nextcloud-server/lib/private/Files/Node/LazyRoot.php

<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Robin Appelman <robin@icewind.nl>
 * @author Roeland Jago Douma <roeland@famdouma.nl>
 *
 * @license AGPL-3.0
 *
 * 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\Files\Node;

use OCP\Files\Cache\ICacheEntry;
use OCP\Files\IRootFolder;
use OCP\Files\Mount\IMountPoint;
use OCP\Files\Node;
use OCP\Files\Node as INode;

/**
 * Class LazyRoot
 *
 * This is a lazy wrapper around the root. So only
 * once it is needed this will get initialized.
 *
 * @package OC\Files\Node
 */
class LazyRoot extends LazyFolder implements IRootFolder {
	public function __construct(\Closure $folderClosure, array $data = []) {
		parent::__construct($this, $folderClosure, $data);
	}

	protected function getRootFolder(): IRootFolder {
		$folder = $this->getRealFolder();
		if (!$folder instanceof IRootFolder) {
			throw new \Exception('Lazy root folder closure didn\'t return a root folder');
		}
		return $folder;
	}

	public function getUserFolder($userId) {
		return $this->__call(__FUNCTION__, func_get_args());
	}

	public function getByIdInPath(int $id, string $path) {
		return $this->__call(__FUNCTION__, func_get_args());
	}

	public function getFirstNodeByIdInPath(int $id, string $path): ?Node {
		return $this->__call(__FUNCTION__, func_get_args());
	}

	public function getNodeFromCacheEntryAndMount(ICacheEntry $cacheEntry, IMountPoint $mountPoint): INode {
		return $this->getRootFolder()->getNodeFromCacheEntryAndMount($cacheEntry, $mountPoint);
	}
}