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- 06.01.2017
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FilterControllerEvent.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\HttpKernel\Event;
013
014 use Symfony\Component\HttpKernel\HttpKernelInterface;
015 use Symfony\Component\HttpFoundation\Request;
016
017 /**
018 * Allows filtering of a controller callable.
019 *
020 * You can call getController() to retrieve the current controller. With
021 * setController() you can set a new controller that is used in the processing
022 * of the request.
023 *
024 * Controllers should be callables.
025 *
026 * @author Bernhard Schussek <bschussek@gmail.com>
027 */
028 class FilterControllerEvent extends KernelEvent
029 {
030 /**
031 * The current controller.
032 */
033 private $controller;
034
035 public function __construct(HttpKernelInterface $kernel, $controller, Request $request, $requestType)
036 {
037 parent::__construct($kernel, $request, $requestType);
038
039 $this->setController($controller);
040 }
041
042 /**
043 * Returns the current controller.
044 *
045 * @return callable
046 */
047 public function getController()
048 {
049 return $this->controller;
050 }
051
052 /**
053 * Sets a new controller.
054 *
055 * @param callable $controller
056 *
057 * @throws \LogicException
058 */
059 public function setController($controller)
060 {
061 // controller must be a callable
062 if (!is_callable($controller)) {
063 throw new \LogicException(sprintf('The controller must be a callable (%s given).', $this->varToString($controller)));
064 }
065
066 $this->controller = $controller;
067 }
068
069 private function varToString($var)
070 {
071 if (is_object($var)) {
072 return sprintf('Object(%s)', get_class($var));
073 }
074
075 if (is_array($var)) {
076 $a = array();
077 foreach ($var as $k => $v) {
078 $a[] = sprintf('%s => %s', $k, $this->varToString($v));
079 }
080
081 return sprintf('Array(%s)', implode(', ', $a));
082 }
083
084 if (is_resource($var)) {
085 return sprintf('Resource(%s)', get_resource_type($var));
086 }
087
088 if (null === $var) {
089 return 'null';
090 }
091
092 if (false === $var) {
093 return 'false';
094 }
095
096 if (true === $var) {
097 return 'true';
098 }
099
100 return (string) $var;
101 }
102 }
103