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;

    13 

    14 /**

    15  * Contains all events thrown in the HttpKernel component

    16  *

    17  * @author Bernhard Schussek <bernhard.schussek@symfony.com>

    18  *

    19  * @api

    20  */

    21 final class KernelEvents

    22 {

    23     /**

    24      * The REQUEST event occurs at the very beginning of request

    25      * dispatching

    26      *

    27      * This event allows you to create a response for a request before any

    28      * other code in the framework is executed. The event listener method

    29      * receives a Symfony\Component\HttpKernel\Event\GetResponseEvent

    30      * instance.

    31      *

    32      * @var string

    33      *

    34      * @api

    35      */

    36     const REQUEST = 'kernel.request';

    37 

    38     /**

    39      * The EXCEPTION event occurs when an uncaught exception appears

    40      *

    41      * This event allows you to create a response for a thrown exception or

    42      * to modify the thrown exception. The event listener method receives

    43      * a Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent

    44      * instance.

    45      *

    46      * @var string

    47      *

    48      * @api

    49      */

    50     const EXCEPTION = 'kernel.exception';

    51 

    52     /**

    53      * The VIEW event occurs when the return value of a controller

    54      * is not a Response instance

    55      *

    56      * This event allows you to create a response for the return value of the

    57      * controller. The event listener method receives a

    58      * Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent

    59      * instance.

    60      *

    61      * @var string

    62      *

    63      * @api

    64      */

    65     const VIEW = 'kernel.view';

    66 

    67     /**

    68      * The CONTROLLER event occurs once a controller was found for

    69      * handling a request

    70      *

    71      * This event allows you to change the controller that will handle the

    72      * request. The event listener method receives a

    73      * Symfony\Component\HttpKernel\Event\FilterControllerEvent instance.

    74      *

    75      * @var string

    76      *

    77      * @api

    78      */

    79     const CONTROLLER = 'kernel.controller';

    80 

    81     /**

    82      * The RESPONSE event occurs once a response was created for

    83      * replying to a request

    84      *

    85      * This event allows you to modify or replace the response that will be

    86      * replied. The event listener method receives a

    87      * Symfony\Component\HttpKernel\Event\FilterResponseEvent instance.

    88      *

    89      * @var string

    90      *

    91      * @api

    92      */

    93     const RESPONSE = 'kernel.response';

    94 }