/**
* Writes the given snapshotEvent to the {@link #snapshotEventFile}.
* Prepends a long value to the event in the file indicating the bytes to skip when reading the {@link #eventFile}.
*
* @param DomainEventMessageInterface $snapshotEvent The snapshot to write to the {@link #snapshotEventFile}
* @throws EventStoreException
*/
public function writeSnapshotEvent(DomainEventMessageInterface $snapshotEvent)
{
try {
$offset = $this->calculateOffset($snapshotEvent);
$this->snapshotEventFile->fwrite(pack("N", $offset));
$eventMessageWriter = new FilesystemEventMessageWriter($this->snapshotEventFile, $this->eventSerializer);
$eventMessageWriter->writeEventMessage($snapshotEvent);
} catch (\Exception $ex) {
throw new EventStoreException("Error writing a snapshot event", 0, $ex);
}
}
public function appendEvents($type, DomainEventStreamInterface $events)
{
if (!$events->hasNext()) {
return;
}
$next = $events->peek();
if (0 === $next->getScn() && $this->fileResolver->eventFileExists($type, $next->getAggregateIdentifier())) {
throw new ConflictingModificationException(sprintf("Could not create event stream for aggregate, such stream " . "already exists, type=%s, id=%s", $type, $next->getAggregateIdentifier()));
}
$file = $this->fileResolver->openEventFileForWriting($type, $next->getAggregateIdentifier());
$eventMessageWriter = new FilesystemEventMessageWriter($file, $this->serializer);
while ($events->hasNext()) {
$eventMessageWriter->writeEventMessage($events->next());
}
}
