public JSONObject processQueryParameters(HttpSession session, JSONObject json) {
JSONObject tables = json.getJSONObject("parameters").getJSONObject("qparams");
log.info(tables.toString());
for (Object tObj : tables.entrySet()) {
JSONObject table = (JSONObject) tObj;
for (Object tKey : table.keySet()) {
System.out.println((String) tKey);
JSONArray columns = (JSONArray) table.get(tKey);
for (Object cObj : columns) {
JSONObject column = (JSONObject) cObj;