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- Veröffentlicht
- 06.01.2017
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FragmentRendererPass.php
01 <?php
02
03 /*
04 * This file is part of the Symfony package.
05 *
06 * (c) Fabien Potencier <fabien@symfony.com>
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * file that was distributed with this source code.
10 */
11
12 namespace Symfony\Component\HttpKernel\DependencyInjection;
13
14 use Symfony\Component\DependencyInjection\ContainerBuilder;
15 use Symfony\Component\DependencyInjection\Reference;
16 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
17
18 /**
19 * Adds services tagged kernel.fragment_renderer as HTTP content rendering strategies.
20 *
21 * @author Fabien Potencier <fabien@symfony.com>
22 */
23 class FragmentRendererPass implements CompilerPassInterface
24 {
25 private $handlerService;
26 private $rendererTag;
27
28 /**
29 * @param string $handlerService Service name of the fragment handler in the container
30 * @param string $rendererTag Tag name used for fragments
31 */
32 public function __construct($handlerService = 'fragment.handler', $rendererTag = 'kernel.fragment_renderer')
33 {
34 $this->handlerService = $handlerService;
35 $this->rendererTag = $rendererTag;
36 }
37
38 public function process(ContainerBuilder $container)
39 {
40 if (!$container->hasDefinition($this->handlerService)) {
41 return;
42 }
43
44 $definition = $container->getDefinition($this->handlerService);
45 foreach ($container->findTaggedServiceIds($this->rendererTag) as $id => $tags) {
46 $def = $container->getDefinition($id);
47 if (!$def->isPublic()) {
48 throw new \InvalidArgumentException(sprintf('The service "%s" must be public as fragment renderer are lazy-loaded.', $id));
49 }
50
51 if ($def->isAbstract()) {
52 throw new \InvalidArgumentException(sprintf('The service "%s" must not be abstract as fragment renderer are lazy-loaded.', $id));
53 }
54
55 $class = $container->getParameterBag()->resolveValue($def->getClass());
56 $interface = 'Symfony\Component\HttpKernel\Fragment\FragmentRendererInterface';
57
58 if (!is_subclass_of($class, $interface)) {
59 if (!class_exists($class, false)) {
60 throw new \InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
61 }
62
63 throw new \InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, $interface));
64 }
65
66 foreach ($tags as $tag) {
67 if (!isset($tag['alias'])) {
68 @trigger_error(sprintf('Service "%s" will have to define the "alias" attribute on the "%s" tag as of Symfony 3.0.', $id, $this->rendererTag), E_USER_DEPRECATED);
69
70 // register the handler as a non-lazy-loaded one
71 $definition->addMethodCall('addRenderer', array(new Reference($id)));
72 } else {
73 $definition->addMethodCall('addRendererService', array($tag['alias'], $id));
74 }
75 }
76 }
77 }
78 }
79