Hi Andy,
This is Jena 3.6.0.
Lewis

On 2018/03/07 10:59:42, Andy Seaborne <a...@apache.org> wrote: 
> Lewis - which version? Do yo have all the apache-jena-libs jars on the 
> classpath?  RIOT rewirers Jena model reading.
> 
> Also, there was an issue around redirect and remapping but it's fixed.
> 
>       Andy
> 
> On 07/03/18 08:57, Dave Reynolds wrote:
> > I can't tell from the trace whether you are mapping the import URLs to 
> > local files or are loading directly from the URL. If loading from local 
> > files then you really need suffixes on those. I'll assume you are 
> > loading from the URL ...
> > 
> > OntModels use a somewhat older stack of tools (FileManager) which 
> > guesses the language based on the suffix, with a default of RDF/XML, and 
> > then relies on content negotiation to deliver the guessed format. Since 
> > your resources don't support conneg and don't support RDF/XML (the 
> > official default) that's not going to work.
> > 
> > One option might be to create a subclass of FileManager which overrides 
> > readModelWorker to either load the data via the newer RDFDataMgr which 
> > has more sophisticated conneg support, or to change the default syntax 
> > to Turtle. Then install that FileManager in the OntDocumentManager you 
> > use for your loading.
> > 
> > Dave
> > 
> > 
> > On 07/03/18 04:28, lewis john mcgibbney wrote:
> >> Hi Folks,
> >>
> >> Over on the SWEET ontology suite [0] we recently changed out canonical
> >> serialization to TTL. Additionally however, we removed all file suffixes
> >> from the resources themselves, therefore although the following resource
> >> [1] is serialized as TTL, you would never know unless you looked at it or
> >> peeked into the server response.
> >>
> >> I am experiencing issues when I attempt to load the SWEET 'master' file
> >> [2], which essentially produces a graph by importing every file within 
> >> the
> >> ontology suite. The code I use to do this is as follows.
> >>
> >> ((OntModel) m).read(url, null, lang); //Where lang is the string "TTL" or
> >> "TURTLE" depending on previous logic.
> >>
> >> The stack trace I get is as follows [3]
> >>
> >> As you can see it loads the sweetAll file correctly but chokes on the
> >> imported resource http://sweetontology.net/realmSoil, which is also a TTL
> >> serialization but with no file suffix. The stack trace indicates that an
> >> attempt is being made to parse the resource as RDF/XML... which in this
> >> case is incorrect.
> >>
> >> Any hints on how to override/define this behaviour?
> >>
> >> Another related question, the large stack trace I receive from the above
> >> parsing activity seems to also indicate that the OntModel.read logic
> >> randomly processes imports when processing a resource such as [2]. Is 
> >> this
> >> correct?
> >>
> >> Thanks for any hits folks, I appreciate it.
> >> Lewis
> >>
> >> [0] http://sweetontology.net
> >> [1] http://sweetontology.net/reprDataProduct
> >> [2] http://sweetontology.net/sweetAll
> >> [3] https://paste.apache.org/vLt8
> >>
> 

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