call n10s.onto.import.fetch doesn't work for indirect ontology

[fan_123]

I am using "call n10s.onto.import.fetch" to import the ontology which I generated from Protege. In that ontology file, I refer to some existing ontology files on the internet, as shown below. 

I found that I can't import this indirect ontology with "call n10s.onto.import.fetch" function, can anybody help me?

[jesus_barrasa]

Hi @fan_123 , thanks for your interest!

The n10s.*.import methods don't follow import links but you can do it with a couple of lines.

All you got to do is do a second pass with the n10s.rdf.stream.* method that returns the triples in your RDF file, extract the subject, predicate, object where the predicate is owl:imports and for use the object as the URL for an n10s.onto.import.fetch request. 

Here's how:

call n10s.rdf.stream.inline('http://your.onto.with.imports',"RDF/XML") yield subject, predicate, object
where predicate = "http://www.w3.org/2002/07/owl#imports"
with object as importedOntoUri
call n10s.onto.import.fetch(importedOntoUri,"RDF/XML") yield terminationStatus, triplesLoaded, extraInfo
return importedOntoUri, terminationStatus, triplesLoaded, extraInfo

 I've tried it with your capabilityModel onto and I get this result:

╒══════════════════════════════════════════════════════════════════════╤═══════════════════╤═══════════════╤═══════════╕
│"importedOntoUri"                                                     │"terminationStatus"│"triplesLoaded"│"extraInfo"│
╞══════════════════════════════════════════════════════════════════════╪═══════════════════╪═══════════════╪═══════════╡
│"https://resourcedescription.rd.tuni.fi/ontology/processTaxonomyModel"│"OK"               │715            │""         │
├──────────────────────────────────────────────────────────────────────┼───────────────────┼───────────────┼───────────┤
│"https://resourcedescription.rd.tuni.fi/ontology/commonConcepts"      │"OK"               │6              │""         │
└──────────────────────────────────────────────────────────────────────┴───────────────────┴───────────────┴───────────┘

Cheers,

JB.

PS: Note there are some HTTP redirection issues in some of the ontologies.  https://resourcedescription.rd.tuni.fi/ontology/capabilityModel gets redirected to http://150.146.207.114/lode/extract?owlapi=true&url=https://resourcedescription.rd.tuni.fi/ontology/... causing a protocol mismatch exception.

[fan_123]

Dear Jesus, thanks a lot! However, when I am using the n10s.rdf.stream.inline function, I met this error

[jesus_barrasa]

The inline procedure takes RDF payload, not the url. The url is for the fetch procedures.

[jesus_barrasa]

Make sure you pass to the n10s methods the url of the raw RDF (https://raw.githubusercontent.com/mf093087/Ontology/main/Ontology_EMS.ttl), not the pretty formated html version (https://github.com/mf093087/Ontology/blob/main/Ontology_EMS.ttl) otherwise the parser will not be getting Turtle, but HTML.