[PyWrapper-devel] Valid response model

[Roger H. <ro...@td...>]

Hi All,

I am looking at what TAPIR output models I could use with PyWrapper.  
I have developed XML Schemas that will help produce valid RDF  
instance data for a simple OWL ontology. Here is an example:

http://rs.tdwg.org/ontology/voc/xsd/TaxonName/schema.xsd

If you open this link in OxygenXML or Spy you can expand all the  
nodes and create instance documents that look like valid RDF. Here is  
an example instance document:

http://rs.tdwg.org/ontology/voc/xsd/TaxonName/template.xml

So the plan would be to use the schema above (or something similar)  
as the structure in an output model so that a TAPIR response could be  
a valid semantic web document and a LSID metadata response. A  
complete LSID authority would need very little code on top of this.

The downside is that these schemas are complex because of the number  
of imports required to support the different namespaces involved.

Anyhow. The first step was to check that PyWrapper would parse  
schemas like the one above so I did this:

http://localhost:8080/pywrapper/pywrapper?op=schema&location=http:// 
rs.tdwg.org/ontology/voc/xsd/TaxonName/schema.xsd

on my local machine and got

"The models response structure is invalid: Global element reference  
'http://rs.tdwg.org/ontology/voc/TaxonName#/rdf:about' missing"

I am not sure why I get this as OxygenXML doesn't have a problem with  
expanding the links and validating the rdf:about attribute so I  
*think* the schema is OK. The parser is handling the import of  
TaxonName.xsd OK. Is it a problem with attributes? Is it a bug or a  
known limitation or an error in my schema?

The are also problems with the group element but I can always work  
round this by just repeating the element.

Any ideas on the rdf:about problem would be most welcome.

Many thanks,

Roger





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   Roger Hyam <ro...@td...>
   Biodiversity Information Standards
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