/**
* @brief 设置当前识别的instance的值
*
* @param $instance
*
*/
public static function setInstance($instance)
{
if (empty($instance)) {
return false;
}
if (empty(self::$_support_instance)) {
self::_initInstance();
}
if (!in_array($instance, self::$_support_instance)) {
Bd_Log::warning("set instance err, instance \"{$instance}\" is not valid;");
return false;
}
self::$_instance = $instance;
return true;
}