private AuthorizationRequest refreshTokenToken(AccessTokenRequest accessTokenRequest) {
AccessToken accessToken =
accessTokenRepository.findByRefreshToken(accessTokenRequest.getRefreshToken());
if (accessToken == null) {
throw new ValidationResponseException(ValidationResponse.INVALID_GRANT_REFRESH_TOKEN);
}
AuthorizationRequest request = new AuthorizationRequest();
request.setClient(accessToken.getClient());
request.setPrincipal(accessToken.getPrincipal());
request.setGrantedScopes(accessToken.getScopes());
accessTokenRepository.delete(accessToken);
return request;
}
