RE: Kuddi: xmlrpc'ing vectors

I've used this successfully to do an MP3 player using the Lightfoot Java
processor that talks to JReceiver. This is all using J2ME cldc technology
and works great!

Regards

Nick


> -----Original Message-----
> From: [email protected] [mailto:[email protected]]On
> Behalf Of Thomas Koch
> Sent: 07 March 2003 08:16
> To: [email protected]
> Cc: [email protected]
> Subject: Re: Kuddi: xmlrpc'ing vectors
>
>
> Henrik,
> we've encoutered the same problem when starting our tests with the
> kXmlRpc lib and found some fixes for this. I posted an according message
> to the list in September last year.It's attached for your information.
>
> As there was no response on the list and also no updates of code or list
> archive I do now assume that the kxml-rpc project is 'on-hold'. Any
> 'official' comment from the kxml-rpc maintainers would be highly
> welcome.
>
> BTW, we're also doing work with kxml-rpc lib and J2ME midlets - I'd be
> interested in experience of other users with that technology
> combination.
>
> kind regards,
>
> Thomas Koch
> __________________________________________________________
> Thomas Koch                         [email protected]
> OrbiTeam Software GmbH              http://www.orbiteam.de
> Endenicher Allee 35                 phone: +49 228 4101400
> 53121 Bonn                          fax:   +49 228 4101401
> Germany
>
> ----- Original Message -----
> From: "Henrik Plate (GMX)" <[email protected]>
> To: <[email protected]>
> Sent: Thursday, March 06, 2003 5:43 PM
> Subject: Kuddi: xmlrpc'ing vectors
>
>
> > Hi everybody!
> >
> > Beside (k)XMLRPC is really lightweight, easy to use/learn and
> efficient I do
> > have some problems transfering vectors from a XMLRPC server to a
> MIDlet.
> >
> > I've got a servlet (source below, modified Apache class
> > org.apache.xmlrpc.XmlRpcProxyServlet) which acts as a XMLRPC server.
> The
> > servlet itself is registered as the default handler and got the method
> > getProviders, which simply returns a newly constructed Vector. Other
> methods
> > like getServerInfo, which returns a String, succeed.
> >
> > When I call the servlet with a J2SE client (slightly modified Apache
> > example) the resulting object is a Vector. Fine.
> >
> > When I call the method from a MIDlet, the Wireless Toolkit prints the
> > following exception:
> >
> > org.kxml.io.ParseException: unexpected: StartTag <data> line: -1 attr:
> null
> > @-1:-1
> > at org.kxml.parser.AbstractXmlParser.read(+53)
> > at org.kxmlrpc.XmlRpcParser.parseValue(+15)
> > at org.kxmlrpc.XmlRpcParser.parseArray(+23)
> > at org.kxmlrpc.XmlRpcParser.parseValue(+241)
> > at org.kxmlrpc.XmlRpcParser.parseParams(+46)
> > at org.kxmlrpc.XmlRpcParser.parseResponse(+144)
> > at org.kxmlrpc.XmlRpcClient.execute(+200)
> > at midlet.ServerConnection.callMethod(+15)
> > at midlet.XmlRpcTestControl$1.run(+18)
> >
> > The via HTTP transfered xml response of the servlet is
> >
> >     <?xml version="1.0" encoding="ISO-8859-1"?>
> >     <methodResponse>
> >         <params>
> >             <param>
> >                 <value>
> >                     <array>
> >                         <data>
> >                             <value>String 1</value>
> >                             <value>String 2</value>
> >                         </data>
> >                     </array>
> >                 </value>
> >             </param>
> >         </params>
> >     </methodResponse>
> >
> > Seems to be OK.
> >
> > Does kXMLRPC miss the implementation of Vector transfers? I can't
> imagine,
> > cause the parser fails at the data-, not the array-tag. Is it
> versioning
> > problem?
> >
> > Here's my enviroment:
> >
> > kXMLRPC 0.6
> > XMLRPC 1.1 from Apache
> > J2SE 1.4.1
> > Tomcat 4.0.1
> >
> > Relevant part of the servlet source:
> >
> >     import org.apache.xmlrpc.*;
> >
> >     public class XmlRpcServlet extends HttpServlet  {
> >
> >         // The xml-rpc server.
> >         final XmlRpcServer server = new XmlRpcServer();
> >
> >         public void init(ServletConfig config)throws ServletException{
> >
> >             // Config the xml-rpc server.
> >             XmlRpc.setDebug(true);
> >             server.addHandler("$default", this);
> >         }
> >
> >         public String getServerInfo() { return "XmlRpcServlet"; }
> > //"$Name$"; }
> >
> >         public Vector getProviders() {
> >             final Vector v = new Vector();
> >             v.add("String 1");
> >             v.add("String 2");
> >             return v;
> >         }
> >
> >         public void service(HttpServletRequest req,
> HttpServletResponse
> > res)throws ServletException, IOException{
> >             byte[] result = server.execute(req.getInputStream ());
> >             res.setContentType("text/xml");
> >             res.setContentLength(result.length);
> >             OutputStream output = res.getOutputStream();
> >             output.write(result);
> >             output.flush();
> >         }
> >     }
> >
> > Another question: If a XMLRPC call fails, the XmlRpcClient class
> returns the
> > result of the previous call. Is that desireable? Not sure of this.
> >
> > Greetings und thanks in advance,
> > Henrik
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Kuddi mailing list
> > [email protected]
> > http://support.enhydra.org/mailman/listinfo.cgi/kxmlrpc
> >
>