private object ReadJsonAsResourceObject(ForkableJsonReader reader, Type objectType, JsonSerializer serializer)
{
// if the value has been explicitly set to null then the value of the element is simply null
if (reader.TokenType == JsonToken.Null)
{
return(null);
}
var serializationData = SerializationData.GetSerializationData(reader);
var jsonApiContractResolver = (JsonApiContractResolver)serializer.ContractResolver;
var reference = ReaderUtil.ReadAheadToIdentifyObject(reader);
if (serializationData.Included.TryGetValue(reference, out object resourceObject))
{
if (resourceObject is JObject resoruceObjectJObject)
{
// sometimes the value in the reference resolver is a JObject. This occurs when we
// did not know what type it should be when we first read it (i.e. included was processed
// before the item). In these cases we now know what type it should be so will read it
// as such
var resourceObjectReader = new ForkableJsonReader(resoruceObjectJObject.CreateReader(), reader.SerializationDataToken);
resourceObjectReader.Read(); //JObject readers begin at Not Started
resourceObject = jsonApiContractResolver.ResourceObjectConverter.ReadJson(
resourceObjectReader,
objectType,
null,
serializer);
}
//push the reader to the end, we dont need anything else out of the reference
ReaderUtil.ReadUntilEnd(reader, reader.Path);
}
else
{
var contract = (JsonObjectContract)jsonApiContractResolver.ResolveContract(objectType);
resourceObject = ReaderUtil.CreateObject(serializationData, objectType, reference.Type, serializer);
// for placeholders we will just read the top level properties
// it is unlikely to have attributes/relationships present
foreach (var propName in ReaderUtil.IterateProperties(reader))
{
var successfullyPopulateProperty = ReaderUtil.TryPopulateProperty(
serializer,
resourceObject,
contract.Properties.GetClosestMatchProperty(propName),
reader);
}
serializationData.Included[reference] = resourceObject;
}
if (!TypeInfoShim.IsInstanceOf(objectType.GetTypeInfo(), resourceObject))
{
throw new JsonSerializationException($"Unable to assign object '{resourceObject}' to type '{objectType}' at path {reader.FullPath}");
}
return(resourceObject);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var serializationData = SerializationData.GetSerializationData(reader);
reader = new ForkableJsonReader(reader);
var contract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(objectType);
var rootObject = contract.DefaultCreator();
serializationData.HasProcessedDocumentRoot = true;
var includedConverter = new IncludedConverter();
foreach (var propName in ReaderUtil.IterateProperties(reader))
{
switch (propName)
{
case PropertyNames.Data:
var documentRootInterfaceType = TypeInfoShim.GetInterfaces(objectType.GetTypeInfo())
.Select(x => x.GetTypeInfo())
.FirstOrDefault(x =>
x.IsGenericType &&
x.GetGenericTypeDefinition() == typeof(IDocumentRoot <>));
var dataType = documentRootInterfaceType.GenericTypeArguments[0];
var dataObj = serializer.Deserialize(reader, dataType);
contract.Properties.GetClosestMatchProperty(PropertyNames.Data).ValueProvider.SetValue(rootObject, dataObj);
break;
case PropertyNames.Included:
//if our object has an included property we will do our best to populate it
var property = contract.Properties.GetClosestMatchProperty(propName);
if (ReaderUtil.CanPopulateProperty(property))
{
ReaderUtil.TryPopulateProperty(serializer, rootObject, contract.Properties.GetClosestMatchProperty(propName), ((ForkableJsonReader)reader).Fork());
}
//still need to read our values so they are updated
foreach (var obj in ReaderUtil.IterateList(reader))
{
var includedObject = includedConverter.ReadJson(reader, typeof(object), null, serializer);
}
break;
default:
ReaderUtil.TryPopulateProperty(serializer, rootObject, contract.Properties.GetClosestMatchProperty(propName), reader);
break;
}
}
return(rootObject);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
//we may be starting the deserialization here, if thats the case we need to resolve this object as the root
object obj;
if (DocumentRootConverter.TryResolveAsRootData(reader, objectType, serializer, out obj))
{
return(obj);
}
//read into the 'Data' element
return(ReaderUtil.ReadInto(
reader as ForkableJsonReader ?? new ForkableJsonReader(reader),
DataReadPathRegex,
dataReader =>
{
//if the value has been explicitly set to null then the value of the element is simply null
if (dataReader.TokenType == JsonToken.Null)
{
return null;
}
JsonObjectContract contract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(objectType);
var serializationData = SerializationData.GetSerializationData(dataReader);
//if we arent given an existing value check the references to see if we have one in there
//if we dont have one there then create a new object to populate
if (existingValue == null)
{
var reference = ReaderUtil.ReadAheadToIdentifyObject(dataReader);
if (!serializationData.Included.TryGetValue(reference, out existingValue))
{
existingValue = contract.DefaultCreator();
serializationData.Included.Add(reference, existingValue);
}
if (existingValue is JObject)
{
//sometimes the value in the reference resolver is a JObject. This occurs when we
//did not know what type it should be when we first read it (i.e. included was processed
//before the item). In these cases we will create a new object and read data from the JObject
dataReader = new ForkableJsonReader(((JObject)existingValue).CreateReader(), dataReader.SerializationDataToken);
dataReader.Read(); //JObject readers begin at Not Started
existingValue = contract.DefaultCreator();
serializationData.Included[reference] = existingValue;
}
}
PopulateProperties(serializer, existingValue, dataReader, contract);
return existingValue;
}));
}
private object ReadJsonAsExplicitResourceIdentifier(ForkableJsonReader reader, Type objectType, JsonSerializer serializer)
{
if (ReaderUtil.TryUseCustomConvertor(reader, objectType, null, serializer, this, out object customConvertedValue))
{
return(customConvertedValue);
}
// if the value has been explicitly set to null then the value of the element is simply null
if (reader.TokenType == JsonToken.Null)
{
return(null);
}
var serializationData = SerializationData.GetSerializationData(reader);
var jsonApiContractResolver = (JsonApiContractResolver)serializer.ContractResolver;
var resourceIdentifierContract = (ResourceIdentifierContract)jsonApiContractResolver.ResolveContract(objectType);
var resourceIdentifier = resourceIdentifierContract.DefaultCreator();
var reference = ReaderUtil.ReadAheadToIdentifyObject(reader);
var explicitResourceIdentifierReader = reader.Fork();
foreach (var innerPropName in ReaderUtil.IterateProperties(explicitResourceIdentifierReader))
{
ReaderUtil.TryPopulateProperty(
serializer,
resourceIdentifier,
resourceIdentifierContract.Properties.GetClosestMatchProperty(innerPropName),
explicitResourceIdentifierReader);
}
var resourceObject = ReadJsonAsResourceObject(
reader,
resourceIdentifierContract.ResourceObjectProperty.PropertyType,
serializer);
//we will only set the resource object if we have rendered the included
//value somehwere, if we have not it means the value was actaully provided
var valueProvider = resourceIdentifierContract.ResourceObjectProperty.ValueProvider;
serializationData.PostProcessingActions.Add(() =>
{
if (serializationData.RenderedIncluded.Contains(reference))
{
valueProvider.SetValue(resourceIdentifier, resourceObject);
}
});
return(resourceIdentifier);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
reader = new ForkableJsonReader(reader);
var contract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(objectType);
var rootObject = contract.DefaultCreator();
serializer.ReferenceResolver.AddReference(null, IncludedReferenceResolver.RootReference, rootObject);
var includedConverter = new IncludedConverter();
foreach (var propName in ReaderUtil.IterateProperties(reader))
{
switch (propName)
{
case PropertyNames.Data:
var documentRootInterfaceType = TypeInfoShim.GetInterfaces(objectType.GetTypeInfo())
.Select(x => x.GetTypeInfo())
.FirstOrDefault(x =>
x.IsGenericType &&
x.GetGenericTypeDefinition() == typeof(IDocumentRoot <>));
var dataType = documentRootInterfaceType.GenericTypeArguments[0];
var dataObj = serializer.Deserialize(reader, dataType);
contract.Properties.GetClosestMatchProperty(PropertyNames.Data).ValueProvider.SetValue(rootObject, dataObj);
break;
case PropertyNames.Included:
foreach (var obj in ReaderUtil.IterateList(reader))
{
var includedObject = includedConverter.ReadJson(reader, typeof(object), null, serializer);
}
break;
default:
ReaderUtil.TryPopulateProperty(serializer, rootObject, contract.Properties.GetClosestMatchProperty(propName), reader);
break;
}
}
return(rootObject);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
//we may be starting the deserialization here, if thats the case we need to resolve this object as the root
if (DocumentRootConverter.TryResolveAsRootData(reader, objectType, serializer, out object obj))
{
return(obj);
}
//read into the 'Data' element
return(ReaderUtil.ReadInto(
reader as ForkableJsonReader ?? new ForkableJsonReader(reader),
DataReadPathRegex,
dataReader =>
{
//if they have custom convertors registered, we will respect them
var customConvertor = serializer.Converters.FirstOrDefault(x => x.CanRead && x.CanConvert(objectType));
if (customConvertor != null && customConvertor != this)
{
return customConvertor.ReadJson(reader, objectType, existingValue, serializer);
}
//if the value has been explicitly set to null then the value of the element is simply null
if (dataReader.TokenType == JsonToken.Null)
{
return null;
}
var serializationData = SerializationData.GetSerializationData(dataReader);
//if we arent given an existing value check the references to see if we have one in there
//if we dont have one there then create a new object to populate
if (existingValue == null)
{
var reference = ReaderUtil.ReadAheadToIdentifyObject(dataReader);
if (!serializationData.Included.TryGetValue(reference, out existingValue))
{
existingValue = CreateObject(objectType, reference.Type, serializer);
serializationData.Included.Add(reference, existingValue);
}
if (existingValue is JObject existingValueJObject)
{
//sometimes the value in the reference resolver is a JObject. This occurs when we
//did not know what type it should be when we first read it (i.e. included was processed
//before the item). In these cases we will create a new object and read data from the JObject
dataReader = new ForkableJsonReader(existingValueJObject.CreateReader(), dataReader.SerializationDataToken);
dataReader.Read(); //JObject readers begin at Not Started
existingValue = CreateObject(objectType, reference.Type, serializer);
serializationData.Included[reference] = existingValue;
}
}
//additional check to ensure the object we created is of the correct type
if (!TypeInfoShim.IsInstanceOf(objectType.GetTypeInfo(), existingValue))
{
throw new JsonSerializationException($"Unable to assign object '{existingValue}' to type '{objectType}'");
}
PopulateProperties(serializer, existingValue, dataReader);
return existingValue;
}));
}
