name : KernelEvents.php <?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; use Symfony\Component\HttpKernel\Event\ControllerArgumentsEvent; use Symfony\Component\HttpKernel\Event\ControllerEvent; use Symfony\Component\HttpKernel\Event\ExceptionEvent; use Symfony\Component\HttpKernel\Event\FinishRequestEvent; use Symfony\Component\HttpKernel\Event\RequestEvent; use Symfony\Component\HttpKernel\Event\ResponseEvent; use Symfony\Component\HttpKernel\Event\TerminateEvent; use Symfony\Component\HttpKernel\Event\ViewEvent; /** * Contains all events thrown in the HttpKernel component. * * @author Bernhard Schussek <bschussek@gmail.com> */ 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. * * @Event("Symfony\Component\HttpKernel\Event\RequestEvent") */ public 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. * * @Event("Symfony\Component\HttpKernel\Event\ExceptionEvent") */ public const EXCEPTION = 'kernel.exception'; /** * 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. * * @Event("Symfony\Component\HttpKernel\Event\ControllerEvent") */ public const CONTROLLER = 'kernel.controller'; /** * The CONTROLLER_ARGUMENTS event occurs once controller arguments have been resolved. * * This event allows you to change the arguments that will be passed to * the controller. * * @Event("Symfony\Component\HttpKernel\Event\ControllerArgumentsEvent") */ public const CONTROLLER_ARGUMENTS = 'kernel.controller_arguments'; /** * 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. * * @Event("Symfony\Component\HttpKernel\Event\ViewEvent") */ public const VIEW = 'kernel.view'; /** * 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. * * @Event("Symfony\Component\HttpKernel\Event\ResponseEvent") */ public const RESPONSE = 'kernel.response'; /** * The FINISH_REQUEST 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. * * @Event("Symfony\Component\HttpKernel\Event\FinishRequestEvent") */ public const FINISH_REQUEST = 'kernel.finish_request'; /** * The TERMINATE event occurs once a response was sent. * * This event allows you to run expensive post-response jobs. * * @Event("Symfony\Component\HttpKernel\Event\TerminateEvent") */ public const TERMINATE = 'kernel.terminate'; /** * Event aliases. * * These aliases can be consumed by RegisterListenersPass. */ public const ALIASES = [ ControllerArgumentsEvent::class => self::CONTROLLER_ARGUMENTS, ControllerEvent::class => self::CONTROLLER, ResponseEvent::class => self::RESPONSE, FinishRequestEvent::class => self::FINISH_REQUEST, RequestEvent::class => self::REQUEST, ViewEvent::class => self::VIEW, ExceptionEvent::class => self::EXCEPTION, TerminateEvent::class => self::TERMINATE, ]; }