private bool CanDeserialize(IList <INodeData> nodes, out Type type, out Metadata metadata, DeserializationContext context)
{
if (nodes[0].Type != NodeType.OBJECT)
{
type = null;
metadata = null;
return(false);
}
INodeData typeNode = nodes[0].SubNodes[1].SubNodes.FirstOrDefault(n => n.Type == NodeType.METADATA);
CustomSerializer serializer = new CustomSerializer(typeof(Metadata));
metadata = (Metadata)serializer.ReadObjectData(new List <INodeData>()
{
typeNode
}, context, -1);
if (!CustomType.IsAssignableFrom(metadata.Type))
{
type = metadata.Type;
return(false);
}
type = metadata.Type;
return(true);
}
object ISerializerInternal.DeserializeInternal(string data, DeserializationContext context)
{
if (data.Equals(EmptySymbol))
{
return(EmptyValue);
}
MainParser parser = new MainParser();
IList <INodeData> list;
parser.ExtractNodeData(data, out list);
// get the metadata
List <INodeData> validNodes = list[0].SubNodes[1].SubNodes.Where(n => !NodeUtils.IgnoreOnDeserialization(n.Type)).ToList();
INodeData typeNode = list[0].SubNodes[1].SubNodes.FirstOrDefault(n => n.Type == NodeType.METADATA);
CustomSerializer serializer = SerializerUtils.MetadataSerializer;
Metadata metadata = (Metadata)serializer.ReadObjectData(new List <INodeData>()
{
typeNode
}, context, -1);
// check if the object is already in cache
// if that's the case then return it
if (context.TryGet(metadata.ReferenceTracker, out object cacheFound))
{
return(cacheFound);
}
// validate the node structure
if (!ValidateNodes(list))
{
return(EmptyValue);
}
// else do the normal deserialization
object result = ReadObjectData(list, context, metadata.ReferenceTracker);
return(result);
}