Re: [Tracker] How to use tracker-miner-rss?

[Adrien Bustany <abustany gnome org>]

I don't think you need to make the FeedChannel a DataObject, actually
it's not one.

Regarding the critical, that looks not so good :/ Hopefully the author
will comment here.

Cheers

Adrien

Le Sun, 20 Feb 2011 23:33:00 +0900,
simon hong <simon hong81 gmail com> a écrit :

> Hi,
>
> In these days, I'm trying to use tracker-miner-rss.
> I tried Tracker-based feed reader
> ( http://phidias.barberaware.org/ ), but sadly, it cannot build with
> latest tracker libraries.
>
> I want to write tracker-feed utility to manage feed information for
> tracker-miner-rss, but currently I don't have enough knowledge about
> tracker system and rdf ontology.
>
> So, I wrote ttl file to insert feed information for tracker-miner-rss.
>
> =====   ttl file contents - start ======
>
> @prefix nie:
> <http://www.semanticdesktop.org/ontologies/2007/01/19/nie#>. @prefix
> mfo: <http://www.tracker-project.org/temp/mfo#>.
>
> <nytimes> a nie:DataObject, mfo:FeedChannel;
>         mfo:feedSettings <nytimesSettings>;
>         nie:url "http://feeds.nytimes.com/nyt/rss/Americas";;
>         nie:title "nytimes - Americas" .
>
> <nytimesSettings> a mfo:FeedSettings;
>         mfo:updateInterval 1 .
>
> ====== ttl file contents - end =======
>
> After I import this file by using tracker-import, I could confirm by
> the same sparql query in tracker-miner-rss.
>
> tracker-sparql -q "SELECT ?chanUrl ?interval ?chanUrn WHERE{?chanUrn a
> mfo:FeedChannel . ?chanUrn mfo:feedSettings ?settings . ?chanUrn
> nie:url ?chanUrl . ?settings mfo:updateInterval ?interval}"
>
> tracker-query outputs
> Results:
>   http://feeds.nytimes.com/nyt/rss/Americas, 1, nytimes
>
> After this import, I run "/usr/local/libexec/tracker-miner-rss"
> And, It is dead by segmentation fault.
>
> This is the output tracker-miner-rss.
> ======= tracker-miner-rss output - start ========
> Starting log:
>   File:'/home/simon/.local/share/tracker/tracker-miner-rss.log'
>
> (tracker-miner-rss:28218): GLib-GObject-WARNING **: invalid cast from
> `TrackerSparqlBackend' to `TrackerMinerRSS'
>
> (tracker-miner-rss:28218): GLib-GObject-WARNING **: invalid cast from
> `TrackerSparqlBackend' to `TrackerMiner'
> Segmentation Fault
> ======= tracker-miner-rss output -end =========
>
> Am I wrong to use tracker-miner-rss or my ttl file?
> I want to use tracker-miner-rss, but it is difficult to me.
>
> Please give any advices.
>
> Thank you.
> Simon.
>
>
> 2011/1/31 Martyn Russell <martyn lanedo com>
>
> > On 25/01/11 14:57, Roberto Guido wrote:
> >
> > > On Tue, 2011-01-25 at 23:33 +0900, simon hong wrote:
> > >
> > > > When I want to add feed adsress, shoud I update feed address in
> > > > tracker store by using tracker-sparql?
> > > > Is this right?
> > > >
> > > >  Yes, it is. All managed feeds are mapped in tracker-store with
> > > > MFO
> > > ontology, no other configurations are involved.
> > >
> > > Some time ago I started a project for a Tracker-based feed reader
> > > ( http://phidias.barberaware.org/ ), but as many other things I had
> > > noTracker-based feed reader
> > > time to maintain and evolve it. My TODO list is too long :-\
> > > In that package you find feeds-manager, a graphical tool to admin
> > > feeds mapped in tracker-store (add, remove, change attributes...):
> > > I'm unsure it is yet aligned with current version of Tracker's
> > > API, try it and if it doesn't works we can try to fix it.
> >
> > Actually, it is interesting you mention this, I would like to
> > improve the way feeds are used with the tracker utils perhaps. I
> > agree, we have a miner, but it is not obvious how that miner works
> > or how to get your feeds into it. Perhaps tracker-feed (a new
> > utility) should be written to test and allow simple administration
> > of this?
> >
> > Any takers?
> >
> > --
> > Regards,
> > Martyn