I'm not quite sure what's going on here. It looks like you are trying to load entire datasets as named graphs in another dataset, but that doesn't make any sense. Datasets contain graphs. You can't shove an entire dataset into a graph.
Are you trying to extract a particular graph from each of these datasets to insert into another? Perhaps you can tell us a bit more about what you are trying to accomplish here, and we can help you find out how to do that. ajs6f > On Jan 16, 2019, at 4:25 AM, Svensson, Lars <[email protected]> wrote: > > Greetings, > > I have several TDB2 datasets that I want to expose as named graphs and as a > joint dataset. My basic idea is to have each TDB2 dataset as its own graph > and then a joint dataset combining all graphs with the default graph being > the union of all named graphs. My configuration is: > > @prefix fuseki: <http://jena.apache.org/fuseki#> . > @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . > @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . > @prefix tdb2: <http://jena.hpl.hp.com/2016/tdb#> . > @prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> . > @prefix : <#> . > > <#service1> rdf:type fuseki:Service ; > fuseki:name "/dnb" ; # http://host:port/dnb > fuseki:serviceQuery "query" ; # SPARQL query service > fuseki:serviceReadGraphStore "data" ; # SPARQL Graph store protocol > (read only) > fuseki:dataset <#dnb> ; > . > > <#dnb> a ja:RDFDataset ; > tdb2:unionDefaultGraph true ; > ja:namedGraph [ > ja:graphName <https://d-nb.info/datasets/authorities#dataset> ; > ja:graph <#authorities> > ]; > ja:namedGraph [ > ja:graphName <https://d-nb.info/datasets/bib#dataset> ; > ja:graph <#bib> > ]; > ja:namedGraph [ > ja:graphName <https://d-nb.info/datasets/dnb-all#dataset> ; > ja:graph <#dnb-all> > ]; > ja:namedGraph [ > ja:graphName <https://d-nb.info/datasets/zdb#dataset> ; > ja:graph <#zdb> > ]; > . > <#authorities> a tdb2:GraphTDB ; > tdb2:dataset <#dataset-authorities> . > <#bib> a tdb2:GraphTDB ; > tdb2:dataset <#dataset-bib> . > <#dnb-all> a tdb2:GraphTDB ; > tdb2:dataset <#dataset-dnb-all> . > <#zdb> a tdb2:GraphTDB ; > tdb2:dataset <#dataset-zdb> . > > <#dataset-authorites> a tdb2:DatasetTDB ; > tdb2:location "/home/svensson/fuseki-data/dnb/authorities/" . > <#dataset-bib> a tdb2:DatasetTDB ; > tdb2:location "/home/svensson/fuseki-data/dnb/bib/" . > <#dataset-dnb-all> a tdb2:DatasetTDB ; > tdb2:location "/home/svensson/fuseki-data/dnb/dnb-all/" . > <#dataset-zdb> a tdb2:DatasetTDB ; > tdb2:location "/home/svensson/fuseki-data/dnb/zdb/" . > > When I start Fuseki, I get the following error message: > > [2019-01-15 11:14:13] Server ERROR Exception in initialization: the root > file:///home/svensson/apache-jena-fuseki-3.10.0/run/configuration/service1.ttl#authorities > has no most specific type that is a subclass of ja:Object > [2019-01-15 11:14:13] WebAppContext WARN Failed startup of context > o.e.j.w.WebAppContext@46044faa{Apache Jena Fuseki > Server,/,file:///home/svensson/apache-jena-fuseki-3.10.0/webapp/,UNAVAILABLE} > org.apache.jena.assembler.exceptions.NoSpecificTypeException: the root > file:///home/svensson/apache-jena-fuseki-3.10.0/run/configuration/service1.ttl#authorities > has no most specific type that is a subclass of ja:Object > doing: > root: > file:///home/svensson/apache-jena-fuseki-3.10.0/run/configuration/service1.ttl#dnb > with type: http://jena.hpl.hp.com/2005/11/Assembler#RDFDataset assembler > class: class org.apache.jena.sparql.core.assembler.DatasetAssembler > > Have I missed something obvious? > > Thanks in advance, > > Lars
