[TAVERNA-117] WSDL activity cannot cope with recursive type definitions

• Type: Bug
• Status: To Do
• Priority: Blocker
• Resolution: Unresolved
• Component/s: Taverna Common Activities
• Labels: wsdl
• Assignee: Unassigned
• Reporter: Stian Soiland-Reyes
• Created: 14/Sep/10 11:11
• Updated: 28/Apr/15 11:43

Description

Anja Le Blanc reports:

Dear Taverna-Team,

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

Unknown macro: {http}

OPTION results in a loop.

It is true that there is a loop structure, but nevertheless I believe it
is a valid definition.
Our temporary solution to this problem is to define a Taverna-friendly
wsdl which returns VOTable 'xs:any'.

Is there any chance that Taverna will be able to parse wsdl files with
loop structures in the future? Or do you have any other suggestion to
solve that problem?

I know that many other tools have problems with these kinds of loop
structures as well.

Best regards,
Anja

Anja reports:

VOTable version 1.2 has a better chance to work (not quite as nasty). A URL for a test service with that version is
http://msslxw.mssl.ucl.ac.uk:8080/helio-ics-votable/HelioServiceVotable2?wsdl

Issue Links

• relates to: TAVERNA-437 Document issue with referencing w3c schemas