@Override public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String ctlExportKeyBase64 = URLDecoder.decode(request.getParameter(CTL_EXPORT_KEY_PARAMETER), "UTF-8"); try { CtlSchemaExportKey key = (CtlSchemaExportKey) Base64.decodeToObject(ctlExportKeyBase64, Base64.URL_SAFE, null); FileData ctlExportData = cacheService.getExportedCtlSchema(key); ServletUtils.prepareDisposition(request, response, ctlExportData.getFileName()); response.setContentType(ctlExportData.getContentType()); response.setContentLength(ctlExportData.getFileData().length); response.setBufferSize(BUFFER); response.getOutputStream().write(ctlExportData.getFileData()); response.flushBuffer(); } catch (Exception e) { LOG.error("Unexpected error in CtlExportServlet.doGet: ", e); response.sendError( HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Unable to get file: " + e.getMessage()); } }