AuthManager.java

/*
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package jsf2.demo.scrum.web.controller;

import java.security.Principal;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.inject.Named;
import javax.enterprise.context.RequestScoped;
import javax.faces.context.FacesContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;

/**
 *
 * @author Eder Magalhaes
 */
@Named("authManager")
@RequestScoped
public class AuthManager {
    
    public String logout() {
       String result="/home?faces-redirect=true";
       HttpServletRequest request = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

       try {
           request.logout();
       } catch (ServletException e) {
           Logger.getLogger (AuthManager.class.getName()).log(Level.SEVERE, null, e);
           result = "/loginError?faces-redirect=true";
       }
       return result;
    }

    public String getUsername() {
        Principal principal = FacesContext.getCurrentInstance().getExternalContext().getUserPrincipal();
        if (principal == null) {
            return null;
        }
        return principal.getName();
    }

}