nextcloud/lib/private/UserStatus/Manager.php

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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2020, Georg Ehrke
*
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\UserStatus;
use OCP\ILogger;
use OCP\IServerContainer;
use OCP\UserStatus\IManager;
use OCP\UserStatus\IProvider;
use Psr\Container\ContainerExceptionInterface;
class Manager implements IManager {
/** @var IServerContainer */
private $container;
/** @var ILogger */
private $logger;
/** @var null */
private $providerClass;
/** @var IProvider */
private $provider;
/**
* Manager constructor.
*
* @param IServerContainer $container
* @param ILogger $logger
*/
public function __construct(IServerContainer $container,
ILogger $logger) {
$this->container = $container;
$this->logger = $logger;
}
/**
* @inheritDoc
*/
public function getUserStatuses(array $userIds): array {
$this->setupProvider();
if (!$this->provider) {
return [];
}
return $this->provider->getUserStatuses($userIds);
}
/**
* @param string $class
* @since 20.0.0
* @internal
*/
public function registerProvider(string $class): void {
$this->providerClass = $class;
$this->provider = null;
}
/**
* Lazily set up provider
*/
private function setupProvider(): void {
if ($this->provider !== null) {
return;
}
if ($this->providerClass === null) {
return;
}
try {
$provider = $this->container->get($this->providerClass);
} catch (ContainerExceptionInterface $e) {
$this->logger->logException($e, [
'message' => 'Could not load user-status provider dynamically: ' . $e->getMessage(),
'level' => ILogger::ERROR,
]);
return;
}
$this->provider = $provider;
}
}