Constraint causing java exception when loading

Support
1

The following constraint:

@prefix carnot: <http://Carnot.org/> .

carnot:Employee rdfs:subClassOf
	[ a owl:Restriction ;
		owl:onProperty carnot:employeeDepartment;
		owl:maxQualifiedCardinality "1"^^xsd:nonNegativeInteger ;
		owl:onClass carnot:Department
	] .

causes the following exception:

WARN  2018-02-26 09:51:16,393 [RDFStreamProcessor-0] com.complexible.common.rdf.rio.RDFStreamProcessor:setException(584): Error during loading RDF/XMLStream:
Content is not allowed in prolog. [line 1, column 1]
WARN  2018-02-26 09:51:16,396 [RDFStreamProcessor-0] com.complexible.common.rdf.rio.RDFStreamProcessor:setException(591): Parse process creator:
java.lang.Exception: null
        at com.complexible.common.rdf.rio.RDFStreamProcessor.<init>(RDFStreamProcessor.java:129) ~[stardog-utils-rdf-5.0.1.jar:?]
        at com.complexible.common.rdf.rio.RDFStreamProcessor.create(RDFStreamProcessor.java:105) ~[stardog-utils-rdf-5.0.1.jar:?]
        at com.complexible.common.rdf.rio.RDFStreamProcessor.iteration(RDFStreamProcessor.java:110) ~[stardog-utils-rdf-5.0.1.jar:?]
        at com.complexible.common.rdf.impl.StreamStatementIterator.<init>(StreamStatementIterator.java:52) ~[stardog-utils-rdf-5.0.1.jar:?]
        at com.complexible.common.rdf.impl.OneTimeStreamStatementSource.statements(OneTimeStreamStatementSource.java:53) ~[stardog-utils-rdf-5.0.1.jar:?]
        at com.complexible.stardog.protocols.http.icv.client.ICVHttpConnection.handleConstraintChange(ICVHttpConnection.java:110) ~[stardog-icv-protocols-http-client-5.0.1.jar:?]
        at com.complexible.stardog.icv.api.AbstractICVConnection$ValidatorIO.stream(AbstractICVConnection.java:230) ~[stardog-icv-api_snarl-5.0.1.jar:?]
        at com.complexible.stardog.icv.api.AbstractICVConnection$ValidatorIO.file(AbstractICVConnection.java:255) ~[stardog-icv-api_snarl-5.0.1.jar:?]
        at com.complexible.stardog.icv.cli.ICVWithFiles.readConstraints(ICVWithFiles.java:174) ~[stardog-icv-cli-5.0.1.jar:?]
        at com.complexible.stardog.icv.cli.ICVWithFiles.addConstraints(ICVWithFiles.java:96) ~[stardog-icv-cli-5.0.1.jar:?]
        at com.complexible.stardog.icv.cli.ICVAdd.execute(ICVAdd.java:61) ~[stardog-icv-cli-5.0.1.jar:?]
        at com.complexible.stardog.cli.impl.ConnectionCommand.call(ConnectionCommand.java:61) ~[stardog-cli-5.0.1.jar:?]
        at com.complexible.stardog.cli.CLIBase.execute(CLIBase.java:55) ~[stardog-cli-5.0.1.jar:?]
        at com.complexible.stardog.cli.admin.CLI.main(CLI.java:182) ~[stardog-cli-5.0.1.jar:?]
WARN  2018-02-26 09:51:16,403 [RDFStreamProcessor-4] com.complexible.common.rdf.rio.RDFStreamProcessor:setException(587): Error during loading TurtleStream: UT000034: Stream is closed
java.io.IOException: UT000034: Stream is closed

. . .

2

It looks like your file is in turtle but it’s trying to read it as rdf/xml. If you don’t tell it what the format is it will try to guess it from the extension and defaults to rdf/xml if it can’t tell. What is the name of your file? Did you name it something like myConstraints.icv?

3

I named it Constraints.rdf
should it be Constraints.icv

4

It’s guessing that it’s rdf/xml because of the .rdf extension. You can name it anything you’d like but you’ll need to include the -f flag in “stardog data add” and give it the format. TURTLE, RDF/XML, etc. Or you can rename it to something that Stardog will correctly recognize, .ttl in your case.

5

That worked.
Thanks soo much.
phil