// This method is part of dead-end idea how ECs will be grouped together
// we'll remove it
public synchronized void registerEventCentral(EventCentral ec, String lisid, EventListener lis) throws InvalidFormatException {
// get app part
int start = lisid.indexOf("/");
if(start==-1) throw new InvalidFormatException(lisid);
String host = lisid.substring(0, start);
int end = lisid.indexOf("/", start+1);
if(end==-1) throw new InvalidFormatException(lisid);
String app = lisid.substring(start+1, end);
centrals.put(app, lis);