0 Replies Latest reply on Jul 15, 2011 8:20 AM by Stefan Schulz

    Seam 2.2.0.GA exception handling - reloaded

    Stefan Schulz Newbie

      Hello.


      This is my second post about this topic, the first was not so very succesful, because it was a bit confuse:


      http://seamframework.org/Community/ExceptionHandlingQuestion


      Sorry for that.


      So now i am going to describe once again in detail what i did and what my problem (which should by easy to solve for anyone having more experience in seam than me, im a rookie) is:


      I used seam-gen from Seam 2.2.0.GA to create a sample project (to be run in JBoss 5.1.0.GA). After that, i created a new action via


      seam new-action
      



      named listOffers, which generated the following xhtml page:


      <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      <ui:composition xmlns="http://www.w3.org/1999/xhtml"
          xmlns:s="http://jboss.com/products/seam/taglib"
          xmlns:ui="http://java.sun.com/jsf/facelets"
          xmlns:f="http://java.sun.com/jsf/core"
          xmlns:h="http://java.sun.com/jsf/html"
          xmlns:rich="http://richfaces.org/rich"
          xmlns:a="http://richfaces.org/a4j"
          template="layout/template.xhtml">
      <ui:define name="body">
          <rich:panel>
              <f:facet name="header">listOffers</f:facet>
              <h:form id="listOffersForm">
                  <h:commandButton id="listOffers" value="listOffers!"
                                   action="#{listOffers.listOffers}"/>
              </h:form>
          </rich:panel>
      </ui:define>
      </ui:composition>
      



      My plan was to display some entities looking like this


      package org.jboss.seam.example.booking.model;
      
      import javax.persistence.Entity;
      import javax.persistence.GeneratedValue;
      import javax.persistence.Id;
      import javax.persistence.TableGenerator;
      
      import org.jboss.seam.annotations.Name;
      
      @Entity
      @Name("specialOffer")
      @TableGenerator(name = "UniqueIdGenerator", table = "ID_GEN", pkColumnName = "ID_NAME", valueColumnName = "ID_VAL", pkColumnValue = "globalkey", allocationSize = 10)
      public class SpecialOffer {
      
           private Long id;
           private String name;
           private String description;
           
           @Id
           @GeneratedValue
           public Long getId() {
                return id;
           }
      
           public void setId(Long id) {
                this.id = id;
           }
      
           public String getName() {
                return name;
           }
      
           public void setName(String name) {
                this.name = name;
           }
      
           public String getDescription() {
                return description;
           }
      
           public void setDescription(String description) {
                this.description = description;
           }
      }
      
      



      in this page, so i modified it like this:


      <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      <ui:composition xmlns="http://www.w3.org/1999/xhtml"
          xmlns:s="http://jboss.com/products/seam/taglib"
          xmlns:ui="http://java.sun.com/jsf/facelets"
          xmlns:f="http://java.sun.com/jsf/core"
          xmlns:h="http://java.sun.com/jsf/html"
          xmlns:rich="http://richfaces.org/rich"
          xmlns:a="http://richfaces.org/a4j"
          template="layout/template.xhtml">
      <ui:define name="body">
          <rich:panel>
              <f:facet name="header">listOffers</f:facet>
              <h:form id="listOffersForm">
           <h:dataTable id="offers" value="#{offers}" var="offer" rendered="#{offers.rowCount>0}">
                <h:column>
                     <f:facet name="header">Name</f:facet>
                     #{offer.name}
                </h:column>
                <h:column>
                     <f:facet name="header">Description</f:facet>
                     #{offer.description}
                </h:column>
           </h:dataTable>
              </h:form>
          </rich:panel>
      </ui:define>
      </ui:composition>
      



      Below is the source code of the stateful session bean


      package org.jboss.seam.example.booking.action;
      
      import java.util.List;
      
      import javax.ejb.Stateless;
      import javax.persistence.EntityManager;
      import javax.persistence.PersistenceContext;
      
      import org.jboss.seam.annotations.Factory;
      import org.jboss.seam.annotations.In;
      import org.jboss.seam.annotations.Logger;
      import org.jboss.seam.annotations.Name;
      import org.jboss.seam.annotations.datamodel.DataModel;
      import org.jboss.seam.annotations.datamodel.DataModelSelection;
      import org.jboss.seam.example.booking.model.SpecialOffer;
      import org.jboss.seam.international.StatusMessages;
      import org.jboss.seam.log.Log;
      
      @Stateless
      @Name("listOffers")
      public class ListOffersBean implements ListOffers {
           
           @Logger
           private Log log;
      
           @In
           StatusMessages statusMessages;
           
           @DataModel
           private List<SpecialOffer> offers;
           
           @DataModelSelection
           private SpecialOffer offer;
           
           @PersistenceContext
           private EntityManager em;
      
           public SpecialOffer getOffer() {
                return offer;
           }
      
           @Factory
           public void getOffers() {
                offers = em.createQuery("select s from SpecialOffer s").getResultList();
           }
      }
      



      and its local interface


      package org.jboss.seam.example.booking.action;
      
      import javax.ejb.Local;
      
      import org.jboss.seam.example.booking.model.SpecialOffer;
      
      @Local
      public interface ListOffers {
           
           public void getOffers();
      
           public SpecialOffer getOffer();
      }
      



      bound to the view (which are fetching the data from the database).


      Everything works fine, the data from the table is displayed in my browser (Internet Explorer 7.5730.13) when invoking the action.


      My problem is, that when i restrict the access to the stateful session bean like this


      @Stateful
      @Name("hotelBooking")
      @Restrict("#{identity.loggedIn}")
      public class HotelBookingAction implements HotelBooking
      {
      //nothing modified in here, i just added the restrict annotation above
      }
      



      and i try to access the action without being logged in, the (logically) following


      org.jboss.seam.security.NotLoggedInException
      



      is not handled correctly as defined in the projects pages.xml (which i DID NOT modify):


      <exception class="org.jboss.seam.security.NotLoggedInException">
           <redirect view-id="/login.xhtml">
                <message severity="warn">#{messages['org.jboss.seam.NotLoggedIn']}</message>
           </redirect>
      </exception>
      



      I am NOT getting redirected to the login screen, instead of that i just get a stack trace in my browser:


      org.jboss.seam.security.NotLoggedInException
           at org.jboss.seam.security.Identity.checkRestriction(Identity.java:217)
           at org.jboss.seam.security.SecurityInterceptor$Restriction.check(SecurityInterceptor.java:113)
           at org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterceptor.java:160)
           at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
           at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
           at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54)
      ...
      



      Does anyone know why the redirect does not work?


      Thanks in advance,


      Stefan