aleph1.co.uk Git - yaffs-website/blob - http-kernel/DependencyInjection/ResettableServicePass.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\HttpKernel\DependencyInjection;
  13
  14 use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
  15 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
  16 use Symfony\Component\DependencyInjection\ContainerBuilder;
  17 use Symfony\Component\DependencyInjection\ContainerInterface;
  18 use Symfony\Component\DependencyInjection\Exception\RuntimeException;
  19 use Symfony\Component\DependencyInjection\Reference;
  20
  21 /**
  22  * @author Alexander M. Turek <me@derrabus.de>
  23  */
  24 class ResettableServicePass implements CompilerPassInterface
  25 {
  26     private $tagName;
  27
  28     public function __construct($tagName = 'kernel.reset')
  29     {
  30         $this->tagName = $tagName;
  31     }
  32
  33     /**
  34      * {@inheritdoc}
  35      */
  36     public function process(ContainerBuilder $container)
  37     {
  38         if (!$container->has('services_resetter')) {
  39             return;
  40         }
  41
  42         $services = $methods = array();
  43
  44         foreach ($container->findTaggedServiceIds($this->tagName, true) as $id => $tags) {
  45             $services[$id] = new Reference($id, ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE);
  46             $attributes = $tags[0];
  47
  48             if (!isset($attributes['method'])) {
  49                 throw new RuntimeException(sprintf('Tag %s requires the "method" attribute to be set.', $this->tagName));
  50             }
  51
  52             $methods[$id] = $attributes['method'];
  53         }
  54
  55         if (empty($services)) {
  56             $container->removeAlias('services_resetter');
  57             $container->removeDefinition('services_resetter');
  58
  59             return;
  60         }
  61
  62         $container->findDefinition('services_resetter')
  63             ->setArgument(0, new IteratorArgument($services))
  64             ->setArgument(1, $methods);
  65     }
  66 }