/**
  * @param LifecycleEventArgs $args
  */
 public function postUpdate(LifecycleEventArgs $args)
 {
     $document = $args->getDocument();
     try {
         $doctrineChangeSet = $args->getDocumentManager()->getUnitOfWork()->getDocumentChangeSet($document);
         if (count($this->solr->computeChangeSet($doctrineChangeSet, $document)) === 0) {
             return;
         }
         $this->solr->updateDocument($document);
     } catch (\RuntimeException $e) {
         $this->logger->debug($e->getMessage());
     }
 }
 /**
  * @param LifecycleEventArgs $args
  *
  * @return bool
  */
 private function hasChanged(LifecycleEventArgs $args)
 {
     $entity = $args->getEntity();
     $doctrineChangeSet = $args->getEntityManager()->getUnitOfWork()->getEntityChangeSet($entity);
     return count($this->solr->computeChangeSet($doctrineChangeSet, $entity)) > 0;
 }