public function __construct($solr_index_indice = null, $language_code = null)
 {
     $this->init_galaxy();
     $path = plugin_dir_path(__FILE__) . '../../vendor/autoload.php';
     require_once $path;
     // Load options
     $this->solr_indexing_options = get_option('wdm_solr_form_data');
     // Build Solarium config from the default indexing Solr index
     WpSolrExtensions::require_once_wpsolr_extension(WpSolrExtensions::OPTION_INDEXES, true);
     $options_indexes = new OptionIndexes();
     $config = $options_indexes->build_solarium_config($solr_index_indice, $language_code, self::DEFAULT_SOLR_TIMEOUT_IN_SECOND);
     $this->index_indice = $solr_index_indice;
     $this->index = $options_indexes->get_index($solr_index_indice);
     $this->solarium_client = new Solarium\Client($config);
 }