final String pathPrefix = ADMIN_SERVER + token;
                if (!servletPath.startsWith(pathPrefix)) {
                    throw new WebApiException(HttpServletResponse.SC_FORBIDDEN, "Invalid access token.");
                }
                final String path;
                final String value = servletPath.substring(pathPrefix.length());
                if (!value.startsWith("/")) {

    private static final String STREAM_API_PATH = "/api/v1/chat/stream";

    private static final ObjectMapper objectMapper = new ObjectMapper();

    /** The path prefix for the chat API endpoints. */
    protected String pathPrefix = CHAT_API_PATH;

    /**
     * Default constructor.
     */
    public ChatApiManager() {
        // Default constructor
    }

    /**
     * Registers this API manager with the WebApiManagerFactory.

        if (!fessConfig.isWebApiJson()) {
            return false;
        }

        final String servletPath = request.getServletPath();
        return servletPath.startsWith(pathPrefix);
    }

    @Override
    public void process(final HttpServletRequest request, final HttpServletResponse response, final FilterChain chain)
            throws IOException, ServletException {