/** Cleans up the sessions when the Application shuts down gracefully. */
public void close() {
synchronized (this) {
if (_isClosed) return;
_isClosed = true;
}
if (_sessions == null) return;
// _alarm.dequeue();
_sessionList.clear();
ArrayList<SessionArrayValue> list = new ArrayList<SessionArrayValue>();
boolean isError = false;
synchronized (_sessions) {
_sessionIter = _sessions.values(_sessionIter);
while (_sessionIter.hasNext()) {
SessionArrayValue session = _sessionIter.next();
if (session.isValid()) list.add(session);
}
}
for (int i = list.size() - 1; i >= 0; i--) {
SessionArrayValue session = list.get(i);
try {
if (session.isValid()) {
synchronized (session) {
if (!session.isEmpty()) session.storeOnShutdown();
}
}
_sessions.remove(session.getId());
} catch (Exception e) {
if (!isError) log.log(Level.WARNING, "Can't store session: " + e, e);
isError = true;
}
}
}
