/**
  * Create new account owner signature object
  *
  * @param DocumentSignature $documentSignature
  * @param AccountOwnerInterface $owner
  * @param string $status
  * @return DocumentOwnerSignature
  */
 public function createOwnerSignature(DocumentSignature $documentSignature, AccountOwnerInterface $owner, $status = DocumentOwnerSignature::STATUS_CREATED)
 {
     $signature = new DocumentOwnerSignature();
     $signature->setDocumentSignature($documentSignature);
     $signature->setStatus($status);
     $ownerObject = $owner->getObjectToSave();
     if ($ownerObject instanceof User && $ownerObject->hasRole('ROLE_CLIENT')) {
         $signature->setClientOwner($ownerObject);
     } elseif ($ownerObject instanceof ClientAdditionalContact) {
         $signature->setContactOwner($ownerObject);
     }
     return $signature;
 }