Hi Lukas,
No, I don't believe you will need to have a name service running for the
example that you mentioned. This should be a straight forward setup using
the Yoko binding and an a CORBA client.
Usually, you get a BAD_PARAM exception when doing a narrow on an object
which is of the wrong type, for example, trying to narrow something as a
calculator when it is not. However, I don't see why this could happening
yet in your code. I will try and set up a small test using the code you
provided to see if I can see what is happening.
I'll let you know what I find out.
Cheers,
Darren
On 7/19/07, Lukas Zapletal <[EMAIL PROTECTED]> wrote:
I googled that Name Server may not have started. Proposed solution is
to start the Java IDL Name Server:
<JDK1.4 Home>/bin/ tnameserv -ORBInitialPort 1050
Do I need the nameserver when accessing WS in CXF/Yoko Binding from
JacORB? I will try to run the JacORBs naming service.
I am sorry I am new to CORBA. Thanks for help
LZ
2007/7/19, Lukas Zapletal <[EMAIL PROTECTED]>:
> Hello all!
>
> I have problem with calling WS from corba. My interface is simple:
>
> module com {
> module pikeelectronic {
> module calc {
>
> interface Calculator {
> double add(in double x, in double y);
> double sub(in double x, in double y);
> double mul(in double x, in double y);
> double div(in double x, in double y);
> };
> };
> };
> };
>
> I have converted this to WSDL and created a WS using CXF wsdl2java
tools:
>
>
> /**
> * Please modify this class to meet your needs
> * This class is not complete
> */
>
> package com.pikeelectronic.calc.wsserver;
>
> import java.util.logging.Logger;
> import javax.jws.WebMethod;
> import javax.jws.WebResult;
> import javax.xml.ws.RequestWrapper;
> import javax.xml.ws.ResponseWrapper;
>
> /**
> * This class was generated by the CXF 2.0-incubator
> * Wed Jul 18 14:05:16 CEST 2007
> * Generated source version: 2.0-incubator
> *
> */
>
> @javax.jws.WebService(name = "ComPikeelectronicCalcCalculator",
> serviceName = "com.pikeelectronic.calc.CalculatorCORBAService",
> portName = "
com.pikeelectronic.calc.CalculatorCORBAPort",
> targetNamespace =
> "http://schemas.apache.org/yoko/idl/calc";,
> wsdlLocation = "file:calc.wsdl" ,
> endpointInterface =
> "com.pikeelectronic.calc.wsserver.ComPikeelectronicCalcCalculator")
>
> public class ComPikeelectronicCalcCalculatorImpl implements
> ComPikeelectronicCalcCalculator {
>
> private static final Logger LOG =
> Logger.getLogger(
ComPikeelectronicCalcCalculatorImpl.class.getPackage().getName());
>
> /* (non-Javadoc)
> * @see
com.pikeelectronic.calc.wsserver.ComPikeelectronicCalcCalculator#sub
(double
> x ,)double y )*
> */
> public double sub(
> double x,
> double y
> )
> {
> LOG.info("Executing operation sub");
> return x - y;
> }
>
> /* (non-Javadoc)
> * @see
com.pikeelectronic.calc.wsserver.ComPikeelectronicCalcCalculator#div
(double
> x ,)double y )*
> */
> public double div(
> double x,
> double y
> )
> {
> LOG.info("Executing operation div");
> return x / y;
> }
>
> /* (non-Javadoc)
> * @see
com.pikeelectronic.calc.wsserver.ComPikeelectronicCalcCalculator#mul
(double
> x ,)double y )*
> */
> public double mul(
> double x,
> double y
> )
> {
> LOG.info("Executing operation mul");
> return x * y;
> }
>
> /* (non-Javadoc)
> * @see
com.pikeelectronic.calc.wsserver.ComPikeelectronicCalcCalculator#add
(double
> x ,)double y )*
> */
> public double add(
> double x,
> double y
> )
> {
> LOG.info("Executing operation add");
> return x + y;
> }
>
> }
>
> I have implemented a client in JacORB:
>
> package com.pikeelectronic.calc.CORBAClient;
>
> /**
> * An example for using the Dynamic Invocation Interface
> */
> //import org.omg.CosNaming.*;
>
> public class Client
> {
> public static void main( String[] args )
> {
> org.omg.CORBA.ORB orb = null;
>
> try
> {
> orb = org.omg.CORBA.ORB.init(args,null);
>
> org.omg.CORBA.Object obj =
> orb.string_to_object("corbaloc::192.168.3.230:40000/calc");
>
> /*org.omg.CORBA.Object object =
orb.resolve_initial_references(
> "NameService" );
> NamingContext context = NamingContextHelper.narrow(
object );*/
>
> Calculator c = CalculatorHelper.narrow(obj);
>
> System.out.println("Initialize ready.....");
>
> System.out.println("2 + 2 = " + c.add((double)2,
(double)2));
> System.out.println("2 * 2 = " + c.mul((double)2,
(double)2));
> System.out.println("2 / 2 = " + c.div((double)2,
(double)2));
> System.out.println("2 - 2 = " + c.sub((double)2,
(double)2));
>
> }
> catch (Exception e)
> {
> e.printStackTrace();
> }
> orb.shutdown(false);
> }
> }
>
> I run the server (in the CXF standalone mode):
>
> public class ComPikeelectronicCalcCalculatorServer{
>
> protected ComPikeelectronicCalcCalculatorServer() throws Exception {
> System.out.println("Starting Server");
> Object implementor = new ComPikeelectronicCalcCalculatorImpl();
> String address = "corbaloc::192.168.3.230:40000/calc";
> Endpoint.publish(address, implementor);
> }
>
> public static void main(String args[]) throws Exception {
> new ComPikeelectronicCalcCalculatorServer();
> System.out.println("Server ready...");
>
> Thread.sleep(60 * 60 * 1000);
> System.out.println("Server exitting");
> System.exit(0);
> }
> }
>
> And I run the client. Its giving me this result:
>
> org.omg.CORBA.BAD_PARAM: vmcid: 0x0 minor code: 0 completed: No
> at com.pikeelectronic.calc.CORBAClient.CalculatorHelper.narrow(
CalculatorHelper.java:60)
> at com.pikeelectronic.calc.CORBAClient.Client.main(Client.java
:23)
>
> Whats wrong? Did I miss something?
>
> --
> Lukas Zapletal
> http://lukas.zapletalovi.com
>
--
Lukas Zapletal
http://lukas.zapletalovi.com
