}
@Override
protected OAuthPrincipal<GoogleAccessTokenContext> getOAuthPrincipal(HttpServletRequest request, HttpServletResponse response,
InteractionState<GoogleAccessTokenContext> interactionState) {
GoogleAccessTokenContext accessTokenContext = interactionState.getAccessTokenContext();
Userinfo userInfo = ((GoogleProcessor)getOauthProviderProcessor()).obtainUserInfo(accessTokenContext);
if (log.isTraceEnabled()) {
log.trace("Obtained tokenResponse from Google authentication: " + accessTokenContext);
log.trace("User info from Google: " + userInfo);