Hello,
I have a model which contains a reified statement. Depending on what URLs I
use for resources, I get different outputs.
I would be thankful if someone could explain if this behavior is valid or a
bug.
Thanks.
Sample code:
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public class JenaReifiedProblem {
private static final String someBase = "http://someserver/myapp";;
public static void main(String[] args) {
generate1("http://localhost:8080";);
System.out.println("---------");
generate1("http://localhost:8080/app";);
System.out.println("---------");
}
public static void generate1(String serverURL) {
Model model = ModelFactory.createDefaultModel();
model.setNsPrefix("dcterms", DCTerms.NS);
Resource agent = model.createResource(serverURL+"/agent1", DCTerms.Agent);
Resource fileFormat = model.createResource("http://formatsite.org/fileformat";,
DCTerms.FileFormat);
fileFormat.addProperty(DCTerms.title, "TXT");
agent.addProperty(DCTerms.format, fileFormat);
agent.addProperty(DCTerms.relation,
model.createResource(serverURL+"/agent2"));
ReifiedStatement rs =
agent.getProperty(DCTerms.relation).createReifiedStatement(someBase+"#relationship");
rs.addProperty(DCTerms.title, "My releationship");
model.write(System.out, "RDF/XML-ABBREV", someBase);
}
}
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Output:
********************************************
<rdf:RDF
xmlns:dcterms="http://purl.org/dc/terms/";
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";>
<dcterms:Agent rdf:about="http://localhost:8080/agent1";>
<dcterms:relation rdf:ID="relationship" rdf:resource="
http://localhost:8080/agent2"/>
<dcterms:format>
<dcterms:FileFormat rdf:about="http://formatsite.org/fileformat";>
<dcterms:title>TXT</dcterms:title>
</dcterms:FileFormat>
</dcterms:format>
</dcterms:Agent>
<rdf:Statement rdf:about="#relationship">
<dcterms:title>My releationship</dcterms:title>
</rdf:Statement>
</rdf:RDF>
---------
<rdf:RDF
xmlns:dcterms="http://purl.org/dc/terms/";
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";>
<dcterms:FileFormat rdf:about="http://formatsite.org/fileformat";>
<dcterms:title>TXT</dcterms:title>
</dcterms:FileFormat>
<rdf:Statement rdf:ID="relationship">
<rdf:subject>
<dcterms:Agent rdf:about="http://localhost:8080/app/agent1";>
<dcterms:relation rdf:resource="http://localhost:8080/app/agent2"/>
<dcterms:format rdf:resource="http://formatsite.org/fileformat"/>
</dcterms:Agent>
</rdf:subject>
<rdf:predicate rdf:resource="http://purl.org/dc/terms/relation"/>
<rdf:object rdf:resource="http://localhost:8080/app/agent2"/>
<dcterms:title>My releationship</dcterms:title>
</rdf:Statement>
</rdf:RDF>
---------
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