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.algorithms.pattern;
020
021import java.util.Arrays;
022import java.util.Comparator;
023import java.util.List;
024
025import org.semanticweb.owlapi.model.OWLClassExpression;
026import org.semanticweb.owlapi.util.OWLObjectTypeIndexProvider;
027
028import uk.ac.manchester.cs.owl.owlapi.OWLClassExpressionImpl;
029import uk.ac.manchester.cs.owl.owlapi.OWLClassImpl;
030import uk.ac.manchester.cs.owl.owlapi.OWLObjectAllValuesFromImpl;
031import uk.ac.manchester.cs.owl.owlapi.OWLObjectComplementOfImpl;
032import uk.ac.manchester.cs.owl.owlapi.OWLObjectExactCardinalityImpl;
033import uk.ac.manchester.cs.owl.owlapi.OWLObjectHasValueImpl;
034import uk.ac.manchester.cs.owl.owlapi.OWLObjectIntersectionOfImpl;
035import uk.ac.manchester.cs.owl.owlapi.OWLObjectMaxCardinalityImpl;
036import uk.ac.manchester.cs.owl.owlapi.OWLObjectMinCardinalityImpl;
037import uk.ac.manchester.cs.owl.owlapi.OWLObjectSomeValuesFromImpl;
038import uk.ac.manchester.cs.owl.owlapi.OWLObjectUnionOfImpl;
039
040public class OWLClassExpressionOrderingComparator implements Comparator<OWLClassExpression> {
041
042        private static final List<Class<? extends OWLClassExpressionImpl>> ordering = Arrays.asList(
043                        OWLClassImpl.class,
044                        OWLObjectSomeValuesFromImpl.class, 
045                        OWLObjectAllValuesFromImpl.class,
046                        OWLObjectComplementOfImpl.class,
047                        OWLObjectIntersectionOfImpl.class,
048                        OWLObjectUnionOfImpl.class,
049                        OWLObjectHasValueImpl.class,
050                        OWLObjectMinCardinalityImpl.class,
051                        OWLObjectMaxCardinalityImpl.class,
052                        OWLObjectExactCardinalityImpl.class
053                        );
054        
055        private final OWLObjectTypeIndexProvider indexProvider = new OWLObjectTypeIndexProvider();
056
057        @Override
058        public int compare(OWLClassExpression o1, OWLClassExpression o2) {
059                int diff = ordering.indexOf(o1.getClass()) - ordering.indexOf(o2.getClass());
060                if(diff == 0){
061                        return o1.compareTo(o2);
062                } else {
063                        return diff;
064                }
065        }
066
067}