Re: Apache Jena

[Andy Seaborne]

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