protected void sendError(HttpServletResponse response, int guacamoleStatusCode,
            int guacamoleHttpCode, String message)
            throws ServletException {

        try {

            // If response not committed, send error code and message
            if (!response.isCommitted()) {
                response.addHeader("Guacamole-Status-Code", Integer.toString(guacamoleStatusCode));
                response.addHeader("Guacamole-Error-Message", message);
                response.sendError(guacamoleHttpCode);
            }

        }
        catch (IOException ioe) {

            // If unable to send error at all due to I/O problems,
            // rethrow as servlet exception
            throw new ServletException(ioe);

        }

    }
protected void sendError ( HttpServletResponse response , int guacamoleStatusCode , int guacamoleHttpCode , String message ) throws ServletException { try { if ( ! response . isCommitted ( ) ) { response . addHeader ( "Guacamole-Status-Code" , Integer . toString ( guacamoleStatusCode ) ) ; response . addHeader ( "Guacamole-Error-Message" , message ) ; response . sendError ( guacamoleHttpCode ) ; } } catch ( IOException ioe ) { throw new ServletException ( ioe ) ; } }
Sends an error on the given HTTP response using the information within
the given GuacamoleStatus.

@param response
The HTTP response to use to send the error.

@param guacamoleStatusCode
The GuacamoleStatus code to send.

@param guacamoleHttpCode
The numeric HTTP code to send.

@param message
The human-readable error message to send.

@throws ServletException
If an error prevents sending of the error code.