/**
* Registers the tagged event subscribers.
*
* @param ContainerBuilder $builder The service container builder.
* @param Definition $dispatcher The event dispatcher definition.
*
* @throws Exception If the subscriber could not be registered.
*/
private function registerSubscribers(ContainerBuilder $builder, Definition $dispatcher)
{
$ids = $builder->findTaggedServiceIds('event.subscriber');
foreach ($ids as $id => $tags) {
$subscriber = $builder->getDefinition($id);
if ($subscriber->isAbstract()) {
throw Exception::subscriberIsAbstract($id);
}
if (!$subscriber->isPublic()) {
throw Exception::subscriberIsNotPublic($id);
}
$reflect = new ReflectionClass($subscriber->getClass());
if (!$reflect->implementsInterface('Symfony\\Component\\EventDispatcher\\EventSubscriberInterface')) {
throw Exception::subscriberIsNotSubscriber($id);
}
$dispatcher->addMethodCall('addSubscriber', array(new Reference($id)));
}
}
