/// <summary>
/// Gets the <see cref="EntityType"/> of the specified entry or feed payload element.
/// </summary>
/// <param name="payloadElement">The payload element to get the entity type for.</param>
/// <param name="model">The model to find the entity type in.</param>
/// <returns>The <see cref="EntityType"/> of the <paramref name="payloadElement"/>.</returns>
public static IEdmEntityType GetPayloadElementEntityType(ODataPayloadElement payloadElement, IEdmModel model)
{
ExceptionUtilities.CheckArgumentNotNull(payloadElement, "payloadElement");
ExceptionUtilities.CheckArgumentNotNull(model, "model");
ODataPayloadKind payloadKind = payloadElement.GetPayloadKindFromPayloadElement();
ExceptionUtilities.Assert(
payloadKind == ODataPayloadKind.Resource || payloadKind == ODataPayloadKind.ResourceSet,
"Can only determine entity type for entry or feed payloads.");
EntityModelTypeAnnotation typeAnnotation = payloadElement.GetAnnotation <EntityModelTypeAnnotation>();
if (typeAnnotation != null)
{
var entityDataType = typeAnnotation.EdmModelType;
Debug.Assert(entityDataType != null, "entityDataType != null");
return(model.EntityTypes().Single(et => et.FullName() == entityDataType.FullName()));
}
string entityTypeName;
if (payloadKind == ODataPayloadKind.Resource)
{
EntityInstance entity = payloadElement as EntityInstance;
Debug.Assert(entity != null, "entity != null");
entityTypeName = entity.FullTypeName;
return(model.EntityTypes().Single(et => et.TestFullName() == entityTypeName));
}
else
{
//if feed has entries figure out type otherwise use first entity type
EntitySetInstance feed = payloadElement as EntitySetInstance;
Debug.Assert(feed != null, "feed != null");
if (feed.Count > 0)
{
return(model.EntityTypes().Single(et => et.TestFullName() == ((TypedValue)feed.First()).FullTypeName));
}
else
{
return(model.EntityTypes().First());
}
}
}
