NetgenEzSyliusExtension.php

<?php

namespace Netgen\Bundle\EzSyliusBundle\DependencyInjection;

use Symfony\Component\Config\FileLocator;
use Symfony\Component\Config\Resource\FileResource;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
use Symfony\Component\Yaml\Yaml;

class NetgenEzSyliusExtension extends Extension implements PrependExtensionInterface
{
    /**
     * {@inheritdoc}
     */
    public function load(array $configs, ContainerBuilder $container)
    {
        $configuration = new Configuration();
        $config = $this->processConfiguration($configuration, $configs);

        $loader = new YamlFileLoader(
            $container,
            new FileLocator(__DIR__ . '/../Resources/config')
        );

        $loader->load('doctrine.yml');
        $loader->load('fieldtypes.yml');
        $loader->load('listeners.yml');
        $loader->load('security.yml');
    }

    /**
     * {@inheritdoc}
     */
    public function prepend(ContainerBuilder $container)
    {
        $configFile = __DIR__ . '/../Resources/config/ezplatform.yml';
        $config = Yaml::parse(file_get_contents($configFile));
        $container->prependExtensionConfig('ezpublish', $config);
        $container->addResource(new FileResource($configFile));
    }
}