Here an update on our VOTable loop problem. We changed one of our
services
(http://msslxw.mssl.ucl.ac.uk:8080/helio-ics-votable/HelioServiceVotable2?wsdl)
to use VOTable v1.2 which has a modified version of the loop:
<xs:complexType name="Option">
<xs:sequence>
<xs:element name="OPTION" type="Option" minOccurs="0"
maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="name" type="xs:token"/>
<xs:attribute name="value" type="xs:string" use="required"/>
</xs:complexType>
That should be less nasty then before, but still does not work with Taverna.
Unfortunately VOTable is the international standard for exchanging
Heliophysics data, so the HELIO project can't avoid or modify it.
It would be great if we could find a solution to use VOTable in Taverna.
Best regards,
Anja
On 15/07/2010 12:03, Donal K. Fellows wrote:
> On 15/07/2010 10:51, Anja Le Blanc wrote:
>> As you may know Heliophysics is using the VOTable format to exchange
>> data - so do we in HELIO. Our standard wsdl returns therefore structures
>> of the type VOTable, as defined by their standardisation organisation
>> IVOA. Trying to import these web services (e.g.
>> http://msslxw.mssl.ucl.ac.uk:8080/helio-ics/HelioService?wsdl) results
>> in a parsing exception:
>>
>> java.io.IOException: The definition of
>> {http://www.ivoa.net/xml/VOTable/v1.1}OPTION results in a loop.
>
> The offensive section of schema is:
>
> <xs:element name="OPTION">
> <xs:complexType>
> <xs:sequence>
> <xs:element ref="OPTION" minOccurs="0" maxOccurs="unbounded" />
> </xs:sequence>
> <xs:attribute name="name" type="xs:token" />
> <xs:attribute name="valueopt" type="xs:string" use="required" />
> </xs:complexType>
> </xs:element>
>
> It's legal, but very nasty. This is not a usage that e.g. JAXB can
> support (or at least not with java-first tooling); it doesn't like
> things *that* incestuous!
>
> I believe that VOTable 1.2 will work with at least JAXB, or at least I
> can tool something that looks *extremely* similar with minimal effort.
>
> Donal.
>
>
>
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