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Fix relative IRI resolution in RDF/XML #300

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Merged
Ostrzyciel merged 1 commit into from
Jul 22, 2026
Merged

Fix relative IRI resolution in RDF/XML #300

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8 changes: 7 additions & 1 deletion src/main/scala/eu/neverblink/jelly/cli/util/jena/riot/RiotParserUtil.scala
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
package eu.neverblink.jelly.cli.util.jena.riot

import eu.neverblink.jelly.cli.command.rdf.util.RdfFormat
import org.apache.jena.irix.IRIs
import org.apache.jena.riot.lang.LabelToNode
import org.apache.jena.riot.{RDFParser, RDFParserRegistry, RIOT}
import org.apache.jena.riot.system.StreamRDF
Expand All @@ -18,9 +19,14 @@ object RiotParserUtil:
): Unit = {
// Only really enable IRI resolution if the format supports it
if resolveIris && format.supportsBaseIri then
// Parser with full IRI resolution
// Parser with full IRI resolution.
// We set the base explicitly to the system base (the current working directory), which is
// what Jena uses by default for stream-based Turtle/TriG parsing. Without this, readers that
// do their own base handling (notably RDF/XML via ARP) receive a null base and fail to
// resolve relative IRIs (e.g. "#foo"), throwing "Relative URI encountered".
RDFParser.source(source)
.lang(format.jenaLang)
.base(IRIs.getBaseStr)
.labelToNode(LabelToNode.createUseLabelAsGiven())
.checking(false)
.strict(false)
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22 changes: 22 additions & 0 deletions src/test/scala/eu/neverblink/jelly/cli/command/rdf/RdfToJellySpec.scala
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Expand Up @@ -8,6 +8,7 @@ import eu.neverblink.jelly.core.proto.v1.{LogicalStreamType, PhysicalStreamType,
import eu.neverblink.jelly.core.JellyOptions
import eu.neverblink.jelly.core.proto.google.v1 as google
import eu.neverblink.jelly.core.utils.IoUtils
import org.apache.jena.irix.IRIs
import org.apache.jena.rdf.model.{Model, ModelFactory}
import org.apache.jena.riot.{RDFLanguages, RDFParser}
import org.apache.jena.sparql.core.DatasetGraphFactory
Expand Down Expand Up @@ -934,5 +935,26 @@ class RdfToJellySpec extends AnyWordSpec with TestFixtureHelper with Matchers:
stmts.head.getPredicate.getURI should be("http://example.org/p")
stmts.head.getObject.asResource().getURI should be("b")
}

"IRI resolution enabled (default), input RDF/XML stream with relative IRIs" in
withEmptyJellyFile { j =>
val input =
"""<?xml version="1.0" encoding="utf-8"?>
|<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
| <rdf:Description rdf:about="#relative">
| <__g0:test.org xmlns:__g0="http://">test</__g0:test.org>
| </rdf:Description>
|</rdf:RDF>""".stripMargin
RdfToJelly.setStdIn(ByteArrayInputStream(input.getBytes))
RdfToJelly.runTestCommand(
List("rdf", "to-jelly", "--in-format", RdfFormat.RdfXml.cliOptions.head, "--to", j),
)
val content = translateJellyBack(new FileInputStream(j))
val stmts = content.listStatements().asScala.toSeq
stmts.size should be(1)
stmts.head.getSubject.getURI should be(s"${IRIs.getBaseStr}#relative")
stmts.head.getPredicate.getURI should be("http://test.org")
stmts.head.getObject.asLiteral().getString should be("test")
}
}
}
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