private static object ToObject(IJSonObject source, object destination, Type oType)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (destination == null)
{
throw new ArgumentNullException("destination");
}
if (!source.IsEnumerable || source.Names == null)
{
throw new ArgumentException("Source is not a JSON Object");
}
JSonSerializableAttribute jsonAttribute = ReflectionHelper.GetCustomAttribute <JSonSerializableAttribute>(oType);
if (jsonAttribute == null)
{
throw new JSonException("Object doesn't marked with JSonSerializable attribute");
}
// get members that will be serialized:
#if WINDOWS_STORE
IEnumerable <FieldInfo> fieldMembers = ReflectionHelper.GetFields(oType);
IEnumerable <PropertyInfo> propertyMembers = ReflectionHelper.GetProperties(oType);
#else
IEnumerable <FieldInfo> fieldMembers = ReflectionHelper.GetFields(oType, jsonAttribute.Flags);
IEnumerable <PropertyInfo> propertyMembers = ReflectionHelper.GetProperties(oType, jsonAttribute.Flags);
#endif
// deserialize all fields:
foreach (FieldInfo fieldInfo in fieldMembers)
{
ToObjectSetField(source, destination, oType, jsonAttribute, fieldInfo);
}
// deserialize all properties:
foreach (PropertyInfo propertyInfo in propertyMembers)
{
ToObjectSetProperty(source, destination, oType, jsonAttribute, propertyInfo);
}
return(destination);
}
private static void ToObjectSetProperty(IJSonObject source, object destination, Type oType, JSonSerializableAttribute jsonAttribute, PropertyInfo propertyInfo)
{
// there must be a getter defined:
if (!propertyInfo.CanWrite)
{
return;
}
JSonIgnoreAttribute ignore = ReflectionHelper.GetCustomAttribute <JSonIgnoreAttribute>(propertyInfo);
if (ignore != null)
{
return;
}
JSonMemberAttribute attr = ReflectionHelper.GetCustomAttribute <JSonMemberAttribute>(propertyInfo);
if (attr == null && !jsonAttribute.AllowAllProperties)
{
return;
}
string name = attr != null && !string.IsNullOrEmpty(attr.Name) ? attr.Name : propertyInfo.Name;
Type type = attr != null && attr.ReadAs != null ? attr.ReadAs : propertyInfo.PropertyType;
if (source.Contains(name))
{
propertyInfo.SetValue(destination, ToObject(source[name], type), null);
}
else
if (attr != null)
{
if (attr.DefaultValue != null)
{
propertyInfo.SetValue(destination, ToObject(attr.DefaultValue, type), null);
}
else
if (!attr.SuppressThrowWhenMissing && !attr.SkipWhenNull)
{
throw new JSonMemberMissingException("Missing required property", oType, name);
}
}
else
if (!jsonAttribute.SuppressThrowWhenMissing)
{
throw new JSonMemberMissingException("Property value not provided", oType, name);
}
}
private static void ToObjectSetField(IJSonObject source, object destination, Type oType, JSonSerializableAttribute jsonAttribute, FieldInfo fieldInfo)
{
if (fieldInfo.IsLiteral)
{
return;
}
JSonIgnoreAttribute ignore = ReflectionHelper.GetCustomAttribute <JSonIgnoreAttribute>(fieldInfo);
if (ignore != null)
{
return;
}
JSonMemberAttribute attr = ReflectionHelper.GetCustomAttribute <JSonMemberAttribute>(fieldInfo);
if (attr == null && !jsonAttribute.AllowAllFields)
{
return;
}
string name = attr != null && !string.IsNullOrEmpty(attr.Name) ? attr.Name : fieldInfo.Name;
Type type = attr != null && attr.ReadAs != null ? attr.ReadAs : fieldInfo.FieldType;
if (source.Contains(name))
{
fieldInfo.SetValue(destination, ToObject(source[name], type));
}
else
if (attr != null)
{
if (attr.DefaultValue != null)
{
fieldInfo.SetValue(destination, ToObject(attr.DefaultValue, type));
}
else
if (!attr.SuppressThrowWhenMissing && !attr.SkipWhenNull)
{
throw new JSonMemberMissingException("Missing required field", oType, name);
}
}
else
if (!jsonAttribute.SuppressThrowWhenMissing)
{
throw new JSonMemberMissingException("Field value not provided", oType, name);
}
}
