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<?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\DependencyInjection;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
/**
* Adds services tagged kernel.fragment_renderer as HTTP content rendering strategies.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class FragmentRendererPass implements CompilerPassInterface
{
private $handlerService;
private $rendererTag;
/**
* @param string $handlerService Service name of the fragment handler in the container
* @param string $rendererTag Tag name used for fragments
*/
public function __construct($handlerService = 'fragment.handler', $rendererTag = 'kernel.fragment_renderer')
{
$this->handlerService = $handlerService;
$this->rendererTag = $rendererTag;
}
public function process(ContainerBuilder $container)
{
if (!$container->hasDefinition($this->handlerService)) {
return;
}
$definition = $container->getDefinition($this->handlerService);
foreach ($container->findTaggedServiceIds($this->rendererTag) as $id => $tags) {
$def = $container->getDefinition($id);
if (!$def->isPublic()) {
throw new \InvalidArgumentException(sprintf('The service "%s" must be public as fragment renderer are lazy-loaded.', $id));
}
if ($def->isAbstract()) {
throw new \InvalidArgumentException(sprintf('The service "%s" must not be abstract as fragment renderer are lazy-loaded.', $id));
}
$class = $container->getParameterBag()->resolveValue($def->getClass());
$interface = 'Symfony\Component\HttpKernel\Fragment\FragmentRendererInterface';
if (!is_subclass_of($class, $interface)) {
if (!class_exists($class, false)) {
throw new \InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
}
throw new \InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, $interface));
}
foreach ($tags as $tag) {
$definition->addMethodCall('addRendererService', array($tag['alias'], $id));
}
}
}
}