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Posted to dev@stanbol.apache.org by Kuba The Greatest <ko...@gmail.com> on 2013/09/13 10:11:11 UTC
Questions about SPARQL endpoint
Hi,
I just came across Apache Stanbol and it seems to me it can be a great help
in my recent project but I would like to ask you guys for some
clarifications. After reading docs and playing around with running server I
have following questions:
1) Is there any non programmatical way (e.g. REST API) to register a new
TripleCollection for SPARQL endpoint?
2) Can I register ontologies stored in OntoNet as TripleCollections so I
could run some SPARQL queries on them? Is there any other way I can run
SPARQL queries on ontologies stored in OntoNet ?
3) Does SPARQL endpoint make use of reasoners, especially HermiT ? If no,
would it be possible to add such a feature ? By adding I mean that I would
have to connect some modules either by configuring them or programming. I
know that HermiT does not support SPARQL out of the box that's why I am
even more interested if I can get such a feature using Stanbol.
Best regards,
Kuba Stepniak
Re: Questions about SPARQL endpoint
Posted by "ajs6f@virginia.edu" <aj...@virginia.edu>.
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I was more just curious about how that service gets deployed into the web tree. I didn't realize it was as straightforward as a JAX-RS resource. Thanks!
- ---
A. Soroka
The University of Virginia Library
On Sep 17, 2013, at 12:16 PM, Reto Bachmann-Gmür wrote:
> No, the path is hardcoded in the jax-rs annotation. By tthe design of
> JAX-RS It would not be trivial to make this configurable. But why would you
> want two Sparql endpoints?
>
> Reto
>
>
> On Tue, Sep 17, 2013 at 2:19 PM, ajs6f@virginia.edu <aj...@virginia.edu>wrote:
>
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>> Hash: SHA1
>>
>> This is a thread currently running on the Stanbol mailing list, in which
>> it is pointed out that the Clerezza SPARQL endpoint is available at
>> "/sparql", which clashes with Stanbol's SPARQL endpoint. I was wondering if
>> there is a way to adjust/redeploy that Clerezza endpoint? Is it
>> OSGi-config-able?
>>
>> - ---
>> A. Soroka
>> The University of Virginia Library
>>
>> On Sep 16, 2013, at 3:20 AM, Reto Bachmann-Gmür wrote:
>>
>>> Hi Kuba,
>>>
>>> On Fri, Sep 13, 2013 at 10:11 AM, Kuba The Greatest
>>>> <ko...@gmail.com> wrote:
>>>>> 1) Is there any non programmatical way (e.g. REST API) to register a
>> new
>>>>> TripleCollection for SPARQL endpoint?
>>>>
>>>> Not in Apache Stanbol. But you should be able to do this by directly
>>>> using Apache Clerezza. Maybe @Reto could add here some information on
>>>> how to enable the Clerezza SPARQL endpoint when running in Apache
>>>> Stanbol.
>>>>
>>>
>>> With the clerezza sparql endpoint you don't need to register triple
>>> collections to the endpoint but any avaialable triple collection can be
>>> queried.(But having triple collections with invalid URIs as names causes
>>> problems).
>>>
>>> As the clerezza endpoint also listens at the /sparql path the stanbol one
>>> has to be removed before installing the clerezza one. I'm planing to
>> create
>>> a partialbundlelist/feature with the required bundles soon. In between
>> you
>>> might have a look at
>>>
>> https://github.com/fusepool/fusepool-bundlelist/blob/master/src/main/bundles/list.xmlwhich
>>> contains the required bundles.
>>>
>>> Feel free to ask if you encounter problems.
>>>
>>>
>>>>
>>>>> 2) Can I register ontologies stored in OntoNet as TripleCollections so
>> I
>>>>> could run some SPARQL queries on them? Is there any other way I can run
>>>>> SPARQL queries on ontologies stored in OntoNet ?
>>>>
>>>> If I remember correctly the OntologyManager does store ontologies
>>>> using Clerezza as prescience. If this is the case those data are
>>>> queryable via the Clerezza SPARQL endpoint. Stanbol does not register
>>>> them to its own SPARQL endpoint.
>>>>
>>>>> 3) Does SPARQL endpoint make use of reasoners, especially HermiT ? If
>> no,
>>>>> would it be possible to add such a feature ? By adding I mean that I
>>>> would
>>>>> have to connect some modules either by configuring them or
>> programming. I
>>>>> know that HermiT does not support SPARQL out of the box that's why I am
>>>>> even more interested if I can get such a feature using Stanbol.
>>>>
>>>> Sorry I am not the right person to answer this question.
>>>>
>>>
>>> I'm not the best person either. But from the clerezza side the best
>>> approach might be to register a virtual triple collection which exposes
>> the
>>> base triples + HermiT infered triples with TcManager. It will then be
>>> available via the sparql endpoint.
>>>
>>>
>>> Cheers,
>>> Reto
>>
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Re: Questions about SPARQL endpoint
Posted by Reto Bachmann-Gmür <re...@apache.org>.
No, the path is hardcoded in the jax-rs annotation. By tthe design of
JAX-RS It would not be trivial to make this configurable. But why would you
want two Sparql endpoints?
Reto
On Tue, Sep 17, 2013 at 2:19 PM, ajs6f@virginia.edu <aj...@virginia.edu>wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> This is a thread currently running on the Stanbol mailing list, in which
> it is pointed out that the Clerezza SPARQL endpoint is available at
> "/sparql", which clashes with Stanbol's SPARQL endpoint. I was wondering if
> there is a way to adjust/redeploy that Clerezza endpoint? Is it
> OSGi-config-able?
>
> - ---
> A. Soroka
> The University of Virginia Library
>
> On Sep 16, 2013, at 3:20 AM, Reto Bachmann-Gmür wrote:
>
> > Hi Kuba,
> >
> > On Fri, Sep 13, 2013 at 10:11 AM, Kuba The Greatest
> >> <ko...@gmail.com> wrote:
> >>> 1) Is there any non programmatical way (e.g. REST API) to register a
> new
> >>> TripleCollection for SPARQL endpoint?
> >>
> >> Not in Apache Stanbol. But you should be able to do this by directly
> >> using Apache Clerezza. Maybe @Reto could add here some information on
> >> how to enable the Clerezza SPARQL endpoint when running in Apache
> >> Stanbol.
> >>
> >
> > With the clerezza sparql endpoint you don't need to register triple
> > collections to the endpoint but any avaialable triple collection can be
> > queried.(But having triple collections with invalid URIs as names causes
> > problems).
> >
> > As the clerezza endpoint also listens at the /sparql path the stanbol one
> > has to be removed before installing the clerezza one. I'm planing to
> create
> > a partialbundlelist/feature with the required bundles soon. In between
> you
> > might have a look at
> >
> https://github.com/fusepool/fusepool-bundlelist/blob/master/src/main/bundles/list.xmlwhich
> > contains the required bundles.
> >
> > Feel free to ask if you encounter problems.
> >
> >
> >>
> >>> 2) Can I register ontologies stored in OntoNet as TripleCollections so
> I
> >>> could run some SPARQL queries on them? Is there any other way I can run
> >>> SPARQL queries on ontologies stored in OntoNet ?
> >>
> >> If I remember correctly the OntologyManager does store ontologies
> >> using Clerezza as prescience. If this is the case those data are
> >> queryable via the Clerezza SPARQL endpoint. Stanbol does not register
> >> them to its own SPARQL endpoint.
> >>
> >>> 3) Does SPARQL endpoint make use of reasoners, especially HermiT ? If
> no,
> >>> would it be possible to add such a feature ? By adding I mean that I
> >> would
> >>> have to connect some modules either by configuring them or
> programming. I
> >>> know that HermiT does not support SPARQL out of the box that's why I am
> >>> even more interested if I can get such a feature using Stanbol.
> >>
> >> Sorry I am not the right person to answer this question.
> >>
> >
> > I'm not the best person either. But from the clerezza side the best
> > approach might be to register a virtual triple collection which exposes
> the
> > base triples + HermiT infered triples with TcManager. It will then be
> > available via the sparql endpoint.
> >
> >
> > Cheers,
> > Reto
>
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Re: Questions about SPARQL endpoint
Posted by "ajs6f@virginia.edu" <aj...@virginia.edu>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
This is a thread currently running on the Stanbol mailing list, in which it is pointed out that the Clerezza SPARQL endpoint is available at "/sparql", which clashes with Stanbol's SPARQL endpoint. I was wondering if there is a way to adjust/redeploy that Clerezza endpoint? Is it OSGi-config-able?
- ---
A. Soroka
The University of Virginia Library
On Sep 16, 2013, at 3:20 AM, Reto Bachmann-Gmür wrote:
> Hi Kuba,
>
> On Fri, Sep 13, 2013 at 10:11 AM, Kuba The Greatest
>> <ko...@gmail.com> wrote:
>>> 1) Is there any non programmatical way (e.g. REST API) to register a new
>>> TripleCollection for SPARQL endpoint?
>>
>> Not in Apache Stanbol. But you should be able to do this by directly
>> using Apache Clerezza. Maybe @Reto could add here some information on
>> how to enable the Clerezza SPARQL endpoint when running in Apache
>> Stanbol.
>>
>
> With the clerezza sparql endpoint you don't need to register triple
> collections to the endpoint but any avaialable triple collection can be
> queried.(But having triple collections with invalid URIs as names causes
> problems).
>
> As the clerezza endpoint also listens at the /sparql path the stanbol one
> has to be removed before installing the clerezza one. I'm planing to create
> a partialbundlelist/feature with the required bundles soon. In between you
> might have a look at
> https://github.com/fusepool/fusepool-bundlelist/blob/master/src/main/bundles/list.xmlwhich
> contains the required bundles.
>
> Feel free to ask if you encounter problems.
>
>
>>
>>> 2) Can I register ontologies stored in OntoNet as TripleCollections so I
>>> could run some SPARQL queries on them? Is there any other way I can run
>>> SPARQL queries on ontologies stored in OntoNet ?
>>
>> If I remember correctly the OntologyManager does store ontologies
>> using Clerezza as prescience. If this is the case those data are
>> queryable via the Clerezza SPARQL endpoint. Stanbol does not register
>> them to its own SPARQL endpoint.
>>
>>> 3) Does SPARQL endpoint make use of reasoners, especially HermiT ? If no,
>>> would it be possible to add such a feature ? By adding I mean that I
>> would
>>> have to connect some modules either by configuring them or programming. I
>>> know that HermiT does not support SPARQL out of the box that's why I am
>>> even more interested if I can get such a feature using Stanbol.
>>
>> Sorry I am not the right person to answer this question.
>>
>
> I'm not the best person either. But from the clerezza side the best
> approach might be to register a virtual triple collection which exposes the
> base triples + HermiT infered triples with TcManager. It will then be
> available via the sparql endpoint.
>
>
> Cheers,
> Reto
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Re: Questions about SPARQL endpoint
Posted by Reto Bachmann-Gmür <re...@apache.org>.
Hi Kuba,
On Fri, Sep 13, 2013 at 10:11 AM, Kuba The Greatest
> <ko...@gmail.com> wrote:
> > 1) Is there any non programmatical way (e.g. REST API) to register a new
> > TripleCollection for SPARQL endpoint?
>
> Not in Apache Stanbol. But you should be able to do this by directly
> using Apache Clerezza. Maybe @Reto could add here some information on
> how to enable the Clerezza SPARQL endpoint when running in Apache
> Stanbol.
>
With the clerezza sparql endpoint you don't need to register triple
collections to the endpoint but any avaialable triple collection can be
queried.(But having triple collections with invalid URIs as names causes
problems).
As the clerezza endpoint also listens at the /sparql path the stanbol one
has to be removed before installing the clerezza one. I'm planing to create
a partialbundlelist/feature with the required bundles soon. In between you
might have a look at
https://github.com/fusepool/fusepool-bundlelist/blob/master/src/main/bundles/list.xmlwhich
contains the required bundles.
Feel free to ask if you encounter problems.
>
> > 2) Can I register ontologies stored in OntoNet as TripleCollections so I
> > could run some SPARQL queries on them? Is there any other way I can run
> > SPARQL queries on ontologies stored in OntoNet ?
>
> If I remember correctly the OntologyManager does store ontologies
> using Clerezza as prescience. If this is the case those data are
> queryable via the Clerezza SPARQL endpoint. Stanbol does not register
> them to its own SPARQL endpoint.
>
> > 3) Does SPARQL endpoint make use of reasoners, especially HermiT ? If no,
> > would it be possible to add such a feature ? By adding I mean that I
> would
> > have to connect some modules either by configuring them or programming. I
> > know that HermiT does not support SPARQL out of the box that's why I am
> > even more interested if I can get such a feature using Stanbol.
>
> Sorry I am not the right person to answer this question.
>
I'm not the best person either. But from the clerezza side the best
approach might be to register a virtual triple collection which exposes the
base triples + HermiT infered triples with TcManager. It will then be
available via the sparql endpoint.
Cheers,
Reto
Re: Questions about SPARQL endpoint
Posted by Rupert Westenthaler <ru...@gmail.com>.
Hi Kuba
@Reto: see question (1)
On Fri, Sep 13, 2013 at 10:11 AM, Kuba The Greatest
<ko...@gmail.com> wrote:
> 1) Is there any non programmatical way (e.g. REST API) to register a new
> TripleCollection for SPARQL endpoint?
Not in Apache Stanbol. But you should be able to do this by directly
using Apache Clerezza. Maybe @Reto could add here some information on
how to enable the Clerezza SPARQL endpoint when running in Apache
Stanbol.
> 2) Can I register ontologies stored in OntoNet as TripleCollections so I
> could run some SPARQL queries on them? Is there any other way I can run
> SPARQL queries on ontologies stored in OntoNet ?
If I remember correctly the OntologyManager does store ontologies
using Clerezza as prescience. If this is the case those data are
queryable via the Clerezza SPARQL endpoint. Stanbol does not register
them to its own SPARQL endpoint.
> 3) Does SPARQL endpoint make use of reasoners, especially HermiT ? If no,
> would it be possible to add such a feature ? By adding I mean that I would
> have to connect some modules either by configuring them or programming. I
> know that HermiT does not support SPARQL out of the box that's why I am
> even more interested if I can get such a feature using Stanbol.
Sorry I am not the right person to answer this question.
best
Rupert
>
> Best regards,
> Kuba Stepniak
--
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| Bodenlehenstraße 11 ++43-699-11108907
| A-5500 Bischofshofen