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Json de/serialization #15854

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a9e5db1
Json: Type binder and property name replacement
bendikberg Feb 18, 2025
c5663f1
Json: Use json serializer instead of json settings to keep the interm…
bendikberg Feb 18, 2025
a5f2112
Json: Update NodeReadConverter to use Binder
bendikberg Feb 18, 2025
312dab8
Json: Update WorkspaceReadConverter to use node dict for lookups. Ski…
bendikberg Feb 18, 2025
aa1e18c
Json: Bugfix for WorkspaceWriteConverter when serializing to JObject.
bendikberg Feb 18, 2025
1411589
Json: Deserialize WorkspaceModel with serializer.
bendikberg Feb 18, 2025
e8ceae8
Json: Use intermediate jobject in tests, rather than serializing then…
bendikberg Feb 18, 2025
2e1bf56
Json: Remove SerializeJObject
bendikberg Feb 19, 2025
d6686be
Merge branch 'master' into reope/performance-serialization
bendikberg Feb 24, 2025
beb5ecb
Json: Make lookup dictionary lazy
bendikberg Feb 24, 2025
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103 changes: 51 additions & 52 deletions src/DynamoCore/Graph/Workspaces/SerializationConverters.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -117,28 +117,28 @@ public override object ReadJson(JsonReader reader, Type objectType, object exist
{
NodeModel node = null;

String typeName = String.Empty;
String functionName = String.Empty;
String assemblyName = String.Empty;
Type type = null;
var functionName = string.Empty;

var obj = JObject.Load(reader);
Type type = null;
var rawTypeName = obj["$type"].Value<string>();
Debug.Assert(rawTypeName != null);

var rawTypeParts = rawTypeName.Split(',');
var typeName = rawTypeParts[0];
// we get the assembly name from the type string for the node model nodes.
var assemblyName = rawTypeParts.Length > 1 ? rawTypeParts[1].Trim() : string.Empty;

try
{
type = Type.GetType(obj["$type"].Value<string>());
typeName = obj["$type"].Value<string>().Split(',').FirstOrDefault();
// use the native Newtonsoft DefaultSerializationBinder to resolve types.
type = SerializationExtensions.Binder.BindToType(assemblyName, typeName);

if (typeName.Equals("Dynamo.Graph.Nodes.ZeroTouch.DSFunction"))
{
// If it is a zero touch node, then get the whole function name including the namespace.
functionName = obj["FunctionSignature"].Value<string>().Split('@').FirstOrDefault().Trim();
}
// we get the assembly name from the type string for the node model nodes.
else
{
assemblyName = obj["$type"].Value<string>().Split(',').Skip(1).FirstOrDefault().Trim();
}
}
catch(Exception e)
{
Expand All @@ -151,16 +151,12 @@ public override object ReadJson(JsonReader reader, Type objectType, object exist
// not be an issue during normal dynamo use but if it is we can enable this code.
if(type == null && this.isTestMode == true)
{
List<Assembly> resultList;

// This assemblyName does not usually contain version information...
assemblyName = obj["$type"].Value<string>().Split(',').Skip(1).FirstOrDefault().Trim();
if (assemblyName != null)
if (!string.IsNullOrWhiteSpace(assemblyName))
{
if(this.loadedAssemblies.TryGetValue(assemblyName, out resultList))
if (loadedAssemblies.TryGetValue(assemblyName, out var resultList))
{
var matchingTypes = resultList.Select(x => x.GetType(typeName)).ToList();
type = matchingTypes.FirstOrDefault();
type = resultList.Select(x => x.GetType(typeName)).FirstOrDefault();
}
}
}
Expand All @@ -169,30 +165,20 @@ public override object ReadJson(JsonReader reader, Type objectType, object exist
if (type == null)
{
// Attempt to resolve the type using `AlsoKnownAs`
var unresolvedName = obj["$type"].Value<string>().Split(',').FirstOrDefault();
Type newType;
nodeFactory.ResolveType(unresolvedName, out newType);

// If resolved update the type
if (newType != null)
if (nodeFactory.ResolveType(typeName, out var newType))
{
// If resolved update the type
type = newType;
}
}

// If the id is not a guid, makes a guid based on the id of the node
var guid = GuidUtility.tryParseOrCreateGuid(obj["Id"].Value<string>());

var replication = obj["Replication"].Value<string>();

var inPorts = obj["Inputs"].ToArray().Select(t => t.ToObject<PortModel>()).ToArray();
var outPorts = obj["Outputs"].ToArray().Select(t => t.ToObject<PortModel>()).ToArray();

var resolver = (IdReferenceResolver)serializer.ReferenceResolver;
string assemblyLocation = objectType.Assembly.Location;
var inPorts = obj["Inputs"].Select(t => t.ToObject<PortModel>()).ToArray();
var outPorts = obj["Outputs"].Select(t => t.ToObject<PortModel>()).ToArray();

bool remapPorts = true;

if (type == null)
{
// If type is still null at this point return a dummy node
Expand Down Expand Up @@ -283,11 +269,13 @@ public override object ReadJson(JsonReader reader, Type objectType, object exist

if (remapPorts)
{
var resolver = (IdReferenceResolver)serializer.ReferenceResolver;
RemapPorts(node, inPorts, outPorts, resolver, manager.AsLogger());
}


// Cannot set Lacing directly as property is protected
var replication = obj["Replication"].Value<string>();
node.UpdateValue(new UpdateValueParams("ArgumentLacing", replication));
node.GUID = guid;

Expand Down Expand Up @@ -504,30 +492,34 @@ public override object ReadJson(JsonReader reader, Type objectType, object exist
var nrc = (NodeReadConverter)serializer.Converters.First(c => c is NodeReadConverter);
nrc.ElementResolver = elementResolver;

var nodes = obj["Nodes"].ToObject<IEnumerable<NodeModel>>(serializer);
var nodes = obj["Nodes"].ToObject<IEnumerable<NodeModel>>(serializer).ToList();
// initialize this dictionary lazily if it needs to be queried
Dictionary<Guid, NodeModel> nodeLookup = null;

// Setting Inputs
// Required in headless mode by Dynamo Player that certain view properties are set back to NodeModel
var inputsToken = obj["Inputs"];
if (inputsToken != null)
{
var inputs = inputsToken.ToArray().Select(x =>
nodeLookup ??= nodes.ToDictionary(n => n.GUID);

var inputs = inputsToken.Select(x =>
{
try
{ return x.ToObject<NodeInputData>(); }
{
return x.ToObject<NodeInputData>();
}
catch (Exception ex)
{
engine?.AsLogger().Log(ex);
return null;
}
//dump nulls
}).Where(x => !(x is null)).ToList();
}).Where(x => x != null);

// Use the inputs to set the correct properties on the nodes.
foreach (var inputData in inputs)
{
var matchingNode = nodes.Where(x => x.GUID == inputData.Id).FirstOrDefault();
if (matchingNode != null)
if (nodeLookup.TryGetValue(inputData.Id, out var matchingNode))
{
matchingNode.IsSetAsInput = true;
matchingNode.Name = inputData.Name;
Expand All @@ -539,12 +531,13 @@ public override object ReadJson(JsonReader reader, Type objectType, object exist
var outputsToken = obj["Outputs"];
if (outputsToken != null)
{
var outputs = outputsToken.ToArray().Select(x => x.ToObject<NodeOutputData>()).ToList();
nodeLookup ??= nodes.ToDictionary(n => n.GUID);

var outputs = outputsToken.Select(x => x.ToObject<NodeOutputData>());
// Use the outputs to set the correct properties on the nodes.
foreach (var outputData in outputs)
{
var matchingNode = nodes.Where(x => x.GUID == outputData.Id).FirstOrDefault();
if (matchingNode != null)
if (nodeLookup.TryGetValue(outputData.Id, out var matchingNode))
{
matchingNode.IsSetAsOutput = true;
matchingNode.Name = outputData.Name;
Expand All @@ -559,26 +552,23 @@ public override object ReadJson(JsonReader reader, Type objectType, object exist
var view = obj["View"];
if (view != null && view["NodeViews"] != null)
{
var nodeViews = view["NodeViews"].ToList();
nodeLookup ??= nodes.ToDictionary(n => n.GUID);

var nodeViews = view["NodeViews"];
foreach (var nodeview in nodeViews)
{
Guid nodeGuid;
try
{
nodeGuid = Guid.Parse(nodeview["Id"].Value<string>());
var matchingNode = nodes.Where(x => x.GUID == nodeGuid).FirstOrDefault();
if (matchingNode != null)
var nodeGuid = Guid.Parse(nodeview["Id"].Value<string>());
if (nodeLookup.TryGetValue(nodeGuid, out var matchingNode))
{
matchingNode.IsSetAsInput = nodeview["IsSetAsInput"].Value<bool>();
matchingNode.IsSetAsOutput = nodeview["IsSetAsOutput"].Value<bool>();
matchingNode.IsFrozen = nodeview["Excluded"].Value<bool>();
matchingNode.Name = nodeview["Name"].Value<string>();
}
}
catch
{
continue;
}
catch { }
}
}
#endregion
Expand Down Expand Up @@ -927,7 +917,16 @@ public override void WriteJson(JsonWriter writer, object value, JsonSerializer s

// GraphDocumentaionLink
writer.WritePropertyName(nameof(HomeWorkspaceModel.GraphDocumentationURL));
writer.WriteValue(hws.GraphDocumentationURL);
if (hws.GraphDocumentationURL == null)
{
// The JValue json text writer throws when writing null URI values, the regular
// JsonConvert serializer does not.
writer.WriteNull();
}
else
{
writer.WriteValue(hws.GraphDocumentationURL);
}

// ExtensionData
writer.WritePropertyName(WorkspaceReadConverter.EXTENSION_WORKSPACE_DATA);
Expand Down
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