nextcloud-server/lib/private/encryption/keys/factory.php

<?php
/**
 * @author Björn Schießle <schiessle@owncloud.com>
 *
 * @copyright Copyright (c) 2015, ownCloud, Inc.
 * @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\Encryption\Keys;

use OC\Encryption\Util;
use OC\Files\View;
use OC\User;

/**
 * Factory provides KeyStorage for different encryption modules
 */
class Factory {
	/** @var array */
	protected $instances = array();

	/**
	 * get a KeyStorage instance
	 *
	 * @param string $encryptionModuleId
	 * @param View $view
	 * @param Util $util
	 * @return Storage
	 */
	public function get($encryptionModuleId,View $view, Util $util) {
		if (!isset($this->instances[$encryptionModuleId])) {
			$this->instances[$encryptionModuleId] = new Storage($encryptionModuleId, $view, $util);
		}
		return $this->instances[$encryptionModuleId];
	}

}