invoking login method

[mark smith]

hi

i use HSQLD, jboss 4.2 and seam 2

my user class

@Entity
@Name("user")
@Scope(SESSION)
public class User implements Serializable{
 
    @Id @GeneratedValue
    private long id;
 
    private String userName;
    private String password;
 
    private String firstName;
    private String lastName;
    
    private int sexe;
    private int sexualOrientation;
    
    private String email;
    
    private Date birthday;
...
}

the login action

@Stateless
@Name("authenticator")
public class AuthenticatorAction implements Authenticator{
    
   @In
   Identity identity;
 
   @Out
   private User user;
   
   @PersistenceContext
   private EntityManager em;
   
   @In
   private transient Context sessionContext;
   @In
   private transient FacesContext facesContext;
 
    public boolean authenticate() {
        facesContext.addMessage(null, new FacesMessage("authenticate"));
        List<User> results = em.createQuery("select u from User u where userName=:username and password= :-P	 assword")
            .setParameter("username", identity.getUsername())
            .setParameter("password", identity.getPassword())
            .getResultList();
 
      
      if ( results.size()==0 )
      {
         facesContext.addMessage(null, new FacesMessage("Invalid login"));
         return false;
      }
      else
      {
         user = results.get(0);
         identity.addRole("visitor");
         return true;
      }
    }
 
}

my persistence.xml

<persistence xmlns="http://java.sun.com/xml/ns/persistence" 
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence <a href="http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"" target="_blank" rel="nofollow">http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"</a> 
             version="1.0">
             
   <persistence-unit name="colocfacile">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
      <jta-data-source>java:/colocfacileDatasource</jta-data-source>
      <properties>
         <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>
         <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
         <property name="hibernate.show_sql" value="true"/>
         <property name="hibernate.format_sql" value="true"/>
         <property name="jboss.entity.manager.factory.jndi.name" value="java:/colocfacileEntityManagerFactory"/>
      </properties>
   </persistence-unit>
    
</persistence>

in the database i done

insert into User (userName, password, firstName, lastName, sexe, sexualOrientation, email, birthday) values ('demo', 'demo', 'paul', 'smith', 1, 1, '[e-mail]', '1979-01-01')

if i enter the wrong information, i can't login

and i get this message

INFO  [STDOUT] Hibernate:
    select
        user0_.id as id0_,
        user0_.userName as userName0_,
        user0_.password as password0_,
        user0_.firstName as firstName0_,
        user0_.lastName as lastName0_,
        user0_.sexe as sexe0_,
        user0_.sexualOrientation as sexualOr7_0_,
        user0_.email as email0_,
        user0_.birthday as birthday0_
    from
        User user0_
    where
        user0_.userName=?
        and user0_.password=?
00:31:53,390 ERROR [SeamLoginModule] Error invoking login method
javax.el.ELException: javax.ejb.EJBTransactionRolledbackException: @Out attribute requires non-null value: authenticator.user
        at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:332)
        at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:341)
        at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58)
        at org.jboss.el.parser.AstValue.invoke(AstValue.java:96)
        at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
        at org.jboss.seam.core.Expressions$2.invoke(Expressions.java:174)
        at org.jboss.seam.security.jaas.SeamLoginModule.login(SeamLoginModule.java:108)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at javax.security.auth.login.LoginContext.invoke(LoginContext.java:769)
        at javax.security.auth.login.LoginContext.access$000(LoginContext.java:186)
        at javax.security.auth.login.LoginContext$5.run(LoginContext.java:706)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.login.LoginContext.invokeCreatorPriv(LoginContext.java:703)
        at javax.security.auth.login.LoginContext.login(LoginContext.java:575)
        at org.jboss.seam.security.Identity.authenticate(Identity.java:335)
        at org.jboss.seam.security.Identity.authenticate(Identity.java:324)
        at org.jboss.seam.security.Identity.quietLogin(Identity.java:265)
        at org.jboss.seam.security.Identity.isLoggedIn(Identity.java:182)
        at org.jboss.seam.security.Identity.isLoggedIn(Identity.java:172)
        at org.jboss.seam.security.Identity.authenticate(Identity.java:322)
        at org.jboss.seam.security.Identity.login(Identity.java:237)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:328)
        at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:341)
        at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58)
        at org.jboss.el.parser.AstValue.invoke(AstValue.java:96)
        at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
        at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
        at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:77)
        at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:91)
        at javax.faces.component.UICommand.broadcast(UICommand.java:383)
        at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:184)
        at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:162)
        at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:350)
        at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
        at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
        at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
        at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
        at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
        at java.lang.Thread.run(Thread.java:619)
Caused by: javax.ejb.EJBTransactionRolledbackException: @Out attribute requires non-null value: authenticator.user
        at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:87)
 

if i enter the correct information i get

INFO  [STDOUT] Hibernate:
    select
        user0_.id as id0_,
        user0_.userName as userName0_,
        user0_.password as password0_,
        user0_.firstName as firstName0_,
        user0_.lastName as lastName0_,
        user0_.sexe as sexe0_,
        user0_.sexualOrientation as sexualOr7_0_,
        user0_.email as email0_,
        user0_.birthday as birthday0_
    from
        User user0_
    where
        user0_.userName=?
        and user0_.password=?

so i would like to know how to avoid theses error when the information entered by the user is bad

any idea?

[Shailesh Kini]

Hi Mark,

You are maintaining the State "User" in a stateless session bean. You cannot guarantee that you would get the same instance of the stateless session bean everytime. If you plan to maintain state please switch to Stateful session bean. That should fix your issue. But you have to be very careful to remove the Stateful session bean once you are done.

Alternately you could just return the User from one of the methods in your stateless session bean.

Hope this helps.

[mark smith]

Originally posted by Shailesh Kini:
Hi Mark,

You are maintaining the State "User" in a stateless session bean. You cannot guarantee that you would get the same instance of the stateless session bean everytime. If you plan to maintain state please switch to Stateful session bean. That should fix your issue. But you have to be very careful to remove the Stateful session bean once you are done.

Alternately you could just return the User from one of the methods in your stateless session bean.

Hope this helps.

thank i will try...

i use this technic because Michael Yuan use it in its book... i tried the example in its book and i get the same problem...