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https://issues.apache.org/jira/browse/JENA-2351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17712842#comment-17712842
]
Andy Seaborne commented on JENA-2351:
-------------------------------------
Simpler:
{code:java}
Model model = QueryExecution
.service("https://dbpedia.org/sparql/";)
.query("CONSTRUCT WHERE
{<http://dbpedia.org/resource/Neutron_Star_Interior_Composition_Explorer>
<http://xmlns.com/foaf/0.1/depiction> ?o}")
.construct();
RDFDataMgr.write(System.out, model, Lang.NT);
{code}
There is a bug in the dbpedia server - it does not accept {{CONSTRUCTWHERE}}
(no space) which is legal. White space between tokens is not required unless it
is needed to disambiguate.
> Newline (U+000A) in IRIs not escaped during NT/TTL/NQ/TRIG serialization
> -------------------------------------------------------------------------
>
> Key: JENA-2351
> URL: https://issues.apache.org/jira/browse/JENA-2351
> Project: Apache Jena
> Issue Type: Bug
> Components: RIOT
> Affects Versions: Jena 4.7.0
> Reporter: Jan Martin Keil
> Priority: Major
>
> [Newline characters (U+000A) in
> IRIs|https://github.com/dbpedia/extraction-framework/issues/748] are not
> escaped during the serialization of a model or datasets into a format of the
> turtle family. This results in invalid files, which Jena is not able to read
> anymore. Please not the following tests:
> {code:java}
> import org.apache.jena.query.Dataset;
> import org.apache.jena.query.DatasetFactory;
> import org.apache.jena.rdf.model.*;
> import org.apache.jena.riot.Lang;
> import org.apache.jena.riot.RDFDataMgr;
> import org.junit.jupiter.api.Test;
> import java.io.File;
> import java.io.FileInputStream;
> import java.io.FileOutputStream;
> import java.io.IOException;
> public class Example {
> @Test
> public void rdfXml() throws IOException {
> Property someProperty =
> ResourceFactory.createProperty("http://example.org/property";);
> Model model = ModelFactory.createDefaultModel();
>
> model.createResource("http://example.org/aaa/\nbbb";).addProperty(someProperty,"a
> string");
> System.out.println("\nRDF/XML:\n");
> model.write(System.out,"RDF/XML");
> // test write and read
> File file = File.createTempFile("example",".rdf");
> model.write(new FileOutputStream(file),"RDF/XML");
> ModelFactory.createDefaultModel().read(new
> FileInputStream(file),"","RDF/XML");
> }
> @Test
> public void ttl() throws IOException {
> Property someProperty =
> ResourceFactory.createProperty("http://example.org/property";);
> Model model = ModelFactory.createDefaultModel();
>
> model.createResource("http://example.org/aaa/\nbbb";).addProperty(someProperty,"a
> string");
> System.out.println("\nTTL:\n");
> model.write(System.out,"TTL");
> // test write and read
> File file = File.createTempFile("example",".ttl");
> model.write(new FileOutputStream(file),"TTL");
> ModelFactory.createDefaultModel().read(new
> FileInputStream(file),"","TTL");
> }
> @Test
> public void nTriples() throws IOException {
> Property someProperty =
> ResourceFactory.createProperty("http://example.org/property";);
> Model model = ModelFactory.createDefaultModel();
>
> model.createResource("http://example.org/aaa/\nbbb";).addProperty(someProperty,"a
> string");
> System.out.println("\nN-TRIPLE:\n");
> model.write(System.out,"N-TRIPLE");
> // test write and read
> File file = File.createTempFile("example",".nt");
> model.write(new FileOutputStream(file),"N-TRIPLE");
> ModelFactory.createDefaultModel().read(new
> FileInputStream(file),"","N-TRIPLE");
> }
> @Test
> public void nq() throws IOException {
> Property someProperty =
> ResourceFactory.createProperty("http://example.org/property";);
> Model model1 = ModelFactory.createDefaultModel();
>
> model1.createResource("http://example.org/aaa/\nbbb";).addProperty(someProperty,"a
> string");
> Model model2 = ModelFactory.createDefaultModel();
>
> model2.createResource("http://example.org/aaa/\nbbb";).addProperty(someProperty,"a
> string");
> Dataset dataset = DatasetFactory.createGeneral();
> dataset.setDefaultModel(model1);
> dataset.addNamedModel("http://example.org/namedGraph",model2);
> System.out.println("\nNQ:\n");
> RDFDataMgr.write(System.out, dataset, Lang.NQ) ;
> // test write and read
> File file = File.createTempFile("example", ".nq");
> RDFDataMgr.write(new FileOutputStream(file), dataset, Lang.NQ) ;
> RDFDataMgr.read(DatasetFactory.createGeneral(), new
> FileInputStream(file), Lang.NQ) ;
> }
> @Test
> public void trig() throws IOException {
> Property someProperty =
> ResourceFactory.createProperty("http://example.org/property";);
> Model model1 = ModelFactory.createDefaultModel();
>
> model1.createResource("http://example.org/aaa/\nbbb";).addProperty(someProperty,"a
> string");
> Model model2 = ModelFactory.createDefaultModel();
>
> model2.createResource("http://example.org/aaa/\nbbb";).addProperty(someProperty,"a
> string");
> Dataset dataset = DatasetFactory.createGeneral();
> dataset.setDefaultModel(model1);
> dataset.addNamedModel("http://example.org/namedGraph",model2);
> System.out.println("\nTRIG:\n");
> RDFDataMgr.write(System.out, dataset, Lang.TRIG) ;
> // test write and read
> File file = File.createTempFile("example", ".trig");
> RDFDataMgr.write(new FileOutputStream(file), dataset, Lang.TRIG) ;
> RDFDataMgr.read(DatasetFactory.createGeneral(), new
> FileInputStream(file), Lang.TRIG) ;
> }
> }
> {code}
> Outputs (stack traces truncated):
> {code:java}
> N-TRIPLE:
> <http://example.org/aaa/
> bbb> <http://example.org/property> "a string" .
> Apr. 15, 2023 10:01:45 PM
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorLogger logError
> SCHWERWIEGEND: [line: 2, col: 1 ] Broken IRI (newline):
> http://example.org/aaa/
> org.apache.jena.riot.RiotException: [line: 2, col: 1 ] Broken IRI (newline):
> http://example.org/aaa/
> at
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.fatal(ErrorHandlerFactory.java:163)
> ...
> {code}
> {code:java}
> RDF/XML:
> <rdf:RDF
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
> xmlns:j.0="http://example.org/";>
> <rdf:Description rdf:about="http://example.org/aaa/
bbb";>
> <j.0:property>a string</j.0:property>
> </rdf:Description>
> </rdf:RDF>
> {code}
> {code:java}
> NQ:
> <http://example.org/aaa/
> bbb> <http://example.org/property> "a string" .
> <http://example.org/aaa/
> bbb> <http://example.org/property> "a string" <http://example.org/namedGraph>
> .
> Apr. 15, 2023 10:01:45 PM
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorLogger logError
> SCHWERWIEGEND: [line: 2, col: 1 ] Broken IRI (newline):
> http://example.org/aaa/
> org.apache.jena.riot.RiotException: [line: 2, col: 1 ] Broken IRI (newline):
> http://example.org/aaa/
> at
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.fatal(ErrorHandlerFactory.java:163)
> ...
> {code}
> {code:java}
> TTL:
> <http://example.org/aaa/
> bbb> <http://example.org/property> "a string" .
> Apr. 15, 2023 10:01:45 PM
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorLogger logError
> SCHWERWIEGEND: [line: 2, col: 1 ] Broken IRI (newline):
> http://example.org/aaa/
> org.apache.jena.riot.RiotException: [line: 2, col: 1 ] Broken IRI (newline):
> http://example.org/aaa/
> at
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.fatal(ErrorHandlerFactory.java:163)
> ...
> {code}
> {code:java}
> TRIG:
> <http://example.org/aaa/
> bbb> <http://example.org/property> "a string" .
> <http://example.org/namedGraph> {
> <http://example.org/aaa/
> bbb> <http://example.org/property> "a string" .
> }
> Apr. 15, 2023 10:01:45 PM
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorLogger logError
> SCHWERWIEGEND: [line: 2, col: 1 ] Broken IRI (newline):
> http://example.org/aaa/
> org.apache.jena.riot.RiotException: [line: 2, col: 1 ] Broken IRI (newline):
> http://example.org/aaa/
> at
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.fatal(ErrorHandlerFactory.java:163)
> ...
> {code}
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