get Subject with given sessionID

[Jason Eacott]

Hi all,
 I'm having some trouble using Shiro, any help appreciated.
I've created a simple MethodInterceptor that appropriately wraps my code 
and tries to setup the Shiro subject & session etc.
I'm in a standalone (not web) spring environment, I dont have any 
IPaddress information, but I do have a string I want to use as a SessionId.

I thought duplicating the code from the SecureRemoteInvocationExecutor 
would do it, but it doesnt.

 SecurityManager securityManager =
                    this.securityManager != null ? this.securityManager 
: SecurityUtils.getSecurityManager();

            Subject.Builder builder = new Subject.Builder(securityManager);

builder.sessionId(MySessionId);

Subject subject = builder.buildSubject();//fails here with session 
doesnt exist

so I found a thread that hinted at something so I tried this instead:
            SecurityManager securityManager =
                    this.securityManager != null ? this.securityManager 
: SecurityUtils.getSecurityManager();

SimpleSession session = new SimpleSession();

            session.setId(MySessionId);
            Subject subject = new
    Subject.Builder(securityManager).session(session).buildSubject();

this works, but when its called again with the same MySessionId the 
session is recreated here so nothing sticks.

I'd very much appreciate an example of how this is supposed to be done.
how does the principle get set etc?


thank you.
Jason.