package com.oreilly.jent.jsf.library.session;

/**
 * In general, you may use the code in this book in your programs and 
 * documentation. You do not need to contact us for permission unless 
 * you're reproducing a significant portion of the code. For example, 
 * writing a program that uses several chunks of code from this book does 
 * not require permission. Selling or distributing a CD-ROM of examples 
 * from O'Reilly books does require permission. Answering a question by 
 * citing this book and quoting example code does not require permission. 
 * Incorporating a significant amount of example code from this book into 
 * your product's documentation does require permission.
 * 
 * We appreciate, but do not require, attribution. An attribution usually 
 * includes the title, author, publisher, and ISBN. For example: 
 * 
 *   "Java Enterprise in a Nutshell, Third Edition, 
 *    by Jim Farley and William Crawford 
 *    with Prakash Malani, John G. Norman, and Justin Gehtland. 
 *    Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2."
 *  
 *  If you feel your use of code examples falls outside fair use or the 
 *  permission given above, feel free to contact us at 
 *  permissions@oreilly.com.
 */

import com.oreilly.jent.jsf.library.logic.UserManager;
import com.oreilly.jent.jsf.library.model.User;

public class UserSession {
    private User currentUser = null;

    public UserSession() {
        currentUser = UserManager.getGuestUser();
    }

    public User getCurrentUser() {
        return currentUser;
    }

    public void setCurrentUser(User currentUser) {
        this.currentUser = currentUser;
    }

    public boolean isLoggedIn() {
        if (currentUser == null)
            return false;
        if (currentUser == UserManager.getGuestUser())
            return false;
        return true;
    }

    public String logout() {
        currentUser = UserManager.getGuestUser();
        return "home";
    }
}