Hi Andy: thanks for the response. Yes my data is in Trig format. But what do you mean by " it take just the default gfraph and loose the rest."
On Wed, Jul 31, 2013 at 4:06 AM, Andy Seaborne <[email protected]> wrote: > Jena is fine with TriG. > > You can't load TriG into a model because TriG is a dataset format (many > models). > > Is your data really TriG? > > If you use > > RDFDataMgr > > to load TriG into a model, (not a dataset), it will BUT it take just the > default gfraph and loose the rest. > > FileManager does to do this. It is calling modle.read and models > themselves don't support TriG. It's meaningless. > > For large files use the more efficient bulk loader: > > tdbloader --loc ./tdb FILE.trig > > Andy > > > On 31/07/13 10:56, Marco Neumann wrote: > >> Ok I see you say tdb2 can't handle Trig? well if so you might want to >> write >> a loader that chunks the data for you before loading it into tdb. >> >> >> >> >> On Wed, Jul 31, 2013 at 5:52 AM, Adeeb Noor <[email protected]> >> wrote: >> >> Hi Marco: >>> >>> Thanks for the response. I am currently using TDB but the problem is as I >>> said my data is around 17G and in Trig format. I never succeed. >>> >>> I cannot use the tdb2 as the file format is Trig. Does that make sense ? >>> >>> >>> On Wed, Jul 31, 2013 at 3:41 AM, Marco Neumann <[email protected] >>> >>>> wrote: >>>> >>> >>> try to use the tdb or tdb2 loader instead >>>> >>>> >>>> On Wed, Jul 31, 2013 at 5:39 AM, Adeeb Noor <[email protected]> >>>> wrote: >>>> >>>> Hi Dave: >>>>> >>>>> Thanks for the response. Here is my code: >>>>> >>>>> public class testTDB { >>>>> >>>>> public static void main(String[] args) { >>>>> >>>>> String directory = "./tdb"; >>>>> >>>>> Dataset dataset = TDBFactory.createDataset(**directory); >>>>> >>>>> Model tdb = dataset.getDefaultModel(); >>>>> >>>>> String source = "/Users/adeebnoor/Downloads/**Ontologies/umls.trig"; >>>>> >>>>> FileManager.get().readModel(**tdb, source, "TriG" ); >>>>> >>>>> tdb.close(); >>>>> >>>>> dataset.close(); >>>>> >>>>> } >>>>> >>>>> >>>>> I got this error: >>>>> >>>>> Exception in thread "main" >>>>> >>>> com.hp.hpl.jena.shared.**NoReaderForLangException: >>>> >>>>> TriG >>>>> >>>>> at com.hp.hpl.jena.rdf.model.**impl.RDFReaderFImpl.getReader( >>>>> RDFReaderFImpl.java:100) >>>>> >>>>> at com.hp.hpl.jena.rdf.model.**impl.ModelCom.read(ModelCom.**java:276) >>>>> >>>>> at >>>>> >>>> com.hp.hpl.jena.util.**FileManager.readModelWorker(** >>> FileManager.java:403) >>> >>>> >>>>> at com.hp.hpl.jena.util.**FileManager.readModel(** >>>>> FileManager.java:342) >>>>> >>>>> at ddid.testTDB.main(testTDB.**java:19) >>>>> >>>>> >>>>> Then I remove the Trig string pramater from the Filemangager method: >>>>> FileManager.get().readModel(**tdb, source ); >>>>> >>>>> and the program seems to be running and taking the whole memory but I >>>>> >>>> got >>> >>>> this warning message: >>>>> >>>>> 03:37:31 WARN riot :: Only triples or default >>>>> >>>> graph >>> >>>> data expected : named graph data ignored >>>>> >>>>> After waiting the program to finish I check it the TDB and there was >>>>> nothing on it. >>>>> >>>>> what do you think. >>>>> >>>>> Thanks >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> On Wed, Jul 31, 2013 at 2:17 AM, Dave Reynolds < >>>>> >>>> [email protected] >>>> >>>>> wrote: >>>>>> >>>>> >>>>> On 31/07/13 00:09, Adeeb Noor wrote: >>>>>> >>>>>> Hi All: >>>>>>> >>>>>>> I have a trig file (rdf) that is sized 17GB, I was wondering if Jena >>>>>>> >>>>>> has >>>> >>>>> triple store that can load this data. I know that Jena supports trig >>>>>>> format >>>>>>> but I am not sure about the size-wise. >>>>>>> >>>>>>> If not, can you point me out to a free triple store that is >>>>>>> >>>>>> compatible >>> >>>> with >>>>>>> Jene as my project structure is based all on Jena. >>>>>>> >>>>>>> >>>>>> I would have thought you could load that in to TDB just fine. I >>>>>> >>>>> would >>> >>>> guess that to be around 100m triples. >>>>>> >>>>>> Dave >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>>> -- >>>>> Adeeb Noor >>>>> Ph.D. Candidate >>>>> Dept of Computer Science >>>>> University of Colorado at Boulder >>>>> Cell: 571-484-3303 >>>>> Email: [email protected] >>>>> >>>>> >>>> >>>> >>>> -- >>>> >>>> >>>> --- >>>> Marco Neumann >>>> KONA >>>> >>>> >>> >>> >>> -- >>> Adeeb Noor >>> Ph.D. Candidate >>> Dept of Computer Science >>> University of Colorado at Boulder >>> Cell: 571-484-3303 >>> Email: [email protected] >>> >>> >> >> >> > -- Adeeb Noor Ph.D. Candidate Dept of Computer Science University of Colorado at Boulder Cell: 571-484-3303 Email: [email protected]
