Created
December 18, 2019 08:23
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simple app using rdf4j to export contents of repository to Turtle file, with blank nodes inlined
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| import org.eclipse.rdf4j.query.QueryResults; | |
| import org.eclipse.rdf4j.repository.Repository; | |
| import org.eclipse.rdf4j.repository.RepositoryConnection; | |
| import org.eclipse.rdf4j.repository.sail.SailRepository; | |
| import org.eclipse.rdf4j.rio.RDFFormat; | |
| import org.eclipse.rdf4j.rio.RDFWriter; | |
| import org.eclipse.rdf4j.rio.Rio; | |
| import org.eclipse.rdf4j.rio.helpers.BasicParserSettings; | |
| import org.eclipse.rdf4j.rio.helpers.BasicWriterSettings; | |
| import org.eclipse.rdf4j.sail.memory.MemoryStore; | |
| import java.io.IOException; | |
| public class App | |
| { | |
| public static void main( String[] args ) throws IOException { | |
| Repository rep = new SailRepository(new MemoryStore()); | |
| try (RepositoryConnection conn = rep.getConnection()) { | |
| conn.add(App.class.getResourceAsStream("/artists_data.ttl"), "", RDFFormat.TURTLE); | |
| conn.add(App.class.getResourceAsStream("/artists_data_comp.ttl"), "", RDFFormat.TURTLE); | |
| RDFWriter writer = Rio.createWriter(RDFFormat.TURTLE, System.out); | |
| // use pretty-printing (nice indentation) | |
| writer.getWriterConfig().set(BasicWriterSettings.PRETTY_PRINT, true); | |
| // inline blank nodes where possible | |
| writer.getWriterConfig().set(BasicWriterSettings.INLINE_BLANK_NODES, true); | |
| conn.export(writer); | |
| } | |
| } | |
| } |
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| @prefix ex: <https://ax1tpschgs.proxynodejs.usequeue.com/> . | |
| @prefix foaf: <https://o6sof3tfg6.proxynodejs.usequeue.com/foaf/0.1/> . | |
| @prefix rdf: <https://nt6nqxrxfq.proxynodejs.usequeue.com/1999/02/22-rdf-syntax-ns#> . | |
| @prefix rdfs: <https://nt6nqxrxfq.proxynodejs.usequeue.com/2000/01/rdf-schema#> . | |
| ex:Picasso a ex:Artist, foaf:Person; | |
| ex:creatorOf ex:crossedArms, ex:guernica, ex:maJolie, ex:weepingWoman; | |
| ex:homeAddress [ | |
| ex:birthCity "Malaga"; | |
| ex:city "Madrid"; | |
| ex:country "Spain"; | |
| ex:street "31 Art Gallery" | |
| ], [ | |
| ex:city "Madrid"; | |
| ex:country "Spain"; | |
| ex:street "31 Art Gallery" | |
| ]; | |
| foaf:firstName "Pablo"; | |
| foaf:surname "Picasso" . | |
| ex:VanGogh a ex:Artist, foaf:Person; | |
| ex:creatorOf ex:lumberSale, ex:minersInTheSnow, ex:potatoEaters, ex:starryNight, ex:sundayEindhoven, | |
| ex:sunflowers; | |
| ex:homeAddress [ | |
| ex:city "Zundert"; | |
| ex:country "Netherlands"; | |
| ex:street "12 Rijsbergen" | |
| ]; | |
| foaf:firstName "Vincent"; | |
| foaf:surname "van Gogh" . | |
| ex:guernica a ex:Painting; | |
| ex:paintingTechnique ex:oil; | |
| ex:technique "oil on canvas"; | |
| rdfs:label "Guernica" . | |
| ex:maJolie a ex:Painting; | |
| ex:paintingTechnique ex:oil; | |
| rdfs:label "Ma Jolie" . | |
| ex:crossedArms a ex:Painting; | |
| ex:paintingTechnique ex:watercolor; | |
| rdfs:label "Man with crossed arms" . | |
| ex:sundayEindhoven a ex:Painting; | |
| ex:paintingTechnique ex:watercolor; | |
| rdfs:label "A Sunday in Eindhoven" . | |
| ex:starryNight a ex:Painting; | |
| ex:paintingTechnique ex:oil; | |
| rdfs:label "Starry Night" . | |
| ex:sunflowers a ex:Painting; | |
| ex:paintingTechnique ex:oil; | |
| rdfs:label "Sunflowers" . | |
| ex:potatoEaters a ex:Painting; | |
| ex:paintingTechnique ex:oil; | |
| rdfs:label "The Potato Eaters" . | |
| ex:minersInTheSnow a ex:Painting; | |
| ex:paintingTechnique ex:watercolor; | |
| rdfs:label "Miners in the Snow: Winter" . | |
| ex:paintingTechnique a rdfs:Class . | |
| ex:oil a rdfs:class; | |
| rdfs:subClassOf ex:paintingTechnique . | |
| ex:acrylic a rdfs:Class; | |
| rdfs:subClassOf ex:paintingTechnique . | |
| ex:watercolor a rdfs:Class; | |
| rdfs:subClassOf ex:paintingTechnique . | |
| ex:weepingWoman a ex:Painting; | |
| ex:technique "oil on canvas"; | |
| rdfs:label "The weeping woman" . | |
| ex:lumberSale a ex:Painting; | |
| ex:technique "watercolor"; | |
| rdfs:label "Lumber Sale" . |
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