Re: User management / Session management question

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On Wed, 27 Nov 2002, Boris Klug wrote:

> ... 
> 1) How can I get a list of all active session? At best with the related 
> session data and the last requested presentation object? I want to use it for 
> a admin page so the admin can see who is logged in.
> 

for this try:

#############################################################################
Vector sessions=null;
Enhydra.register(Thread.currentThread(), comms.application);
try{
    sessions = activeSessions();
}finally{
    Enhydra.unRegister(Thread.currentThread());
}

StandardSession s;
Date d = new Date();
SimpleDateFormat df = new SimpleDateFormat("dd.MM.yy HH:mm:ss");
buf.append("<TR><TD>Key</TD><TD>Created</TD><TD>Expires</TD><TD>LastUsed</TD><TD>Used
Time</TD><TD>isNew?</TD></TR>\n");
for(int i=0; i <  sessions.size(); i++){
        s = (StandardSession) sessions.elementAt(i);
        buf.append("<TR><TD>"); buf.append(s.getSessionKey() ); 
buf.append("</TD>");
        buf.append("<TD>")    ; d.setTime(s.getTimeCreated()); 
buf.append(df.format( d ) ); buf.append("</TD>");
        buf.append("<TD>")    ; d.setTime(s.getTimeExpires()); 
buf.append(df.format( d ) ); buf.append("</TD>");
        buf.append("<TD>")    ; d.setTime(s.getTimeLastUsed()); 
buf.append(df.format( d ) ); buf.append("</TD>");
        buf.append("<TD>")    ; 
buf.append(((s.getTimeLastUsed()-s.getTimeCreated())/1000.)); buf.append(" 
s</TD>");
        buf.append("<TD>")    ; buf.append(s.isNew()); 
buf.append("</TD></TR>\n");
        ...
}
...

private Vector activeSessions() {
    Vector sessions = new Vector();
    try{
        StandardSessionManager sm =
        (StandardSessionManager)Enhydra.getSessionManager();
        Enumeration keys = sm.getSessionKeys();
        Session session;
        while(keys.hasMoreElements()) {         

sessions.addElement(sm.getSaveSession(Thread.currentThread(),(String)keys.nextElement()));
        }
    } catch (Exception e) {
        //throw e;
    }
    return sessions;
}
####################################################################

Attention! i use a method getSaveSession(...) because getSession(...) set the
LastUsed time stamp. So i patch this new Funktion in the StandardSessionManager
class.

(The Code is part of a quick hack info servlet :-)

- -- 
sincerely

Mike Schubert             Tel.: ++49-351-3 18 09 15
interface projects GmbH   Fax.: ++49-351-3 36 11 87
Tolkewitzer Str.49        E-Mail: mike.schubert@xxxxxxxx
D-01277   D R E S D E N   HTTP:   www.interface-business.de/

"FreeBSD is like a wigwam, no windows, no gates and an apache inside."

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