public static T ToObject <T>(this IDictionary <string, object> source, ITypeCache typeCache, bool dynamicObject = false)
where T : class
{
if (typeCache == null)
{
throw new ArgumentNullException(nameof(typeCache));
}
if (source == null)
{
return(default(T));
}
if (typeCache.IsTypeAssignableFrom(typeof(IDictionary <string, object>), typeof(T)))
{
return(source as T);
}
if (typeof(T) == typeof(ODataEntry))
{
return(CreateODataEntry(source, typeCache, dynamicObject) as T);
}
if (typeof(T) == typeof(string) || typeCache.IsValue(typeof(T)))
{
throw new InvalidOperationException($"Unable to convert structural data to {typeof(T).Name}.");
}
return((T)ToObject(source, typeCache, typeof(T), dynamicObject));
}
private static bool IsCollectionType(Type type, ITypeCache typeCache, object itemValue)
{
return
((type.IsArray || typeCache.IsGeneric(type) &&
typeCache.IsTypeAssignableFrom(typeof(System.Collections.IEnumerable), type)) &&
(itemValue as System.Collections.IEnumerable) != null);
}
public static bool TryConvert(this ITypeCache typeCache, object value, Type targetType, out object result)
{
try
{
if (value == null)
{
result = typeCache.IsValue(targetType) ? Activator.CreateInstance(targetType) : null;
}
else if (typeCache.IsTypeAssignableFrom(targetType, value.GetType()))
{
result = value;
}
else if (targetType == typeof(string))
{
result = value.ToString();
}
else if (typeCache.IsEnumType(targetType) && value is string)
{
result = Enum.Parse(targetType, value.ToString(), true);
}
else if (targetType == typeof(byte[]) && value is string)
{
result = System.Convert.FromBase64String(value.ToString());
}
else if (targetType == typeof(string) && value is byte[] bytes)
{
result = System.Convert.ToBase64String(bytes);
}
else if ((targetType == typeof(DateTime) || targetType == typeof(DateTime?)) && value is DateTimeOffset offset)
{
result = offset.DateTime;
}
else if ((targetType == typeof(DateTimeOffset) || targetType == typeof(DateTimeOffset?)) && value is DateTime time)
{
result = new DateTimeOffset(time);
}
else if (typeCache.IsEnumType(targetType))
{
result = Enum.ToObject(targetType, value);
}
else if (targetType == typeof(Guid) && value is string)
{
result = new Guid(value.ToString());
}
else if (Nullable.GetUnderlyingType(targetType) != null)
{
result = typeCache.Convert(value, Nullable.GetUnderlyingType(targetType));
}
else
{
result = System.Convert.ChangeType(value, targetType, CultureInfo.InvariantCulture);
}
return(true);
}
catch (Exception)
{
result = null;
return(false);
}
}
private static IDictionary <string, object> CreateDynamicPropertiesContainer(Type type, ITypeCache typeCache, object instance, string dynamicPropertiesContainerName)
{
var property = typeCache.GetNamedProperty(type, dynamicPropertiesContainerName);
if (property == null)
{
throw new ArgumentException($"Type {type} does not have property {dynamicPropertiesContainerName} ");
}
if (!typeCache.IsTypeAssignableFrom(typeof(IDictionary <string, object>), property.PropertyType))
{
throw new InvalidOperationException($"Property {dynamicPropertiesContainerName} must implement IDictionary<string,object> interface");
}
var dynamicProperties = new Dictionary <string, object>();
property.SetValue(instance, dynamicProperties, null);
return(dynamicProperties);
}
private static object ConvertCollection(Type type, ITypeCache typeCache, object itemValue)
{
var elementType = type.IsArray
? type.GetElementType()
: typeCache.IsGeneric(type) && typeCache.GetGenericTypeArguments(type).Length == 1
? typeCache.GetGenericTypeArguments(type)[0]
: null;
if (elementType == null)
{
return(null);
}
var count = GetCollectionCount(itemValue);
var arrayValue = Array.CreateInstance(elementType, count);
count = 0;
foreach (var item in (itemValue as System.Collections.IEnumerable))
{
arrayValue.SetValue(ConvertSingle(elementType, typeCache, item), count++);
}
if (type.IsArray || typeCache.IsTypeAssignableFrom(type, arrayValue.GetType()))
{
return(arrayValue);
}
else
{
var collectionTypes = new []
{
typeof(IList <>).MakeGenericType(elementType),
typeof(IEnumerable <>).MakeGenericType(elementType)
};
var collectionType = type.GetConstructor(new [] { collectionTypes[0] }) != null
? collectionTypes[0]
: collectionTypes[1];
var activator = _collectionActivators.GetOrAdd(new Tuple <Type, Type>(type, collectionType), t => type.CreateActivator(collectionType));
return(activator?.Invoke(arrayValue));
}
}
public static object ToObject(this IDictionary <string, object> source, ITypeCache typeCache, Type type, bool dynamicObject = false)
{
if (typeCache == null)
{
throw new ArgumentNullException(nameof(typeCache));
}
if (source == null)
{
return(null);
}
if (typeCache.IsTypeAssignableFrom(typeof(IDictionary <string, object>), type))
{
return(source);
}
if (type == typeof(ODataEntry))
{
return(CreateODataEntry(source, typeCache, dynamicObject));
}
// Check before custom converter so we use the most appropriate type.
if (source.ContainsKey(FluentCommand.AnnotationsLiteral))
{
type = GetTypeFromAnnotation(source, typeCache, type);
}
if (typeCache.Converter.HasDictionaryConverter(type))
{
return(typeCache.Converter.Convert(source, type));
}
if (type.HasCustomAttribute(typeof(CompilerGeneratedAttribute), false))
{
return(CreateInstanceOfAnonymousType(source, type, typeCache));
}
var instance = CreateInstance(type);
IDictionary <string, object> dynamicProperties = null;
var dynamicPropertiesContainerName = typeCache.DynamicContainerName(type);
if (!string.IsNullOrEmpty(dynamicPropertiesContainerName))
{
dynamicProperties = CreateDynamicPropertiesContainer(type, typeCache, instance, dynamicPropertiesContainerName);
}
foreach (var item in source)
{
var property = FindMatchingProperty(type, typeCache, item);
if (property != null && property.CanWrite)
{
if (item.Value != null)
{
property.SetValue(instance, ConvertValue(property.PropertyType, typeCache, item.Value), null);
}
}
else
{
dynamicProperties?.Add(item.Key, item.Value);
}
}
return(instance);
}
public static object ToObject(this IDictionary <string, object> source, ITypeCache typeCache, Type type, bool dynamicObject = false)
{
if (typeCache == null)
{
throw new ArgumentNullException(nameof(typeCache));
}
if (source == null)
{
return(null);
}
if (typeCache.IsTypeAssignableFrom(typeof(IDictionary <string, object>), type))
{
return(source);
}
if (type == typeof(ODataEntry))
{
return(CreateODataEntry(source, typeCache, dynamicObject));
}
// Check before custom converter so we use the most appropriate type.
if (source.ContainsKey(FluentCommand.AnnotationsLiteral))
{
var annotations = source[FluentCommand.AnnotationsLiteral] as ODataEntryAnnotations;
var odataType = annotations?.TypeName;
if (!string.IsNullOrEmpty(odataType))
{
// TODO: We could cast the ITypeCatcher to TypeCache and use it's property but it's a bit naughty - conditional?
var resolver = ODataNameMatchResolver.NotStrict;
if (!resolver.IsMatch(odataType, type.Name))
{
// Ok, something other than the base type, see if we can match it
var derived = typeCache.GetDerivedTypes(type).FirstOrDefault(x => resolver.IsMatch(odataType, typeCache.GetMappedName(x)));
if (derived != null)
{
// Use the derived type from now on
type = derived;
}
else
{
// TODO: Should we throw an exception here or log a warning here as we don't understand the data
}
}
}
}
if (typeCache.Converter.HasDictionaryConverter(type))
{
return(typeCache.Converter.Convert(source, type));
}
var instance = CreateInstance(type);
IDictionary <string, object> dynamicProperties = null;
var dynamicPropertiesContainerName = typeCache.DynamicContainerName(type);
if (!string.IsNullOrEmpty(dynamicPropertiesContainerName))
{
dynamicProperties = CreateDynamicPropertiesContainer(type, typeCache, instance, dynamicPropertiesContainerName);
}
foreach (var item in source)
{
var property = FindMatchingProperty(type, typeCache, item);
if (property != null && property.CanWrite)
{
if (item.Value != null)
{
property.SetValue(instance, ConvertValue(property.PropertyType, typeCache, item.Value), null);
}
}
else
{
dynamicProperties?.Add(item.Key, item.Value);
}
}
return(instance);
}
