private ProxyModelMetadataCacheEntry GetMetadataCacheEntryForObjectType()
{
var key = ProxyModelMetadataIdentity.ForType(typeof(object));
var entry = CreateCacheEntry(key);
return(entry);
}
public ProxyModelMetadata(ProxyModelMetadataIdentity identity, Type reflectedType = null)
{
_reflectedType = reflectedType;
Identity = identity;
Properties = new List <ProxyModelMetadata>();
InitializeTypeInformation();
}
private ProxyModelMetadataCacheEntry GetCacheEntry(Type modelType)
{
ProxyModelMetadataCacheEntry cacheEntry;
if (modelType == typeof(object))
{
cacheEntry = _metadataCacheEntryForObjectType;
}
else
{
var key = ProxyModelMetadataIdentity.ForType(modelType);
cacheEntry = _typeCache.GetOrAdd(key, _cacheEntryFactory);
}
return(cacheEntry);
}
private void TrySetSystemObjectValue(string key,
PropertyInfo propertyInfo,
string propertyName,
Type containerType,
ModelDictionaryResult result,
object value)
{
var objModelMetadata = new ProxyModelMetadata(propertyInfo,
ProxyModelMetadataIdentity.ForProperty(value.GetType(),
propertyName,
containerType));
if (objModelMetadata.IsSimpleType)
{
result.Dictionary.Add(key, Convert.ToString(value));
return;
}
if (objModelMetadata.IsEnumerableType)
{
if (objModelMetadata.ElementType.IsSimpleType)
{
SetSimpleEnumerable(key, result.Dictionary, value);
}
else
{
TrySetValueInner(key, objModelMetadata, result, value);
}
return;
}
// Anonymous object resolver
for (int i = 0; i < objModelMetadata.Properties.Count; i++)
{
var modelMetadata = objModelMetadata.Properties[i];
var v = modelMetadata.PropertyInfo.GetValue(value);
if (v != null)
{
ResolveInternal(modelMetadata, result, v, isTopLevelObject: false, prefix: key);
}
}
}
internal ProxyModelMetadata(PropertyInfo propertyInfo, ProxyModelMetadataIdentity identity, Type reflectedType = null)
: this(identity, reflectedType)
{
PropertyInfo = propertyInfo;
}
private void InitializeTypeInformation()
{
var typeInfo = ModelType.GetTypeInfo();
IsComplexType = !TypeDescriptor.GetConverter(ModelType).CanConvertFrom(typeof(string));
IsNullableValueType = Nullable.GetUnderlyingType(ModelType) != null;
IsReferenceType = !typeInfo.IsValueType;
IsReferenceOrNullableType = !typeInfo.IsValueType || IsNullableValueType;
UnderlyingOrModelType = Nullable.GetUnderlyingType(ModelType) ?? ModelType;
IsFormFile = typeof(IFormFile).IsAssignableFrom(ModelType);
IsSimpleType = IsSimple(ModelType);
IsSystemObject = ModelType == typeof(object);
var collectionType = ClosedGenericMatcher.ExtractGenericInterface(ModelType, typeof(ICollection <>));
IsCollectionType = collectionType != null;
if (ModelType == typeof(string) || !typeof(IEnumerable).IsAssignableFrom(ModelType))
{
// Do nothing, not Enumerable.
}
else if (ModelType.IsArray)
{
IsEnumerableType = true;
var elementType = ModelType.GetElementType();
PropertyInfo propertyInfo = ContainerType?.GetProperty(PropertyName);
if (propertyInfo != null)
{
ElementType = new ProxyModelMetadata(propertyInfo,
ProxyModelMetadataIdentity.ForProperty(elementType, propertyInfo.Name, ModelType),
reflectedType: _reflectedType);
}
IsFormFile = typeof(IFormFile).IsAssignableFrom(elementType);
}
else
{
IsEnumerableType = true;
var enumerableType = ClosedGenericMatcher.ExtractGenericInterface(ModelType, typeof(IEnumerable <>));
var elementType = enumerableType?.GenericTypeArguments[0];
if (elementType != null)
{
IsFormFile = typeof(IFormFile).IsAssignableFrom(elementType);
}
if (elementType == null)
{
// ModelType implements IEnumerable but not IEnumerable<T>.
elementType = typeof(object);
}
PropertyInfo propertyInfo = ContainerType?.GetProperty(PropertyName);
if (propertyInfo != null)
{
ElementType = new ProxyModelMetadata(propertyInfo,
ProxyModelMetadataIdentity.ForProperty(elementType, propertyInfo.Name, ModelType),
reflectedType: _reflectedType);
}
}
if (IsNullableValueType)
{
var elementType = Nullable.GetUnderlyingType(ModelType);
PropertyInfo pInfo = ContainerType?.GetProperty(PropertyName);
if (pInfo != null)
{
ElementType = new ProxyModelMetadata(pInfo,
ProxyModelMetadataIdentity.ForProperty(elementType, pInfo.Name, ModelType),
reflectedType: _reflectedType);
}
}
if (IsComplexType && IsReferenceOrNullableType &&
(!IsEnumerableType && !IsCollectionType) &&
ModelType.Name != typeof(object).Name)
{
PropertyInfo[] properties = ModelType.GetProperties();
List <ProxyModelMetadata> metadataList = new List <ProxyModelMetadata>();
foreach (var prop in properties)
{
if (_reflectedType == null)
{
_reflectedType = prop.ReflectedType;
}
if (_reflectedType == prop.PropertyType)
{
// self reference loop
continue;
}
if (ModelType == prop.PropertyType)
{
// Parent child ref - self reference loop
continue;
}
metadataList.Add(new ProxyModelMetadata(prop,
ProxyModelMetadataIdentity.ForProperty(prop.PropertyType, prop.Name, ModelType),
reflectedType: _reflectedType));
}
Properties = metadataList;
}
}
private ProxyModelMetadataCacheEntry GetCacheEntry(ParameterInfo parameter)
{
return(_typeCache.GetOrAdd(
ProxyModelMetadataIdentity.ForParameter(parameter),
_cacheEntryFactory));
}
private ProxyModelMetadataCacheEntry CreateCacheEntry(ProxyModelMetadataIdentity key)
{
var metadata = new ProxyModelMetadata(key);
return(new ProxyModelMetadataCacheEntry(metadata));
}
