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[scala] result code: use exceptions internally
def processRequestWithException(userId: UUID, requestId: UUID): BusinessResult = {
case class BusinessException(result: BusinessResult) extends RuntimeException
try {
val user = getUser(userId).getOrElse(throw new BusinessException(BusinessResult.UserNotFound))
val request = getRequestById(requestId).getOrElse(throw new BusinessException(BusinessResult.RequestNotFound))
checkAccess(request, user).toOption.getOrElse(throw new BusinessException(BusinessResult.NotOwner))
} catch {
case be: BusinessException => be.result
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