3 Replies Latest reply on Jan 20, 2010 10:29 AM by Raffaele Marcello

    DispatchedHttpServletRequest and related jstl fmt problem

    l.forni Newbie

      Hi all,

      I found this topics:
      1) http://www.jboss.com/index.html?module=bb&op=viewtopic&t=76350 (previous post of mine)
      2) http://www.jboss.com/index.html?module=bb&op=viewtopic&t=70971

      Finally i found where is the problem...

      The following methods of org.jboss.portal.portlet.impl.DispatchedHttpServletRequest return null values.
      Looking at the code, i saw a comment that said what they have to do.

      Modified methods:

      // Must be based on properties provided by the getProperties method of the PortletRequest interface

      public String getHeader(String s)
      {
      return rreq.getProperty(s);
      }

      public Enumeration getHeaders(String s)
      {
      return rreq.getProperties(s);
      }

      public Enumeration getHeaderNames()
      {
      return rreq.getPropertyNames();
      }

      With this modification, jstl fmt doesn't throw NullPointerException anymore, but now locale is choosen by language's browser settings.

      So now i have to use language preferences of the user logged in (if set it).
      The first solution that i found is to modify org.jboss.portal.portlet.impl.PortletRequestImpl .
      I'm not satisfied with this, it seems to be a workaround!! But it works!
      If user logged in has a preferred language, will be used it, otherwise will be used default language.

      Modified methods:

      // PLT.11.1.4

      public String getProperty(String name)
      {
      if (name.equalsIgnoreCase("accept-language")){
      return getLocale().toString();
      }

      return requestContext.getPropertyValue(name);
      }

      public Enumeration getProperties(String name)
      {
      if (name.equalsIgnoreCase("accept-language")){
      Vector v = new Vector();
      v.add(userContext.getLocale().toString());
      return v.elements();
      }

      return requestContext.getPropertyValues(name);
      }

      public Enumeration getPropertyNames()
      {
      Set names = requestContext.getPropertyNames();
      return Collections.enumeration(names);
      }

      and

      public Enumeration getLocales()
      {
      Vector v = new Vector();
      v.add(userContext.getLocale());
      return v.elements();
      }



      One question: if i would like to let an anonymous user to choose a language different from that is shown... how can i do this? any idea?

      Unfortunately i haven't much time to understand well the build process of jboss portal, so i can't write a Unit Test for this. (if someone has some documentation to point me, i'm very interested to contribute to this project!)

      PS: I have setup an enviroment of JBP 2.2.1RC2 + eclipse to develop and debug portlet. May i write a tutorial? (if someone is interested)

      Hope this helps!!

      Great works! Thanx to all!!

      Luca Forni