@Override
protected String getAuthorizationUrl(UserRedirectRequiredException exception) {
final OAuth2ProtectedResourceDetails resource = getResource();
UriComponentsBuilder uriBuilder =
UriComponentsBuilder.fromUriString(exception.getRedirectUri())
.queryParam("state", exception.getStateKey())
.queryParam("client_id", resource.getClientId())
.queryParam("response_type", "code")
.queryParam("scope", StringUtils.collectionToDelimitedString(resource.getScope(), " "))
.queryParam("redirect_uri", getCallbackUrl());
return uriBuilder.build().encode().toUriString();
}
