Re: web service problem (and configuration)

[Simon Nash <na...@hursley.ibm.com>]

I don't think you can pass or return an interface type across
the Web Service binding, only a class type.

This is a rather nasty limitation.  I believe there is some deep
JAXB magic ("factory" annotations) that could work around this
limitation, but I haven't got far enough into this to know how
to use it or whether it currently works in Tuscany.

   Simon

Mariano Kohan wrote:

> hello,
> 
> this is an example that shows the problem.
> listSalePointCodesOA and listSalePointCodesIA return an array and works
> well, but listSalePointCodes return a List and have the commented
> problems.They are defined in.Services and implemented in
> ServicesImplementation.
> Runner is the class that start the application.
> The web services are published in http://localhost:8887/Services?wsdl.
> 
> thanks,
> Mariano
> 
> Source classes:
> 
> package application.services.interfaces;
> 
> import java.rmi.Remote;
> import java.rmi.RemoteException;
> import java.util.List;
> 
> import org.osoa.sca.annotations.Remotable;
> 
> 
> /**
>  * @author Mariano Kohan
>  * @version 1.0
>  *
>  */
> @Remotable
> public interface Services
>     extends Remote
> {
> 
>     //prueba de retorno de un listado con tipos basicos
>     public List listSalePointCodes() throws RemoteException, Exception;
>     //se prueba retornando un arreglo de objetos
>     public Object[] listSalePointCodesOA() throws RemoteException,
> Exception;
>     //se prueba retornando un arreglo de objetos basicos
>     public Integer[] listSalePointCodesIA() throws RemoteException,
> Exception;
> 
> }
> 
> import application.services.interfaces.Services;
> 
> //@Service(Services.class)
> public class ServicesImplementation
>     implements Services
> {
> 
>     public ServicesImplementation()
>     throws RemoteException
>     {
>     }
> 
>     public List listSalePointCodes() throws RemoteException, Exception {
>         //shows only the first and last elements
> //        List codes = new LinkedList();
>         //shows no elements
>         List codes = new ArrayList();
>         codes.add(new Integer(1));
>         codes.add(new Integer(2));
>         codes.add(new Integer(14));
>         codes.add(new Integer(61));
>         codes.add(new Integer(1));
>         codes.add(new Integer(8));
>         codes.add(new Integer(33));
>         return codes;
>     }
> 
>     public Object[] listSalePointCodesOA() throws RemoteException, Exception
> {
>         List codes = this.listSalePointCodes();
>         return codes.toArray();
>     }
> 
>     public Integer[] listSalePointCodesIA() throws RemoteException,
> Exception {
>         List codes = this.listSalePointCodes();
>         Integer[] codesArray = new Integer[codes.size()];
>         int i = 0;
>         for (Iterator iterator = codes.iterator(); iterator.hasNext();) {
>             Integer code = (Integer) iterator.next();
>             codesArray[i++] = code;
>         }
>         return codesArray;
>     }
> 
> }
> 
> package application.server;
> 
> import org.apache.tuscany.sca.host.embedded.SCADomain;
> 
> public class Runner {
> 
>     public Runner(){
> 
>     }
> 
>     /**
>      * inicializacion del dominio SCA
>      */
>     public void initialize(String xmlFileNameString)
>            throws Exception
>      {
> 
>         System.out.println("Starting of the SCA Application exposed as RMI
> and Web Services ...");
>         SCADomain scaDomain = SCADomain.newInstance(xmlFileNameString);
>         System.out.println("... Press Enter to Exit...");
>         System.in.read();
>         scaDomain.close();
>         System.out.println("Exited...");
>         System.exit(0);
> 
>      }
> 
>     public static void main(String[] args)
>     throws Exception
>     {
>         Runner applicationServicesRunner = new Runner();
>         applicationServicesRunner.initialize(args[0]);
>     }
> 
> }
> 
> Configuration Files:
> 
> -composite
> 
> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>     xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>     targetNamespace="http://application"
>     name="application">
> 
>     <component name="ApplicationServiceComponent">
>         <implementation.spring location="test.app\src\resource"/>
>         <service name="Services" type="
> application.services.interfaces.Services"
>             target="SERVICES">
>               <binding.ws uri="http://localhost:8887/Services"/>
>            </service>
> 
>     </component>
> 
> -spring beans
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <beans xmlns="http://www.springframework.org/schema/beans"
>        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>        xmlns:sca="http://www.springframework.org/schema/sca"
>        xsi:schemaLocation="
>        http://www.springframework.org/schema/beans
> http://www.springframework.org/schema/beans/spring-beans.xsd
>        http://www.springframework.org/schema/sca
> http://www.springframework.org/schema/sca/spring-sca.xsd">
> 
>     <sca:service name="Services"
>         type="application.services.interfaces.Services" target="SERVICES"/>
> 
>     <!-- services -->
>     <bean id="SERVICES"
>         class="application.services.implementation.ServicesImplementation">
>     </bean>
> 
> </beans>
> 
> 2007/12/20, Simon Laws <si...@googlemail.com>:
> 
>>On Dec 20, 2007 5:44 PM, Mariano Kohan <ma...@gmail.com> wrote:
>>
>>
>>>hello,
>>>
>>>I have a problem when I expose a service with ws binding.
>>>When I want to return a collection of elements, if I use a List type the
>>>web
>>>service invocation return only 2 elements of the list (when I use
>>>LinkedList) or an empty collection (when  I use Array).
>>>I suppose the problem is in the implementation of the web service with
>>>axis2. It's that right? How can I change the configuration of axis to
>>>return
>>>all the elements of the List?
>>>
>>>thanks,
>>>Mariano
>>>
>>
>>Hi Mariano
>>
>>Can you provide a example of this problem. If you can't provide the whole
>>thing then the service interface that you are using would be good (or a
>>sample interface that has the same types)? It sounds like it could be
>>something wrong with either the way interface definitions are being
>>generated or in the way that data is transformed and marshalled across the
>>wire. The easiest thing is if you can provide an example that doesn't work
>>that can be debugged.
>>
>>Thanks
>>
>>Simon
>>
>>Simon
>>
> 
> 



---------------------------------------------------------------------
To unsubscribe, e-mail: tuscany-user-unsubscribe@ws.apache.org
For additional commands, e-mail: tuscany-user-help@ws.apache.org