Tony, have you tried dropping the -ABBREV and simply using RDF/XML?
Martynas graphityhq.com On Mon, Nov 17, 2014 at 3:26 PM, Hammond, Tony <[email protected]> wrote: > Hi: > > I've got another couple questions about RDF/XML-ABBREV format. > > When using the RDF/XML-ABBREV serializer to output a pretty-printed graph on > our subject taxonomy but we get object nodes expanded inline on their first > mention. See example output below [1] where I've shown only the URI > references for convenience and suppressed the literal properties. > > This makes for a very uneven XML. (I know that the RDF is fine though. But we > want some regular XML.) > > Also, and much more importantly, if we add in skos:narrower links this then > creates some kind of pathological behaviour and the serialization then takes > some **90 mins** or more instead of seconds or less. (The graph size is > about 90,000 triples with ~3,000 subjects.) > > We wanted to know if there was any way to suppress node expansion in the Jena > RDF/XML-ABBREV output as we'd really like to use Java for portability in our > build workflows. > > We tried various "blockRules" property combinations to control the RDF/XML > output but to no avail - see Scala code here. > > == > val out = new FileOutputStream(file) > try { > // model.write(out, format ) > > val writer = model.getWriter(format); > if (format.equals("RDF/XML-ABBREV")) { > writer.setProperty("blockRules", "propertyAttr"); > } > writer.write(model, out, null); > } finally { > out.close() > } > == > > However, if we output the same graph in TURTLE and then use an external tool > - the Redland rapper utility which also supports RDF/XML-ABBREV - we get the > very regular (and decidedly pretty) flat RDF/XML output as shown in [2]. > > Is there any way we can control this expansion better in Jena or do we need > to use an external tool like rapper? > > The basic RDF/XML output from Jena is not what we need. We just need a > better, more regular, RDF/XML-ABBREV such as the rapper output. > > Thanks, > > Tony > > [1] > <npg:Subject rdf:about="http://ns.nature.com/subjects/periodontitis";> > <skos:broader> > <npg:Subject rdf:about="http://ns.nature.com/subjects/periodontics";> > <skos:broader> > <npg:Subject rdf:about="http://ns.nature.com/subjects/dentistry";> > <skos:broader> > <npg:Subject > rdf:about="http://ns.nature.com/subjects/health-care";> > <skos:related> > <npg:Subject > rdf:about="http://ns.nature.com/subjects/health-services";> > <skos:broader > rdf:resource="http://ns.nature.com/subjects/health-care"/> > </npg:Subject> > </skos:related> > <skos:related> > </npg:Subject> > </skos:related> > </npg:Subject> > </skos:broader> > </npg:Subject> > </skos:broader> > </npg:Subject> > </skos:broader> > <skos:broader> > <npg:Subject rdf:about="http://ns.nature.com/subjects/oral-diseases";> > <skos:broader> > <skos:broader > rdf:resource="http://ns.nature.com/subjects/health-sciences"/> > </npg:Subject> > </skos:broader> > </npg:Subject> > </skos:broader> > </npg:Subject> > > [2] > <npg:Subject rdf:about="http://ns.nature.com/subjects/periodontitis";> > <skos:broader rdf:resource="http://ns.nature.com/subjects/oral-diseases"/> > <skos:broader rdf:resource="http://ns.nature.com/subjects/periodontics"/> > </npg:Subject> > <npg:Subject rdf:about="http://ns.nature.com/subjects/oral-diseases";> > ... > </npg:Subject> > <npg:Subject rdf:about="http://ns.nature.com/subjects/periodontics";> > ... > </npg:Subject> > > ******************************************************************************** > DISCLAIMER: This e-mail is confidential and should not be used by anyone who > is > not the original intended recipient. If you have received this e-mail in error > please inform the sender and delete it from your mailbox or any other storage > mechanism. Neither Macmillan Publishers Limited nor any of its agents accept > liability for any statements made which are clearly the sender's own and not > expressly made on behalf of Macmillan Publishers Limited or one of its agents. > Please note that neither Macmillan Publishers Limited nor any of its agents > accept any responsibility for viruses that may be contained in this e-mail or > its attachments and it is your responsibility to scan the e-mail and > attachments (if any). No contracts may be concluded on behalf of Macmillan > Publishers Limited or its agents by means of e-mail communication. Macmillan > Publishers Limited Registered in England and Wales with registered number > 785998 > Registered Office Brunel Road, Houndmills, Basingstoke RG21 6XS > ********************************************************************************
