Re: problems with flash-integration

Hello

Malcolm and Geoff, thanks for your advices.
After a few failed attempts I did as you suggested, and now, flash-client is
able to communicate via XML-RPC with Tapestry.
I took the the ActionLink-Component and ActionService as base, sticked all
the URL-serviceContext (which is expected  from my ActionService-derivate)
into the flash client request, added the flash-request-evaluation and
method-invocation to the service and thats'it !!!
This appoach did not work with Flash-Remoting, which Macromedia sells for $
1000 per CPU and which works different than XML-RPC and seems only to be
useful for pure flash applications.
If there is interest, I can povide details.
I will put some of my stuff on sourceforge soon, then maybe, if Howard likes
that kind of flash-interoperabbility, the flashService and the
FlashComponent could be added to the mainstream build, its just a few lines
of code, the Apache XML-RPC-jar is also very small (on the other hand, I
don't like blown-up frameworks, if I do not need the particular  feature)

regards
Roberto

----- Original Message -----
From: "Malcolm Edgar" <[email protected]>
To: <[email protected]>
Sent: Monday, November 18, 2002 6:50 AM
Subject: Re: [Tapestry-developer] problems with flash-integration


> Hi Roberto,
>
> This sounds like a fun project. The approach I would be thinking about
here
> is creating a FlashService to handle the Flash POST requests.
>
> The FlashService would parse the POST parameters and call from your
> FlashComponent. I would look at using the
> net.sf.tapestry.engine.ActionService as template for this service.
>
> Then register the new flash service in .application file:
>
>     <service name="flash" class="com.mycorp.engine.FlashService"/>
>
> regards Malcolm
>
> >From: "Roberto Saccon" <[email protected]>
> >Reply-To: "Roberto Saccon" <[email protected]>
> >To: <[email protected]>
> >Subject: [Tapestry-developer] problems with flash-integration
> >Date: Sun, 17 Nov 2002 00:36:19 +1000
> >
> >Hello Howard and community
> >
> >First, thanks for all the efforts put into this great Web-Framework.
> >
> >Second, I try to add a new dimension to it by creating a general
> >flash-component. You might ask, what is that good for. Well, I have
created
> >a Flash-Texteditor with may features (for weblog-application). This is
much
> >easier to do in Flash than in DHTML/Flashscript and with FlashRemoting
> >(propietary) or Apache XML-RPC the Editor can talk to a servlet and even
do
> >things lilke spell-checking. But here comes my problem. After studying
for
> >two days the Tapestry RequestCycle, my Flashcomponent was neither capable
> >to store the URL nor to initialize propperly a ActionListener.
> >To handle that stuff in a simple servlet would be very easy, because the
> >FlashClient simple puts an attributes into the HttpServletRequest, which
is
> >used as argument for invoking serverside-functions, and then puts the
> >result back in the HttpServletRequest. So I created a very simple
> >FlashComponent which just handles the HTML-Tage for embeding the
> >flash-object and I put all the Logic into the servlet by overiding the
> >doService-Method in the ApplicationServlet, see my codefragments
commented
> >es flash-ugly-hack-1 and flash-ugly-hack-2.
> >Obviously, this is NOT how components should be created. But how can I
> >create a real Component with a listener which is triggered when I
"submit"
> >form the flashclient ? I tried to modify the Link- and Form-Componentts,
> >but without success. Any help is highly appreciated.
> >
> >regards
> >Roberto
> >
> >
> >abstract public class FlashApplicationServlet extends ApplicationServlet
> >{
> >...
> >...
> >protected void doService(HttpServletRequest request, HttpServletResponse
> >response)
> >throws IOException, ServletException
> >{
> >   //flash-ugly-hack-1
> >   boolean flashRequest = false;
> >   String flashParameter0 = null;
> >   Object o = request.getAttribute("FLASH.PARAMS");
> >   if ( o != null)
> >   {
> >     flashRequest = true;
> >     List args = (List) o;
> >     flashParameter0 = (String) args.get(0);
> >   }
> >
> >   RequestContext context = null;
> >   try
> >     {
> >       // Create a context from the various bits and pieces.
> >
> >       context = new RequestContext(((ApplicationServlet) this), request,
> >response);
> >       // The subclass provides the engine.
> >       IEngine engine = getEngine(context);
> >
> >       // flash-ugly-hack-2
> >       if (flashRequest)
> >       {
> >         String result = flashParameter0 + ((Visit)
> >engine.getVisit()).getUser().getEmail();
> >         request.setAttribute("FLASH.RESULT", result);
> >       }
> >.......
>
>
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