/**
* Loads a known Saga instance by its unique identifier. Returned Sagas must be {@link #commit(Saga) committed}
* after processing.
* Due to the concurrent nature of Sagas, it is not unlikely for a Saga to have ceased to exist after it has been
* found based on associations. Therefore, a repository should return <code>null</code> in case a Saga doesn't
* exists, as opposed to throwing an exception.
*
* @param string $sagaIdentifier The unique identifier of the Saga to load
* @return SagaInterface The Saga instance, or <code>null</code> if no such saga exists
*/
public function load($sagaIdentifier)
{
$dbSaga = $this->mongoTemplate->sagaCollection()->findOne(SagaEntry::queryByIdentifier($sagaIdentifier));
if (null === $dbSaga) {
return null;
}
$serializedSaga = new SimpleSerializedObject($dbSaga[SagaEntry::SERIALIZED_SAGA], new SimpleSerializedType($dbSaga[SagaEntry::SAGA_TYPE]));
$saga = $this->serializer->deserialize($serializedSaga);
if (null !== $this->injector) {
$this->injector->injectResources($saga);
}
return $saga;
}
public function load($sagaId)
{
try {
$result = $this->entityManager->createQuery("SELECT se FROM Governor\\Framework\\Saga\\Repository\\Orm\\SagaEntry se WHERE se.sagaId = :sagaId")->setParameter(":sagaId", $sagaId)->getSingleResult();
$serializedSaga = new SerializedSaga($result->getSerializedSaga(), new SimpleSerializedType($result->getSagaType(), $result->getRevision()));
$loadedSaga = $this->serializer->deserialize($serializedSaga);
if (null !== $this->injector) {
$this->injector->injectResources($loadedSaga);
}
$this->logger->debug("Loaded saga id [{id}] of type [{type}]", array('id' => $sagaId, 'type' => get_class($loadedSaga)));
return $loadedSaga;
} catch (NoResultException $ex) {
return null;
}
}
