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- <?php
- declare(strict_types=1);
- namespace OC\Group;
- use OCP\Cache\CappedMemoryCache;
- use OCP\EventDispatcher\Event;
- use OCP\EventDispatcher\IEventListener;
- use OCP\Group\Events\GroupChangedEvent;
- use OCP\Group\Events\GroupDeletedEvent;
- use OCP\ICache;
- use OCP\ICacheFactory;
- use OCP\IGroupManager;
- class DisplayNameCache implements IEventListener {
- private CappedMemoryCache $cache;
- private ICache $memCache;
- private IGroupManager $groupManager;
- public function __construct(ICacheFactory $cacheFactory, IGroupManager $groupManager) {
- $this->cache = new CappedMemoryCache();
- $this->memCache = $cacheFactory->createDistributed('groupDisplayNameMappingCache');
- $this->groupManager = $groupManager;
- }
- public function getDisplayName(string $groupId): ?string {
- if (isset($this->cache[$groupId])) {
- return $this->cache[$groupId];
- }
- $displayName = $this->memCache->get($groupId);
- if ($displayName) {
- $this->cache[$groupId] = $displayName;
- return $displayName;
- }
- $group = $this->groupManager->get($groupId);
- if ($group) {
- $displayName = $group->getDisplayName();
- } else {
- $displayName = null;
- }
- $this->cache[$groupId] = $displayName;
- $this->memCache->set($groupId, $displayName, 60 * 10);
- return $displayName;
- }
- public function clear(): void {
- $this->cache = new CappedMemoryCache();
- $this->memCache->clear();
- }
- public function handle(Event $event): void {
- if ($event instanceof GroupChangedEvent && $event->getFeature() === 'displayName') {
- $groupId = $event->getGroup()->getGID();
- $newDisplayName = $event->getValue();
- $this->cache[$groupId] = $newDisplayName;
- $this->memCache->set($groupId, $newDisplayName, 60 * 10);
- }
- if ($event instanceof GroupDeletedEvent) {
- $groupId = $event->getGroup()->getGID();
- unset($this->cache[$groupId]);
- $this->memCache->remove($groupId);
- }
- }
- }
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