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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 2014, 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.
* 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.debugging;
import static org.semanticweb.owlapi.util.OWLAPIPreconditions.checkNotNull;
import static org.semanticweb.owlapi.util.OWLAPIStreamUtils.add;
import static org.semanticweb.owlapi.util.OWLAPIStreamUtils.asList;
import static org.semanticweb.owlapi.util.OWLAPIStreamUtils.asUnorderedSet;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Stream;
import org.semanticweb.owlapi.model.HasSignature;
import org.semanticweb.owlapi.model.OWLAsymmetricObjectPropertyAxiom;
import org.semanticweb.owlapi.model.OWLAxiom;
import org.semanticweb.owlapi.model.OWLAxiomVisitor;
import org.semanticweb.owlapi.model.OWLClassAssertionAxiom;
import org.semanticweb.owlapi.model.OWLClassExpression;
import org.semanticweb.owlapi.model.OWLDataPropertyAssertionAxiom;
import org.semanticweb.owlapi.model.OWLDataPropertyDomainAxiom;
import org.semanticweb.owlapi.model.OWLDataPropertyRangeAxiom;
import org.semanticweb.owlapi.model.OWLDifferentIndividualsAxiom;
import org.semanticweb.owlapi.model.OWLDisjointClassesAxiom;
import org.semanticweb.owlapi.model.OWLDisjointDataPropertiesAxiom;
import org.semanticweb.owlapi.model.OWLDisjointObjectPropertiesAxiom;
import org.semanticweb.owlapi.model.OWLDisjointUnionAxiom;
import org.semanticweb.owlapi.model.OWLEntity;
import org.semanticweb.owlapi.model.OWLEquivalentClassesAxiom;
import org.semanticweb.owlapi.model.OWLEquivalentDataPropertiesAxiom;
import org.semanticweb.owlapi.model.OWLEquivalentObjectPropertiesAxiom;
import org.semanticweb.owlapi.model.OWLFunctionalDataPropertyAxiom;
import org.semanticweb.owlapi.model.OWLFunctionalObjectPropertyAxiom;
import org.semanticweb.owlapi.model.OWLInverseFunctionalObjectPropertyAxiom;
import org.semanticweb.owlapi.model.OWLInverseObjectPropertiesAxiom;
import org.semanticweb.owlapi.model.OWLIrreflexiveObjectPropertyAxiom;
import org.semanticweb.owlapi.model.OWLNegativeDataPropertyAssertionAxiom;
import org.semanticweb.owlapi.model.OWLNegativeObjectPropertyAssertionAxiom;
import org.semanticweb.owlapi.model.OWLObject;
import org.semanticweb.owlapi.model.OWLObjectPropertyAssertionAxiom;
import org.semanticweb.owlapi.model.OWLObjectPropertyDomainAxiom;
import org.semanticweb.owlapi.model.OWLObjectPropertyRangeAxiom;
import org.semanticweb.owlapi.model.OWLReflexiveObjectPropertyAxiom;
import org.semanticweb.owlapi.model.OWLSameIndividualAxiom;
import org.semanticweb.owlapi.model.OWLSubClassOfAxiom;
import org.semanticweb.owlapi.model.OWLSubDataPropertyOfAxiom;
import org.semanticweb.owlapi.model.OWLSubObjectPropertyOfAxiom;
import org.semanticweb.owlapi.model.OWLSubPropertyChainOfAxiom;
import org.semanticweb.owlapi.model.OWLSymmetricObjectPropertyAxiom;
import org.semanticweb.owlapi.model.OWLTransitiveObjectPropertyAxiom;
import org.semanticweb.owlapi.util.OWLEntityCollector;
/**
* @author Matthew Horridge, The University Of Manchester, Bio-Health Informatics Group
* @since 2.0.0
*/
public class JustificationMap {
private final Set axioms;
private final Set rootAxioms = new HashSet<>();
private final Set usedAxioms = new HashSet<>();
private final Map> map = new LinkedHashMap<>();
private final Map> axiomsByLHS = new LinkedHashMap<>();
private final OWLClassExpression desc;
/**
* Instantiates a new justification map.
*
* @param desc the class expression
* @param axioms the axioms
*/
public JustificationMap(OWLClassExpression desc, Set axioms) {
this.axioms = checkNotNull(axioms, "axioms cannot be null");
this.desc = checkNotNull(desc, "desc cannot be null");
createMap();
}
private void createMap() {
for (OWLAxiom ax : axioms) {
OWLAxiomPartExtractor extractor = new OWLAxiomPartExtractor();
ax.accept(extractor);
Set lhscollected = new HashSet<>();
OWLEntityCollector lhsCollector = new OWLEntityCollector(lhscollected);
extractor.getLHS().forEach(l -> l.accept(lhsCollector));
lhscollected
.forEach(l -> axiomsByLHS.computeIfAbsent(l, x -> new LinkedHashSet<>()).add(ax));
}
buildChildren(desc);
}
protected Stream getAxiomsByLHS(OWLEntity lhs) {
return axiomsByLHS.get(lhs).stream();
}
private void buildChildren(OWLClassExpression seed) {
// Return the axioms that have the entity on the LHS
List result = asList(seed.signature().flatMap(this::getAxiomsByLHS));
usedAxioms.addAll(result);
rootAxioms.addAll(result);
buildChildren(result);
}
private void buildChildren(Collection axiomSet) {
List> axiomChildren = new ArrayList<>();
for (OWLAxiom ax : axiomSet) {
Set children = build(ax);
children.forEach(a -> map.computeIfAbsent(a, x -> new LinkedHashSet<>()).add(ax));
axiomChildren.add(children);
}
axiomChildren.forEach(this::buildChildren);
}
private Set build(OWLAxiom parentAxiom) {
usedAxioms.add(parentAxiom);
OWLAxiomPartExtractor extractor = new OWLAxiomPartExtractor();
parentAxiom.accept(extractor);
return asUnorderedSet(extractor.getRHS().stream().flatMap(HasSignature::signature)
.flatMap(this::getAxiomsByLHS).filter(usedAxioms::add));
}
/**
* Gets the root axioms.
*
* @return the root axioms
*/
public Set getRootAxioms() {
return rootAxioms;
}
/**
* Gets the child axioms.
*
* @param ax the axiom whose children are to be retrieved
* @return children of ax
*/
public Collection getChildAxioms(OWLAxiom ax) {
return map.get(ax);
}
/**
* The Class OWLAxiomPartExtractor.
*/
private static class OWLAxiomPartExtractor implements OWLAxiomVisitor {
private final Set rhs = new HashSet<>();
private final Set lhs = new HashSet<>();
/**
* Instantiates a new part extractor.
*/
OWLAxiomPartExtractor() {}
/**
* @return the RHS
*/
public Set getRHS() {
return rhs;
}
/**
* @return the LHS
*/
public Set getLHS() {
return lhs;
}
@Override
public void visit(OWLSubClassOfAxiom axiom) {
rhs.add(axiom.getSuperClass());
lhs.add(axiom.getSubClass());
}
@Override
public void visit(OWLNegativeObjectPropertyAssertionAxiom axiom) {
rhs.add(axiom.getObject());
rhs.add(axiom.getProperty());
lhs.add(axiom.getSubject());
}
@Override
public void visit(OWLAsymmetricObjectPropertyAxiom axiom) {
rhs.add(axiom.getProperty());
}
@Override
public void visit(OWLReflexiveObjectPropertyAxiom axiom) {
rhs.add(axiom.getProperty());
}
@Override
public void visit(OWLDisjointClassesAxiom axiom) {
add(rhs, axiom.classExpressions());
add(lhs, axiom.classExpressions());
}
@Override
public void visit(OWLDataPropertyDomainAxiom axiom) {
rhs.add(axiom.getDomain());
lhs.add(axiom.getProperty());
}
@Override
public void visit(OWLObjectPropertyDomainAxiom axiom) {
rhs.add(axiom.getDomain());
lhs.add(axiom.getProperty());
}
@Override
public void visit(OWLEquivalentObjectPropertiesAxiom axiom) {
add(rhs, axiom.properties());
add(lhs, axiom.properties());
}
@Override
public void visit(OWLNegativeDataPropertyAssertionAxiom axiom) {
rhs.add(axiom.getProperty());
rhs.add(axiom.getObject());
lhs.add(axiom.getSubject());
}
@Override
public void visit(OWLDifferentIndividualsAxiom axiom) {
add(rhs, axiom.individuals());
add(lhs, axiom.individuals());
}
@Override
public void visit(OWLDisjointDataPropertiesAxiom axiom) {
add(rhs, axiom.properties());
add(lhs, axiom.properties());
}
@Override
public void visit(OWLDisjointObjectPropertiesAxiom axiom) {
add(rhs, axiom.properties());
add(lhs, axiom.properties());
}
@Override
public void visit(OWLObjectPropertyRangeAxiom axiom) {
rhs.add(axiom.getRange());
lhs.add(axiom.getProperty());
}
@Override
public void visit(OWLObjectPropertyAssertionAxiom axiom) {
rhs.add(axiom.getProperty());
rhs.add(axiom.getObject());
lhs.add(axiom.getSubject());
}
@Override
public void visit(OWLFunctionalObjectPropertyAxiom axiom) {
rhs.add(axiom.getProperty());
}
@Override
public void visit(OWLSubObjectPropertyOfAxiom axiom) {
rhs.add(axiom.getSuperProperty());
lhs.add(axiom.getSubProperty());
}
@Override
public void visit(OWLDisjointUnionAxiom axiom) {
add(rhs, axiom.classExpressions());
rhs.add(axiom.getOWLClass());
lhs.add(axiom.getOWLClass());
add(lhs, axiom.classExpressions());
}
@Override
public void visit(OWLSymmetricObjectPropertyAxiom axiom) {
rhs.add(axiom.getProperty());
}
@Override
public void visit(OWLDataPropertyRangeAxiom axiom) {
rhs.add(axiom.getRange());
lhs.add(axiom.getProperty());
}
@Override
public void visit(OWLFunctionalDataPropertyAxiom axiom) {
rhs.add(axiom.getProperty());
}
@Override
public void visit(OWLEquivalentDataPropertiesAxiom axiom) {
add(rhs, axiom.properties());
add(lhs, axiom.properties());
}
@Override
public void visit(OWLClassAssertionAxiom axiom) {
rhs.add(axiom.getClassExpression());
lhs.add(axiom.getIndividual());
}
@Override
public void visit(OWLEquivalentClassesAxiom axiom) {
add(rhs, axiom.classExpressions());
add(lhs, axiom.classExpressions());
}
@Override
public void visit(OWLDataPropertyAssertionAxiom axiom) {
rhs.add(axiom.getProperty());
lhs.add(axiom.getSubject());
}
@Override
public void visit(OWLTransitiveObjectPropertyAxiom axiom) {
rhs.add(axiom.getProperty());
}
@Override
public void visit(OWLIrreflexiveObjectPropertyAxiom axiom) {
rhs.add(axiom.getProperty());
}
@Override
public void visit(OWLSubDataPropertyOfAxiom axiom) {
rhs.add(axiom.getSuperProperty());
}
@Override
public void visit(OWLInverseFunctionalObjectPropertyAxiom axiom) {
rhs.add(axiom.getProperty());
}
@Override
public void visit(OWLSameIndividualAxiom axiom) {
add(rhs, axiom.individuals());
add(lhs, axiom.individuals());
}
@Override
public void visit(OWLSubPropertyChainOfAxiom axiom) {
rhs.add(axiom.getSuperProperty());
lhs.addAll(axiom.getPropertyChain());
}
@Override
public void visit(OWLInverseObjectPropertiesAxiom axiom) {
add(rhs, axiom.properties());
add(lhs, axiom.properties());
}
}
}
