server/lib/private/hintexception.php

<?php
/**
 * @author Bart Visscher <bartv@thisnet.nl>
 * @author Lukas Reschke <lukas@owncloud.com>
 * @author Michael Gapczynski <GapczynskiM@gmail.com>
 * @author Morris Jobke <hey@morrisjobke.de>
 *
 * @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;

class HintException extends \Exception {

	private $hint;

	public function __construct($message, $hint = '', $code = 0, \Exception $previous = null) {
		$this->hint = $hint;
		parent::__construct($message, $code, $previous);
	}

	public function __toString() {
		return __CLASS__ . ": [{$this->code}]: {$this->message} ({$this->hint})\n";
	}

	public function getHint() {
		if (empty($this->hint)) {
			return $this->message;
		}
		return $this->hint;
	}
}