binary.LittleEndian.PutUint16(data[2:4], tierConfigVersion)

	// Marshal the tier config
	return config.MarshalMsg(data)
}

// getDriver returns a warmBackend interface object initialized with remote tier config matching tierName
func (config *TierConfigMgr) getDriver(ctx context.Context, tierName string) (d WarmBackend, err error) {
	config.Lock()
	defer config.Unlock()

	var ok bool

type jentry struct {
	ObjName   string
	VersionID string
	TierName  string
}

func deleteObjectFromRemoteTier(ctx context.Context, objName, rvID, tierName string) error {
	w, err := globalTierConfigMgr.getDriver(ctx, tierName)
	if err != nil {
		return err
	}
	return w.Remove(ctx, objName, remoteVersionID(rvID))

func getTransitionedObjectReader(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, h http.Header, oi ObjectInfo, opts ObjectOptions) (gr *GetObjectReader, err error) {
	tgtClient, err := globalTierConfigMgr.getDriver(ctx, oi.TransitionedObject.Tier)
	if err != nil {
		return nil, fmt.Errorf("transition storage class not configured: %w", err)
	}

	fn, off, length, err := NewGetObjectReader(rs, oi, opts, h)
	if err != nil {

}

// TransitionObject - transition object content to target tier.
func (er erasureObjects) TransitionObject(ctx context.Context, bucket, object string, opts ObjectOptions) error {
	tgtClient, err := globalTierConfigMgr.getDriver(ctx, opts.Transition.Tier)
	if err != nil {
		return err
	}

	if !opts.NoLock {
		// Acquire write lock before starting to transition the object.
		lk := er.NewNSLock(bucket, object)

        response.setStatus(HttpServletResponse.SC_FORBIDDEN);
        response.setContentType("application/json;charset=UTF-8");
        response.getWriter().write("{\"error\":\"ip_blocked\",\"message\":\"Access denied.\"}");
    }

    /**
     * Send a 429 Too Many Requests response.
     * @param response the HTTP response

 */
@Experimental
public interface XmlWriterRequest<T> {

    @Nullable
    Path getPath();

    @Nullable
    OutputStream getOutputStream();

    @Nullable
    Writer getWriter();

    @Nonnull
    T getContent();

    @Nullable
    Function<Object, String> getInputLocationFormatter();

    static <T> XmlWriterRequestBuilder<T> builder() {

     *
     * @return A PrintWriter for response output
     * @throws IOException If an I/O error occurs
     */
    @Override
    public PrintWriter getWriter() throws IOException {
        // dummy stream
        return new PrintWriter(new ByteArrayOutputStream());
    }

        public void process(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
                throws IOException, ServletException {
            response.setStatus(200);
            response.getWriter().write(responseContent);
        }
    }

    private static class ErrorWebApiManager implements WebApiManager {
        @Override
        public boolean matches(HttpServletRequest request) {

        response.setStatus(429);
        response.setContentType("application/json;charset=UTF-8");
        response.setHeader("Retry-After", String.valueOf(RETRY_AFTER_SECONDS));
        response.getWriter()
                .write("{\"response\":{\"status\":9,\"message\":\"Server is busy. Please retry after " + RETRY_AFTER_SECONDS
                        + " seconds.\",\"retry_after\":" + RETRY_AFTER_SECONDS + "}}");
    }

    /**
     * Deregisters all JDBC drivers associated with the current class loader.
     */
    public static synchronized void deregisterAllDrivers() {
        for (final Enumeration<Driver> e = DriverManager.getDrivers(); e.hasMoreElements();) {
            deregisterDriver(e.nextElement());
        }
    }