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Posted to users@cxf.apache.org by Jay Guidos <ja...@4dark.com> on 2008/09/20 17:09:36 UTC

Consuming web services from .NET containing DataSets

Hi All,

 

I am returning to web service programming after several years of other
tasks.It's kind of rusty but coming back to me!  Anyway I have what
seems to be a fairly well known problem, in that I need to consume a web
service that is giving out .NET un-typed DataSets in a document/literal
service.

 

I tried running wsdl2java -client on a wsdl that had the following type
for an output response:

 

           <xsd:element name="GetBlotterResponse">

                <xsd:complexType>

                    <xsd:sequence>

                        <xsd:element minOccurs="0"
name="GetBlotterResult" nillable="true">

                            <xsd:complexType>

                                <xsd:annotation>

                                    <xsd:appinfo>

                                        <ActualType Name="DataSet"

 
Namespace="http://schemas.datacontract.org/2004/07/System.Data"

 
xmlns="http://schemas.microsoft.com/2003/10/Serialization/"/>

                                    </xsd:appinfo>

                                </xsd:annotation>

                                <xsd:sequence>

                                    <xsd:element ref="xsd:schema"/>

                                    <xsd:any/>

                                </xsd:sequence>

                            </xsd:complexType>

                        </xsd:element>

                    </xsd:sequence>

                </xsd:complexType>

            </xsd:element>

 

The offending line seems to be:

 

 <xsd:element ref="xsd:schema"/>

 

This causes wsdl2java to die with the following error:

 

WSDLToJava Error: Thrown by JAXB : undefined element declaration
'xsd:schema'

 

As others have lamented, the above WSDL is reported as valid by the 3
WSDL validators I have washed it through, but there does not seem to be
anyone who supports this kind of dynamically typed responses except
.NET.  I have tried Glassfish, JWSDP 2.0, Axis 2 and now CFX in both
JAX-RPC and JAX-WS approaches and all are a no-go. I would like to stay
with CFX because your stuff seems to work beautifully with groovy, my
new favourite language.

 

So, since I don't have the luxury of getting this service changed, what
are my options?  Suggestions, anyone?

 

Jay Guidos

Dark Technologies

Re: Consuming web services from .NET containing DataSets

Posted by Daniel Kulp <dk...@apache.org>.
Yea, this seems to be a common issue with JAXB.  :-(

The ONLY workaround I've seen is to copy the wsdl locally and either add an 
import for the schema namespace or to convert the: 

<xsd:element ref="xsd:schema"/>
<xsd:any/>

to:
<xsd:any maxOccurs="2"/>
or similar and then use the local wsdl.

:-(

Dan



On Saturday 20 September 2008 11:09:36 am Jay Guidos wrote:
> Hi All,
>
>
>
> I am returning to web service programming after several years of other
> tasks.It's kind of rusty but coming back to me!  Anyway I have what
> seems to be a fairly well known problem, in that I need to consume a web
> service that is giving out .NET un-typed DataSets in a document/literal
> service.
>
>
>
> I tried running wsdl2java -client on a wsdl that had the following type
> for an output response:
>
>
>
>            <xsd:element name="GetBlotterResponse">
>
>                 <xsd:complexType>
>
>                     <xsd:sequence>
>
>                         <xsd:element minOccurs="0"
> name="GetBlotterResult" nillable="true">
>
>                             <xsd:complexType>
>
>                                 <xsd:annotation>
>
>                                     <xsd:appinfo>
>
>                                         <ActualType Name="DataSet"
>
>
> Namespace="http://schemas.datacontract.org/2004/07/System.Data"
>
>
> xmlns="http://schemas.microsoft.com/2003/10/Serialization/"/>
>
>                                     </xsd:appinfo>
>
>                                 </xsd:annotation>
>
>                                 <xsd:sequence>
>
>                                     <xsd:element ref="xsd:schema"/>
>
>                                     <xsd:any/>
>
>                                 </xsd:sequence>
>
>                             </xsd:complexType>
>
>                         </xsd:element>
>
>                     </xsd:sequence>
>
>                 </xsd:complexType>
>
>             </xsd:element>
>
>
>
> The offending line seems to be:
>
>
>
>  <xsd:element ref="xsd:schema"/>
>
>
>
> This causes wsdl2java to die with the following error:
>
>
>
> WSDLToJava Error: Thrown by JAXB : undefined element declaration
> 'xsd:schema'
>
>
>
> As others have lamented, the above WSDL is reported as valid by the 3
> WSDL validators I have washed it through, but there does not seem to be
> anyone who supports this kind of dynamically typed responses except
> .NET.  I have tried Glassfish, JWSDP 2.0, Axis 2 and now CFX in both
> JAX-RPC and JAX-WS approaches and all are a no-go. I would like to stay
> with CFX because your stuff seems to work beautifully with groovy, my
> new favourite language.
>
>
>
> So, since I don't have the luxury of getting this service changed, what
> are my options?  Suggestions, anyone?
>
>
>
> Jay Guidos
>
> Dark Technologies



-- 
Daniel Kulp
dkulp@apache.org
http://www.dankulp.com/blog