public function __construct(Connection $connection, KeyValueFactory $keyvalue) {
$this->connection = $connection;
$this->state = $keyvalue
->get('state');
$this->langcode = language(LANGUAGE_TYPE_URL)->langcode;
$this->whitelist = $this->state
->get('system.path_alias_whitelist', NULL);
if (!isset($this->whitelist)) {
$this->whitelist = $this
->pathAliasWhitelistRebuild();
}
}