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- 27.10.2014
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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 * @api
029 */
030 class FilterControllerEvent extends KernelEvent
031 {
032 /**
033 * The current controller
034 * @var callable
035 */
036 private $controller;
037
038 public function __construct(HttpKernelInterface $kernel, $controller, Request $request, $requestType)
039 {
040 parent::__construct($kernel, $request, $requestType);
041
042 $this->setController($controller);
043 }
044
045 /**
046 * Returns the current controller
047 *
048 * @return callable
049 *
050 * @api
051 */
052 public function getController()
053 {
054 return $this->controller;
055 }
056
057 /**
058 * Sets a new controller
059 *
060 * @param callable $controller
061 *
062 * @throws \LogicException
063 *
064 * @api
065 */
066 public function setController($controller)
067 {
068 // controller must be a callable
069 if (!is_callable($controller)) {
070 throw new \LogicException(sprintf('The controller must be a callable (%s given).', $this->varToString($controller)));
071 }
072
073 $this->controller = $controller;
074 }
075
076 private function varToString($var)
077 {
078 if (is_object($var)) {
079 return sprintf('Object(%s)', get_class($var));
080 }
081
082 if (is_array($var)) {
083 $a = array();
084 foreach ($var as $k => $v) {
085 $a[] = sprintf('%s => %s', $k, $this->varToString($v));
086 }
087
088 return sprintf("Array(%s)", implode(', ', $a));
089 }
090
091 if (is_resource($var)) {
092 return sprintf('Resource(%s)', get_resource_type($var));
093 }
094
095 if (null === $var) {
096 return 'null';
097 }
098
099 if (false === $var) {
100 return 'false';
101 }
102
103 if (true === $var) {
104 return 'true';
105 }
106
107 return (string) $var;
108 }
109 }
110