public function testEntityDeleted()
{
$mock = new MockRepository();
$id = new ItemId('Q123');
$item = new Item($id);
$mock->putEntity($item, 11);
$lookup = new CachingEntityRevisionLookup($mock, new HashBagOStuff());
$lookup->setVerifyRevision(false);
// fetch first revision, so it gets cached
$lookup->getEntityRevision($id);
// remove entity
$mock->removeEntity($id);
// now, notify the cache
$lookup->entityDeleted($id);
// make sure we get the new revision now
$revId = $lookup->getLatestRevisionId($id);
$this->assertFalse($revId, 'deletion should be detected after notification');
$rev = $lookup->getEntityRevision($id);
$this->assertNull($rev, 'deletion should be detected after notification');
}
/**
* Creates a strongly connected pair of EntityRevisionLookup services, the first being the raw
* uncached lookup, the second being the cached lookup.
*
* @return array( WikiPageEntityRevisionLookup, CachingEntityRevisionLookup )
*/
private function newEntityRevisionLookup()
{
// NOTE: Keep cache key in sync with DirectSqlStore::newEntityRevisionLookup in WikibaseClient
$cacheKeyPrefix = $this->cacheKeyPrefix . ':WikiPageEntityRevisionLookup';
// Maintain a list of watchers to be notified of changes to any entities,
// in order to update caches.
/** @var WikiPageEntityStore $dispatcher */
$dispatcher = $this->getEntityStoreWatcher();
$metaDataFetcher = $this->getEntityPrefetcher();
$dispatcher->registerWatcher($metaDataFetcher);
$rawLookup = new WikiPageEntityRevisionLookup($this->contentCodec, $metaDataFetcher, false);
// Lower caching layer using persistent cache (e.g. memcached).
$persistentCachingLookup = new CachingEntityRevisionLookup($rawLookup, wfGetCache($this->cacheType), $this->cacheDuration, $cacheKeyPrefix);
// We need to verify the revision ID against the database to avoid stale data.
$persistentCachingLookup->setVerifyRevision(true);
$dispatcher->registerWatcher($persistentCachingLookup);
// Top caching layer using an in-process hash.
$hashCachingLookup = new CachingEntityRevisionLookup($persistentCachingLookup, new HashBagOStuff());
// No need to verify the revision ID, we'll ignore updates that happen during the request.
$hashCachingLookup->setVerifyRevision(false);
$dispatcher->registerWatcher($hashCachingLookup);
return array($rawLookup, $hashCachingLookup);
}
/**
* @return EntityRevisionLookup
*/
private function newEntityRevisionLookup()
{
// NOTE: Keep cache key in sync with SqlStore::newEntityRevisionLookup in WikibaseRepo
$cacheKeyPrefix = $this->cacheKeyPrefix . ':WikiPageEntityRevisionLookup';
$metaDataFetcher = $this->getEntityPrefetcher();
$rawLookup = new WikiPageEntityRevisionLookup($this->contentCodec, $metaDataFetcher, $this->repoWiki);
// Lower caching layer using persistent cache (e.g. memcached).
$persistentCachingLookup = new CachingEntityRevisionLookup($rawLookup, wfGetCache($this->cacheType), $this->cacheDuration, $cacheKeyPrefix);
// We need to verify the revision ID against the database to avoid stale data.
$persistentCachingLookup->setVerifyRevision(true);
// Top caching layer using an in-process hash.
$hashCachingLookup = new CachingEntityRevisionLookup($persistentCachingLookup, new HashBagOStuff());
// No need to verify the revision ID, we'll ignore updates that happen during the request.
$hashCachingLookup->setVerifyRevision(false);
return $hashCachingLookup;
}
