Hi all

I have a java application that accesses EJBs on a JBoss application server. My application requires the user to log in, providing username and password. After successful authentication, the user can access the application.

I would now like to be able to extract the users credentials (username) while he is logged in and workin in the application. How can this be done? how can i extract credential from a current session?

I currently use the following code (client side):
-----------------------
public static String getUserSubject(LoginContext lc) throws Exception
{
String subject = "";

try
{
Subject sub = lc.getSubject();
Set principals = sub.getPrivateCredentials();
Object[] objCredentials = principals.toArray();
String[] sPrincipals = null;
for(int i=0; i< objCredentials.length; i++)
{
sPrincipals = (String)objCredentials;
System.out.println("Credentials (lc): " +sPrincipals);
}
}
catch (Exception ex)
{
logger.error("Problem getting login context information.");
System.out.println("ERROR: "+ex);
}
return subject;
}
---------------------------------------

But the above code returns only 'null'. What's wrong here?

Cheers,
M.

u set
<code>String subject = "";</code>
at the very beginning.

but then u never do anything else with the variable again.

are u expecting it to return the emptry string "" instead of null or what?

Hi there

Right you are. But that I am not currently relying on the subject string. I get nothing back if I, for example, use:

Subject sub = lc.getSubject();
Set principals = sub.getPrivateCredentials();
System.out.println("Principals: "+principals.size());

principals.size() returns 0, so there seems to be nothing to get...

Any ideas?

Michael

No worries! I have been able to resolve the issue in the mean time.

Cheers,
Michael

can you write the solution, please!! I've the same problem and I looking for a solution.


thanks