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KernelEvents.php
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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\HttpKernel; /** * Contains all events thrown in the HttpKernel component * * @author Bernhard Schussek <bschussek@gmail.com> * * @api */ final class KernelEvents { /** * The REQUEST event occurs at the very beginning of request * dispatching * * This event allows you to create a response for a request before any * other code in the framework is executed. The event listener method * receives a Symfony\Component\HttpKernel\Event\GetResponseEvent * instance. * * @var string * * @api */ const REQUEST = 'kernel.request'; /** * The EXCEPTION event occurs when an uncaught exception appears * * This event allows you to create a response for a thrown exception or * to modify the thrown exception. The event listener method receives * a Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent * instance. * * @var string * * @api */ const EXCEPTION = 'kernel.exception'; /** * The VIEW event occurs when the return value of a controller * is not a Response instance * * This event allows you to create a response for the return value of the * controller. The event listener method receives a * Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent * instance. * * @var string * * @api */ const VIEW = 'kernel.view'; /** * The CONTROLLER event occurs once a controller was found for * handling a request * * This event allows you to change the controller that will handle the * request. The event listener method receives a * Symfony\Component\HttpKernel\Event\FilterControllerEvent instance. * * @var string * * @api */ const CONTROLLER = 'kernel.controller'; /** * The RESPONSE event occurs once a response was created for * replying to a request * * This event allows you to modify or replace the response that will be * replied. The event listener method receives a * Symfony\Component\HttpKernel\Event\FilterResponseEvent instance. * * @var string * * @api */ const RESPONSE = 'kernel.response'; /** * The TERMINATE event occurs once a response was sent * * This event allows you to run expensive post-response jobs. * The event listener method receives a * Symfony\Component\HttpKernel\Event\PostResponseEvent instance. * * @var string */ const TERMINATE = 'kernel.terminate'; /** * The REQUEST_FINISHED event occurs when a response was generated for a request. * * This event allows you to reset the global and environmental state of * the application, when it was changed during the request. * * @var string */ const FINISH_REQUEST = 'kernel.finish_request'; }