mirror of
https://github.com/nextcloud/server.git
synced 2025-02-14 21:09:20 +00:00
94 lines
2.8 KiB
PHP
94 lines
2.8 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
/**
|
|
* @copyright 2022 Anna Larch <anna.larch@gmx.net>
|
|
* @author Anna Larch <anna.larch@gmx.net>
|
|
*
|
|
* @license AGPL-3.0-or-later
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
|
|
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 that cache the relation Group ID -> Display name
|
|
*
|
|
* This saves fetching the group from the backend for "just" the display name
|
|
* @template-implements IEventListener<GroupChangedEvent|GroupDeletedEvent>
|
|
*/
|
|
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); // 10 minutes
|
|
|
|
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, $newDisplayName, 60 * 10); // 10 minutes
|
|
}
|
|
if ($event instanceof GroupDeletedEvent) {
|
|
$groupId = $event->getGroup()->getGID();
|
|
unset($this->cache[$groupId]);
|
|
$this->memCache->remove($groupId);
|
|
}
|
|
}
|
|
}
|