HttpConnector httpConnector = httpConnectorParam==null ? new SimpleHttpConnector() :
(HttpConnector)newObjectInstance(httpConnectorParam);
// user manager
String managerParam = properties.getProperty("openid.user.manager");
OpenIdUserManager manager = managerParam == null ? new HttpSessionUserManager() :
(OpenIdUserManager)newObjectInstance(managerParam);
manager.init(properties);
// openid user cache
String userCacheParam = properties.getProperty("openid.user.cache");