@Override
public IListenerRegistration addChangeListener(ICollectionChangeListener ccl) {
ListenerRegistration ret = new ListenerRegistration(ccl, registeredListeners);
synchronized (registeredListeners) {
registeredListeners.add(ccl);
}
logger.info(
"[" + ccl.getSession().getLoginAtDomain() + "] change listener registered on backend");
return ret;
}
@Override
public void run() {
Date lastSync = new Date();
ChangedCollections cols = getChangedCollections(lastSync);
lastSync = cols.getLastSync();
logger.info("DB lastSync: " + lastSync);
while (!stopped) {
try {
Thread.sleep(freqMillisec);
} catch (InterruptedException e) {
stopped = true;
continue;
}
synchronized (ccls) {
if (ccls.isEmpty()) {
continue;
}
}
cols = getChangedCollections(lastSync);
lastSync = cols.getLastSync();
LinkedList<PushNotification> toNotify = new LinkedList<PushNotification>();
synchronized (ccls) {
for (ICollectionChangeListener ccl : ccls) {
Set<SyncCollection> monitoredCollections = ccl.getMonitoredCollections();
Set<SyncCollection> changes =
getChangedCollections(ccl.getSession(), cols, monitoredCollections);
if (!changes.isEmpty()) {
toNotify.add(new PushNotification(changes, ccl));
}
}
}
for (PushNotification pn : toNotify) {
pn.emit();
}
}
}