssetCompositeHierarchyData <TAssetPartDesign, TAssetPart>();
foreach (var rootId in sourceRootIds)
{
if (!Hierarchy.Parts.ContainsKey(rootId))
{
throw new ArgumentException(@"The source root parts must be parts of this asset.", nameof(sourceRootIds));
}
subTreeHierarchy.RootPartIds.Add(rootId);
subTreeHierarchy.Parts.Add(Hierarchy.Parts[rootId]);
foreach (var subTreePart in EnumerateChildParts(Hierarchy.Parts[rootId].Part, true))
{
subTreeHierarchy.Parts.Add(Hierarchy.Parts[subTreePart.Id]);
}
}
// clone the parts of the sub-tree
var clonedHierarchy = AssetCloner.Clone(subTreeHierarchy, generateNewIdsForIdentifiableObjects ? AssetClonerFlags.GenerateNewIdsForIdentifiableObjects : AssetClonerFlags.None, out idRemapping);
// Remap ids from the root id collection to the new ids generated during cloning
AssetPartsAnalysis.RemapPartsId(clonedHierarchy, idRemapping);
foreach (var rootEntity in clonedHierarchy.RootPartIds)
{
PostClonePart(clonedHierarchy.Parts[rootEntity].Part);
}
if (cleanReference)
{
// set to null reference outside of the sub-tree
var tempAsset = (AssetCompositeHierarchy <TAssetPartDesign, TAssetPart>)Activator.CreateInstance(GetType());
tempAsset.Hierarchy = clonedHierarchy;
tempAsset.FixupPartReferences();
}
else
{
// restore initial ids for reference outside of the subtree, so they can be fixed up later.
var tempAsset = (AssetCompositeHierarchy <TAssetPartDesign, TAssetPart>)Activator.CreateInstance(GetType());
tempAsset.Hierarchy = clonedHierarchy;
var visitor = new AssetCompositePartReferenceCollector();
visitor.VisitAsset(tempAsset);
var references = visitor.Result;
var revertedIdMapping = idRemapping.ToDictionary(x => x.Value, x => x.Key);
foreach (var referencedPart in references.Select(x => x.AssetPart).OfType <IIdentifiable>())
{
var realPart = tempAsset.ResolvePartReference(referencedPart);
if (realPart == null)
{
referencedPart.Id = revertedIdMapping[referencedPart.Id];
}
}
}
if (generateNewBaseInstanceIds)
{
AssetPartsAnalysis.GenerateNewBaseInstanceIds(clonedHierarchy);
}
return(clonedHierarchy);
}
