/// <inheritdoc />
public override bool ProcessDeserializedData(AssetPropertyGraphContainer graphContainer, object targetRootObject, Type targetMemberType, ref object data, bool isRootDataObjectReference, AssetId?sourceId, YamlAssetMetadata <OverrideType> overrides, YamlAssetPath basePath)
{
var asset = (AssetCompositeHierarchy <TAssetPartDesign, TAssetPart>)targetRootObject;
var hierarchy = data as AssetCompositeHierarchyData <TAssetPartDesign, TAssetPart>;
if (hierarchy == null)
{
return(false);
}
// Create a temporary asset to host the hierarchy to paste, so we have a property graph to manipulate it.
var tempAsset = (AssetCompositeHierarchy <TAssetPartDesign, TAssetPart>)Activator.CreateInstance(asset.GetType());
tempAsset.Hierarchy = hierarchy;
// Use temporary containers so that any created nodes are discarded after the processing.
var tempNodeContainer = new AssetNodeContainer {
NodeBuilder = { NodeFactory = new AssetNodeFactory() }
};
var definition = AssetQuantumRegistry.GetDefinition(asset.GetType());
var rootNode = tempNodeContainer.GetOrCreateNode(tempAsset);
// If different asset or if at least one part already exists, create a custom clone.
if (asset.Id != sourceId || hierarchy.Parts.Values.Any(part => asset.ContainsPart(part.Part.Id)))
{
// Clone again to create new ids for any IIdentifiable, but keep references to external object intact.
var cloneExternalReferences = ExternalReferenceCollector.GetExternalReferences(definition, rootNode);
hierarchy = AssetCloner.Clone(hierarchy, AssetClonerFlags.GenerateNewIdsForIdentifiableObjects, cloneExternalReferences, out var idRemapping);
// Remap indices of parts in Hierarchy.Part
AssetCloningHelper.RemapIdentifiablePaths(overrides, idRemapping, basePath);
// Make new base instances ids in case the part are inherited.
AssetPartsAnalysis.GenerateNewBaseInstanceIds(hierarchy);
// Update the temporary asset with this cloned hierarchy.
rootNode[nameof(AssetCompositeHierarchy <TAssetPartDesign, TAssetPart> .Hierarchy)].Update(hierarchy);
}
// Collect all referenceable objects from the target asset (where we're pasting)
var targetPropertyGraph = graphContainer.TryGetGraph(asset.Id);
var referenceableObjects = IdentifiableObjectCollector.Collect(targetPropertyGraph.Definition, targetPropertyGraph.RootNode);
// Replace references in the hierarchy being pasted by the real objects from the target asset.
var externalReferences = new HashSet <Guid>(ExternalReferenceCollector.GetExternalReferences(definition, rootNode).Select(x => x.Id));
var visitor = new ObjectReferencePathGenerator(definition)
{
ShouldOutputReference = x => externalReferences.Contains(x)
};
visitor.Visit(rootNode);
FixupObjectReferences.FixupReferences(tempAsset, visitor.Result, referenceableObjects, true);
data = hierarchy;
return(true);
}
protected void ApplyMetadata(SessionTemplateGeneratorParameters parameters)
{
// Create graphs for all assets in the session
EnsureGraphs(parameters);
// Then apply metadata from each asset item to the graph
foreach (var package in parameters.Session.LocalPackages)
{
foreach (var asset in package.Assets)
{
var graph = graphContainer.TryGetGraph(asset.Id) ?? graphContainer.InitializeAsset(asset, parameters.Logger);
var overrides = asset.YamlMetadata.RetrieveMetadata(AssetObjectSerializerBackend.OverrideDictionaryKey);
if (graph != null && overrides != null)
{
graph.RefreshBase();
AssetPropertyGraph.ApplyOverrides(graph.RootNode, overrides);
}
}
}
}
/// <inheritdoc />
public override bool ProcessDeserializedData(AssetPropertyGraphContainer graphContainer, object targetRootObject, Type targetMemberType, ref object data, bool isRootDataObjectReference, AssetId?sourceId, YamlAssetMetadata <OverrideType> overrides, YamlAssetPath basePath)
{
if (targetRootObject == null)
{
throw new ArgumentNullException(nameof(targetRootObject));
}
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
var asset = (Asset)targetRootObject;
var targetPropertyGraph = graphContainer.TryGetGraph(asset.Id);
// We use a container object in case the data itself is an object reference
var container = isRootDataObjectReference ? new FixupContainer {
Data = data
} : data;
var rootNode = targetPropertyGraph.Container.NodeContainer.GetOrCreateNode(container);
var externalReferences = ExternalReferenceCollector.GetExternalReferences(targetPropertyGraph.Definition, rootNode);
try
{
// Clone to create new ids for any IIdentifiable, except passed external references that will be maintained
Dictionary <Guid, Guid> idRemapping;
data = AssetCloner.Clone <object>(data, AssetClonerFlags.GenerateNewIdsForIdentifiableObjects, externalReferences, out idRemapping);
}
// TODO: have a proper exception type for serialization failure
catch (Exception)
{
// Note: this can fail if the type doesn't have a binary serializer.
return(false);
}
var targetTypeDescriptor = TypeDescriptorFactory.Default.Find(targetMemberType);
bool result;
switch (targetTypeDescriptor.Category)
{
case DescriptorCategory.Collection:
result = ConvertForCollection((CollectionDescriptor)targetTypeDescriptor, ref data);
break;
case DescriptorCategory.Dictionary:
result = ConvertForDictionary((DictionaryDescriptor)targetTypeDescriptor, ref data);
break;
case DescriptorCategory.Primitive:
case DescriptorCategory.Object:
case DescriptorCategory.NotSupportedObject:
case DescriptorCategory.Nullable:
result = ConvertForProperty(targetTypeDescriptor.Type, ref data);
break;
case DescriptorCategory.Array:
case DescriptorCategory.Custom:
throw new NotSupportedException();
default:
throw new ArgumentOutOfRangeException();
}
if (!result)
{
return(false);
}
// Collect all referenceable objects from the target asset (where we're pasting)
var referenceableObjects = IdentifiableObjectCollector.Collect(targetPropertyGraph.Definition, targetPropertyGraph.RootNode);
// We use a container object in case the data itself is an object reference
container = isRootDataObjectReference ? new FixupContainer {
Data = data
} : data;
rootNode = targetPropertyGraph.Container.NodeContainer.GetOrCreateNode(container);
// Generate YAML paths for the external reference so we can go through the normal deserialization fixup method.
var externalReferenceIds = new HashSet <Guid>(externalReferences.Select(x => x.Id));
var visitor = new ObjectReferencePathGenerator(targetPropertyGraph.Definition)
{
ShouldOutputReference = x => externalReferenceIds.Contains(x)
};
visitor.Visit(rootNode);
// Fixup external references
FixupObjectReferences.FixupReferences(container, visitor.Result, referenceableObjects, true);
data = (container as FixupContainer)?.Data ?? data;
return(true);
}
