public function manipulateCacheActions(&$cacheActions, &$optionValues)
    {
        if (!$this->backendUser->isAdmin()) {
            return;
        }

        $href = $this->uriBuilder->buildUriFromRoute('ajax_solr_updateConnections');
        $optionValues[] = 'clearSolrConnectionCache';
        $cacheActions[] = [
            'id' => 'clearSolrConnectionCache',
            'title' => 'LLL:EXT:solr/Resources/Private/Language/locallang.xlf:cache_initialize_solr_connections',
            'href' => $href,
            'iconIdentifier' => 'extensions-solr-module-initsolrconnections'
        ];
    }