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Added OWL/XML and Manchester syntax as possible output formats.
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106 changes: 106 additions & 0 deletions
106
src/main/java/org/dice_research/enexa/transform/RDF2OntologyTransformator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| package org.dice_research.enexa.transform; | ||
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| import java.io.BufferedInputStream; | ||
| import java.io.File; | ||
| import java.io.FileInputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.io.OutputStream; | ||
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|
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| import org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream; | ||
| import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream; | ||
| import org.apache.commons.compress.utils.IOUtils; | ||
| import org.semanticweb.owlapi.apibinding.OWLManager; | ||
| import org.semanticweb.owlapi.formats.ManchesterSyntaxDocumentFormat; | ||
| import org.semanticweb.owlapi.formats.OWLXMLDocumentFormat; | ||
| import org.semanticweb.owlapi.io.StreamDocumentSource; | ||
| import org.semanticweb.owlapi.model.IRI; | ||
| import org.semanticweb.owlapi.model.OWLDocumentFormat; | ||
| import org.semanticweb.owlapi.model.OWLOntology; | ||
| import org.semanticweb.owlapi.model.OWLOntologyCreationException; | ||
| import org.semanticweb.owlapi.model.OWLOntologyManager; | ||
| import org.semanticweb.owlapi.model.OWLOntologyStorageException; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| public class RDF2OntologyTransformator implements Transformator { | ||
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| private static final Logger LOGGER = LoggerFactory.getLogger(RDF2OntologyTransformator.class); | ||
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| protected OWLOntology ontology; | ||
| protected OWLOntologyManager manager; | ||
| protected OWLDocumentFormat outputFormat; | ||
| protected File outputFile; | ||
| protected OutputStream outputStream; | ||
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| protected RDF2OntologyTransformator(OWLOntology ontology, OWLOntologyManager manager, | ||
| OWLDocumentFormat outputFormat, File outputFile, OutputStream outputStream) { | ||
| super(); | ||
| this.ontology = ontology; | ||
| this.manager = manager; | ||
| this.outputFormat = outputFormat; | ||
| this.outputFile = outputFile; | ||
| this.outputStream = outputStream; | ||
| } | ||
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| public static OWLDocumentFormat getFormatForMediaType(String mediaType) { | ||
| switch (mediaType) { | ||
| case "application/owl+xml": | ||
| return new OWLXMLDocumentFormat(); | ||
| case "text/owl-manchester": | ||
| return new ManchesterSyntaxDocumentFormat(); | ||
| default: | ||
| return null; | ||
| } | ||
| } | ||
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| @Override | ||
| public void close() throws Exception { | ||
| try { | ||
| if (ontology != null) { | ||
| ontology.saveOntology(new OWLXMLDocumentFormat(), outputStream); | ||
| } | ||
| } catch (OWLOntologyStorageException e) { | ||
| throw new IOException("Error while writing the ontology.", e); | ||
| } finally { | ||
| IOUtils.closeQuietly(outputStream); | ||
| } | ||
| } | ||
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| @Override | ||
| public void addFile2Stream(File file, String contentType) throws IOException { | ||
| try { | ||
| String fileName = file.getName(); | ||
| try (InputStream in = new BufferedInputStream(new FileInputStream(file))) { | ||
| InputStream ins = in; | ||
| if (fileName.endsWith(".gz")) { | ||
| ins = new GzipCompressorInputStream(ins); | ||
| } else if (fileName.endsWith(".bz2")) { | ||
| ins = new BZip2CompressorInputStream(ins); | ||
| } | ||
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| LOGGER.info("Adding file {} ...", file.toString()); | ||
| OWLOntology readOnt = manager.loadOntologyFromOntologyDocument(new StreamDocumentSource(ins)); | ||
| manager.addAxioms(ontology, readOnt.getAxioms()); | ||
| } | ||
| } catch (OWLOntologyCreationException e) { | ||
| throw new IOException( | ||
| "Error while reading the ontology \"" + (file == null ? "null" : file.toString()) + "\".", e); | ||
| } | ||
| } | ||
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| public static RDF2OntologyTransformator create(OWLDocumentFormat outputFormat, File outputFile, | ||
| OutputStream outputStream) throws OWLOntologyCreationException { | ||
| OWLOntologyManager manager = OWLManager.createOWLOntologyManager(); | ||
| OWLOntology ontology = manager.createOntology(IRI.create(outputFile)); | ||
| return new RDF2OntologyTransformator(ontology, manager, outputFormat, outputFile, outputStream); | ||
| } | ||
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| public String getOutputFileName() { | ||
| return outputFile.getName(); | ||
| } | ||
|
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| public File getOutputFile() { | ||
| return outputFile; | ||
| } | ||
| } |
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