/// <summary>
/// Initializes a new instance of the <see cref="JsonContainerContract"/> class.
/// </summary>
/// <param name="underlyingType">The underlying type for the contract.</param>
internal JsonContainerContract(Type underlyingType)
: base(underlyingType)
{
JsonContainerAttribute jsonContainerAttribute = JsonTypeReflector.GetJsonContainerAttribute(underlyingType);
if (jsonContainerAttribute != null)
{
if (jsonContainerAttribute.ItemConverterType != null)
{
ItemConverter = JsonConverterAttribute.CreateJsonConverterInstance(jsonContainerAttribute.ItemConverterType);
}
ItemIsReference = jsonContainerAttribute._itemIsReference;
ItemReferenceLoopHandling = jsonContainerAttribute._itemReferenceLoopHandling;
ItemTypeNameHandling = jsonContainerAttribute._itemTypeNameHandling;
}
}
/// <summary>
/// Creates a <see cref="JsonObjectContract"/> for the given type.
/// </summary>
/// <param name="objectType">Type of the object.</param>
/// <returns>A <see cref="JsonObjectContract"/> for the given type.</returns>
protected virtual JsonObjectContract CreateObjectContract(Type objectType)
{
JsonObjectContract contract = new JsonObjectContract(objectType);
InitializeContract(contract);
bool ignoreSerializableAttribute;
#if !(SILVERLIGHT || NETFX_CORE || PORTABLE)
ignoreSerializableAttribute = IgnoreSerializableAttribute;
#else
ignoreSerializableAttribute = true;
#endif
contract.MemberSerialization = JsonTypeReflector.GetObjectMemberSerialization(contract.NonNullableUnderlyingType, ignoreSerializableAttribute);
contract.Properties.AddRange(CreateProperties(contract.NonNullableUnderlyingType, contract.MemberSerialization));
// check if a JsonConstructorAttribute has been defined and use that
if (contract.NonNullableUnderlyingType.GetConstructors(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).Any(c => c.IsDefined(typeof(JsonConstructorAttribute), true)))
{
ConstructorInfo constructor = GetAttributeConstructor(contract.NonNullableUnderlyingType);
if (constructor != null)
{
contract.OverrideConstructor = constructor;
contract.ConstructorParameters.AddRange(CreateConstructorParameters(constructor, contract.Properties));
}
}
else if (contract.DefaultCreator == null || contract.DefaultCreatorNonPublic)
{
ConstructorInfo constructor = GetParametrizedConstructor(contract.NonNullableUnderlyingType);
if (constructor != null)
{
contract.ParametrizedConstructor = constructor;
contract.ConstructorParameters.AddRange(CreateConstructorParameters(constructor, contract.Properties));
}
}
return(contract);
}
private void InitializeContract(JsonContract contract)
{
JsonContainerAttribute containerAttribute = JsonTypeReflector.GetJsonContainerAttribute(contract.NonNullableUnderlyingType);
if (containerAttribute != null)
{
contract.IsReference = containerAttribute._isReference;
}
#if !PocketPC && !NET20
else
{
DataContractAttribute dataContractAttribute = JsonTypeReflector.GetDataContractAttribute(contract.NonNullableUnderlyingType);
// doesn't have a null value
if (dataContractAttribute != null && dataContractAttribute.IsReference)
{
contract.IsReference = true;
}
}
#endif
contract.Converter = ResolveContractConverter(contract.NonNullableUnderlyingType);
// then see whether object is compadible with any of the built in converters
contract.InternalConverter = JsonSerializer.GetMatchingConverter(BuiltInConverters, contract.NonNullableUnderlyingType);
if (ReflectionUtils.HasDefaultConstructor(contract.CreatedType, true) ||
contract.CreatedType.IsValueType())
{
contract.DefaultCreator = GetDefaultCreator(contract.CreatedType);
contract.DefaultCreatorNonPublic = (!contract.CreatedType.IsValueType() &&
ReflectionUtils.GetDefaultConstructor(contract.CreatedType) == null);
}
ResolveCallbackMethods(contract, contract.NonNullableUnderlyingType);
}
/// <summary>
/// Resolves the default <see cref="JsonConverter" /> for the contract.
/// </summary>
/// <param name="objectType">Type of the object.</param>
/// <returns></returns>
protected virtual JsonConverter ResolveContractConverter(Type objectType)
{
return(JsonTypeReflector.GetJsonConverter(objectType.GetCustomAttributeProvider(), objectType));
}
/// <summary>
/// Gets the serializable members for the type.
/// </summary>
/// <param name="objectType">The type to get serializable members for.</param>
/// <returns>The serializable members for the type.</returns>
protected virtual List <MemberInfo> GetSerializableMembers(Type objectType)
{
bool ignoreSerializableAttribute;
#if !(SILVERLIGHT || NETFX_CORE || PORTABLE)
ignoreSerializableAttribute = IgnoreSerializableAttribute;
#else
ignoreSerializableAttribute = true;
#endif
MemberSerialization memberSerialization = JsonTypeReflector.GetObjectMemberSerialization(objectType, ignoreSerializableAttribute);
List <MemberInfo> allMembers = ReflectionUtils.GetFieldsAndProperties(objectType, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static)
.Where(m => !ReflectionUtils.IsIndexedProperty(m)).ToList();
List <MemberInfo> serializableMembers = new List <MemberInfo>();
if (memberSerialization != MemberSerialization.Fields)
{
#if !PocketPC && !NET20
DataContractAttribute dataContractAttribute = JsonTypeReflector.GetDataContractAttribute(objectType);
#endif
List <MemberInfo> defaultMembers = ReflectionUtils.GetFieldsAndProperties(objectType, DefaultMembersSearchFlags)
.Where(m => !ReflectionUtils.IsIndexedProperty(m)).ToList();
foreach (MemberInfo member in allMembers)
{
// exclude members that are compiler generated if set
if (SerializeCompilerGeneratedMembers || !member.IsDefined(typeof(CompilerGeneratedAttribute), true))
{
if (defaultMembers.Contains(member))
{
// add all members that are found by default member search
serializableMembers.Add(member);
}
else
{
// add members that are explicitly marked with JsonProperty/DataMember attribute
// or are a field if serializing just fields
if (JsonTypeReflector.GetAttribute <JsonPropertyAttribute>(member.GetCustomAttributeProvider()) != null)
{
serializableMembers.Add(member);
}
#if !PocketPC && !NET20
else if (dataContractAttribute != null && JsonTypeReflector.GetAttribute <DataMemberAttribute>(member.GetCustomAttributeProvider()) != null)
{
serializableMembers.Add(member);
}
#endif
else if (memberSerialization == MemberSerialization.Fields && member.MemberType() == MemberTypes.Field)
{
serializableMembers.Add(member);
}
}
}
}
#if !PocketPC && !SILVERLIGHT && !NET20
Type match;
// don't include EntityKey on entities objects... this is a bit hacky
if (objectType.AssignableToTypeName("System.Data.Objects.DataClasses.EntityObject", out match))
{
serializableMembers = serializableMembers.Where(ShouldSerializeEntityMember).ToList();
}
#endif
}
else
{
// serialize all fields
foreach (MemberInfo member in allMembers)
{
if (member.MemberType() == MemberTypes.Field)
{
serializableMembers.Add(member);
}
}
}
return(serializableMembers);
}
private void SetPropertySettingsFromAttributes(JsonProperty property, ICustomAttributeProvider attributeProvider, string name, Type declaringType, MemberSerialization memberSerialization, out bool allowNonPublicAccess, out bool hasExplicitAttribute)
{
hasExplicitAttribute = false;
#if !PocketPC && !NET20
DataContractAttribute dataContractAttribute = JsonTypeReflector.GetDataContractAttribute(declaringType);
MemberInfo memberInfo = null;
#if !(NETFX_CORE || PORTABLE)
memberInfo = attributeProvider as MemberInfo;
#else
memberInfo = attributeProvider.UnderlyingObject as MemberInfo;
#endif
DataMemberAttribute dataMemberAttribute;
if (dataContractAttribute != null && memberInfo != null)
{
dataMemberAttribute = JsonTypeReflector.GetDataMemberAttribute((MemberInfo)memberInfo);
}
else
{
dataMemberAttribute = null;
}
#endif
JsonPropertyAttribute propertyAttribute = JsonTypeReflector.GetAttribute <JsonPropertyAttribute>(attributeProvider);
if (propertyAttribute != null)
{
hasExplicitAttribute = true;
}
string mappedName;
if (propertyAttribute != null && propertyAttribute.PropertyName != null)
{
mappedName = propertyAttribute.PropertyName;
}
#if !PocketPC && !NET20
else if (dataMemberAttribute != null && dataMemberAttribute.Name != null)
{
mappedName = dataMemberAttribute.Name;
}
#endif
else
{
mappedName = name;
}
property.PropertyName = ResolvePropertyName(mappedName);
property.UnderlyingName = name;
if (propertyAttribute != null)
{
property.Required = propertyAttribute.Required;
property.Order = propertyAttribute._order;
}
#if !PocketPC && !NET20
else if (dataMemberAttribute != null)
{
property.Required = (dataMemberAttribute.IsRequired) ? Required.AllowNull : Required.Default;
property.Order = (dataMemberAttribute.Order != -1) ? (int?)dataMemberAttribute.Order : null;
}
#endif
else
{
property.Required = Required.Default;
}
bool hasJsonIgnoreAttribute = JsonTypeReflector.GetAttribute <JsonIgnoreAttribute>(attributeProvider) != null
#if !(SILVERLIGHT || NETFX_CORE || PORTABLE)
|| JsonTypeReflector.GetAttribute <NonSerializedAttribute>(attributeProvider) != null
#endif
;
if (memberSerialization != MemberSerialization.OptIn)
{
// ignored if it has JsonIgnore or NonSerialized attributes
property.Ignored = hasJsonIgnoreAttribute;
}
else
{
// ignored if it has JsonIgnore/NonSerialized or does not have DataMember or JsonProperty attributes
property.Ignored =
hasJsonIgnoreAttribute ||
(propertyAttribute == null
#if !PocketPC && !NET20
&& dataMemberAttribute == null
#endif
);
}
// resolve converter for property
// the class type might have a converter but the property converter takes presidence
property.Converter = JsonTypeReflector.GetJsonConverter(attributeProvider, property.PropertyType);
property.MemberConverter = JsonTypeReflector.GetJsonConverter(attributeProvider, property.PropertyType);
DefaultValueAttribute defaultValueAttribute = JsonTypeReflector.GetAttribute <DefaultValueAttribute>(attributeProvider);
property.DefaultValue = (defaultValueAttribute != null) ? defaultValueAttribute.Value : null;
property.NullValueHandling = (propertyAttribute != null) ? propertyAttribute._nullValueHandling : null;
property.DefaultValueHandling = (propertyAttribute != null) ? propertyAttribute._defaultValueHandling : null;
property.ReferenceLoopHandling = (propertyAttribute != null) ? propertyAttribute._referenceLoopHandling : null;
property.ObjectCreationHandling = (propertyAttribute != null) ? propertyAttribute._objectCreationHandling : null;
property.TypeNameHandling = (propertyAttribute != null) ? propertyAttribute._typeNameHandling : null;
property.IsReference = (propertyAttribute != null) ? propertyAttribute._isReference : null;
allowNonPublicAccess = false;
if ((DefaultMembersSearchFlags & BindingFlags.NonPublic) == BindingFlags.NonPublic)
{
allowNonPublicAccess = true;
}
if (propertyAttribute != null)
{
allowNonPublicAccess = true;
}
if (memberSerialization == MemberSerialization.Fields)
{
allowNonPublicAccess = true;
}
#if !PocketPC && !NET20
if (dataMemberAttribute != null)
{
allowNonPublicAccess = true;
hasExplicitAttribute = true;
}
#endif
}
