Loading .owl files in marklogic

Question

Is it possible to load .owl files using mlcp? I tried with -input_file_type rdf but it gives error as below:

bin/mlcp.sh import -host localhost -port 9010 -username uname -password pwd -mode local -input_file_path /home/user/semantics/data -input_file_type rdf -input_file_pattern '.*.owl'

FATAL contentpump.RDFReader: dbpedia1.owl: Element or attribute do not match QName production: QName::=(NCName':')?NCName. FATAL contentpump.RDFReader: dbpedia2.owl: Element or attribute do not match QName production: QName::=(NCName':')?NCName.

What am I missing here ?

It looks like perhaps it's expecting the RDF/XML serialization of the RDF mapping of an OWL ontology when it sees a .owl file. What happens if you just change the file extension to `.ttl` or `.n3`? — Joshua Taylor, Dec 04 '14 at 16:50

score 3 · Answer 1 · answered Dec 04 '14 at 13:40

3

MarkLogic documentation lists the supported triples file formats:

.rdf
.ttl
.json
.n3
.nt
.nq
.trig

Maybe you convert your .owl file to one of those formats, at which point you could use MLCP to load it. I tried plugging your example into a format converter, but that didn't work. Perhaps it's because we only have a snippet here.

answered Dec 04 '14 at 13:40

Dave Cassel

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It looks like the snippet it Turtle/N3, but pasting it into a comment without code ticks means that the URIs are rendered as links without the `http://`, so they won't be legal URIs. The converter might well complain about that (or just about malformed Turtle/N3, since it's a snippet out of context). – Joshua Taylor Dec 04 '14 at 16:50

score 1 · Answer 2 · answered Dec 05 '14 at 05:40

MarkLogic should be able to process .owl files, but I think Joshua is right that MarkLogic is expecting .owl files to contain RDF/XML. You can also see that from the list of Mimetypes in the Admin interface. It lists the .owl extension as 'application/owl+xml', and RDF/XML seems to be the more common serialization of OWL.

Might just be that if you rename the file to .nt that it works..

HTH!

Loading .owl files in marklogic

2 Answers2