com.clarkparsia.owlapi.explanation.util.OntologyUtils Maven / Gradle / Ivy
/*
* 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, Clark & Parsia, LLC
*
* 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, Clark & Parsia, LLC
*
* 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 com.clarkparsia.owlapi.explanation.util;
import java.util.HashSet;
import java.util.Set;
import org.semanticweb.owlapi.model.AddAxiom;
import org.semanticweb.owlapi.model.OWLAxiom;
import org.semanticweb.owlapi.model.OWLClass;
import org.semanticweb.owlapi.model.OWLClassExpression;
import org.semanticweb.owlapi.model.OWLEntity;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLOntologyManager;
import org.semanticweb.owlapi.model.RemoveAxiom;
/** Some ontology utils methods. */
public class OntologyUtils {
/**
* Determines if a class description contains any unreferenced entities with
* respect to the ontology that contains the entailments which are being
* explained.
*
* @param ontology
* the ontology to search
* @param desc
* The description to be searched
* @return {@code true} if the description references entities that the
* ontology that contains entailments which are being explained,
* otherwise {@code false}
*/
public static boolean containsUnreferencedEntity(OWLOntology ontology,
OWLClassExpression desc) {
for (OWLEntity entity : desc.getSignature()) {
if (!ontology.containsEntityInSignature(entity)) {
if (entity instanceof OWLClass
&& (((OWLClass) entity).isOWLThing() || ((OWLClass) entity)
.isOWLNothing())) {
continue;
}
return true;
}
}
return false;
}
/**
* Removes an axiom from all the given ontologies that contains the axiom
* and returns those ontologies.
*
* @param axiom
* axiom being removed
* @param ontologies
* ontologies from which axiom is being removed
* @param manager
* manager to apply the actual change
* @return set of ontologies that have been affected
*/
public static Set removeAxiom(OWLAxiom axiom,
Set ontologies, OWLOntologyManager manager) {
Set modifiedOnts = new HashSet();
for (OWLOntology ont : ontologies) {
if (ont.getAxioms().contains(axiom)) {
modifiedOnts.add(ont);
manager.applyChange(new RemoveAxiom(ont, axiom));
}
}
return modifiedOnts;
}
/**
* Add the axiom to all the given ontologies.
*
* @param axiom
* the axiom to add
* @param ontologies
* the ontologies to add the axiom to
* @param manager
* the manager for the application
*/
public static void addAxiom(OWLAxiom axiom, Set ontologies,
OWLOntologyManager manager) {
for (OWLOntology ont : ontologies) {
manager.applyChange(new AddAxiom(ont, axiom));
}
}
}