private JsonSchema GenerateInternal(Type type, Required valueRequired, bool required)
{
ValidationUtils.ArgumentNotNull(type, "type");
string resolvedId = GetTypeId(type, false);
string explicitId = GetTypeId(type, true);
if (!string.IsNullOrEmpty(resolvedId))
{
JsonSchema resolvedSchema = _resolver.GetSchema(resolvedId);
if (resolvedSchema != null)
{
// resolved schema is not null but referencing member allows nulls
// change resolved schema to allow nulls. hacky but what are ya gonna do?
if (valueRequired != Required.Always && !HasFlag(resolvedSchema.Type, JsonSchemaType.Null))
{
resolvedSchema.Type |= JsonSchemaType.Null;
}
if (required && resolvedSchema.Required != true)
{
resolvedSchema.Required = true;
}
return(resolvedSchema);
}
}
// test for unresolved circular reference
if (_stack.Any(tc => tc.Type == type))
{
throw new JsonException("Unresolved circular reference for type '{0}'. Explicitly define an Id for the type using a JsonObject/JsonArray attribute or automatically generate a type Id using the UndefinedSchemaIdHandling property.".FormatWith(CultureInfo.InvariantCulture, type));
}
JsonContract contract = ContractResolver.ResolveContract(type);
JsonConverter converter;
if ((converter = contract.Converter) != null || (converter = contract.InternalConverter) != null)
{
JsonSchema converterSchema = converter.GetSchema();
if (converterSchema != null)
{
return(converterSchema);
}
}
Push(new TypeSchema(type, new JsonSchema()));
if (explicitId != null)
{
CurrentSchema.Id = explicitId;
}
if (required)
{
CurrentSchema.Required = true;
}
CurrentSchema.Title = GetTitle(type);
CurrentSchema.Description = GetDescription(type);
if (converter != null)
{
// todo: Add GetSchema to JsonConverter and use here?
CurrentSchema.Type = JsonSchemaType.Any;
}
else
{
switch (contract.ContractType)
{
case JsonContractType.Object:
CurrentSchema.Type = AddNullType(JsonSchemaType.Object, valueRequired);
CurrentSchema.Id = GetTypeId(type, false);
GenerateObjectSchema(type, (JsonObjectContract)contract);
break;
case JsonContractType.Array:
CurrentSchema.Type = AddNullType(JsonSchemaType.Array, valueRequired);
CurrentSchema.Id = GetTypeId(type, false);
JsonArrayAttribute arrayAttribute = JsonTypeReflector.GetCachedAttribute <JsonArrayAttribute>(type);
bool allowNullItem = (arrayAttribute == null || arrayAttribute.AllowNullItems);
Type collectionItemType = ReflectionUtils.GetCollectionItemType(type);
if (collectionItemType != null)
{
CurrentSchema.Items = new List <JsonSchema>();
CurrentSchema.Items.Add(GenerateInternal(collectionItemType, (!allowNullItem) ? Required.Always : Required.Default, false));
}
break;
case JsonContractType.Primitive:
CurrentSchema.Type = GetJsonSchemaType(type, valueRequired);
if (CurrentSchema.Type == JsonSchemaType.Integer && type.IsEnum() && !type.IsDefined(typeof(FlagsAttribute), true))
{
CurrentSchema.Enum = new List <JToken>();
IList <EnumValue <long> > enumValues = EnumUtils.GetNamesAndValues <long>(type);
foreach (EnumValue <long> enumValue in enumValues)
{
JToken value = JToken.FromObject(enumValue.Value);
CurrentSchema.Enum.Add(value);
}
}
break;
case JsonContractType.String:
JsonSchemaType schemaType = (!ReflectionUtils.IsNullable(contract.UnderlyingType))
? JsonSchemaType.String
: AddNullType(JsonSchemaType.String, valueRequired);
CurrentSchema.Type = schemaType;
break;
case JsonContractType.Dictionary:
CurrentSchema.Type = AddNullType(JsonSchemaType.Object, valueRequired);
Type keyType;
Type valueType;
ReflectionUtils.GetDictionaryKeyValueTypes(type, out keyType, out valueType);
if (keyType != null)
{
JsonContract keyContract = ContractResolver.ResolveContract(keyType);
// can be converted to a string
if (keyContract.ContractType == JsonContractType.Primitive)
{
CurrentSchema.AdditionalProperties = GenerateInternal(valueType, Required.Default, false);
}
}
break;
#if !(NETFX_CORE || PORTABLE || PORTABLE40)
case JsonContractType.Serializable:
CurrentSchema.Type = AddNullType(JsonSchemaType.Object, valueRequired);
CurrentSchema.Id = GetTypeId(type, false);
GenerateISerializableContract(type, (JsonISerializableContract)contract);
break;
#endif
#if !(NET35 || NET20 || PORTABLE40)
case JsonContractType.Dynamic:
#endif
case JsonContractType.Linq:
CurrentSchema.Type = JsonSchemaType.Any;
break;
default:
throw new JsonException("Unexpected contract type: {0}".FormatWith(CultureInfo.InvariantCulture, contract));
}
}
return(Pop().Schema);
}
private void Push(TypeSchema typeSchema)
{
_currentSchema = typeSchema.Schema;
_stack.Add(typeSchema);
_resolver.LoadedSchemas.Add(typeSchema.Schema);
}
