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<?php
/**
 * @author Robin Appelman <icewind@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\Files\Storage;

/**
 * Provide a common interface to all different storage options
 *
 * All paths passed to the storage are relative to the storage and should NOT have a leading slash.
 */
interface Storage extends \OCP\Files\Storage {

	/**
	 * get a cache instance for the storage
	 *
	 * @param string $path
	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the cache
	 * @return \OC\Files\Cache\Cache
	 */
	public function getCache($path = '', $storage = null);

	/**
	 * get a scanner instance for the storage
	 *
	 * @param string $path
	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the scanner
	 * @return \OC\Files\Cache\Scanner
	 */
	public function getScanner($path = '', $storage = null);


	/**
	 * get the user id of the owner of a file or folder
	 *
	 * @param string $path
	 * @return string
	 */
	public function getOwner($path);

	/**
	 * get a watcher instance for the cache
	 *
	 * @param string $path
	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
	 * @return \OC\Files\Cache\Watcher
	 */
	public function getWatcher($path = '', $storage = null);

	/**
	 * @return \OC\Files\Cache\Storage
	 */
	public function getStorageCache();

}