[jira] [Commented] (JENA-1422) tdb2.tdbloader fails when trying to load to named graph

["Andy Seaborne (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JENA-1422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16251219#comment-16251219 ] 

Andy Seaborne commented on JENA-1422:
-------------------------------------

The cast is a legacy mistake copied over from TDB1.

If it's removed, the code will hit {{NotImplemented()}} in {{tdb2.tdblaoder.TDBLoader.load(Graph)}}.

Workaround for now, convert the file to a quads form with a named graph, e.g. TriG, and load that.


> tdb2.tdbloader fails when trying to load to named graph
> -------------------------------------------------------
>
>                 Key: JENA-1422
>                 URL: https://issues.apache.org/jira/browse/JENA-1422
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: TDB2
>    Affects Versions: Jena 3.5.0
>         Environment: Ubuntu 16.04
>            Reporter: Osma Suominen
>
> I'm using Jena 3.5.0 and testing the new TDB2 store. I tried to load a dataset directly into a named graph using tdb2.tdbloader.
> This is my dataset:
> {noformat}
> <http://example.org/s> <http://example.org/p> <http://example.org/o> .
> {noformat}
> Loading into the default graph works:
> {noformat}
> $ tdb2.tdbloader --loc=defaultgraph example.nt 
> 09:16:22 INFO  TDB2                 :: Finished: 1 example.nt 0,05s (Avg: 19)
> {noformat}
> Loading into a named graph using --graph option throws an exception:
> {noformat}
> $ tdb2.tdbloader --graph=http://example.org/g --loc=namedgraph example.nt 
> java.lang.ClassCastException: org.apache.jena.tdb2.store.GraphViewSwitchable cannot be cast to org.apache.jena.tdb2.store.GraphTDB
> 	at tdb2.cmdline.CmdTDBGraph.getGraph(CmdTDBGraph.java:70)
> 	at tdb2.tdbloader.loadNamedGraph(tdbloader.java:123)
> 	at tdb2.tdbloader.exec(tdbloader.java:113)
> 	at jena.cmd.CmdMain.mainMethod(CmdMain.java:93)
> 	at jena.cmd.CmdMain.mainRun(CmdMain.java:58)
> 	at jena.cmd.CmdMain.mainRun(CmdMain.java:45)
> 	at tdb2.tdbloader.main(tdbloader.java:54)
> {noformat}



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