public function load(array $configs, ContainerBuilder $container)
 {
     $loader = new XmlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
     $processor = new Processor();
     $configuration = new Configuration();
     $config = $processor->process($configuration->getConfigTree(), $configs);
     $loader->load('services.xml');
     if ($config['persister'] == 'orm') {
         $persister = $container->register('davidbadura_fixtures.persister', 'DavidBadura\\Fixtures\\Persister\\DoctrinePersister');
         $serviceId = $config['persister_id'] ? $config['persister_id'] : 'doctrine.orm.entity_manager';
         $persister->addArgument(new Reference($serviceId));
     } elseif ($config['persister'] === 'odm') {
         $persister = $container->register('davidbadura_fixtures.persister', 'DavidBadura\\Fixtures\\Persister\\MongoDBPersister');
         $serviceId = $config['persister_id'] ? $config['persister_id'] : 'doctrine.odm.mongodb.document_manager';
         $persister->addArgument(new Reference($serviceId));
     } else {
         throw new \Exception();
     }
     if (isset($config['bundles'])) {
         $fixtureLoader = $container->getDefinition('davidbadura_fixtures.loader_factory');
         $fixtureLoader->addArgument(array_unique($config['bundles']));
     }
 }