Help!

[claudia.icmc]

Hi Guys!

I'm migrating a tool to richfaces. The tool has Session-based and it was listed using h:commandLink when it used jsf:

<h:column>
 <f:facet name="header" >
 <h:outputText value="#{msgs.items_title}"/>
 </f:facet>
 <h:commandLink id="enterLink" action="#{WbBean.join}" rendered="#{Bean.canJoin}">
 <h:outputText value="#{entry.title}"/>
 </h:commandLink>
 <h:outputText value="#{entry.title}" rendered="#{not Bean.canJoin}"/>
</h:column>

When a user clicks in link, the action invokes a void method. This method prepares to send information to the servlet that will generate the JNLP file. So, an application open with Java WebStart.

I tried using a4j:commandLink, but it didn't open Java WebStart. A page was opened and the JNLP was printed.

Any suggestion?

Thanks

[claudia.icmc]

Hi!

The application works fine when I use jsf:

<h:commandLink id="enterLink" action="#{Bean.join}" rendered="#{Bean.canJoin}">

But if I replace with ajax4jsf:

<a4j:commandLink id="enterLink" action="#{Bean.join}" rendered="#{Bean.canJoin}">

The page printed the JNLP.

I think the tag is wrong. The code is right because the application works fine with jsf.
How to create a link using ajax4jsf that it will open my webStart application?!

Thanks!

[nbelaevski]

Hi,

a4j:commandLink doesn't allow direct file downloads.
Either use h:commnadLink or do redirect to JNLP file in action.

[claudia.icmc]

Hi!

The method called (when a user clicks in link) is a void of my bean. This method redirect to JNLP file :

...
 ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
 HttpServletRequest request = (HttpServletRequest) externalContext.getRequest();
 HttpServletResponse response = (HttpServletResponse) externalContext.getResponse();
 request.setAttribute(...);
 ...
 ExternalContext extContext = (ExternalContext) FacesContext.getCurrentInstance().getExternalContext();
 ServletContext servletContext = (ServletContext) extContext.getContext();
 ServletContext newcontext = (ServletContext) servletContext.getContext("/my-tool");
 RequestDispatcher dispatcher = newcontext.getRequestDispatcher("/my-servlet-mapping");
 dispatcher.forward(request, response);
 FacesContext.getCurrentInstance().responseComplete();

A class is called using servlet mapping.This class extends HttpServlet and is a servlet that dynamically generates the JNLP file for clients:

...
 response.setContentType("application/x-java-jnlp-file");
 String jnlp = "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?><jnlp spec=\"1.0+\""+ " codebase=\""+ host + ":" + port + "/"+ "my-tool"+ "\">" ... + "<argument>"+ request.getAttribute(" ... ")+ "</argument>" + ...;
 out.println(jnlp);

But, when a user clicks in link, the page prints the jnlp. My application doesn't open with Java WebStart.

Any idea?

[nbelaevski]

...
 ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext()
;
 HttpServletRequest request = (HttpServletRequest) externalContext.getRequest();
 HttpServletResponse response = (HttpServletResponse) externalContext.getResponse();
 request.setAttribute(...);
 ...
 ExternalContext extContext = (ExternalContext) FacesContext.getCurrentInstance().getExte
rnalContext();
 ServletContext servletContext = (ServletContext) extContext.getContext();
 ServletContext newcontext = (ServletContext) servletContext.getContext("/my-tool");
 RequestDispatcher dispatcher = newcontext.getRequestDispatcher("/my-servlet-mapping");
 dispatcher.forward(request, response);
 FacesContext.getCurrentInstance().responseComplete();

I see forward there, but no redirect.

[claudia.icmc]

I can't redirect to adress that have o jnpl. The problem is that there isn't a "static address" for the jnlp. Because it is generated dynamically:

...
 response.setContentType("application/x-java-jnlp-file");
 String jnlp = "<?xml version=\"1.0\" encoding=\"ISO-8859-\"?><jnlp spec=\"1.0+\""+ " codebase=\""+ host + ":" + port + "/"+"my-tool"+ "\">" ... + "<argument>"+ request.getAttribute(" ... ")+"</argument>" + ...;
 out.println(jnlp);

I need of a servlet, that's why I use a mapping.

[nbelaevski]

Use h:commandLink then.