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#>
prefix afn: <http://jena.hpl.hp.com/ARQ/function#>
prefix fn: <http://www.w3.org/2005/xpath-functions#>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix quantity: <http://qudt.org/vocab/quantity#>
prefix skos: <http://www.w3.org/2004/02/skos/core#>
prefix spin: <http://spinrdf.org/spin#>
prefix act: <http://siemens.com/schemas/activity#>
SELECT ?res WHERE {BIND 
(act:commonLabelURI("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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