this.encoding = encoding;
    }

    /**
     * Sets the content type.
     *
     * @param contentType the content type
     */
    public void setContentType(final String contentType) {
        this.contentType = contentType;
    }

     */
    protected void sendBlockedResponse(final HttpServletResponse response) throws IOException {
        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.

        } else {
            enc = encoding;
        }
        buf.append(enc);
        final HttpServletResponse response = LaResponseUtil.getResponse();
        response.setContentType(buf.toString());
        writeHeaders(response);
        try (PrintWriter out = new PrintWriter(new OutputStreamWriter(response.getOutputStream(), enc))) {
            out.print(text);

     * @throws IOException if an I/O error occurs
     */
    protected void sendApiResponse(final HttpServletResponse response) throws IOException {
        response.setStatus(429);
        response.setContentType("application/json;charset=UTF-8");
        response.setHeader("Retry-After", String.valueOf(RETRY_AFTER_SECONDS));
        response.getWriter()