using getConfiguration and removing unnecessary end statements

DependencyInjection/Configuration.php

@@ -278,11 +278,6 @@ class Configuration
 
         $this->addFieldConfig($childrenNode, $nestings);
 
-        $childrenNode
-                ->end()
-            ->end()
-        ;
-
         return $node;
     }
 

DependencyInjection/FOQElasticaExtension.php

@@ -20,7 +20,7 @@ class FOQElasticaExtension extends Extension
 
     public function load(array $configs, ContainerBuilder $container)
     {
-        $configuration = new Configuration($configs);
+        $configuration = $this->getConfiguration($configs, $container);
         $processor     = new Processor();
         $config        = $processor->process($configuration->getConfigTree(), $configs);
 
@@ -56,6 +56,11 @@ class FOQElasticaExtension extends Extension
         $this->createDefaultManagerAlias($config['default_manager'], $container);
     }
 
+    public function getConfiguration(array $config, ContainerBuilder $container)
+    {
+        return new Configuration($config);
+    }
+
     /**
      * Loads the configured clients.
      *