public int countProxies(Observer obs) {
ProxyBusObject proxy;
int count = 0;
for (proxy = obs.getFirst(); proxy != null; proxy = obs.getNext(proxy)) {
++count;
}
return count;
}
private ArrayList<ProxyBusObject> checkObjects(int nrOfObjects, Observer obs) {
ArrayList<ProxyBusObject> objects = new ArrayList<ProxyBusObject>();
objects.add(obs.getFirst());
ProxyBusObject obj = obs.getFirst();
checkGet(obj, obs);
assertNotNull(obj);
assertSame(objects.get(0), obj);
for (int i = 1; i < nrOfObjects; i++) {
obj = obs.getNext(objects.get(i - 1));
assertNotNull(obj);
assertSame(obj, obs.getNext(objects.get(i - 1)));
assertFalse(objects.contains(obj));
checkGet(obj, obs);
objects.add(obj);
}
assertNull(obs.getNext(obj));
assertNull(obs.getNext(obj));
return objects;
}
public void testGetFirstNext() {
Participant consumer = new Participant("one");
Participant provider = new Participant("two");
final Observer obs = newObserver(consumer, InterfaceA.class);
final ObserverListener listener = new ObserverListener(consumer);
obs.registerListener(listener);
assertNull(obs.getFirst());
assertNull(obs.getNext(null));
ArrayList<ProxyBusObject> objects = null;
String[] names = new String[] {A, AB, B, C};
for (int i = 0; i < names.length; ) {
provider.createA(names[i]);
waitForEvent(listener, provider, names[i]);
objects = checkObjects(++i, obs);
}
assertNotNull(objects);
ProxyBusObject obj = objects.get(1);
unregisterObject(provider, obj, listener);
assertSame(objects.get(2), obs.getNext(obj));
assertSame(objects.get(2), obs.getNext(objects.get(0)));
objects = checkObjects(3, obs);
assertFalse(objects.contains(obj));
obj = objects.get(2);
unregisterObject(provider, obj, listener);
assertNull(obs.getNext(obj));
assertNull(obs.getNext(objects.get(1)));
objects = checkObjects(2, obs);
assertFalse(objects.contains(obj));
obj = objects.get(0);
unregisterObject(provider, obj, listener);
assertSame(objects.get(1), obs.getNext(obj));
assertSame(objects.get(1), obs.getFirst());
objects = checkObjects(1, obs);
assertFalse(objects.contains(obj));
obj = objects.get(0);
unregisterObject(provider, obj, listener);
assertNull(obs.getNext(obj));
assertNull(obs.getFirst());
}
public void testClose() throws Exception {
Participant provider = new Participant("prov");
Participant consumer = new Participant("cons");
final Observer obs = newObserver(consumer, InterfaceA.class);
final ObserverListener listener = new ObserverListener(consumer);
obs.registerListener(listener);
provider.createA(A);
waitForEvent(listener, provider, A);
ProxyBusObject pbo = obs.getFirst();
assertNotNull(pbo);
obs.close();
obs.close();
obs.registerListener(listener);
assertNull(obs.getFirst());
assertNull(obs.get(pbo.getBusName(), pbo.getObjPath()));
assertNull(obs.getNext(pbo));
obs.unregisterListener(listener);
obs.unregisterAllListeners();
obs.close();
Thread.sleep(100);
listener.expectInvocations(0);
}
