public function save(AggregateRoot $root)
{
$aggregateId = (string) $root->getIdentity();
$versionFile = $aggregateId . '-' . $root->getVersion();
if (file_exists($this->dataPath . '/' . $versionFile)) {
throw new IdenticalSnapshot();
}
$stream = fopen($this->dataPath . '/' . $versionFile, 'w');
fwrite($stream, serialize($root));
fclose($stream);
}
public function shouldCreateSnapshot(AggregateRoot $root)
{
if ($root->hasChanges()) {
$lastEvent = $root->getChanges()[count($root->getChanges()) - 1];
$lastVersion = $lastEvent->getVersion();
for ($i = $root->getVersion(); $i <= $lastVersion; $i++) {
if ($i % $this->interval == 0) {
return true;
}
}
}
return false;
}
/**
* Save given snapshot
*
* @param AggregateRoot $root
*/
public function save(AggregateRoot $root)
{
$snapshot = new Snapshot($root, $root->getVersion(), new \DateTime());
$this->snapshots[(string) $root->getIdentity()][] = $snapshot;
}
