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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\HttpKernel\Exception;
  13  
  14  /**
  15   * TooManyRequestsHttpException.
  16   *
  17   * @author Ben Ramsey <ben@benramsey.com>
  18   *
  19   * @see http://tools.ietf.org/html/rfc6585
  20   */
  21  class TooManyRequestsHttpException extends HttpException
  22  {
  23      /**
  24       * Constructor.
  25       *
  26       * @param int|string $retryAfter The number of seconds or HTTP-date after which the request may be retried
  27       * @param string     $message    The internal exception message
  28       * @param \Exception $previous   The previous exception
  29       * @param int        $code       The internal exception code
  30       */
  31      public function __construct($retryAfter = null, $message = null, \Exception $previous = null, $code = 0)
  32      {
  33          $headers = array();
  34          if ($retryAfter) {
  35              $headers = array('Retry-After' => $retryAfter);
  36          }
  37  
  38          parent::__construct(429, $message, $previous, $headers, $code);
  39      }
  40  }