/**
* Takes a snapshot
* @param StreamName $streamName
* @param AggregateRootInterface $aggregate
* @param DomainMessage $message - The domain message
* @return bool
*/
public function take(StreamName $streamName, AggregateRootInterface $aggregate, DomainMessage $message)
{
$id = $aggregate->getAggregateRootId();
if (!$this->strategy->isFulfilled($streamName, $aggregate)) {
return false;
}
if (!$this->snapshotStore->has($id, $message->getVersion())) {
$this->snapshotStore->save(Snapshot::take($id, $aggregate, $message->getVersion()));
}
return true;
}
/**
* {@inheritDoc}
*/
public function save(AggregateRootInterface $aggregate, StreamName $streamName = null)
{
$streamName = $this->determineStreamName($streamName);
$eventStream = new EventStream($streamName, $aggregate->getUncommittedEvents());
$this->eventStore->append($eventStream);
$eventStream->each(function (DomainMessage $domainMessage) {
$this->eventBus->publish($domainMessage->getPayload());
})->each(function (DomainMessage $domainMessage) use($streamName, $aggregate) {
if ($this->snapshotter) {
$this->snapshotter->take($streamName, $aggregate, $domainMessage);
}
});
}
/**
* @inheritdoc
*/
public function isFulfilled(StreamName $streamName, AggregateRootInterface $aggregate)
{
$countOfEvents = $this->eventStore->countEventsFor($streamName, $aggregate->getAggregateRootId());
return $countOfEvents && $countOfEvents % $this->count === 0;
}
