Login and logout... using jboss seam

[freedom2k6]

Hai friends...

How to do authentication in jboss seam...


This is my java class where i am authentication ....
----------------------------------------------------



import java.util.ArrayList;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.Query;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Out;
import org.jboss.seam.faces.FacesMessages;
import org.jboss.seam.log.Log;
import org.jboss.seam.security.Identity;

import com.camsoft.camera.administration.user.entity.Users;

@Name("authenticator")
public class Authenticator{
     @Logger
     Log log;

     @In
     Identity identity;
     
    @Out(value="users",required=true,scope=ScopeType.SESSION)
    private Users users;
   
    @In(create=true)
    private EntityManager entityManager;
  
     private List menuList = new ArrayList();
   
    public Users getUsers() {
          return users;
     }

     public void setUsers(Users user) {
          this.users = user;
     }
     public boolean authenticate() {
          boolean result = false;
            if (getUsers() == null) {
               try {
                    Identity identity = Identity.instance();
                    Query query = entityManager.createQuery("from Users where userName = :userName " +
                              "and encryptedUserPassword = :password").setParameter("userName", identity.getUsername())
                              .setParameter("password", identity.getPassword());
                             
                     setUsers((Users) query.getSingleResult());
              }catch (NoResultException nre) {
                  FacesMessages.instance().add("Username/password do not match");
               }
           }
           result = (getUsers() == null ? false : true);
          
           return result;
     }
     
}

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I have two login and logout(screen) in same web application...
How can i use the same identity class to authentication ....


I have admin java object... from which i can get the username and password .... to login into administration screen...

I have user java object from which i can get the username and password .... to login into user screen...


After login into administration screen... i can able to login to user .... screen....


First login to administration.... and then login to user screen...

After logout of user screen then i can able to logout of administration screen....







Please help me....
shashi