/**
  * クリーンアップ
  */
 public function cleanUp($action, $context)
 {
     $action = us($action);
     switch ($action) {
         case "get_empty_data":
         case "get_integer_data":
         case "get_string_data":
         case "get_array_data":
         case "get_boolean_data":
         case "get_float_data":
         case "get_object_data":
         case "set_duration":
         case "delete":
         case "delete_wildcard":
         case "delete_regex":
         case "touch":
         case "touch_wildcard":
         case "touch_regex":
             $cache_files = glob($this->cache_root . '/*');
             if ($cache_files && is_array($cache_files)) {
                 foreach ($cache_files as $cache) {
                     $file = new Charcoal_File(s($cache));
                     $name = $file->getName();
                     $ext = $file->getExtension();
                     if ($file->exists() && $file->isFile() && in_array($ext, array("meta", "data"))) {
                         $file->delete();
                         echo "removed cache file: [{$cache}]" . eol();
                     }
                 }
             }
             break;
         default:
             break;
     }
 }