public void execute(long t) {
if (!hasMillisecondObservers) {
return;
}
millisecondObservable.newMillisecond(getSimulationTime());
scheduleEvent(this, t + MILLISECOND);
}
/**
* Add millisecond observer. This observer is notified once every simulated millisecond.
*
* @see #deleteMillisecondObserver(Observer)
* @param newObserver Observer
*/
public void addMillisecondObserver(Observer newObserver) {
millisecondObservable.addObserver(newObserver);
hasMillisecondObservers = true;
invokeSimulationThread(
new Runnable() {
public void run() {
if (!millisecondEvent.isScheduled()) {
scheduleEvent(
millisecondEvent,
currentSimulationTime - (currentSimulationTime % MILLISECOND) + MILLISECOND);
}
}
});
}
public String toString() {
return "MILLISECOND: " + millisecondObservable.countObservers();
}
/**
* Delete millisecond observer.
*
* @see #addMillisecondObserver(Observer)
* @param observer Observer to delete
*/
public void deleteMillisecondObserver(Observer observer) {
millisecondObservable.deleteObserver(observer);
hasMillisecondObservers = millisecondObservable.countObservers() > 0;
}