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Add Base IRI to objects with relative IRIs #45

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Add Base IRI to objects with relative IRIs #45

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23 changes: 22 additions & 1 deletion src/main/java/be/ugent/rml/Executor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -229,6 +229,27 @@ private void generateQuad(ProvenancedTerm subject, ProvenancedTerm predicate, Pr


if (subject != null && predicate != null & object != null) {
if (object.getTerm() instanceof NamedNode) {
String iri = ((NamedNode) object.getTerm()).getValue();
if (Utils.isRelativeIRI(iri)) {
// Check the base IRI to see if we can use it to turn the IRI into an absolute one.
if (this.baseIRI == null) {
logger.error("The base IRI is null, so relative IRI of object cannot be turned in to absolute IRI. Skipped.");
return;
} else {
logger.debug("The IRI of object is made absolute via base IRI.");
iri = this.baseIRI + iri;

// Check if the new absolute IRI is valid.
if (Utils.isValidIRI(iri)) {
object = new ProvenancedTerm(new NamedNode(iri), object.getMetadata());
} else {
logger.error("The object \"" + iri + "\" is not a valid IRI. Skipped.");
return;
}
}
}
}
this.resultingQuads.addQuad(subject.getTerm(), predicate.getTerm(), object.getTerm(), g);
}
}
Expand Down Expand Up @@ -362,4 +383,4 @@ public static String getNewBlankNodeID() {
public List<Term> getTriplesMaps() {
return initializer.getTriplesMaps();
}
}
}