count active users

[asianCoolz <se...@yahoo.com>]

in my hivemodule.xml

 <state-object name="user" scope="session">
            <create-instance class="com.company.app.model.User"/>
        </state-object>

  </contribution>

may i know how to count total number of active users ? which java methods can i
call ?



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Re: count active users

[LLTYK <LL...@mailinator.com>]

Here's a different way. Implement HttpSessionListener (and put it in web.xml)
and do this:

  public void sessionCreated(HttpSessionEvent event)
  {
    Set<HttpSession> allHttpSessions =
event.getSession().getServletContext().getAttribute("allSessions");
    if (allHttpSessions == null) {
      allHttpSessions = new HashSet<HttpSession>();
      event.getSession().getServletContext().setAttribute("allSessions",
allHttpSessions);
    }
    synchronized (allHttpSessions)
    {
      allHttpSessions.add(event.getSession());
    }
  }


Then in your code you can getServletContext().getAttribute("allSessions")
and count them.

Pretty sure the code above as it is is still not thread safe though, need to
synchronize on something else. 
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