private EvaluationResult callHelper ( URI type , URI id , URI issuer , URI category , int adType ) { if ( finder != null ) { return finder . findAttribute ( type , id , issuer , category , this , adType ) ; } else { logger . warn ( NO_FINDER_MSG ) ; return new EvaluationResult ( BagAttribute . createEmptyBag ( type ) ) ; } }
Private helper that calls the finder if it s non - null or else returns an empty bag