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Posted to users@jena.apache.org by elio hbeich <el...@gmail.com> on 2018/09/21 13:52:16 UTC

Apache Jena

Hello,
I have tried the following code:

  AssetManager mgr = MainActivity.this.getAssets();
   InputStream in = mgr.open("MallOntology.owl");
   Model model = ModelFactory.createDefaultModel();
   model.read(in, "");

and i have get the following error:

Process: com.example.toshiba.myapplication, PID: 4162
    org.apache.jena.shared.JenaException: Failed to create an RDFXMLParser
        at org.apache.jena.rdfxml.xmlinput.impl.RDFXMLParser.create(RDFXMLParser.java:148)
        at org.apache.jena.rdfxml.xmlinput.ARP.<init>(ARP.java:76)
        at org.apache.jena.riot.lang.ReaderRIOTRDFXML.<init>(ReaderRIOTRDFXML.java:64)
        at org.apache.jena.riot.lang.ReaderRIOTRDFXML$Factory.create(ReaderRIOTRDFXML.java:60)
        at org.apache.jena.riot.RDFParser.createReader(RDFParser.java:415)
        at org.apache.jena.riot.RDFParser.createReader(RDFParser.java:409)
        at org.apache.jena.riot.RDFParser.parseNotUri(RDFParser.java:335)
        at org.apache.jena.riot.RDFParser.parse(RDFParser.java:291)
        at org.apache.jena.riot.RDFParserBuilder.parse(RDFParserBuilder.java:500)
        at org.apache.jena.riot.RDFDataMgr.parseFromInputStream(RDFDataMgr.java:870)
        at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:268)
        at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:254)
        at org.apache.jena.riot.adapters.RDFReaderRIOT.read(RDFReaderRIOT.java:69)
        at com.example.toshiba.myapplication.MainActivity$3.onCompleted(MainActivity.java:208)
        at com.facebook.GraphRequest$1.onCompleted(GraphRequest.java:301)
        at com.facebook.GraphRequest$5.run(GraphRequest.java:1380)
        at android.os.Handler.handleCallback(Handler.java:790)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6494)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
     Caused by: java.lang.RuntimeException: Supposedly impossible:


any advice?

Re: Apache Jena

Posted by Andy Seaborne <an...@apache.org>.

On 21/09/18 14:52, elio hbeich wrote:
> Hello,
> I have tried the following code:
> 
>    AssetManager mgr = MainActivity.this.getAssets();
>     InputStream in = mgr.open("MallOntology.owl");
>     Model model = ModelFactory.createDefaultModel();
>     model.read(in, "");
> 
> and i have get the following error:
> 
> Process: com.example.toshiba.myapplication, PID: 4162
>      org.apache.jena.shared.JenaException: Failed to create an RDFXMLParser
>          at org.apache.jena.rdfxml.xmlinput.impl.RDFXMLParser.create(RDFXMLParser.java:148)
>          at org.apache.jena.rdfxml.xmlinput.ARP.<init>(ARP.java:76)
>          at org.apache.jena.riot.lang.ReaderRIOTRDFXML.<init>(ReaderRIOTRDFXML.java:64)
>          at org.apache.jena.riot.lang.ReaderRIOTRDFXML$Factory.create(ReaderRIOTRDFXML.java:60)
>          at org.apache.jena.riot.RDFParser.createReader(RDFParser.java:415)
>          at org.apache.jena.riot.RDFParser.createReader(RDFParser.java:409)
>          at org.apache.jena.riot.RDFParser.parseNotUri(RDFParser.java:335)
>          at org.apache.jena.riot.RDFParser.parse(RDFParser.java:291)
>          at org.apache.jena.riot.RDFParserBuilder.parse(RDFParserBuilder.java:500)
>          at org.apache.jena.riot.RDFDataMgr.parseFromInputStream(RDFDataMgr.java:870)
>          at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:268)
>          at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:254)
>          at org.apache.jena.riot.adapters.RDFReaderRIOT.read(RDFReaderRIOT.java:69)
>          at com.example.toshiba.myapplication.MainActivity$3.onCompleted(MainActivity.java:208)
>          at com.facebook.GraphRequest$1.onCompleted(GraphRequest.java:301)
>          at com.facebook.GraphRequest$5.run(GraphRequest.java:1380)
>          at android.os.Handler.handleCallback(Handler.java:790)
>          at android.os.Handler.dispatchMessage(Handler.java:99)
>          at android.os.Looper.loop(Looper.java:164)
>          at android.app.ActivityThread.main(ActivityThread.java:6494)
>          at java.lang.reflect.Method.invoke(Native Method)
>          at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
>          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
>       Caused by: java.lang.RuntimeException: Supposedly impossible:
> 
> 
> any advice?
> 

The cause

 >       Caused by: java.lang.RuntimeException: Supposedly impossible:

The JenaException is just wrapping up whatever that is.

     Andy