/**
  * Reads the data and constructs the suitable EventMessageInterface implementation.
  *
  * @param mixed $data Input data.
  * @return GenericDomainEventMessage|GenericEventMessage
  */
 public function readEventMessage($data)
 {
     $raw = unpack("ntype/a36identifier/Ntimestamp", $data);
     $offset = 42;
     if ($raw['type'] === 3) {
         $raw = array_merge($raw, unpack("a36aggregateIdentifier/Nscn", substr($data, $offset)));
         $offset += 40;
     }
     $this->read($raw, $offset, $data, "payloadType");
     $this->read($raw, $offset, $data, "payload");
     $this->read($raw, $offset, $data, "meta");
     $serializedPayload = new SimpleSerializedObject($raw['payload'], new SimpleSerializedType($raw['payloadType']));
     $serializedMetadata = new SimpleSerializedObject($raw['meta'], new SimpleSerializedType(MetaData::class));
     $dateTime = \DateTime::createFromFormat('U', $raw['timestamp']);
     $dateTime->setTimezone(new \DateTimeZone(date_default_timezone_get()));
     if (3 === $raw['type']) {
         return new GenericDomainEventMessage($raw['aggregateIdentifier'], $raw['scn'], $this->serializer->deserialize($serializedPayload), $this->serializer->deserialize($serializedMetadata), $raw['identifier'], $dateTime);
     } else {
         return new GenericEventMessage($this->serializer->deserialize($serializedPayload), $this->serializer->deserialize($serializedMetadata), $raw['identifier'], $dateTime);
     }
 }
 public function readEvents($type, $identifier)
 {
     $snapshotScn = -1;
     $snapshotEvent = null;
     $lastSnapshotEvent = $this->entryStore->loadLastSnapshotEvent($type, $identifier, $this->entityManager);
     if (null !== $lastSnapshotEvent) {
         try {
             $snapshotEvent = new GenericDomainEventMessage($identifier, $lastSnapshotEvent->getScn(), $this->serializer->deserialize($lastSnapshotEvent->getPayload()), $this->serializer->deserialize($lastSnapshotEvent->getMetaData()));
             $snapshotScn = $snapshotEvent->getScn();
         } catch (\RuntimeException $ex) {
             $this->logger->warn("Error while reading snapshot event entry. " . "Reconstructing aggregate on entire event stream. Caused by: {class} {message}", array('class' => get_class($ex), 'message' => $ex->getMessage()));
         }
     }
     $entries = $this->entryStore->fetchAggregateStream($type, $identifier, $snapshotScn, $this->batchSize, $this->entityManager);
     if ($snapshotEvent === null && !$entries->valid()) {
         throw new EventStreamNotFoundException($type, $identifier);
     }
     return new OrmDomainEventStream($this->serializer, $entries, $identifier, $snapshotEvent);
 }