How to read "status detail" from a catalog request

Hi All,

How to get "Status Detail" from a catalogItemRequest object. I have a  ASD service which invokes catalog Item blueprint. The ASD service loops through till catalogItemRequest status is "STOPPED". If the state is "Failed" then need to get "Status Detail" as why it failed from the request. The status detail is displayed in VCAC portal for the request.

Any help appreciated.

Thanks