[jboss-user] [JBoss Seam] - Re: Strange Seam Actor component problem

[m.makowski]

Thanks for the reply. I used LoginAction from the dvd store example which also uses stateless bean, provides the same functionality and does work. Could you please explain what's the difference?


  | package com.jboss.dvd.seam;
  | 
  | import java.io.Serializable;
  | 
  | import javax.ejb.Stateless;
  | import javax.persistence.EntityManager;
  | import javax.persistence.PersistenceContext;
  | 
  | import org.jboss.seam.Seam;
  | import org.jboss.seam.annotations.In;
  | import org.jboss.seam.annotations.Name;
  | import org.jboss.seam.contexts.Context;
  | import org.jboss.seam.core.Actor;
  | import org.jboss.seam.core.FacesMessages;
  | 
  | @Stateless
  | @Name("login")
  | public class LoginAction 
  |     implements Login,
  |                Serializable
  | {
  |     private static final String USER_VAR = "currentUser";
  | 
  |     @PersistenceContext
  |     private EntityManager em;
  | 
  |     @In Context sessionContext;
  |     
  |     @In Actor actor;
  |     
  |     String username = "";
  |     String password = "";
  | 
  |     public String getUserName() {
  |         return username;
  |     }
  |     public void setUserName(String username) {
  |         this.username = username;
  |     }
  | 
  |     public String getPassword() {
  |         return password;
  |     }
  |     public void setPassword(String password) {
  |         this.password = password;
  |     }
  |     
  |     public String login() {
  |         try {
  |             User found =  
  |                 (User) em.createQuery("select u from User u where u.userName = :userName and u.password = :password")
  |                 .setParameter("userName", username)
  |                 .setParameter("password", password)
  |                 .getSingleResult();
  | 
  |             sessionContext.set(USER_VAR, found);
  |             
  |             actor.setId(username);
  |             
  |             if (found instanceof Admin) {
  |                 actor.getGroupActorIds().add("shippers");
  |                 actor.getGroupActorIds().add("reviewers");
  |                 System.out.println("ADMIN");
  |                 return "admin";
  |             } else {
  |                 return null; // redisplay the current page
  |             }
  |         } catch (Exception e) {
  |             // this message is lost in the session invalidation
  |             FacesMessages.instance().addFromResourceBundle("loginErrorPrompt");
  |             Seam.invalidateSession();
  |             return "home";
  |         }
  |     }
  | 
  |     public String logout() {
  |         Seam.invalidateSession();
  |         sessionContext.set(USER_VAR, null);
  |         sessionContext.set("loggedIn", null);
  |         return "logout";
  |     }
  | 
  |     private User currentUser() {
  |         return (User) sessionContext.get(USER_VAR);
  |     }
  | 
  |     public boolean isLoggedIn() {
  |         return currentUser() != null;
  |     }
  | 
  |     public boolean isCustomer() {
  |         User user = currentUser();
  |         return (user!=null) && (user instanceof Customer);
  |     }
  | 
  |     public boolean isAdmin() {
  |         User user = currentUser();
  |         return (user!=null) && (user instanceof Admin);
  |     }
  |     
  |     public String adminCheck() {
  |     	if(isAdmin())
  |     	{    		
  |     		return null;
  |     	}    	
  |     	return "home";
  |     	
  |         
  |     }
  | }
  | 

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