Question

I need to get list of active wicket session. Now I am saving all new session in override method newSession() and this session was being removed when session was being invalidated. But this method had lots of problems. How I understand this method was very rude hack and if you know another method, I will be grateful. (I use wicket v1.5.4 and tomcat v7.0.25 )

Update

Thank for your answers, but I need to get list of WICKET session (WebSession). I added HttpSessionListener with static maps of WebSessions and HttpSessions (with synchronization). This way is better than my and doesn’t have old problems but it’s looks like hack too :(. Do you have any idea about getting list of wicket sessions?

Answer 1

Would it be acceptable with a simple Listener instead, something like this?

public class SessionCounterListener implements HttpSessionListener {

  private static int totalActiveSessions;

  public static int getTotalActiveSession(){
    return totalActiveSessions;
  }

  @Override
  public void sessionCreated(HttpSessionEvent event) {
    totalActiveSessions++;
 }

  @Override
  public void sessionDestroyed(HttpSessionEvent event) {
    totalActiveSessions--;
  } 
}


<web-app ...>
    <listener>
    <listener-class>SessionCounterListener</listener-class>
</listener>
</web-app>

There is also an example from the “Wicket in action” book here