Implement cache for reseller data exports

public/typo3conf/ext/ep_products/Classes/Controller/ResellerController.php

@@ -35,6 +35,8 @@ use EP\EpProducts\Service\ResellerDataService;
 use Symfony\Component\Serializer\Encoder\XmlEncoder;
 use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
 use Symfony\Component\Serializer\Serializer;
+use TYPO3\CMS\Core\Cache\CacheManager;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
 use TYPO3\CMS\Extbase\Mvc\Exception\InvalidArgumentValueException;
 
@@ -61,13 +63,23 @@ class ResellerController extends ActionController
      */
     protected $resellerDataService;
 
+    /**
+     * @var \TYPO3\CMS\Core\Cache\Frontend\FrontendInterface
+     */
+    protected $cache;
+
     /**
      * @param ResellerDataService $resellerDataService
+     * @throws \TYPO3\CMS\Core\Cache\Exception\NoSuchCacheException
      */
     public function __construct(ResellerDataService $resellerDataService)
     {
         parent::__construct();
+
         $this->resellerDataService = $resellerDataService;
+        /** @var CacheManager $cacheManager */
+        $cacheManager = GeneralUtility::makeInstance(CacheManager::class);
+        $this->cache = $cacheManager->getCache('ep_products_reseller');
     }
 
     /**
@@ -103,7 +115,11 @@ class ResellerController extends ActionController
             );
         }
 
-        $productData = $this->resellerDataService->preprocessSingle($product, $reseller);
+        $cacheKey = sprintf('reseller_export_cp_%d_%d', $product->getUid(), $reseller->getUid());
+        if (($productData = $this->cache->get($cacheKey)) === false) {
+            $productData = $this->resellerDataService->preprocessSingle($product, $reseller);
+            $this->cache->set($cacheKey, $productData, [], 3600);
+        }
 
         $this->view->assign('reseller', $reseller);
         $this->view->assign('productData', $productData);
@@ -111,16 +127,25 @@ class ResellerController extends ActionController
 
     /**
      * @param Reseller $reseller
-     * @return bool
+     * @return void
+     * @throws \Doctrine\DBAL\DBALException
      */
     public function xmlAction(Reseller $reseller)
     {
-        $data = $this->resellerDataService->preprocessAll($reseller);
+        $cacheKey = sprintf('reseller_export_xml_full_%d', $reseller->getUid());
 
-        $encoders = [new XmlEncoder('products')];
+        if (($xml = $this->cache->get($cacheKey)) === false) {
-        $normalizers = [new ObjectNormalizer()];
+            $data = $this->resellerDataService->preprocessAll($reseller);
-
+            $encoders = [new XmlEncoder('products')];
-        $serializer = new Serializer($normalizers, $encoders);
+            $normalizers = [new ObjectNormalizer()];
+            $serializer = new Serializer($normalizers, $encoders);
+            $xml = $serializer->serialize(
+                $data,
+                'xml',
+                [ 'xml_encoding' => 'utf-8', 'xml_format_output' => true ]
+            );
+            $this->cache->set($cacheKey, $xml, [], 3600);
+        }
 
         $filename = sprintf('export_%s_%s.xml', $reseller->getCode(), date('Y-m-d'));
 
@@ -131,11 +156,7 @@ class ResellerController extends ActionController
         header('Expires: 0');
         header('Pragma: public');
 
-        echo $serializer->serialize(
+        echo $xml;
-            $data,
-            'xml',
-            [ 'xml_encoding' => 'utf-8', 'xml_format_output' => true ]
-        );
 
         exit();
     }
@@ -152,11 +173,21 @@ class ResellerController extends ActionController
             throw new InvalidArgumentValueException();
         }
 
-        $data = $this->resellerDataService->preprocessAll(
+        $cacheKey = sprintf('reseller_export_csv_full_%d', $reseller->getUid());
-            $reseller,
+
-            static::$imageDimensions[$type],
+        if (($csv = $this->cache->get($cacheKey)) === false) {
-            $type
+            $data = $this->resellerDataService->preprocessAll(
-        );
+                $reseller,
+                static::$imageDimensions[$type],
+                $type
+            );
+            if ($type === 'google') {
+                $csv = GoogleBusinessFeedCsvFormatter::format($data);
+            } else {
+                $csv = FacebookCatalogCsvFormatter::format($data);
+            }
+            $this->cache->set($cacheKey, $csv, [], 3600);
+        }
 
         $filename = sprintf('export_%s_%s.csv', $reseller->getCode(), date('Y-m-d'));
 
@@ -169,12 +200,6 @@ class ResellerController extends ActionController
 
         $fileHandle = fopen('php://output', 'wb');
 
-        if ($type === 'google') {
-            $csv = GoogleBusinessFeedCsvFormatter::format($data);
-        } else {
-            $csv = FacebookCatalogCsvFormatter::format($data);
-        }
-
         foreach ($csv as $row) {
             fputcsv($fileHandle, $row);
         }

public/typo3conf/ext/ep_products/ext_localconf.php

@@ -1,4 +1,5 @@
 <?php
+
 if (!defined('TYPO3_MODE')) {
 	die('Access denied.');
 }
@@ -369,3 +370,11 @@ $GLOBALS['TYPO3_CONF_VARS']['LOG']['EP']['EpProducts']['Controller']['writerConf
 ];
 
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update']['teamSlug'] = \EP\EpProducts\Updates\TeamSlugUpdater::class;
+
+if (!is_array($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['ep_products_reseller'])) {
+    $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['ep_products_reseller'] = [];
+}
+
+if (!isset($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['ep_products_reseller']['backend'])) {
+    $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['ep_products_reseller']['backend'] = \TYPO3\CMS\Core\Cache\Backend\SimpleFileBackend::class;
+}