private static void AddAnnotationIfDoesntExist(AnnotatedItem payload, AttributeAnnotation annotation)
{
var exists = payload.Annotations.OfType<AttributeAnnotation>().Any(a =>
{
ExceptionUtilities.CheckObjectNotNull(a.Content, "Content expected for attribute");
return a.Content.Name.Equals(annotation.Content.Name);
});
if (!exists)
{
payload.Annotations.Add(annotation);
}
}
private Annotation ConvertSingleAnnotation(AttributeAnnotation annotation)
{
if (annotation.Content == null)
{
return annotation;
}
if (annotation.Content.Name.Namespace == EdmConstants.AnnotationNamespace && annotation.Content.Name.LocalName == "StoreGeneratedPattern")
{
if (annotation.Content.Value == StoreGeneratedPatternAnnotation.None.Name)
{
return StoreGeneratedPatternAnnotation.None;
}
else if (annotation.Content.Value == StoreGeneratedPatternAnnotation.Identity.Name)
{
return StoreGeneratedPatternAnnotation.Identity;
}
else
{
ExceptionUtilities.Assert(annotation.Content.Value == StoreGeneratedPatternAnnotation.Computed.Name, "Unrecognized store generated annotation: '{0}'", annotation.Content.Value);
return StoreGeneratedPatternAnnotation.Computed;
}
}
if (annotation.Content.Name.Namespace != EdmConstants.TaupoAnnotationsNamespace)
{
return annotation;
}
Type annotationType = this.FindAnnotationType(annotation.Content.Name);
if (annotationType == null)
{
return annotation;
}
// if the type can do custom serialization...
if (typeof(ICustomAnnotationSerializer).IsAssignableFrom(annotationType))
{
// since this interface is implemented, we also expect a constructor
// which takes an XAttribute to be there, so let's just invoke it
// on our XAttribute
return (Annotation)Activator.CreateInstance(annotationType, annotation.Content);
}
// if it is a tag, just create instance of that class
if (typeof(TagAnnotation).IsAssignableFrom(annotationType))
{
return (Annotation)Activator.CreateInstance(annotationType);
}
// otherwise return the original
return annotation;
}