PCC-63: Add caching for SmartComponentManager.

modules/pcx_smart_components/pcx_smart_components.routing.yml

@@ -5,3 +5,10 @@ pcx_smart_components.api_component_schema:
     _controller: '\Drupal\pcx_smart_components\Controller\ComponentSchemaController'
   requirements:
     _permission: 'access content'
+pcx_smart_components:api_component_schema_component:
+  path: '/api/pantheoncloud/component_schema/{component_id}'
+  defaults:
+    _title: 'Smart Component Schema'
+    _controller: '\Drupal\pcx_smart_components\Controller\ComponentSchemaController::getComponent'
+  requirements:
+    _permission: 'access content'

modules/pcx_smart_components/pcx_smart_components.services.yml

@@ -1,7 +1,7 @@
 services:
   pcx_smart_components.smart_component_manager:
     class: Drupal\pcx_smart_components\Service\SmartComponentManager
-    arguments: ['@plugin.manager.sdc']
+    arguments: ['@plugin.manager.sdc', '@cache.default']
   pcx_smart_components.renderer:
     class: Drupal\pcx_smart_components\Service\SmartComponentRenderer
     arguments: ['@logger.factory', '@pcx_smart_components.smart_component_manager']

modules/pcx_smart_components/src/Controller/ComponentSchemaController.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\pcx_smart_components\Controller;
 
+use Drupal\Core\Cache\CacheableJsonResponse;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
 use Drupal\pcx_smart_components\Service\SmartComponentManager;
@@ -42,7 +43,12 @@ public static function create(ContainerInterface $container) {
    */
   public function __invoke(): JsonResponse {
     $smartComponents = $this->smartComponentManager->getAllSmartComponents();
-    return new JsonResponse($smartComponents);
+    return new CacheableJsonResponse($smartComponents);
+  }
+
+  public function getComponent(string $component_id) {
+    $smartComponent = $this->smartComponentManager->getSmartComponent($component_id);
+    return new CacheableJsonResponse($smartComponent);
   }
 
 }

modules/pcx_smart_components/src/Service/SmartComponentManager.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\pcx_smart_components\Service;
 
+use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\sdc\Component\ComponentMetadata;
 use Drupal\sdc\ComponentPluginManager;
 use Drupal\sdc\Plugin\Component;
@@ -11,21 +12,36 @@
  */
 class SmartComponentManager {
 
+  /**
+   * Cache ID.
+   */
+  const CACHE_ID  = 'pcx_smart_components';
+
   /**
    * SDC Component Plugin Manager.
    *
    * @var ComponentPluginManager $componentPluginManager
    */
   protected ComponentPluginManager $componentPluginManager;
 
+  /**
+   * The cache backend.
+   *
+   * @var \Drupal\Core\Cache\CacheBackendInterface
+   */
+  protected $cacheBackend;
+
   /**
    * Constructs SmartComponentManager.
    *
    * @param ComponentPluginManager $componentPluginManager
    *   SDC Component Plugin Manager.
+   * @param CacheBackendInterface $cacheBackend
+   *   Cache Backend Interface.
    */
-  public function __construct(ComponentPluginManager $componentPluginManager) {
+  public function __construct(ComponentPluginManager $componentPluginManager, CacheBackendInterface $cacheBackend) {
     $this->componentPluginManager = $componentPluginManager;
+    $this->cacheBackend = $cacheBackend;
   }
 
   /**
@@ -35,6 +51,11 @@ public function __construct(ComponentPluginManager $componentPluginManager) {
    *   Array of smart components.
    */
   public function getAllSmartComponents(): array {
+    $cachedData = $this->cacheBackend->get(self::CACHE_ID);
+    if (!empty($cachedData)) {
+      return $cachedData->data;
+    }
+
     $pccComponents = $this->getAllPccComponents();
 
     $smartComponents = [];
@@ -43,9 +64,31 @@ public function getAllSmartComponents(): array {
       $smartComponents[strtoupper($componentId)] = $this->toSmartComponent($pccComponent);
     }
 
+    $this->cacheBackend->set(self::CACHE_ID, $smartComponents);
     return $smartComponents;
   }
 
+  /**
+   * Get Smart Component converting available Drupal SDC components.
+   *
+   * @param string $componentId
+   *   Component ID / name in uppercase.
+   *
+   * @return array
+   *   Smart Component data in array.
+   */
+  public function getSmartComponent(string $componentId): array {
+    $cachedData = $this->cacheBackend->get(self::CACHE_ID);
+    if (!empty($cachedData)
+      && !empty($cachedData->data)
+      && !empty($cachedData->data[$componentId])) {
+      return $cachedData->data[$componentId];
+    }
+
+    $smartComponents = $this->getAllSmartComponents();
+    return $smartComponents[$componentId] ?? [];
+  }
+
   /**
    * Finds SDC Component based on machineName.
    *