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Posted to dev@marmotta.apache.org by Jayan Vidanapathirana <ja...@cse.mrt.ac.lk> on 2017/03/23 05:49:54 UTC
GSoC 2017 - Port Marmotta to Eclipse RDF4J
Hi all,
I'm Jayan Vidanapathirana, a final year undergraduate from Department of
Computer Science and Engineering, University of Moratuwa. I'm interesting
about this project. Now I'm studying about Marmotta and sesame.
So, I would like to know more details about this project and main knowledge
areas.
--
Best Regards
Jayan Vidanapathirana
Undergraduate (CSE '13 Batch )
Computer Science & Engineering Department
University of Moratuwa.
jcvidanapathirana@gmail.com
[image: https://lk.linkedin.com/in/jayancv]
<https://lk.linkedin.com/in/jayancv>
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>.
Hi,
Really thanks, Sergio and Peter.
I created a draft proposal and I really appreciate your comments to improve
it.
https://docs.google.com/document/d/1bNDxNyZxVaEyQgnockdAr75JyvzVT
VQe3cfMkKhwW9c/edit?usp=sharing
On 28 March 2017 at 03:18, Peter Ansell <an...@gmail.com> wrote:
> Hi Sergio, Jayan,
>
> The NotifyingSailBase functionality is still supported but it was
> labelled as Deprecated when it was renamed to AbstractNotifyingSail.
>
> https://github.com/eclipse/rdf4j/blob/master/core/sail/
> api/src/main/java/org/eclipse/rdf4j/sail/helpers/NotifyingSailBase.java
>
> https://github.com/eclipse/rdf4j/blob/master/core/sail/
> api/src/main/java/org/eclipse/rdf4j/sail/helpers/
> AbstractNotifyingSail.java
>
> Cheers,
>
> Peter
>
> On 27 March 2017 at 22:50, Sergio Fernández <wi...@apache.org> wrote:
> > the KiWi triplestore doesn't rely on RDBMS Sail, but it plugs on top of
> the
> > NotifyingSailBase:
> >
> > https://github.com/apache/marmotta/blob/develop/libraries/kiwi/kiwi-
> triplestore/src/main/java/org/apache/marmotta/kiwi/sail/KiWiStore.java
> >
> >
> >
> > On Mon, Mar 27, 2017 at 12:51 PM, Jayan Vidanapathirana <
> > jayancv.13@cse.mrt.ac.lk> wrote:
> >
> >> Hi,
> >>
> >> According to migration doc they said "The RDBMS Sail (that is, Sesame
> >> storage support for PostgreSQL and MySQL), which was deprecated since
> >> Sesame release 2.7.0, has been completely removed in RDF4J. If you were
> >> still using this storage backend as part of your project, you will need
> to
> >> switch to a different database type before upgrading or look into
> >> third-party implementations that may still support those databases."
> >> So I checked alternative implementation, also I asked some details about
> >> this in the rdf4j-dev list.
> >> Replies I got,
> >>
> >> From: Jeen Broekstra <je...@gmail.com>
> >> Date: 27 March 2017 at 09:49
> >> Subject: Re: [rdf4j-dev] Sesame sail
> >> To: rdf4j developer discussions <rd...@eclipse.org>
> >>
> >>
> >>
> >> On 27 Mar 2017, at 15:12, Jayan Vidanapathirana <
> jayancv.13@cse.mrt.ac.lk>
> >> wrote:
> >>
> >> Hi all,
> >>
> >> I'm Jayan and now I migrate a project, Sesame 2.7 to rdf4j 1.0 . Can I
> know
> >> is there any replacement or alternative implementation for Sesame Sail ?
> >>
> >>
> >> Yes, it’s called rdf4j-sail.
> >>
> >> As an aside: we’re happy to help of course, but this mailing list
> >> (rdf4j-dev) is primarily intended for discussions between the rdf4j
> >> developers themselves. For questions on how to use RDF4J, we’d prefer
> you
> >> use the rdf4j-users list, instead. See http://rdf4j.org/support/ for
> more
> >> details.
> >>
> >> HTH,
> >>
> >> Jeen
> >>
> >> ____________________________________________________________
> >> _____________________________
> >>
> >> From: Peter Ansell <an...@gmail.com>
> >> Date: 27 March 2017 at 09:59
> >> Subject: Re: [rdf4j-dev] Sesame sail
> >> To: rdf4j developer discussions <rd...@eclipse.org>
> >>
> >>
> >> Hi Jayan,
> >>
> >> Sail still exists, just in a different package, in RDF4J:
> >>
> >> http://docs.rdf4j.org/javadoc/2.0/org/eclipse/rdf4j/sail/Sail.html
> >>
> >> The migration documentation may help you:
> >>
> >> http://docs.rdf4j.org/migration/#_migrating_from_sesame_2
> >>
> >> Cheers,
> >>
> >> Peter
> >> _____________________________________________________________________
> >>
> >> Therefore still we can work on RDF4J sail.
> >>
> >> On 25 March 2017 at 23:14, Sergio Fernández <wi...@apache.org> wrote:
> >>
> >> > Marmotta currently supports Jaca 1.7, but with such change we will
> raise
> >> it
> >> > to 1.8.
> >> >
> >> > Regarding Sesame, we're still using 2.7.x; our code base is not
> >> compatible
> >> > with 2.8, as the issues linked in Jira. You should define what's the
> best
> >> > migration path.
> >> >
> >> >
> >> > On Mar 25, 2017 2:55 AM, "Jayan Vidanapathirana" <
> >> jayancv.13@cse.mrt.ac.lk
> >> > >
> >> > wrote:
> >> >
> >> > Hi Sergio,
> >> >
> >> > Still Marmotta in java 1.7 and it uses sesame 2. According to this
> >> > migration guide[1] we have to migrate sesame 2 to RDF4J 1.0. Also is
> >> there
> >> > any effect, when upgrading sesame 2.7 to 2.8 or 2.9 ?
> >> >
> >> > [1]- http://docs.rdf4j.org/migration/#_sesame_to_rdf4j_
> migration_guide
> >> >
> >> >
> >> > On 24 March 2017 at 19:17, Jayan Vidanapathirana <
> >> jayancv.13@cse.mrt.ac.lk
> >> > >
> >> > wrote:
> >> >
> >> > > Hi Sergio,
> >> > >
> >> > > Yeah I build Marmotta and now I working on some RDF tutorials.
> >> > > Thanks for your guidance.
> >> > >
> >> > > On 24 March 2017 at 13:13, Sergio Fernández <wi...@apache.org>
> wrote:
> >> > >
> >> > >> Hi Jayan,
> >> > >>
> >> > >> On Thu, Mar 23, 2017 at 12:47 PM, Jayan Vidanapathirana <
> >> > >> jayancv.13@cse.mrt.ac.lk> wrote:
> >> > >> >
> >> > >> > [ERROR] Failed to execute goal
> >> > >> > org.apache.maven.plugins:maven-archetype-plugin:2.2:
> >> integration-test
> >> > >> > (default-integration-test) on project marmotta-archetype-module:
> >> > >> > [ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
> >> > >> >
> >> > >>
> >> > >> If you make a:
> >> > >>
> >> > >> mvn clean install -DskipTests
> >> > >>
> >> > >> you should be safe, then the build will install the required
> >> archetypes,
> >> > >> too.
> >> > >>
> >> > >> >
> >> > >> > > I'm Jayan Vidanapathirana, a final year undergraduate from
> >> > Department
> >> > >> of
> >> > >> > > Computer Science and Engineering, University of Moratuwa. I'm
> >> > >> interesting
> >> > >> > > about this project. Now I'm studying about Marmotta and sesame.
> >> > >> > >
> >> > >> > > So, I would like to know more details about this project and
> main
> >> > >> > > knowledge areas.
> >> > >> >
> >> > >>
> >> > >> Well, this particular GSoC project requires quite some deep
> >> > understanding
> >> > >> about the RDF stack, including SPARQL and other related
> technologies.
> >> > >>
> >> > >> We are currently using OpenRDF Sesame 2.7.x, which now has moved to
> >> > >> Eclipse
> >> > >> RDF4J: http://rdf4j.org/ So for us it'd be great to catch-up with
> the
> >> > >> latest developments there and migrate to the new library. Besides
> the
> >> > >> artifacts and packages renaming, there may be different
> >> > incompatibilities
> >> > >> in our source bases, probably mainly in the Platform and the KiWi
> >> triple
> >> > >> store.
> >> > >>
> >> > >> Start getting familiar with our code base. We have a simple
> >> methodology
> >> > >> that you should follow:
> >> > >>
> >> > >> https://wiki.apache.org/marmotta/GSoC/Methodology
> >> > >>
> >> > >> But feel free to ask.
> >> > >>
> >> > >> Cheers,
> >> > >>
> >> > >> --
> >> > >> Sergio Fernández
> >> > >> Partner Technology Manager
> >> > >> Redlink GmbH
> >> > >> m: +43 6602747925
> >> > >> e: sergio.fernandez@redlink.co
> >> > >> w: http://redlink.co
> >> > >>
> >> > >
> >> > >
> >> > >
> >> > > --
> >> > > Best Regards
> >> > >
> >> > > Jayan Vidanapathirana
> >> > > Undergraduate (CSE '13 Batch )
> >> > > Computer Science & Engineering Department
> >> > > University of Moratuwa.
> >> > > jcvidanapathirana@gmail.com
> >> > > [image: https://lk.linkedin.com/in/jayancv]
> >> > > <https://lk.linkedin.com/in/jayancv>
> >> > >
> >> >
> >> >
> >> >
> >> > --
> >> > Best Regards
> >> >
> >> > Jayan Vidanapathirana
> >> > Undergraduate (CSE '13 Batch )
> >> > Computer Science & Engineering Department
> >> > University of Moratuwa.
> >> > jcvidanapathirana@gmail.com
> >> > [image: https://lk.linkedin.com/in/jayancv]
> >> > <https://lk.linkedin.com/in/jayancv>
> >> >
> >>
> >>
> >>
> >> --
> >> Best Regards
> >>
> >> Jayan Vidanapathirana
> >> Undergraduate (CSE '13 Batch )
> >> Computer Science & Engineering Department
> >> University of Moratuwa.
> >> jcvidanapathirana@gmail.com
> >> [image: https://lk.linkedin.com/in/jayancv]
> >> <https://lk.linkedin.com/in/jayancv>
> >>
> >
> >
> >
> > --
> > Sergio Fernández
> > Partner Technology Manager
> > Redlink GmbH
> > m: +43 6602747925
> > e: sergio.fernandez@redlink.co
> > w: http://redlink.co
>
--
Best Regards
Jayan Vidanapathirana
Undergraduate (CSE '13 Batch )
Computer Science & Engineering Department
University of Moratuwa.
jcvidanapathirana@gmail.com
[image: https://lk.linkedin.com/in/jayancv]
<https://lk.linkedin.com/in/jayancv>
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Peter Ansell <an...@gmail.com>.
Hi Sergio, Jayan,
The NotifyingSailBase functionality is still supported but it was
labelled as Deprecated when it was renamed to AbstractNotifyingSail.
https://github.com/eclipse/rdf4j/blob/master/core/sail/api/src/main/java/org/eclipse/rdf4j/sail/helpers/NotifyingSailBase.java
https://github.com/eclipse/rdf4j/blob/master/core/sail/api/src/main/java/org/eclipse/rdf4j/sail/helpers/AbstractNotifyingSail.java
Cheers,
Peter
On 27 March 2017 at 22:50, Sergio Fernández <wi...@apache.org> wrote:
> the KiWi triplestore doesn't rely on RDBMS Sail, but it plugs on top of the
> NotifyingSailBase:
>
> https://github.com/apache/marmotta/blob/develop/libraries/kiwi/kiwi-triplestore/src/main/java/org/apache/marmotta/kiwi/sail/KiWiStore.java
>
>
>
> On Mon, Mar 27, 2017 at 12:51 PM, Jayan Vidanapathirana <
> jayancv.13@cse.mrt.ac.lk> wrote:
>
>> Hi,
>>
>> According to migration doc they said "The RDBMS Sail (that is, Sesame
>> storage support for PostgreSQL and MySQL), which was deprecated since
>> Sesame release 2.7.0, has been completely removed in RDF4J. If you were
>> still using this storage backend as part of your project, you will need to
>> switch to a different database type before upgrading or look into
>> third-party implementations that may still support those databases."
>> So I checked alternative implementation, also I asked some details about
>> this in the rdf4j-dev list.
>> Replies I got,
>>
>> From: Jeen Broekstra <je...@gmail.com>
>> Date: 27 March 2017 at 09:49
>> Subject: Re: [rdf4j-dev] Sesame sail
>> To: rdf4j developer discussions <rd...@eclipse.org>
>>
>>
>>
>> On 27 Mar 2017, at 15:12, Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>
>> wrote:
>>
>> Hi all,
>>
>> I'm Jayan and now I migrate a project, Sesame 2.7 to rdf4j 1.0 . Can I know
>> is there any replacement or alternative implementation for Sesame Sail ?
>>
>>
>> Yes, it’s called rdf4j-sail.
>>
>> As an aside: we’re happy to help of course, but this mailing list
>> (rdf4j-dev) is primarily intended for discussions between the rdf4j
>> developers themselves. For questions on how to use RDF4J, we’d prefer you
>> use the rdf4j-users list, instead. See http://rdf4j.org/support/ for more
>> details.
>>
>> HTH,
>>
>> Jeen
>>
>> ____________________________________________________________
>> _____________________________
>>
>> From: Peter Ansell <an...@gmail.com>
>> Date: 27 March 2017 at 09:59
>> Subject: Re: [rdf4j-dev] Sesame sail
>> To: rdf4j developer discussions <rd...@eclipse.org>
>>
>>
>> Hi Jayan,
>>
>> Sail still exists, just in a different package, in RDF4J:
>>
>> http://docs.rdf4j.org/javadoc/2.0/org/eclipse/rdf4j/sail/Sail.html
>>
>> The migration documentation may help you:
>>
>> http://docs.rdf4j.org/migration/#_migrating_from_sesame_2
>>
>> Cheers,
>>
>> Peter
>> _____________________________________________________________________
>>
>> Therefore still we can work on RDF4J sail.
>>
>> On 25 March 2017 at 23:14, Sergio Fernández <wi...@apache.org> wrote:
>>
>> > Marmotta currently supports Jaca 1.7, but with such change we will raise
>> it
>> > to 1.8.
>> >
>> > Regarding Sesame, we're still using 2.7.x; our code base is not
>> compatible
>> > with 2.8, as the issues linked in Jira. You should define what's the best
>> > migration path.
>> >
>> >
>> > On Mar 25, 2017 2:55 AM, "Jayan Vidanapathirana" <
>> jayancv.13@cse.mrt.ac.lk
>> > >
>> > wrote:
>> >
>> > Hi Sergio,
>> >
>> > Still Marmotta in java 1.7 and it uses sesame 2. According to this
>> > migration guide[1] we have to migrate sesame 2 to RDF4J 1.0. Also is
>> there
>> > any effect, when upgrading sesame 2.7 to 2.8 or 2.9 ?
>> >
>> > [1]- http://docs.rdf4j.org/migration/#_sesame_to_rdf4j_migration_guide
>> >
>> >
>> > On 24 March 2017 at 19:17, Jayan Vidanapathirana <
>> jayancv.13@cse.mrt.ac.lk
>> > >
>> > wrote:
>> >
>> > > Hi Sergio,
>> > >
>> > > Yeah I build Marmotta and now I working on some RDF tutorials.
>> > > Thanks for your guidance.
>> > >
>> > > On 24 March 2017 at 13:13, Sergio Fernández <wi...@apache.org> wrote:
>> > >
>> > >> Hi Jayan,
>> > >>
>> > >> On Thu, Mar 23, 2017 at 12:47 PM, Jayan Vidanapathirana <
>> > >> jayancv.13@cse.mrt.ac.lk> wrote:
>> > >> >
>> > >> > [ERROR] Failed to execute goal
>> > >> > org.apache.maven.plugins:maven-archetype-plugin:2.2:
>> integration-test
>> > >> > (default-integration-test) on project marmotta-archetype-module:
>> > >> > [ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
>> > >> >
>> > >>
>> > >> If you make a:
>> > >>
>> > >> mvn clean install -DskipTests
>> > >>
>> > >> you should be safe, then the build will install the required
>> archetypes,
>> > >> too.
>> > >>
>> > >> >
>> > >> > > I'm Jayan Vidanapathirana, a final year undergraduate from
>> > Department
>> > >> of
>> > >> > > Computer Science and Engineering, University of Moratuwa. I'm
>> > >> interesting
>> > >> > > about this project. Now I'm studying about Marmotta and sesame.
>> > >> > >
>> > >> > > So, I would like to know more details about this project and main
>> > >> > > knowledge areas.
>> > >> >
>> > >>
>> > >> Well, this particular GSoC project requires quite some deep
>> > understanding
>> > >> about the RDF stack, including SPARQL and other related technologies.
>> > >>
>> > >> We are currently using OpenRDF Sesame 2.7.x, which now has moved to
>> > >> Eclipse
>> > >> RDF4J: http://rdf4j.org/ So for us it'd be great to catch-up with the
>> > >> latest developments there and migrate to the new library. Besides the
>> > >> artifacts and packages renaming, there may be different
>> > incompatibilities
>> > >> in our source bases, probably mainly in the Platform and the KiWi
>> triple
>> > >> store.
>> > >>
>> > >> Start getting familiar with our code base. We have a simple
>> methodology
>> > >> that you should follow:
>> > >>
>> > >> https://wiki.apache.org/marmotta/GSoC/Methodology
>> > >>
>> > >> But feel free to ask.
>> > >>
>> > >> Cheers,
>> > >>
>> > >> --
>> > >> Sergio Fernández
>> > >> Partner Technology Manager
>> > >> Redlink GmbH
>> > >> m: +43 6602747925
>> > >> e: sergio.fernandez@redlink.co
>> > >> w: http://redlink.co
>> > >>
>> > >
>> > >
>> > >
>> > > --
>> > > Best Regards
>> > >
>> > > Jayan Vidanapathirana
>> > > Undergraduate (CSE '13 Batch )
>> > > Computer Science & Engineering Department
>> > > University of Moratuwa.
>> > > jcvidanapathirana@gmail.com
>> > > [image: https://lk.linkedin.com/in/jayancv]
>> > > <https://lk.linkedin.com/in/jayancv>
>> > >
>> >
>> >
>> >
>> > --
>> > Best Regards
>> >
>> > Jayan Vidanapathirana
>> > Undergraduate (CSE '13 Batch )
>> > Computer Science & Engineering Department
>> > University of Moratuwa.
>> > jcvidanapathirana@gmail.com
>> > [image: https://lk.linkedin.com/in/jayancv]
>> > <https://lk.linkedin.com/in/jayancv>
>> >
>>
>>
>>
>> --
>> Best Regards
>>
>> Jayan Vidanapathirana
>> Undergraduate (CSE '13 Batch )
>> Computer Science & Engineering Department
>> University of Moratuwa.
>> jcvidanapathirana@gmail.com
>> [image: https://lk.linkedin.com/in/jayancv]
>> <https://lk.linkedin.com/in/jayancv>
>>
>
>
>
> --
> Sergio Fernández
> Partner Technology Manager
> Redlink GmbH
> m: +43 6602747925
> e: sergio.fernandez@redlink.co
> w: http://redlink.co
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Sergio Fernández <wi...@apache.org>.
the KiWi triplestore doesn't rely on RDBMS Sail, but it plugs on top of the
NotifyingSailBase:
https://github.com/apache/marmotta/blob/develop/libraries/kiwi/kiwi-triplestore/src/main/java/org/apache/marmotta/kiwi/sail/KiWiStore.java
On Mon, Mar 27, 2017 at 12:51 PM, Jayan Vidanapathirana <
jayancv.13@cse.mrt.ac.lk> wrote:
> Hi,
>
> According to migration doc they said "The RDBMS Sail (that is, Sesame
> storage support for PostgreSQL and MySQL), which was deprecated since
> Sesame release 2.7.0, has been completely removed in RDF4J. If you were
> still using this storage backend as part of your project, you will need to
> switch to a different database type before upgrading or look into
> third-party implementations that may still support those databases."
> So I checked alternative implementation, also I asked some details about
> this in the rdf4j-dev list.
> Replies I got,
>
> From: Jeen Broekstra <je...@gmail.com>
> Date: 27 March 2017 at 09:49
> Subject: Re: [rdf4j-dev] Sesame sail
> To: rdf4j developer discussions <rd...@eclipse.org>
>
>
>
> On 27 Mar 2017, at 15:12, Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>
> wrote:
>
> Hi all,
>
> I'm Jayan and now I migrate a project, Sesame 2.7 to rdf4j 1.0 . Can I know
> is there any replacement or alternative implementation for Sesame Sail ?
>
>
> Yes, it’s called rdf4j-sail.
>
> As an aside: we’re happy to help of course, but this mailing list
> (rdf4j-dev) is primarily intended for discussions between the rdf4j
> developers themselves. For questions on how to use RDF4J, we’d prefer you
> use the rdf4j-users list, instead. See http://rdf4j.org/support/ for more
> details.
>
> HTH,
>
> Jeen
>
> ____________________________________________________________
> _____________________________
>
> From: Peter Ansell <an...@gmail.com>
> Date: 27 March 2017 at 09:59
> Subject: Re: [rdf4j-dev] Sesame sail
> To: rdf4j developer discussions <rd...@eclipse.org>
>
>
> Hi Jayan,
>
> Sail still exists, just in a different package, in RDF4J:
>
> http://docs.rdf4j.org/javadoc/2.0/org/eclipse/rdf4j/sail/Sail.html
>
> The migration documentation may help you:
>
> http://docs.rdf4j.org/migration/#_migrating_from_sesame_2
>
> Cheers,
>
> Peter
> _____________________________________________________________________
>
> Therefore still we can work on RDF4J sail.
>
> On 25 March 2017 at 23:14, Sergio Fernández <wi...@apache.org> wrote:
>
> > Marmotta currently supports Jaca 1.7, but with such change we will raise
> it
> > to 1.8.
> >
> > Regarding Sesame, we're still using 2.7.x; our code base is not
> compatible
> > with 2.8, as the issues linked in Jira. You should define what's the best
> > migration path.
> >
> >
> > On Mar 25, 2017 2:55 AM, "Jayan Vidanapathirana" <
> jayancv.13@cse.mrt.ac.lk
> > >
> > wrote:
> >
> > Hi Sergio,
> >
> > Still Marmotta in java 1.7 and it uses sesame 2. According to this
> > migration guide[1] we have to migrate sesame 2 to RDF4J 1.0. Also is
> there
> > any effect, when upgrading sesame 2.7 to 2.8 or 2.9 ?
> >
> > [1]- http://docs.rdf4j.org/migration/#_sesame_to_rdf4j_migration_guide
> >
> >
> > On 24 March 2017 at 19:17, Jayan Vidanapathirana <
> jayancv.13@cse.mrt.ac.lk
> > >
> > wrote:
> >
> > > Hi Sergio,
> > >
> > > Yeah I build Marmotta and now I working on some RDF tutorials.
> > > Thanks for your guidance.
> > >
> > > On 24 March 2017 at 13:13, Sergio Fernández <wi...@apache.org> wrote:
> > >
> > >> Hi Jayan,
> > >>
> > >> On Thu, Mar 23, 2017 at 12:47 PM, Jayan Vidanapathirana <
> > >> jayancv.13@cse.mrt.ac.lk> wrote:
> > >> >
> > >> > [ERROR] Failed to execute goal
> > >> > org.apache.maven.plugins:maven-archetype-plugin:2.2:
> integration-test
> > >> > (default-integration-test) on project marmotta-archetype-module:
> > >> > [ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
> > >> >
> > >>
> > >> If you make a:
> > >>
> > >> mvn clean install -DskipTests
> > >>
> > >> you should be safe, then the build will install the required
> archetypes,
> > >> too.
> > >>
> > >> >
> > >> > > I'm Jayan Vidanapathirana, a final year undergraduate from
> > Department
> > >> of
> > >> > > Computer Science and Engineering, University of Moratuwa. I'm
> > >> interesting
> > >> > > about this project. Now I'm studying about Marmotta and sesame.
> > >> > >
> > >> > > So, I would like to know more details about this project and main
> > >> > > knowledge areas.
> > >> >
> > >>
> > >> Well, this particular GSoC project requires quite some deep
> > understanding
> > >> about the RDF stack, including SPARQL and other related technologies.
> > >>
> > >> We are currently using OpenRDF Sesame 2.7.x, which now has moved to
> > >> Eclipse
> > >> RDF4J: http://rdf4j.org/ So for us it'd be great to catch-up with the
> > >> latest developments there and migrate to the new library. Besides the
> > >> artifacts and packages renaming, there may be different
> > incompatibilities
> > >> in our source bases, probably mainly in the Platform and the KiWi
> triple
> > >> store.
> > >>
> > >> Start getting familiar with our code base. We have a simple
> methodology
> > >> that you should follow:
> > >>
> > >> https://wiki.apache.org/marmotta/GSoC/Methodology
> > >>
> > >> But feel free to ask.
> > >>
> > >> Cheers,
> > >>
> > >> --
> > >> Sergio Fernández
> > >> Partner Technology Manager
> > >> Redlink GmbH
> > >> m: +43 6602747925
> > >> e: sergio.fernandez@redlink.co
> > >> w: http://redlink.co
> > >>
> > >
> > >
> > >
> > > --
> > > Best Regards
> > >
> > > Jayan Vidanapathirana
> > > Undergraduate (CSE '13 Batch )
> > > Computer Science & Engineering Department
> > > University of Moratuwa.
> > > jcvidanapathirana@gmail.com
> > > [image: https://lk.linkedin.com/in/jayancv]
> > > <https://lk.linkedin.com/in/jayancv>
> > >
> >
> >
> >
> > --
> > Best Regards
> >
> > Jayan Vidanapathirana
> > Undergraduate (CSE '13 Batch )
> > Computer Science & Engineering Department
> > University of Moratuwa.
> > jcvidanapathirana@gmail.com
> > [image: https://lk.linkedin.com/in/jayancv]
> > <https://lk.linkedin.com/in/jayancv>
> >
>
>
>
> --
> Best Regards
>
> Jayan Vidanapathirana
> Undergraduate (CSE '13 Batch )
> Computer Science & Engineering Department
> University of Moratuwa.
> jcvidanapathirana@gmail.com
> [image: https://lk.linkedin.com/in/jayancv]
> <https://lk.linkedin.com/in/jayancv>
>
--
Sergio Fernández
Partner Technology Manager
Redlink GmbH
m: +43 6602747925
e: sergio.fernandez@redlink.co
w: http://redlink.co
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>.
Hi,
According to migration doc they said "The RDBMS Sail (that is, Sesame
storage support for PostgreSQL and MySQL), which was deprecated since
Sesame release 2.7.0, has been completely removed in RDF4J. If you were
still using this storage backend as part of your project, you will need to
switch to a different database type before upgrading or look into
third-party implementations that may still support those databases."
So I checked alternative implementation, also I asked some details about
this in the rdf4j-dev list.
Replies I got,
From: Jeen Broekstra <je...@gmail.com>
Date: 27 March 2017 at 09:49
Subject: Re: [rdf4j-dev] Sesame sail
To: rdf4j developer discussions <rd...@eclipse.org>
On 27 Mar 2017, at 15:12, Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>
wrote:
Hi all,
I'm Jayan and now I migrate a project, Sesame 2.7 to rdf4j 1.0 . Can I know
is there any replacement or alternative implementation for Sesame Sail ?
Yes, it’s called rdf4j-sail.
As an aside: we’re happy to help of course, but this mailing list
(rdf4j-dev) is primarily intended for discussions between the rdf4j
developers themselves. For questions on how to use RDF4J, we’d prefer you
use the rdf4j-users list, instead. See http://rdf4j.org/support/ for more
details.
HTH,
Jeen
_________________________________________________________________________________________
From: Peter Ansell <an...@gmail.com>
Date: 27 March 2017 at 09:59
Subject: Re: [rdf4j-dev] Sesame sail
To: rdf4j developer discussions <rd...@eclipse.org>
Hi Jayan,
Sail still exists, just in a different package, in RDF4J:
http://docs.rdf4j.org/javadoc/2.0/org/eclipse/rdf4j/sail/Sail.html
The migration documentation may help you:
http://docs.rdf4j.org/migration/#_migrating_from_sesame_2
Cheers,
Peter
_____________________________________________________________________
Therefore still we can work on RDF4J sail.
On 25 March 2017 at 23:14, Sergio Fernández <wi...@apache.org> wrote:
> Marmotta currently supports Jaca 1.7, but with such change we will raise it
> to 1.8.
>
> Regarding Sesame, we're still using 2.7.x; our code base is not compatible
> with 2.8, as the issues linked in Jira. You should define what's the best
> migration path.
>
>
> On Mar 25, 2017 2:55 AM, "Jayan Vidanapathirana" <jayancv.13@cse.mrt.ac.lk
> >
> wrote:
>
> Hi Sergio,
>
> Still Marmotta in java 1.7 and it uses sesame 2. According to this
> migration guide[1] we have to migrate sesame 2 to RDF4J 1.0. Also is there
> any effect, when upgrading sesame 2.7 to 2.8 or 2.9 ?
>
> [1]- http://docs.rdf4j.org/migration/#_sesame_to_rdf4j_migration_guide
>
>
> On 24 March 2017 at 19:17, Jayan Vidanapathirana <jayancv.13@cse.mrt.ac.lk
> >
> wrote:
>
> > Hi Sergio,
> >
> > Yeah I build Marmotta and now I working on some RDF tutorials.
> > Thanks for your guidance.
> >
> > On 24 March 2017 at 13:13, Sergio Fernández <wi...@apache.org> wrote:
> >
> >> Hi Jayan,
> >>
> >> On Thu, Mar 23, 2017 at 12:47 PM, Jayan Vidanapathirana <
> >> jayancv.13@cse.mrt.ac.lk> wrote:
> >> >
> >> > [ERROR] Failed to execute goal
> >> > org.apache.maven.plugins:maven-archetype-plugin:2.2:integration-test
> >> > (default-integration-test) on project marmotta-archetype-module:
> >> > [ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
> >> >
> >>
> >> If you make a:
> >>
> >> mvn clean install -DskipTests
> >>
> >> you should be safe, then the build will install the required archetypes,
> >> too.
> >>
> >> >
> >> > > I'm Jayan Vidanapathirana, a final year undergraduate from
> Department
> >> of
> >> > > Computer Science and Engineering, University of Moratuwa. I'm
> >> interesting
> >> > > about this project. Now I'm studying about Marmotta and sesame.
> >> > >
> >> > > So, I would like to know more details about this project and main
> >> > > knowledge areas.
> >> >
> >>
> >> Well, this particular GSoC project requires quite some deep
> understanding
> >> about the RDF stack, including SPARQL and other related technologies.
> >>
> >> We are currently using OpenRDF Sesame 2.7.x, which now has moved to
> >> Eclipse
> >> RDF4J: http://rdf4j.org/ So for us it'd be great to catch-up with the
> >> latest developments there and migrate to the new library. Besides the
> >> artifacts and packages renaming, there may be different
> incompatibilities
> >> in our source bases, probably mainly in the Platform and the KiWi triple
> >> store.
> >>
> >> Start getting familiar with our code base. We have a simple methodology
> >> that you should follow:
> >>
> >> https://wiki.apache.org/marmotta/GSoC/Methodology
> >>
> >> But feel free to ask.
> >>
> >> Cheers,
> >>
> >> --
> >> Sergio Fernández
> >> Partner Technology Manager
> >> Redlink GmbH
> >> m: +43 6602747925
> >> e: sergio.fernandez@redlink.co
> >> w: http://redlink.co
> >>
> >
> >
> >
> > --
> > Best Regards
> >
> > Jayan Vidanapathirana
> > Undergraduate (CSE '13 Batch )
> > Computer Science & Engineering Department
> > University of Moratuwa.
> > jcvidanapathirana@gmail.com
> > [image: https://lk.linkedin.com/in/jayancv]
> > <https://lk.linkedin.com/in/jayancv>
> >
>
>
>
> --
> Best Regards
>
> Jayan Vidanapathirana
> Undergraduate (CSE '13 Batch )
> Computer Science & Engineering Department
> University of Moratuwa.
> jcvidanapathirana@gmail.com
> [image: https://lk.linkedin.com/in/jayancv]
> <https://lk.linkedin.com/in/jayancv>
>
--
Best Regards
Jayan Vidanapathirana
Undergraduate (CSE '13 Batch )
Computer Science & Engineering Department
University of Moratuwa.
jcvidanapathirana@gmail.com
[image: https://lk.linkedin.com/in/jayancv]
<https://lk.linkedin.com/in/jayancv>
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Sergio Fernández <wi...@apache.org>.
Marmotta currently supports Jaca 1.7, but with such change we will raise it
to 1.8.
Regarding Sesame, we're still using 2.7.x; our code base is not compatible
with 2.8, as the issues linked in Jira. You should define what's the best
migration path.
On Mar 25, 2017 2:55 AM, "Jayan Vidanapathirana" <ja...@cse.mrt.ac.lk>
wrote:
Hi Sergio,
Still Marmotta in java 1.7 and it uses sesame 2. According to this
migration guide[1] we have to migrate sesame 2 to RDF4J 1.0. Also is there
any effect, when upgrading sesame 2.7 to 2.8 or 2.9 ?
[1]- http://docs.rdf4j.org/migration/#_sesame_to_rdf4j_migration_guide
On 24 March 2017 at 19:17, Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>
wrote:
> Hi Sergio,
>
> Yeah I build Marmotta and now I working on some RDF tutorials.
> Thanks for your guidance.
>
> On 24 March 2017 at 13:13, Sergio Fernández <wi...@apache.org> wrote:
>
>> Hi Jayan,
>>
>> On Thu, Mar 23, 2017 at 12:47 PM, Jayan Vidanapathirana <
>> jayancv.13@cse.mrt.ac.lk> wrote:
>> >
>> > [ERROR] Failed to execute goal
>> > org.apache.maven.plugins:maven-archetype-plugin:2.2:integration-test
>> > (default-integration-test) on project marmotta-archetype-module:
>> > [ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
>> >
>>
>> If you make a:
>>
>> mvn clean install -DskipTests
>>
>> you should be safe, then the build will install the required archetypes,
>> too.
>>
>> >
>> > > I'm Jayan Vidanapathirana, a final year undergraduate from Department
>> of
>> > > Computer Science and Engineering, University of Moratuwa. I'm
>> interesting
>> > > about this project. Now I'm studying about Marmotta and sesame.
>> > >
>> > > So, I would like to know more details about this project and main
>> > > knowledge areas.
>> >
>>
>> Well, this particular GSoC project requires quite some deep understanding
>> about the RDF stack, including SPARQL and other related technologies.
>>
>> We are currently using OpenRDF Sesame 2.7.x, which now has moved to
>> Eclipse
>> RDF4J: http://rdf4j.org/ So for us it'd be great to catch-up with the
>> latest developments there and migrate to the new library. Besides the
>> artifacts and packages renaming, there may be different incompatibilities
>> in our source bases, probably mainly in the Platform and the KiWi triple
>> store.
>>
>> Start getting familiar with our code base. We have a simple methodology
>> that you should follow:
>>
>> https://wiki.apache.org/marmotta/GSoC/Methodology
>>
>> But feel free to ask.
>>
>> Cheers,
>>
>> --
>> Sergio Fernández
>> Partner Technology Manager
>> Redlink GmbH
>> m: +43 6602747925
>> e: sergio.fernandez@redlink.co
>> w: http://redlink.co
>>
>
>
>
> --
> Best Regards
>
> Jayan Vidanapathirana
> Undergraduate (CSE '13 Batch )
> Computer Science & Engineering Department
> University of Moratuwa.
> jcvidanapathirana@gmail.com
> [image: https://lk.linkedin.com/in/jayancv]
> <https://lk.linkedin.com/in/jayancv>
>
--
Best Regards
Jayan Vidanapathirana
Undergraduate (CSE '13 Batch )
Computer Science & Engineering Department
University of Moratuwa.
jcvidanapathirana@gmail.com
[image: https://lk.linkedin.com/in/jayancv]
<https://lk.linkedin.com/in/jayancv>
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>.
Hi Sergio,
Still Marmotta in java 1.7 and it uses sesame 2. According to this
migration guide[1] we have to migrate sesame 2 to RDF4J 1.0. Also is there
any effect, when upgrading sesame 2.7 to 2.8 or 2.9 ?
[1]- http://docs.rdf4j.org/migration/#_sesame_to_rdf4j_migration_guide
On 24 March 2017 at 19:17, Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>
wrote:
> Hi Sergio,
>
> Yeah I build Marmotta and now I working on some RDF tutorials.
> Thanks for your guidance.
>
> On 24 March 2017 at 13:13, Sergio Fernández <wi...@apache.org> wrote:
>
>> Hi Jayan,
>>
>> On Thu, Mar 23, 2017 at 12:47 PM, Jayan Vidanapathirana <
>> jayancv.13@cse.mrt.ac.lk> wrote:
>> >
>> > [ERROR] Failed to execute goal
>> > org.apache.maven.plugins:maven-archetype-plugin:2.2:integration-test
>> > (default-integration-test) on project marmotta-archetype-module:
>> > [ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
>> >
>>
>> If you make a:
>>
>> mvn clean install -DskipTests
>>
>> you should be safe, then the build will install the required archetypes,
>> too.
>>
>> >
>> > > I'm Jayan Vidanapathirana, a final year undergraduate from Department
>> of
>> > > Computer Science and Engineering, University of Moratuwa. I'm
>> interesting
>> > > about this project. Now I'm studying about Marmotta and sesame.
>> > >
>> > > So, I would like to know more details about this project and main
>> > > knowledge areas.
>> >
>>
>> Well, this particular GSoC project requires quite some deep understanding
>> about the RDF stack, including SPARQL and other related technologies.
>>
>> We are currently using OpenRDF Sesame 2.7.x, which now has moved to
>> Eclipse
>> RDF4J: http://rdf4j.org/ So for us it'd be great to catch-up with the
>> latest developments there and migrate to the new library. Besides the
>> artifacts and packages renaming, there may be different incompatibilities
>> in our source bases, probably mainly in the Platform and the KiWi triple
>> store.
>>
>> Start getting familiar with our code base. We have a simple methodology
>> that you should follow:
>>
>> https://wiki.apache.org/marmotta/GSoC/Methodology
>>
>> But feel free to ask.
>>
>> Cheers,
>>
>> --
>> Sergio Fernández
>> Partner Technology Manager
>> Redlink GmbH
>> m: +43 6602747925
>> e: sergio.fernandez@redlink.co
>> w: http://redlink.co
>>
>
>
>
> --
> Best Regards
>
> Jayan Vidanapathirana
> Undergraduate (CSE '13 Batch )
> Computer Science & Engineering Department
> University of Moratuwa.
> jcvidanapathirana@gmail.com
> [image: https://lk.linkedin.com/in/jayancv]
> <https://lk.linkedin.com/in/jayancv>
>
--
Best Regards
Jayan Vidanapathirana
Undergraduate (CSE '13 Batch )
Computer Science & Engineering Department
University of Moratuwa.
jcvidanapathirana@gmail.com
[image: https://lk.linkedin.com/in/jayancv]
<https://lk.linkedin.com/in/jayancv>
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>.
Hi Sergio,
Yeah I build Marmotta and now I working on some RDF tutorials.
Thanks for your guidance.
On 24 March 2017 at 13:13, Sergio Fernández <wi...@apache.org> wrote:
> Hi Jayan,
>
> On Thu, Mar 23, 2017 at 12:47 PM, Jayan Vidanapathirana <
> jayancv.13@cse.mrt.ac.lk> wrote:
> >
> > [ERROR] Failed to execute goal
> > org.apache.maven.plugins:maven-archetype-plugin:2.2:integration-test
> > (default-integration-test) on project marmotta-archetype-module:
> > [ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
> >
>
> If you make a:
>
> mvn clean install -DskipTests
>
> you should be safe, then the build will install the required archetypes,
> too.
>
> >
> > > I'm Jayan Vidanapathirana, a final year undergraduate from Department
> of
> > > Computer Science and Engineering, University of Moratuwa. I'm
> interesting
> > > about this project. Now I'm studying about Marmotta and sesame.
> > >
> > > So, I would like to know more details about this project and main
> > > knowledge areas.
> >
>
> Well, this particular GSoC project requires quite some deep understanding
> about the RDF stack, including SPARQL and other related technologies.
>
> We are currently using OpenRDF Sesame 2.7.x, which now has moved to Eclipse
> RDF4J: http://rdf4j.org/ So for us it'd be great to catch-up with the
> latest developments there and migrate to the new library. Besides the
> artifacts and packages renaming, there may be different incompatibilities
> in our source bases, probably mainly in the Platform and the KiWi triple
> store.
>
> Start getting familiar with our code base. We have a simple methodology
> that you should follow:
>
> https://wiki.apache.org/marmotta/GSoC/Methodology
>
> But feel free to ask.
>
> Cheers,
>
> --
> Sergio Fernández
> Partner Technology Manager
> Redlink GmbH
> m: +43 6602747925
> e: sergio.fernandez@redlink.co
> w: http://redlink.co
>
--
Best Regards
Jayan Vidanapathirana
Undergraduate (CSE '13 Batch )
Computer Science & Engineering Department
University of Moratuwa.
jcvidanapathirana@gmail.com
[image: https://lk.linkedin.com/in/jayancv]
<https://lk.linkedin.com/in/jayancv>
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Sergio Fernández <wi...@apache.org>.
Hi Jayan,
On Thu, Mar 23, 2017 at 12:47 PM, Jayan Vidanapathirana <
jayancv.13@cse.mrt.ac.lk> wrote:
>
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-archetype-plugin:2.2:integration-test
> (default-integration-test) on project marmotta-archetype-module:
> [ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
>
If you make a:
mvn clean install -DskipTests
you should be safe, then the build will install the required archetypes,
too.
>
> > I'm Jayan Vidanapathirana, a final year undergraduate from Department of
> > Computer Science and Engineering, University of Moratuwa. I'm interesting
> > about this project. Now I'm studying about Marmotta and sesame.
> >
> > So, I would like to know more details about this project and main
> > knowledge areas.
>
Well, this particular GSoC project requires quite some deep understanding
about the RDF stack, including SPARQL and other related technologies.
We are currently using OpenRDF Sesame 2.7.x, which now has moved to Eclipse
RDF4J: http://rdf4j.org/ So for us it'd be great to catch-up with the
latest developments there and migrate to the new library. Besides the
artifacts and packages renaming, there may be different incompatibilities
in our source bases, probably mainly in the Platform and the KiWi triple
store.
Start getting familiar with our code base. We have a simple methodology
that you should follow:
https://wiki.apache.org/marmotta/GSoC/Methodology
But feel free to ask.
Cheers,
--
Sergio Fernández
Partner Technology Manager
Redlink GmbH
m: +43 6602747925
e: sergio.fernandez@redlink.co
w: http://redlink.co
Re: GSoC 2017 - Port Marmotta to Eclipse RDF4J
Posted by Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>.
Hi,
When I build Marmotta, I got an error and build faliure.
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-archetype-plugin:2.2:integration-test
(default-integration-test) on project marmotta-archetype-module:
[ERROR] Archetype IT 'basic' failed: Cannot run additions goals.
Also, I skipped the test and tried to build it, but still I got the same
error.
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On 23 March 2017 at 11:19, Jayan Vidanapathirana <ja...@cse.mrt.ac.lk>
wrote:
> Hi all,
>
> I'm Jayan Vidanapathirana, a final year undergraduate from Department of
> Computer Science and Engineering, University of Moratuwa. I'm interesting
> about this project. Now I'm studying about Marmotta and sesame.
>
> So, I would like to know more details about this project and main
> knowledge areas.
>
>
> --
> Best Regards
>
> Jayan Vidanapathirana
> Undergraduate (CSE '13 Batch )
> Computer Science & Engineering Department
> University of Moratuwa.
> jcvidanapathirana@gmail.com
> [image: https://lk.linkedin.com/in/jayancv]
> <https://lk.linkedin.com/in/jayancv>
>
--
Best Regards
Jayan Vidanapathirana
Undergraduate (CSE '13 Batch )
Computer Science & Engineering Department
University of Moratuwa.
jcvidanapathirana@gmail.com
[image: https://lk.linkedin.com/in/jayancv]
<https://lk.linkedin.com/in/jayancv>