001/**
002 * Copyright (C) 2007 - 2016, Jens Lehmann
003 *
004 * This file is part of DL-Learner.
005 *
006 * DL-Learner is free software; you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation; either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * DL-Learner is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
018 */
019package org.dllearner.utilities.owl;
020
021import java.io.ByteArrayInputStream;
022import java.io.ByteArrayOutputStream;
023import java.io.IOException;
024
025import org.semanticweb.owlapi.model.OWLOntology;
026import org.semanticweb.owlapi.model.OWLOntologyCreationException;
027import org.semanticweb.owlapi.model.OWLOntologyManager;
028import org.semanticweb.owlapi.model.OWLOntologyStorageException;
029
030/**
031 * Created by IntelliJ IDEA.
032 * User: Chris Shellenbarger
033 * Date: 3/13/12
034 * Time: 6:24 PM
035 * 
036 * A Byte Array based implementation of the OntologyToByteConverter interface.
037 */
038public class SimpleOntologyToByteConverter implements OntologyToByteConverter {
039
040    @Override
041    public byte[] convert(OWLOntology ontology) {
042
043        ByteArrayOutputStream baos = new ByteArrayOutputStream();
044
045        OWLOntologyManager manager = ontology.getOWLOntologyManager();
046        try {
047            manager.saveOntology(ontology, baos);
048            baos.close();
049        } catch (OWLOntologyStorageException | IOException e) {
050            throw new RuntimeException(e);
051        }
052
053        return baos.toByteArray();
054    }
055
056    @Override
057    public  OWLOntology convert(byte[] bytes, OWLOntologyManager manager) {
058
059        ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
060
061        try {
062            OWLOntology ontology = manager.loadOntologyFromOntologyDocument(bais);
063            bais.close();
064            return ontology;
065        } catch (OWLOntologyCreationException | IOException e) {
066            throw new RuntimeException(e);
067        }
068    }
069}