/// <summary>
/// Gets all the types in the types's hierarchy. This includes both the base types, the derived types, and the starting type.
/// </summary>
/// <param name="startingType">The starting type.</param>
/// <returns>The types derived from or base of the starting type.</returns>
public IEnumerable <ResourceType> GetAllTypesInHierarchy(ResourceType startingType)
{
var types = startingType.BaseTypesAndSelf();
// TODO: should we be caching these calls?
if (this.provider.HasDerivedTypes(startingType))
{
types = types.Concat(this.provider.GetDerivedTypes(startingType));
}
return(types);
}
/// <summary>
/// Gets the set of operations selected for types the instance type can be assigned to that are bindable to the instance type.
/// </summary>
/// <param name="instanceTypeBeingSerialized">The instance type being serialized.</param>
/// <returns>The selected bindable operations.</returns>
private List <OperationWrapper> GetSelectedAndBindableOperationsForAssignableTypes(ResourceType instanceTypeBeingSerialized)
{
IEnumerable <OperationWrapper> selectedOperations = Enumerable.Empty <OperationWrapper>();
// Gather up all the selected operations that were selected for types that this instance type is assignable from.
foreach (var baseType in instanceTypeBeingSerialized.BaseTypesAndSelf())
{
List <OperationWrapper> selectedOperationsForUriType;
if (this.selectedOperationsByUriType.TryGetValue(baseType, out selectedOperationsForUriType))
{
selectedOperations = selectedOperations.Concat(selectedOperationsForUriType);
}
}
// Only return the operations that are actually bindable to the instance type.
// this filtering is needed because the key for something like Person will include actions bound to Employee and Manager as well,
// so that something like ?$select=ActionName will match a varying set of actions based on which instance type is being serialized.
selectedOperations = selectedOperations.Where(o => o.BindingParameter.ParameterType.IsAssignableFrom(instanceTypeBeingSerialized));
// Ensure the set is distinct before caching it.
selectedOperations = selectedOperations.Distinct();
return(selectedOperations.ToList());
}
/// <summary>
/// Gets a collection of actions having <paramref name="bindingParameterType"/> or any of it's base types as the binding parameter type.
/// </summary>
/// <param name="bindingParameterType">Instance of the binding parameter resource type (<see cref="ResourceType"/>) in question.</param>
/// <returns>A list of actions having <paramref name="bindingParameterType"/> as the binding parameter type.</returns>
internal List <OperationWrapper> GetServiceActionsByBindingParameterType(ResourceType bindingParameterType)
{
Debug.Assert(bindingParameterType != null, "bindingParameterType != null");
Debug.Assert(bindingParameterType.ResourceTypeKind == ResourceTypeKind.EntityType, "Only entity types should be passed to this method.");
return(this.GetServiceActionsBySpecificBindingParameterTypes(bindingParameterType.BaseTypesAndSelf()));
}
