108             foreach (array_diff($ids, $found) as $id) {
109                 $this->storeCache($id, []);
136         foreach ($ids as $id) {
137             $data = $this->retrieveCache($id);
139                 $toload[] = $id;
141                 $result[$id] = Extension::createFromRemoteData($data);
148             foreach ($toload as $id) {
149                 $data = $this->retrieveCache($id);
151                     $result[$id] = null;
153                     $result[$id] = Extension::createFromRemoteData($data);
164      * @param string $id
168     public function initExtension($id)  argument
170         $result = $this->initExtensions([$id]);
171         return $result[$id];
179      * @param string $id
183     public function getExtensionData($id)  argument
185         $data = $this->retrieveCache($id);
187             $this->fetchExtensions([$id]);
188             $data = $this->retrieveCache($id);
287      * @param string $id
290     protected function storeCache($id, $data)  argument
292         $cache = new Cache(self::CACHE_PREFIX . $id, self::CACHE_SUFFIX);
299      * @param string $id
302     protected function retrieveCache($id)  argument
304         $cache = new Cache(self::CACHE_PREFIX . $id, self::CACHE_SUFFIX);