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<?php
/**
 * @author Bart Visscher <bartv@thisnet.nl>
 * @author Joas Schilling <nickvergessen@owncloud.com>
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Robin Appelman <icewind@owncloud.com>
 * @author Robin McCorkell <robin@mccorkell.me.uk>
 *
 * @copyright Copyright (c) 2016, 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\L10N;

use OCP\L10N\IFactory;

/**
 * A factory that generates language instances
 */
class Factory implements IFactory {
	/**
	 * cached instances
	 */
	protected $instances = array();

	/**
	 * Get a language instance
	 *
	 * @param string $app
	 * @param string|null $lang
	 * @return \OCP\IL10N
	 */
	public function get($app, $lang = null) {
		$key = $lang;
		if ($key === null) {
			$key = 'null';
		}

		if (!isset($this->instances[$key][$app])) {
			$this->instances[$key][$app] = new \OC_L10N($app, $lang);
		}

		return $this->instances[$key][$app];
	}

}