Developer
<?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,
];
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: