public static JsonEnumerableConverter GetEnumerableConverter(
Type parentClassType,
PropertyInfo propertyInfo,
Type propertyType,
JsonSerializerOptions options)
{
Type enumerableType;
if (propertyType.IsGenericType)
{
enumerableType = propertyType.GetGenericTypeDefinition();
}
else if (propertyType.IsArray)
{
enumerableType = typeof(Array);
}
else
{
enumerableType = propertyType;
}
JsonEnumerableConverterAttribute attr = null;
if (propertyInfo != null)
{
// Use Property first
attr = options.GetAttributes <JsonEnumerableConverterAttribute>(propertyInfo).Where(a => a.EnumerableType == enumerableType).FirstOrDefault();
}
if (attr == null)
{
// Then class type
attr = options.GetAttributes <JsonEnumerableConverterAttribute>(parentClassType, inherit: true).Where(a => a.EnumerableType == enumerableType).FirstOrDefault();
if (attr == null)
{
// Then declaring assembly
attr = options.GetAttributes <JsonEnumerableConverterAttribute>(parentClassType.Assembly).Where(a => a.EnumerableType == enumerableType).FirstOrDefault();
if (attr == null)
{
// Then global
attr = options.GetAttributes <JsonEnumerableConverterAttribute>(JsonSerializerOptions.GlobalAttributesProvider).Where(a => a.EnumerableType == enumerableType).FirstOrDefault();
// Then default
if (enumerableType == typeof(Array))
{
attr = s_arrayConverterAttibute;
}
}
}
}
if (attr != null)
{
return(attr.CreateConverter());
}
return(null);
}
public static TAttribute GetPolicy <TAttribute>(
Type parentClassType,
PropertyInfo propertyInfo,
JsonSerializerOptions options) where TAttribute : Attribute
{
TAttribute attr = null;
if (propertyInfo != null)
{
// Use Property first
attr = options.GetAttributes <TAttribute>(propertyInfo).FirstOrDefault();
}
if (attr == null)
{
// Then class type
attr = options.GetAttributes <TAttribute>(parentClassType, inherit: true).FirstOrDefault();
if (attr == null)
{
// Then declaring assembly
attr = options.GetAttributes <TAttribute>(parentClassType.Assembly).FirstOrDefault();
if (attr == null)
{
// Then global
attr = options.GetAttributes <TAttribute>(JsonSerializerOptions.GlobalAttributesProvider).FirstOrDefault();
}
}
}
return(attr);
}
private static PropertyValueConverterAttribute GetPropertyValueConverterInternal(
Type parentClassType,
PropertyInfo propertyInfo,
JsonSerializerOptions options,
Type propertyType)
{
if (propertyType.IsGenericType && propertyType.GetGenericTypeDefinition() == typeof(Nullable <>))
{
propertyType = Nullable.GetUnderlyingType(propertyType);
}
PropertyValueConverterAttribute attr = null;
if (propertyInfo != null)
{
// Use Property first
attr = options.GetAttributes <PropertyValueConverterAttribute>(propertyInfo).Where(a => a.PropertyType == propertyType).FirstOrDefault();
if (attr == null)
{
// Then class type
attr = options.GetAttributes <PropertyValueConverterAttribute>(parentClassType, inherit: true).Where(a => a.PropertyType == propertyType).FirstOrDefault();
if (attr == null)
{
// Then declaring assembly
attr = options.GetAttributes <PropertyValueConverterAttribute>(parentClassType.Assembly).Where(a => a.PropertyType == propertyType).FirstOrDefault();
if (attr == null)
{
// Then global
attr = options.GetAttributes <PropertyValueConverterAttribute>(JsonSerializerOptions.GlobalAttributesProvider).Where(a => a.PropertyType == propertyType).FirstOrDefault();
if (attr == null)
{
// Then default
if (propertyType == typeof(DateTime))
{
attr = DefaultConverters.s_dateConverterAttibute;
}
}
}
}
}
}
return(attr);
}
public static TValue GetPropertyClassAssemblyPolicy <TValue>(
Type parentClassType,
PropertyInfo propertyInfo,
JsonSerializerOptions options,
Func <JsonPropertyValueAttribute, TValue> selector)
{
TValue value;
JsonPropertyValueAttribute attr = null;
if (propertyInfo != null)
{
// Use Property first
attr = options.GetAttributes <JsonPropertyValueAttribute>(propertyInfo).FirstOrDefault();
}
if (attr == null || (value = selector(attr)) == default)
{
// Then class type
attr = options.GetAttributes <JsonPropertyValueAttribute>(parentClassType, inherit: true).FirstOrDefault();
if (attr == null || (value = selector(attr)) == default)
{
// Then declaring assembly
attr = options.GetAttributes <JsonPropertyValueAttribute>(parentClassType.Assembly).FirstOrDefault();
if (attr == null || (value = selector(attr)) == default)
{
// Then global
attr = options.GetAttributes <JsonPropertyValueAttribute>(JsonSerializerOptions.GlobalAttributesProvider).FirstOrDefault();
if (attr == null)
{
value = default;
}
else
{
value = selector(attr);
}
}
}
}
return(value);
}
