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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, 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.profiles;

import java.util.HashSet;
import java.util.Set;

import org.semanticweb.owlapi.model.IRI;
import org.semanticweb.owlapi.model.OWLClass;
import org.semanticweb.owlapi.model.OWLClassAssertionAxiom;
import org.semanticweb.owlapi.model.OWLClassExpression;
import org.semanticweb.owlapi.model.OWLClassExpressionVisitorEx;
import org.semanticweb.owlapi.model.OWLDataAllValuesFrom;
import org.semanticweb.owlapi.model.OWLDataExactCardinality;
import org.semanticweb.owlapi.model.OWLDataHasValue;
import org.semanticweb.owlapi.model.OWLDataIntersectionOf;
import org.semanticweb.owlapi.model.OWLDataMaxCardinality;
import org.semanticweb.owlapi.model.OWLDataMinCardinality;
import org.semanticweb.owlapi.model.OWLDataOneOf;
import org.semanticweb.owlapi.model.OWLDataPropertyDomainAxiom;
import org.semanticweb.owlapi.model.OWLDataSomeValuesFrom;
import org.semanticweb.owlapi.model.OWLDataUnionOf;
import org.semanticweb.owlapi.model.OWLDatatype;
import org.semanticweb.owlapi.model.OWLDatatypeDefinitionAxiom;
import org.semanticweb.owlapi.model.OWLDatatypeRestriction;
import org.semanticweb.owlapi.model.OWLDisjointClassesAxiom;
import org.semanticweb.owlapi.model.OWLDisjointDataPropertiesAxiom;
import org.semanticweb.owlapi.model.OWLDisjointUnionAxiom;
import org.semanticweb.owlapi.model.OWLEquivalentClassesAxiom;
import org.semanticweb.owlapi.model.OWLEquivalentDataPropertiesAxiom;
import org.semanticweb.owlapi.model.OWLFunctionalDataPropertyAxiom;
import org.semanticweb.owlapi.model.OWLHasKeyAxiom;
import org.semanticweb.owlapi.model.OWLObjectAllValuesFrom;
import org.semanticweb.owlapi.model.OWLObjectComplementOf;
import org.semanticweb.owlapi.model.OWLObjectExactCardinality;
import org.semanticweb.owlapi.model.OWLObjectHasSelf;
import org.semanticweb.owlapi.model.OWLObjectHasValue;
import org.semanticweb.owlapi.model.OWLObjectIntersectionOf;
import org.semanticweb.owlapi.model.OWLObjectMaxCardinality;
import org.semanticweb.owlapi.model.OWLObjectMinCardinality;
import org.semanticweb.owlapi.model.OWLObjectOneOf;
import org.semanticweb.owlapi.model.OWLObjectPropertyDomainAxiom;
import org.semanticweb.owlapi.model.OWLObjectPropertyRangeAxiom;
import org.semanticweb.owlapi.model.OWLObjectSomeValuesFrom;
import org.semanticweb.owlapi.model.OWLObjectUnionOf;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLSubClassOfAxiom;
import org.semanticweb.owlapi.model.SWRLRule;
import org.semanticweb.owlapi.util.OWLOntologyWalker;
import org.semanticweb.owlapi.util.OWLOntologyWalkerVisitor;
import org.semanticweb.owlapi.vocab.OWL2Datatype;
import org.semanticweb.owlapi.vocab.OWLRDFVocabulary;

/**
 * @author Matthew Horridge, The University of Manchester, Information
 *         Management Group, Date: 03-Aug-2009
 */
public class OWL2RLProfile implements OWLProfile {

    protected final Set allowedDatatypes = new HashSet();

    /** default constructor */
    public OWL2RLProfile() {
        allowedDatatypes.add(OWLRDFVocabulary.RDF_PLAIN_LITERAL.getIRI());
        allowedDatatypes.add(OWLRDFVocabulary.RDF_XML_LITERAL.getIRI());
        allowedDatatypes.add(OWLRDFVocabulary.RDFS_LITERAL.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_DECIMAL.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_INTEGER.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_NON_NEGATIVE_INTEGER.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_NON_POSITIVE_INTEGER.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_POSITIVE_INTEGER.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_NEGATIVE_INTEGER.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_LONG.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_INT.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_SHORT.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_BYTE.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_UNSIGNED_LONG.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_UNSIGNED_BYTE.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_FLOAT.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_DOUBLE.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_STRING.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_NORMALIZED_STRING.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_TOKEN.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_LANGUAGE.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_NAME.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_NCNAME.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_NMTOKEN.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_BOOLEAN.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_HEX_BINARY.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_BASE_64_BINARY.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_ANY_URI.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_DATE_TIME.getIRI());
        allowedDatatypes.add(OWL2Datatype.XSD_DATE_TIME_STAMP.getIRI());
    }

    @Override
    public String getName() {
        return "OWL 2 RL";
    }

    @Override
    public IRI getIRI() {
        return OWL2_RL;
    }

    @Override
    public OWLProfileReport checkOntology(OWLOntology ontology) {
        OWL2DLProfile profile = new OWL2DLProfile();
        OWLProfileReport report = profile.checkOntology(ontology);
        Set violations = new HashSet();
        violations.addAll(report.getViolations());
        OWLOntologyProfileWalker walker = new OWLOntologyProfileWalker(
                ontology.getImportsClosure());
        OWL2RLObjectVisitor visitor = new OWL2RLObjectVisitor(walker);
        walker.walkStructure(visitor);
        violations.addAll(visitor.getProfileViolations());
        return new OWLProfileReport(this, violations);
    }

    private class OWL2RLObjectVisitor extends OWLOntologyWalkerVisitor {

        private final Set profileViolations = new HashSet();

        OWL2RLObjectVisitor(OWLOntologyWalker walker) {
            super(walker);
        }

        public Set getProfileViolations() {
            return new HashSet(profileViolations);
        }

        @Override
        public Object visit(OWLClassAssertionAxiom axiom) {
            if (!isOWL2RLSuperClassExpression(axiom.getClassExpression())) {
                profileViolations
                        .add(new UseOfNonSuperClassExpression(
                                getCurrentOntology(), axiom, axiom
                                        .getClassExpression()));
            }
            return null;
        }

        @Override
        public Object visit(OWLDataPropertyDomainAxiom axiom) {
            if (!isOWL2RLSuperClassExpression(axiom.getDomain())) {
                profileViolations.add(new UseOfNonSuperClassExpression(
                        getCurrentOntology(), axiom, axiom.getDomain()));
            }
            return null;
        }

        @Override
        public Object visit(OWLDisjointClassesAxiom axiom) {
            profileViolations.add(new UseOfIllegalAxiom(getCurrentOntology(),
                    axiom));
            return null;
        }

        @Override
        public Object visit(OWLDisjointDataPropertiesAxiom axiom) {
            profileViolations.add(new UseOfIllegalAxiom(getCurrentOntology(),
                    axiom));
            return null;
        }

        @Override
        public Object visit(OWLDisjointUnionAxiom axiom) {
            profileViolations.add(new UseOfIllegalAxiom(getCurrentOntology(),
                    axiom));
            return null;
        }

        @Override
        public Object visit(OWLEquivalentClassesAxiom axiom) {
            for (OWLClassExpression ce : axiom.getClassExpressions()) {
                if (!isOWL2RLEquivalentClassExpression(ce)) {
                    profileViolations
                            .add(new UseOfNonEquivalentClassExpression(
                                    getCurrentOntology(), axiom, ce));
                }
            }
            return null;
        }

        @Override
        public Object visit(OWLEquivalentDataPropertiesAxiom axiom) {
            profileViolations.add(new UseOfIllegalAxiom(getCurrentOntology(),
                    axiom));
            return null;
        }

        @Override
        public Object visit(OWLFunctionalDataPropertyAxiom axiom) {
            return null;
        }

        @Override
        public Object visit(OWLHasKeyAxiom axiom) {
            if (!isOWL2RLSubClassExpression(axiom.getClassExpression())) {
                profileViolations
                        .add(new UseOfNonSubClassExpression(
                                getCurrentOntology(), axiom, axiom
                                        .getClassExpression()));
            }
            return null;
        }

        @Override
        public Object visit(OWLObjectPropertyDomainAxiom axiom) {
            if (!isOWL2RLSuperClassExpression(axiom.getDomain())) {
                profileViolations.add(new UseOfNonSuperClassExpression(
                        getCurrentOntology(), axiom, axiom.getDomain()));
            }
            return null;
        }

        @Override
        public Object visit(OWLObjectPropertyRangeAxiom axiom) {
            if (!isOWL2RLSuperClassExpression(axiom.getRange())) {
                profileViolations.add(new UseOfNonSuperClassExpression(
                        getCurrentOntology(), axiom, axiom.getRange()));
            }
            return null;
        }

        @Override
        public Object visit(OWLSubClassOfAxiom axiom) {
            if (!isOWL2RLSubClassExpression(axiom.getSubClass())) {
                profileViolations.add(new UseOfNonSubClassExpression(
                        getCurrentOntology(), axiom, axiom.getSubClass()));
            }
            if (!isOWL2RLSuperClassExpression(axiom.getSuperClass())) {
                profileViolations.add(new UseOfNonSuperClassExpression(
                        getCurrentOntology(), axiom, axiom.getSuperClass()));
            }
            return null;
        }

        @Override
        public Object visit(SWRLRule rule) {
            profileViolations.add(new UseOfIllegalAxiom(getCurrentOntology(),
                    rule));
            return super.visit(rule);
        }

        // @Override
        // public Object visit(OWLDataComplementOf node) {
        // return super.visit(node);
        // }
        @Override
        public Object visit(OWLDataIntersectionOf node) {
            profileViolations.add(new UseOfIllegalDataRange(
                    getCurrentOntology(), getCurrentAxiom(), node));
            return null;
        }

        @Override
        public Object visit(OWLDataOneOf node) {
            profileViolations.add(new UseOfIllegalDataRange(
                    getCurrentOntology(), getCurrentAxiom(), node));
            return null;
        }

        @Override
        public Object visit(OWLDatatype node) {
            if (!allowedDatatypes.contains(node.getIRI())) {
                profileViolations.add(new UseOfIllegalDataRange(
                        getCurrentOntology(), getCurrentAxiom(), node));
            }
            return null;
        }

        @Override
        public Object visit(OWLDatatypeRestriction node) {
            profileViolations.add(new UseOfIllegalDataRange(
                    getCurrentOntology(), getCurrentAxiom(), node));
            return null;
        }

        @Override
        public Object visit(OWLDataUnionOf node) {
            profileViolations.add(new UseOfIllegalDataRange(
                    getCurrentOntology(), getCurrentAxiom(), node));
            return null;
        }

        @Override
        public Object visit(OWLDatatypeDefinitionAxiom axiom) {
            profileViolations.add(new UseOfIllegalAxiom(getCurrentOntology(),
                    getCurrentAxiom()));
            return null;
        }
    }

    private class OWL2RLSubClassExpressionChecker implements
            OWLClassExpressionVisitorEx {

        public OWL2RLSubClassExpressionChecker() {}

        @Override
        public Boolean visit(OWLClass desc) {
            return Boolean.valueOf(!desc.isOWLThing());
        }

        @Override
        public Boolean visit(OWLObjectIntersectionOf desc) {
            for (OWLClassExpression op : desc.getOperands()) {
                if (!isOWL2RLSubClassExpression(op)) {
                    return Boolean.FALSE;
                }
            }
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLObjectUnionOf desc) {
            for (OWLClassExpression op : desc.getOperands()) {
                if (!isOWL2RLSubClassExpression(op)) {
                    return Boolean.FALSE;
                }
            }
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLObjectComplementOf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectSomeValuesFrom desc) {
            return Boolean.valueOf(desc.getFiller().isOWLThing()
                    || isOWL2RLSubClassExpression(desc.getFiller()));
        }

        @Override
        public Boolean visit(OWLObjectAllValuesFrom desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectHasValue desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLObjectMinCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectExactCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectMaxCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectHasSelf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectOneOf desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLDataSomeValuesFrom desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLDataAllValuesFrom desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataHasValue desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLDataMinCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataExactCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataMaxCardinality desc) {
            return Boolean.FALSE;
        }
    }

    private final OWL2RLSubClassExpressionChecker subClassExpressionChecker = new OWL2RLSubClassExpressionChecker();

    protected boolean isOWL2RLSubClassExpression(OWLClassExpression ce) {
        return ce.accept(subClassExpressionChecker).booleanValue();
    }

    private class OWL2RLSuperClassExpressionChecker implements
            OWLClassExpressionVisitorEx {

        public OWL2RLSuperClassExpressionChecker() {}

        @Override
        public Boolean visit(OWLClass desc) {
            return Boolean.valueOf(!desc.isOWLThing());
        }

        @Override
        public Boolean visit(OWLObjectIntersectionOf desc) {
            for (OWLClassExpression ce : desc.getOperands()) {
                if (!ce.accept(this).booleanValue()) {
                    return Boolean.FALSE;
                }
            }
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLObjectUnionOf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectComplementOf desc) {
            return Boolean
                    .valueOf(isOWL2RLSubClassExpression(desc.getOperand()));
        }

        @Override
        public Boolean visit(OWLObjectSomeValuesFrom desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectAllValuesFrom desc) {
            return desc.getFiller().accept(this);
        }

        @Override
        public Boolean visit(OWLObjectHasValue desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLObjectMinCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectExactCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectMaxCardinality desc) {
            return Boolean
                    .valueOf((desc.getCardinality() == 0 || desc
                            .getCardinality() == 1)
                            && (desc.getFiller().isOWLThing() || isOWL2RLSubClassExpression(desc
                                    .getFiller())));
        }

        @Override
        public Boolean visit(OWLObjectHasSelf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectOneOf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataSomeValuesFrom desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataAllValuesFrom desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLDataHasValue desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLDataMinCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataExactCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataMaxCardinality desc) {
            return Boolean.valueOf(desc.getCardinality() == 0
                    || desc.getCardinality() == 1);
        }
    }

    private final OWL2RLSuperClassExpressionChecker superClassExpressionChecker = new OWL2RLSuperClassExpressionChecker();

    /**
     * @param ce
     *        class
     * @return true if OWL 2 RL superclass
     */
    public boolean isOWL2RLSuperClassExpression(OWLClassExpression ce) {
        return ce.accept(superClassExpressionChecker).booleanValue();
    }

    private static class OWL2RLEquivalentClassExpressionChecker implements
            OWLClassExpressionVisitorEx {

        public OWL2RLEquivalentClassExpressionChecker() {}

        @Override
        public Boolean visit(OWLClass desc) {
            return Boolean.valueOf(!desc.isOWLThing());
        }

        @Override
        public Boolean visit(OWLObjectIntersectionOf desc) {
            for (OWLClassExpression ce : desc.getOperands()) {
                if (!ce.accept(this).booleanValue()) {
                    return Boolean.FALSE;
                }
            }
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLObjectUnionOf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectComplementOf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectSomeValuesFrom desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectAllValuesFrom desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectHasValue desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLObjectMinCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectExactCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectMaxCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectHasSelf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLObjectOneOf desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataSomeValuesFrom desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataAllValuesFrom desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataHasValue desc) {
            return Boolean.TRUE;
        }

        @Override
        public Boolean visit(OWLDataMinCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataExactCardinality desc) {
            return Boolean.FALSE;
        }

        @Override
        public Boolean visit(OWLDataMaxCardinality desc) {
            return Boolean.FALSE;
        }
    }

    private final OWL2RLEquivalentClassExpressionChecker equivalentClassExpressionChecker = new OWL2RLEquivalentClassExpressionChecker();

    /**
     * @param ce
     *        class
     * @return true if equivalent classes expression
     */
    public boolean isOWL2RLEquivalentClassExpression(OWLClassExpression ce) {
        return ce.accept(equivalentClassExpressionChecker).booleanValue();
    }
}
    

    

    

                
 
            

    

                
 
            



    
    






    
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