public String createSession(int userId) {
String sessionKey = generateSessionId();
synchronized (activeSessions) {
activeSessions.put(sessionKey, new Session(userId, sessionKey, timeProvider.now()));
}
System.out.println("Created session " + sessionKey + " for user " + userId);
return sessionKey;
}
private boolean hasExpired(Session session) {
return timeProvider.now() >= session.getCreateTime() + Settings.SESSION_EXPIRATION_TIME;
}