DiagramData data = DiagramStoreManager.get().getDiagram(
req.getParameter("key"), email);
// Post to render server
String json = URLEncoder.encode(data.toJSON(), "UTF-8");
HTTPRequest request = new HTTPRequest(new URL(SERVER), HTTPMethod.POST);
request.setPayload(("json=" + json).getBytes("UTF-8"));
HTTPResponse response = URLFetchServiceFactory.getURLFetchService()
.fetch(request);