/// <summary>Initializes a new instance of the <see cref="SchemaProcessorContext" /> class.</summary>
/// <param name="type">The source type.</param>
/// <param name="schema">The JSON Schema.</param>
/// <param name="resolver">The resolver.</param>
/// <param name="generator">The generator.</param>
/// <param name="settings">The settings.</param>
public SchemaProcessorContext(Type type, JsonSchema4 schema, JsonSchemaResolver resolver, JsonSchemaGenerator generator, JsonSchemaGeneratorSettings settings)
{
Type = type;
Schema = schema;
Resolver = resolver;
Generator = generator;
Settings = settings;
}
/// <summary>Creates a <see cref="JsonTypeDescription"/> from a <see cref="Type"/>. </summary>
/// <param name="type">The type. </param>
/// <param name="parentAttributes">The parent's attributes (i.e. parameter or property attributes).</param>
/// <param name="settings">The settings.</param>
/// <returns>The <see cref="JsonTypeDescription"/>. </returns>
public virtual JsonTypeDescription GetDescription(Type type, IEnumerable <Attribute> parentAttributes, JsonSchemaGeneratorSettings settings)
{
if (type.GetTypeInfo().IsEnum)
{
var isStringEnum = IsStringEnum(type, parentAttributes, settings.DefaultEnumHandling);
return(JsonTypeDescription.CreateForEnumeration(type,
isStringEnum ? JsonObjectType.String : JsonObjectType.Integer, false));
}
if (type == typeof(short) ||
type == typeof(uint) ||
type == typeof(ushort))
{
return(JsonTypeDescription.Create(type, JsonObjectType.Integer, false, null));
}
if (type == typeof(int))
{
return(JsonTypeDescription.Create(type, JsonObjectType.Integer, false, JsonFormatStrings.Integer));
}
if (type == typeof(long) ||
type == typeof(ulong))
{
return(JsonTypeDescription.Create(type, JsonObjectType.Integer, false, JsonFormatStrings.Long));
}
if (type == typeof(double) ||
type == typeof(float))
{
return(JsonTypeDescription.Create(type, JsonObjectType.Number, false, JsonFormatStrings.Double));
}
if (type == typeof(decimal))
{
return(JsonTypeDescription.Create(type, JsonObjectType.Number, false, JsonFormatStrings.Decimal));
}
if (type == typeof(bool))
{
return(JsonTypeDescription.Create(type, JsonObjectType.Boolean, false, null));
}
var isNullable = IsNullable(type, parentAttributes, settings);
if (type == typeof(string) || type == typeof(Type))
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, isNullable, null));
}
if (type == typeof(char))
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, false, null));
}
if (type == typeof(Guid))
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, false, JsonFormatStrings.Guid));
}
if (type == typeof(DateTime) ||
type == typeof(DateTimeOffset) ||
type.FullName == "NodaTime.OffsetDateTime" ||
type.FullName == "NodaTime.LocalDateTime" ||
type.FullName == "NodaTime.ZonedDateTime")
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, false, JsonFormatStrings.DateTime));
}
if (type == typeof(TimeSpan) ||
type.FullName == "NodaTime.Duration")
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, false, JsonFormatStrings.TimeSpan));
}
if (type.FullName == "NodaTime.LocalDate")
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, false, JsonFormatStrings.Date));
}
if (type.FullName == "NodaTime.LocalTime")
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, false, JsonFormatStrings.Time));
}
if (type == typeof(Uri))
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, isNullable, JsonFormatStrings.Uri));
}
if (type == typeof(byte))
{
return(JsonTypeDescription.Create(type, JsonObjectType.Integer, false, JsonFormatStrings.Byte));
}
if (type == typeof(byte[]))
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, isNullable, JsonFormatStrings.Byte));
}
if (type == typeof(JObject) ||
type == typeof(JToken) ||
type.FullName == "System.Dynamic.ExpandoObject" ||
type == typeof(object))
{
return(JsonTypeDescription.Create(type, JsonObjectType.None, isNullable, null));
}
if (IsFileType(type, parentAttributes))
{
return(JsonTypeDescription.Create(type, JsonObjectType.File, isNullable, null));
}
var contract = settings.ResolveContract(type);
if (IsDictionaryType(type, parentAttributes) && contract is JsonDictionaryContract)
{
return(JsonTypeDescription.CreateForDictionary(type, JsonObjectType.Object, isNullable));
}
if (IsArrayType(type, parentAttributes) && contract is JsonArrayContract)
{
return(JsonTypeDescription.Create(type, JsonObjectType.Array, isNullable, null));
}
if (type.Name == "Nullable`1")
{
#if !LEGACY
var typeDescription = GetDescription(type.GenericTypeArguments[0], parentAttributes, settings);
#else
var typeDescription = GetDescription(type.GetGenericArguments()[0], parentAttributes, settings);
#endif
typeDescription.IsNullable = true;
return(typeDescription);
}
var jsonSchemaAttribute = type.GetTypeInfo().GetCustomAttribute <JsonSchemaAttribute>() ??
parentAttributes?.OfType <JsonSchemaAttribute>().SingleOrDefault();
if (jsonSchemaAttribute != null)
{
var classType = jsonSchemaAttribute.Type != JsonObjectType.None ? jsonSchemaAttribute.Type : JsonObjectType.Object;
var format = !string.IsNullOrEmpty(jsonSchemaAttribute.Format) ? jsonSchemaAttribute.Format : null;
return(JsonTypeDescription.Create(type, classType, isNullable, format));
}
if (contract is JsonStringContract)
{
return(JsonTypeDescription.Create(type, JsonObjectType.String, isNullable, null));
}
return(JsonTypeDescription.Create(type, JsonObjectType.Object, isNullable, null));
}
/// <summary>Checks whether a type is nullable.</summary>
/// <param name="type">The type.</param>
/// <param name="parentAttributes">The parent attributes (e.g. property or parameter attributes).</param>
/// <param name="settings">The settings</param>
/// <returns>true if the type can be null.</returns>
public virtual bool IsNullable(Type type, IEnumerable <Attribute> parentAttributes, JsonSchemaGeneratorSettings settings)
{
var jsonPropertyAttribute = parentAttributes?.OfType <JsonPropertyAttribute>().SingleOrDefault();
if (jsonPropertyAttribute != null && jsonPropertyAttribute.Required == Required.DisallowNull)
{
return(false);
}
if (parentAttributes.TryGetIfAssignableTo("NotNullAttribute", TypeNameStyle.Name) != null)
{
return(false);
}
if (parentAttributes.TryGetIfAssignableTo("CanBeNullAttribute", TypeNameStyle.Name) != null)
{
return(true);
}
if (type.Name == "Nullable`1")
{
return(true);
}
var isValueType = type != typeof(string) && type.GetTypeInfo().IsValueType;
return(isValueType == false && settings.DefaultReferenceTypeNullHandling == ReferenceTypeNullHandling.Null);
}
