[Tdwg-guid] Jena examples?
peter.hollas at thomson.com
peter.hollas at thomson.com
Mon Sep 25 17:02:30 CEST 2006
Hi Everyone,
Does anyone have/or know of any good examples of using Jena to output
RDF metadata with non-typical namespaces such as TCS/RDF?
Currently I have the following code for my metadata method(I know it's
wrong!).
String TN_NS = "http://tdwg.org/2006/03/12/TaxonNames/";
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
Model model = ModelFactory.createDefaultModel();
Resource res = model.createResource("http://test");
res.addProperty(model.createProperty(TN_NS,"testProperty"),"test");
model.write(byteStream, "RDF/XML-ABBREV");
return new MetadataResponse(new
ByteArrayInputStream(byteStream.toByteArray()),null,MetadataResponse.RDF
_FORMAT);
...which gives me.
<rdf:RDF
xmlns:j.0="http://tdwg.org/2006/03/12/TaxonNames/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<rdf:Description rdf:about="http://test">
<j.0:testProperty >test</j.0:testProperty>
</rdf:Description>
</rdf:RDF>
...whereas I could really do with something along the lines of the IPNI
metadata.
<rdf:RDF xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:dcterms="http://purl.org/dc/terms/"
xmlns:tn="http://tdwg.org/2006/03/12/TaxonNames/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<!-- example family (has an unlinked typifying name with
non-standard format data)-->
<tn:TaxonName
rdf:about="urn:lsid:ipni.org:names:30000959-2:1.1.2.1">
<tn:nomenclaturalCode rdf:resource="&tn;#botanical" />
<dc:title>Amaryllidaceae J.St.-Hil.</dc:title>
<dcterms:created>2004-01-20 00:00:00.0</dcterms:created>
<dcterms:modified>2005-06-23
15:45:33.0</dcterms:modified>
<tn:rankString>fam.</tn:rankString>
<tn:nameComplete>Amaryllidaceae</tn:nameComplete>
<tn:uninomial>Amaryllidaceae</tn:uninomial>
<tn:authorship>J.St.-Hil.</tn:authorship>
<tn:publishedIn>Expos. Fam. Nat. 1: 134. 1805 [Feb-Apr
1805]</tn:publishedIn>
<tn:year>1805</tn:year>
<tn:typifiedBy>
<tn:NomenclaturalType>
<dc:title>Amaryllis Linnaeus, nom.
cons.</dc:title>
</tn:NomenclaturalType>
</tn:typifiedBy>
</tn:TaxonName>
I think the main problem I have is creating resources that aren't
defined as vocabularies within Jena already. I can't seem to find a way
to create that <tn:TaxonName root resource element.
I'm starting to think that just outputting vanilla text could be the
best option here, or am I barking up the wrong tree?
Many thanks, Peter.
Peter Hollas MSc BSc(hons) (Peter.Hollas at thomson.com)
Software Engineer /Systems Administrator
Thomson Zoological
Innovation Centre
York Science Park
Heslington
York
YO10 5DG
Tel: 01904-435113
Fax: 01904-435114
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