public override void Serialize(ref T obj, ArchiveMode mode, SerializationStream stream)
{
var referenceSerialization = stream.Context.Get(ContentSerializerContext.SerializeAttachedReferenceProperty);
var contentSerializerContext = stream.Context.Get(ContentSerializerContext.ContentSerializerContextProperty);
if (contentSerializerContext != null)
{
if (mode == ArchiveMode.Serialize)
{
var contentReference = new ContentReference <T> {
Value = obj
};
int index = contentSerializerContext.AddContentReference(contentReference);
stream.Write(index);
}
else
{
int index = stream.ReadInt32();
var contentReference = contentSerializerContext.GetContentReference <T>(index);
obj = contentReference.Value;
if (obj == null)
{
// Check if already deserialized
var assetReference = contentSerializerContext.AssetManager.FindDeserializedObject(contentReference.Location, typeof(T));
if (assetReference != null)
{
obj = (T)assetReference.Object;
if (obj != null)
{
contentReference.Value = obj;
}
}
}
if (obj == null)
{
// First time, let's create it
obj = (T)AttachedReferenceManager.CreateSerializableVersion(typeof(T), contentReference.Id, contentReference.Location);
contentSerializerContext.AssetManager.RegisterDeserializedObject(contentReference.Location, obj);
contentReference.Value = obj;
}
}
}
else if (referenceSerialization == ContentSerializerContext.AttachedReferenceSerialization.AsNull)
{
if (mode == ArchiveMode.Deserialize)
{
obj = default(T);
}
}
else if (referenceSerialization == ContentSerializerContext.AttachedReferenceSerialization.AsSerializableVersion)
{
if (mode == ArchiveMode.Serialize)
{
// This case will happen when serializing build engine command hashes: we still want Location to still be written
var attachedReference = AttachedReferenceManager.GetAttachedReference(obj);
if (attachedReference == null || attachedReference.Url == null)
{
throw new InvalidOperationException("Error when serializing reference.");
}
// TODO: Do not use string
stream.Write(obj.GetType().AssemblyQualifiedName);
stream.Write(attachedReference.Id);
stream.Write(attachedReference.Url);
}
else
{
var type = Type.GetType(stream.ReadString());
var id = stream.Read <Guid>();
var url = stream.ReadString();
obj = (T)AttachedReferenceManager.CreateSerializableVersion(type, id, url);
}
}
else
{
// This case will happen when serializing build engine command hashes: we still want Location to still be written
if (mode == ArchiveMode.Serialize)
{
// This case will happen when serializing build engine command hashes: we still want Location to still be written
var attachedReference = AttachedReferenceManager.GetAttachedReference(obj);
if (attachedReference == null || attachedReference.Url == null)
{
throw new InvalidOperationException("Error when serializing reference.");
}
stream.Write(attachedReference.Url);
}
else
{
// No real case yet
throw new NotSupportedException();
}
}
}
public override void Serialize(ref T obj, ArchiveMode mode, SerializationStream stream)
{
var referenceSerialization = stream.Context.Get(ContentSerializerContext.SerializeAttachedReferenceProperty);
var contentSerializerContext = stream.Context.Get(ContentSerializerContext.ContentSerializerContextProperty);
if (contentSerializerContext != null)
{
if (mode == ArchiveMode.Serialize)
{
var contentReference = new ContentReference <T>(obj);
int index = contentSerializerContext.AddContentReference(contentReference);
stream.Write(index);
}
else
{
int index = stream.ReadInt32();
var contentReference = contentSerializerContext.GetContentReference <T>(index);
obj = contentReference.Value;
if (obj == null)
{
// Check if already deserialized
var assetReference = contentSerializerContext.ContentManager.FindDeserializedObject(contentReference.Location, typeof(T));
if (assetReference != null)
{
obj = (T)assetReference.Object;
if (obj != null)
{
contentReference.Value = obj;
}
}
}
if (obj == null && contentSerializerContext.LoadContentReferences)
{
var contentSerializer = cachedContentSerializer ?? (cachedContentSerializer = contentSerializerContext.ContentManager.Serializer.GetSerializer(null, typeof(T)));
if (contentSerializer == null)
{
// Need to read chunk header to know actual type (note that we can't cache it in cachedContentSerializer as it depends on content)
var chunkHeader = contentSerializerContext.ContentManager.ReadChunkHeader(contentReference.Location);
if (chunkHeader == null || (contentSerializer = contentSerializerContext.ContentManager.Serializer.GetSerializer(AssemblyRegistry.GetType(chunkHeader.Type), typeof(T))) == null)
{
throw new InvalidOperationException($"Could not find a valid content serializer for {typeof(T)} when loading {contentReference.Location}");
}
}
// First time, let's create it
if (contentSerializerContext.ContentManager.Exists(contentReference.Location))
{
obj = (T)contentSerializer.Construct(contentSerializerContext);
contentSerializerContext.ContentManager.RegisterDeserializedObject(contentReference.Location, obj);
contentReference.Value = obj;
}
}
}
}
else if (referenceSerialization == ContentSerializerContext.AttachedReferenceSerialization.AsNull)
{
if (mode == ArchiveMode.Deserialize)
{
obj = default(T);
}
}
else if (referenceSerialization == ContentSerializerContext.AttachedReferenceSerialization.AsSerializableVersion)
{
if (mode == ArchiveMode.Serialize)
{
// This case will happen when serializing build engine command hashes: we still want Location to still be written
var attachedReference = AttachedReferenceManager.GetAttachedReference(obj);
if (attachedReference?.Url == null)
{
throw new InvalidOperationException("Error when serializing reference.");
}
// TODO: Do not use string
stream.Write(obj.GetType().AssemblyQualifiedName);
stream.Write(attachedReference.Id);
stream.Write(attachedReference.Url);
}
else
{
var type = AssemblyRegistry.GetType(stream.ReadString());
var id = stream.Read <Guid>();
var url = stream.ReadString();
obj = (T)AttachedReferenceManager.CreateProxyObject(type, id, url);
}
}
else
{
// This case will happen when serializing build engine command hashes: we still want Location to still be written
if (mode == ArchiveMode.Serialize)
{
// This case will happen when serializing build engine command hashes: we still want Location to still be written
var attachedReference = AttachedReferenceManager.GetAttachedReference(obj);
if (attachedReference?.Url == null)
{
throw new InvalidOperationException("Error when serializing reference.");
}
stream.Write(attachedReference.Url);
}
else
{
// No real case yet
throw new NotSupportedException();
}
}
}