diff core/modules/rest/src/EventSubscriber/RestConfigSubscriber.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/rest/src/EventSubscriber/RestConfigSubscriber.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,53 @@
+<?php
+
+namespace Drupal\rest\EventSubscriber;
+
+use Drupal\Core\Config\ConfigCrudEvent;
+use Drupal\Core\Config\ConfigEvents;
+use Drupal\Core\Routing\RouteBuilderInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * A subscriber triggering a route rebuild when certain configuration changes.
+ */
+class RestConfigSubscriber implements EventSubscriberInterface {
+
+  /**
+   * The router builder.
+   *
+   * @var \Drupal\Core\Routing\RouteBuilderInterface
+   */
+  protected $routerBuilder;
+
+  /**
+   * Constructs the RestConfigSubscriber.
+   *
+   * @param \Drupal\Core\Routing\RouteBuilderInterface $router_builder
+   *   The router builder service.
+   */
+  public function __construct(RouteBuilderInterface $router_builder) {
+    $this->routerBuilder = $router_builder;
+  }
+
+  /**
+   * Informs the router builder a rebuild is needed when necessary.
+   *
+   * @param \Drupal\Core\Config\ConfigCrudEvent $event
+   *   The Event to process.
+   */
+  public function onSave(ConfigCrudEvent $event) {
+    $saved_config = $event->getConfig();
+    if ($saved_config->getName() === 'rest.settings' && $event->isChanged('bc_entity_resource_permissions')) {
+      $this->routerBuilder->setRebuildNeeded();
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    $events[ConfigEvents::SAVE][] = ['onSave'];
+    return $events;
+  }
+
+}