Hi Jack,
sorry we cannot give you more advise on how to configure Fuseki here.
Obviously the initialization of the SPIN functions needs to happen
before you can use them. How Fuseki executes such initialization code is
better asked to the Jena mailing list.
Regards,
Holger
On 3/6/15 5:48 AM, Jack Hodges wrote:
Holger,
When I saw this message I went to the console (hadn't thought to look
there before) and saw a warning: "WARN URI
<http://siemens.com/schemas/activity#commonLabelURI> has no registered
function factory", which I am assuming is directly related to your
question. I was not aware that I had to do something special to
register SPIN functions. As you can see, were not in a file named
foo.spin.ttl (but they are now).
I am unclear about where I would make the call you suggest.
Jack
On Wednesday, March 4, 2015 at 3:19:22 PM UTC-8, Holger Knublauch wrote:
Jack,
are you sure the SPIN functions are registered? You need something
like
SPINModuleRegistry.get().registerAll(ontModel, null);
where ontModel is a Jena Model containing the function definitions
(typically stored in .spin.ttl files).
Holger
On 3/5/2015 2:29, Jack Hodges wrote:
Holger,
I finally got jena (and fuseki) to build with the maven pom
additions you provided for the spin library. I checked the
resulting jena-fuseki-1.0.0-server.jar file and the spin modules
are in it. I launched this with 'fuseki-server --update --mem
/ds' and then loaded my models into it. Then I ran the query on
it that works fine in composer. I am inclined to say that the
result I get back is empty but it really looks like:
-------
| res |
=======
| |
-------
which is suggestive that there is a single result but that it isn't in
?res.As before, Fuseki can see my spin functions but it seems like it still
cannot execute them. I am wondering if I did something wrong because I did
follow your instructions to the letter.
Here is the query:
prefix sp:<http://spinrdf.org/sp#> <http://spinrdf.org/sp#>
prefix afn:<http://jena.hpl.hp.com/ARQ/function#>
<http://jena.hpl.hp.com/ARQ/function#>
prefix fn:<http://www.w3.org/2005/xpath-functions#>
<http://www.w3.org/2005/xpath-functions#>
prefix rdfs:<http://www.w3.org/2000/01/rdf-schema#>
<http://www.w3.org/2000/01/rdf-schema#>
prefix quantity:<http://qudt.org/vocab/quantity#>
<http://qudt.org/vocab/quantity#>
prefix skos:<http://www.w3.org/2004/02/skos/core#>
<http://www.w3.org/2004/02/skos/core#>
prefix spin:<http://spinrdf.org/spin#> <http://spinrdf.org/spin#>
prefix act:<http://siemens.com/schemas/activity#>
<http://siemens.com/schemas/activity#>
SELECT ?res WHERE {BIND
(act:commonLabelURI("http://developer.runkeeper.com/healthgraph#Spinning";
<http://developer.runkeeper.com/healthgraph#Spinning>) AS ?res) .}
where 'act:commonLabelURI' is the spin rule.
I 'have' tried using TBL and will address that issue in the next
posting.
Jack
On Thursday, February 26, 2015 at 6:04:15 PM UTC-8, Holger
Knublauch wrote:
Hi Jack,
short answer: You'll need the SPIN API [1] as a plugin to
Fuseki. Fuseki by itself does not know what to do with the
RDF declarations of SPIN functions - they are just triples
for Fuseki.
BTW afn:localname is not just a TopBraid function, but is
originally from Jena. So it works in Fuseki, but anything
from the spif: namespace would not work.
A commercial alternative to Fuseki is the TopBraid Live
platform [2], and this has SPIN and TopBraid SPARQL functions
built in.
HTH
Holger
[1] http://topbraid.org/spin/api/
[2] http://www.topquadrant.com/products/topbraid-live/
<http://www.topquadrant.com/products/topbraid-live/>
On 2/27/2015 11:00, Jack Hodges wrote:
I have exported a bunch of graphs to a .ttl file and then
imported it into fuseki. If I run a query on fuseki to see
if the functions are there - they are. If I run a query on
fuseki to show the spin:body or spin:constraints they show
them as anonymous objects (is that the correct term?). If I
run queries on the classes and properties that my spin
functions are working on I get the right results. But I
cannot get results by executing my spin functions.
So the classes and properties exist, the bindings exist, the
spin functions exist, the prefixes are defined, but the
functions don't execute. Other functions execute, such as
the TopBraid functions (I tested with afn:localname for
example) and they work fine.
By the way, these functions have been tested in TBCME and
work fine. If I take the strings I am using in fuseki and
run them in the SPARQL window of TBCME they also work fine.
I checked the list of models that are being exported with
mine and noted that some are not exported, such as skos. Is
this a problem?
I must be missing something simple here. Any comments?
Jack
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