@Override
public void execute(HttpServletRequest req, HttpServletResponse resp, ConfigService configService)
throws IOException {
String pvName = req.getParameter("pv");
if (pvName == null || pvName.equals("")) {
resp.sendError(HttpServletResponse.SC_BAD_REQUEST);
return;
}
Event event = configService.getETLLookup().getLatestEventFromDataStores(pvName);
if (event != null) {
resp.setContentType(MimeTypeConstants.APPLICATION_JSON);
HashMap<String, String> result = new HashMap<String, String>();
result.put("timestamp", TimeUtils.convertToISO8601String(event.getEventTimeStamp()));
try (PrintWriter out = resp.getWriter()) {
out.println(JSONValue.toJSONString(result));
}
} else {
resp.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
}
