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/*
* This file is part of the OWL API.
*
* The contents of this file are subject to the LGPL License, Version 3.0.
*
* Copyright (C) 2011, The University of Manchester
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
*
* Alternatively, the contents of this file may be used under the terms of the Apache License, Version 2.0
* in which case, the provisions of the Apache License Version 2.0 are applicable instead of those above.
*
* Copyright 2011, The University of Manchester
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.semanticweb.owlapi;/*
* Copyright (C) 2007, University of Manchester
*
* Modifications to the initial code base are copyright of their
* respective authors, or their employers as appropriate. Authorship
* of the modifications may be determined from the ChangeLog placed at
* the end of this file.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.semanticweb.owlapi.model.AddAxiom;
import org.semanticweb.owlapi.model.OWLClass;
import org.semanticweb.owlapi.model.OWLClassExpression;
import org.semanticweb.owlapi.model.OWLDataFactory;
import org.semanticweb.owlapi.model.OWLEquivalentClassesAxiom;
import org.semanticweb.owlapi.model.OWLObjectIntersectionOf;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLOntologyChange;
import org.semanticweb.owlapi.model.RemoveAxiom;
import org.semanticweb.owlapi.util.OWLClassExpressionVisitorAdapter;
/**
* Author: Matthew Horridge
* The University Of Manchester
* Bio-Health Informatics Group
* Date: 23-Jul-2007
*
* This composite change will convert a defined class to a primitive class by replacing equivalent classes
* axioms where the class in question is a class in the equivalent classes axioms to a set of subclass axioms
* whose superclasses are the set of classes which were originally equivalent to the class in question.
*
* More formally, for a given class A, a set of ontologies S, and a target ontology T, this composite change
* will remove all equivalent axioms from each ontology O in S where the equivalent class axiom contains A
* as a 'top level' class (e.g. EquivalentClasses(A, C, D)). For each class, D, that was made equivalent to A via
* an equivalent classes axiom, a subclass axiom SubClassOf(A, D) will be added to the target ontology T.
*
* This change supports a common pattern of working, where a class is converted from a
* defined class to a primitive class.
*/
public class ConvertEquivalentClassesToSuperClasses extends AbstractCompositeOntologyChange {
private final OWLOntology targetOntology;
private final OWLClass cls;
private final Set ontologies;
private final boolean splitIntersections;
private List changes;
/**
* @param ontologies the ontologies to use
* @param dataFactory the data factory
* @param cls the class to convert
* @param targetOntology the target ontology
* @param splitIntersections whether or not intersections should be split
*/
public ConvertEquivalentClassesToSuperClasses(OWLDataFactory dataFactory, OWLClass cls, Set ontologies,
OWLOntology targetOntology, boolean splitIntersections) {
super(dataFactory);
this.targetOntology = targetOntology;
this.cls = cls;
this.ontologies = ontologies;
this.splitIntersections = splitIntersections;
generateChanges();
}
private void generateChanges() {
changes = new ArrayList();
Set supers = new HashSet();
for (OWLOntology o : ontologies) {
for (OWLEquivalentClassesAxiom ax : o.getEquivalentClassesAxioms(cls)) {
changes.add(new RemoveAxiom(o, ax));
for (OWLClassExpression equivCls : ax.getClassExpressions()) {
supers.addAll(getClassExpressions(equivCls));
}
}
}
supers.remove(cls);
for (OWLClassExpression sup : supers) {
changes.add(new AddAxiom(targetOntology, getDataFactory().getOWLSubClassOfAxiom(cls, sup)));
}
}
private Set getClassExpressions(OWLClassExpression desc) {
final Set result = new HashSet();
if (splitIntersections) {
desc.accept(new OWLClassExpressionVisitorAdapter() {
@Override
public void visit(OWLObjectIntersectionOf intersection) {
for (OWLClassExpression op : intersection.getOperands()) {
result.add(op);
}
}
});
}
if (result.isEmpty()) {
result.add(desc);
}
return result;
}
@Override
public List getChanges() {
return changes;
}
}
