Re: How to end a SCXML dialog in an action?

[Rahul Akolkar]

On 1/26/07, Paul Spencer <[EMAIL PROTECTED]> wrote:

Rahul,
I an getting the following when I click on the home link.  It appears that the 
dialog
is still running even though it was stopped.

<snip/>

Couldn't spot anything so dropped your code snippets into the
shale-test-dialog-scxml app. Works for me, recipe below:

1) Used SessionManagerBean and the <h:form> snippet, both verbatim
from below (snippet placed at the bottom of wizardpage1.jsp in the
test app above)

2) faces-config additions:

   <managed-bean>
       <managed-bean-name>sessionManager</managed-bean-name>
       
<managed-bean-class>org.apache.shale.examples.test.dialog.scxml.SessionManagerBean</managed-bean-class>
       <managed-bean-scope>session</managed-bean-scope>
   </managed-bean>

   <navigation-rule>
       <from-view-id>/*</from-view-id>
       <navigation-case>
           <from-action>#{sessionManager.gotoHome}</from-action>
           <from-outcome>home</from-outcome>
           <to-view-id>/menu.jsp</to-view-id>
       </navigation-case>
   </navigation-rule>

Then clicking on "Home" takes me to the test app home page (menu.jsp)
after stopping the active dialog.

-Rahul

***
* Stack Trace
***

ServletRequestAttributeAdded(org.apache.myfaces.config.beansUnderConstruction,[])
stop(id=1, name=addVendor)
remove(Removed DialogContext instance with ID '1'
handleNavigation(context='[EMAIL PROTECTED]', 
fromAction='#{sessionManager.gotoHome}', outcome='home')
Dialog instance '1' for dialog name 'addVendor' has not yet been started
java.lang.IllegalStateException: Dialog instance '1' for dialog name 
'addVendor' has not yet been started
        at 
org.apache.shale.dialog.scxml.SCXMLDialogContext.advance(SCXMLDialogContext.java:316)
        at 
org.apache.shale.dialog.faces.DialogNavigationHandler.handleNavigation(DialogNavigationHandler.java:139)
        at 
org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:84)
        at 
org.apache.shale.view.faces.ViewActionListener.processAction(ViewActionListener.java:74)
        at javax.faces.component.UICommand.broadcast(UICommand.java:106)
        at 
javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:94)
        at 
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:168)
        at 
org.apache.shale.view.faces.ShaleViewRoot.processApplication(ShaleViewRoot.java:40)
        at 
org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:343)
        at 
org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)

***
* From the managed bean
***
public class SessionManagerBean
{
     public String gotoHome()
     {
         stopActiveDialogIfAny(FacesContext.getCurrentInstance());
         return "home";
     }

     private void stopActiveDialogIfAny(FacesContext facesContext)
     {
         DialogContext dcontext = (DialogContext) 
facesContext.getExternalContext().getRequestMap().get(Constants.CONTEXT_BEAN);
         if (dcontext != null)
         {
             dcontext.stop(facesContext);
         }
     }
}

**
* Form the view
***
<h:form id="logoutForm">
        <h:commandLink action="#{sessionManager.gotoHome}">
                <h:outputText value="Home" />
        </h:commandLink>
</h:form>


Paul Spencer