s:graphicImage problems with Sun JSF Impl

[mustaghattack]

I have few problems with seam's graphicImage component.
* NullPointerException due to getRenderType() != null
This is the encodeChildren method of UIComponentBase (Sun impl)

 /**
 * @throws NullPointerException {@inheritDoc}
 */
 public void encodeChildren(FacesContext context) throws IOException {

 if (context == null) {
 throw new NullPointerException();
 }
 if (!isRendered()) {
 return;
 }
 String rendererType = getRendererType();
 if (rendererType != null) {
 getRenderer(context).encodeChildren(context, this);
 }

 }

Here is the UIGraphicImage component :

 @Override
 protected Renderer getRenderer(FacesContext context)
 {
 return null;
 }

But inherit a render type != null :

 public HtmlGraphicImage() {
 super();
 setRendererType("javax.faces.Image");
 }

My solution is easy : add a 0-arg constructor which disable the render type :

 public UIGraphicImage() {
 super();
 setRendererType( null );
 }

This is working now (I have the < img > tag in my page).

* Next problem : for some reason the DynamicImageResource doesnt get the same instance of DynamicImageStore, so the image is not found !
It's weird since the DynamicImageStore is a Session scope component.
=> I gave up at this point :)

[pmuir]

"mustaghattack" wrote:
* NullPointerException due to getRenderType() != null

This is fixed in 1.3ALPHA1 released yesterday.

* Next problem : for some reason the DynamicImageResource doesnt get the same instance of DynamicImageStore, so the image is not found !
It's weird since the DynamicImageStore is a Session scope component.
=> I gave up at this point :)

I just checked the ui example (1.3ALPHA1) - working fine for me...

[pmuir]

Does the ui example work for you?

[mustaghattack]

Actually not : I did "ant war.tomcat" in the ui example folder. I put it in my tomcat (5.5.23) webapps. Tomcat start successfully. But when enter one of the link (fileUpload for example) on the main page I get :

15:10:49,124 ERROR [ExceptionFilter] could not roll back transaction
javax.naming.NamingException: Local server is not initialized
 at org.jnp.interfaces.LocalOnlyContextFactory.getInitialContext(LocalOnlyContextFactory.java:45)

...

15:10:50,265 ERROR [SeamPhaseListener] uncaught exception
javax.faces.el.EvaluationException: Cannot set value for expression '#{personHome.id}' to a new value of type java.lang.Integer
 at org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:310)

Thanks for your answer

[mustaghattack]

BTW I use the fileUpload without problem. Here's my facelets page :

 <rich:panel>
 <f:facet name="header">#{messages['edit.file_upload']}</f:facet>
 <h:form enctype="multipart/form-data">
 <s:fileUpload data="#{questionnaire.picture}"
 accept="images/png,images/jpeg,images/gif"/>
 <h:commandButton value="Load"
 />
 </h:form>
 </rich:panel>

And a bit further I display the picture like this :

 <s:graphicImage value="#{questAnswer.target.picture}"
 rendered="#{not empty questAnswer.target.picture}"/>
 <h:outputText value="Picture"
 rendered="#{not empty questAnswer.target.picture}"/>

[pmuir]

I've never tried the ui example on tomcat - if you want to raise an issue, we can fix that.

[mustaghattack]

Ok,
http://jira.jboss.com/jira/browse/JBSEAM-1457

[mustaghattack]

Ok I have the solution : doesn't work when cookies are not allowed. The session is destroyed regularly.
I'm not a Servlet expert but why does it happen ??

[pmuir]

Thanks for chasing this up! Sorry, no idea on your question though ;)