1: <?php
 2: /**
 3:  * CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
 4:  * Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 5:  *
 6:  * Licensed under The MIT License
 7:  * Redistributions of files must retain the above copyright notice.
 8:  *
 9:  * @copyright     Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
10:  * @since         3.1.7
11:  * @license       https://opensource.org/licenses/mit-license.php MIT License
12:  */
13: namespace Cake\Http\Exception;
14: 
15: /**
16:  * Represents an HTTP 503 error.
17:  */
18: class ServiceUnavailableException extends HttpException
19: {
20: 
21:     /**
22:      * {@inheritDoc}
23:      */
24:     protected $_defaultCode = 503;
25: 
26:     /**
27:      * Constructor
28:      *
29:      * @param string|null $message If no message is given 'Service Unavailable' will be the message
30:      * @param int $code Status code, defaults to 503
31:      * @param \Exception|null $previous The previous exception.
32:      */
33:     public function __construct($message = null, $code = null, $previous = null)
34:     {
35:         if (empty($message)) {
36:             $message = 'Service Unavailable';
37:         }
38:         parent::__construct($message, $code, $previous);
39:     }
40: }
41: