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HermiT is reasoner for ontologies written using the Web Ontology Language (OWL). Given an OWL file, HermiT can determine whether or not the ontology is consistent, identify subsumption relationships between classes, and much more. This is the maven build of HermiT and is designed for people who wish to use HermiT from within the OWL API. It is now versioned in the main HermiT version repository, although not officially supported by the HermiT developers. The version number of this package is a composite of the HermiT version and an value representing releases of this packaged version. So, 1.3.7.1 is the first release of the mavenized version of HermiT based on the 1.3.7 release of HermiT. This package includes the Jautomata library (http://jautomata.sourceforge.net/), and builds with it directly. This library appears to be no longer under active development, and so a "fork" seems appropriate. No development is intended or anticipated on this code base.

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/* Copyright 2008, 2009, 2010 by the Oxford University Computing Laboratory

   This file is part of HermiT.

   HermiT 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 3 of the License, or
   (at your option) any later version.

   HermiT 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 HermiT.  If not, see .
 */
package org.semanticweb.HermiT.hierarchy;

import java.util.Map;
import java.util.Set;

import org.semanticweb.HermiT.model.AtomicConcept;
import org.semanticweb.HermiT.model.AtomicRole;
import org.semanticweb.HermiT.model.DLClause;
import org.semanticweb.HermiT.model.DLPredicate;
import org.semanticweb.HermiT.model.Role;
import org.semanticweb.HermiT.tableau.ReasoningTaskDescription;
import org.semanticweb.HermiT.tableau.Tableau;

public class QuasiOrderClassificationForRoles extends QuasiOrderClassification {
    protected final boolean m_hasInverses;
    protected final Map m_conceptsForRoles;
    protected final Map m_rolesForConcepts;

    public QuasiOrderClassificationForRoles(Tableau tableau,ClassificationProgressMonitor progressMonitor,AtomicConcept topElement,AtomicConcept bottomElement,Set elements,boolean hasInverses,Map conceptsForRoles,Map rolesForConcepts) {
        super(tableau,progressMonitor,topElement,bottomElement,elements);
        m_hasInverses=hasInverses;
        m_conceptsForRoles=conceptsForRoles;
        m_rolesForConcepts=rolesForConcepts;
    }
    protected void initialiseKnownSubsumptionsUsingToldSubsumers(Set dlClauses) {
        for (DLClause dlClause : dlClauses) {
            if (dlClause.getHeadLength()==1 && dlClause.getBodyLength()==1) {
                DLPredicate headPredicate=dlClause.getHeadAtom(0).getDLPredicate();
                DLPredicate bodyPredicate=dlClause.getBodyAtom(0).getDLPredicate();
                if (headPredicate instanceof AtomicRole && m_conceptsForRoles.containsKey(headPredicate) && bodyPredicate instanceof AtomicRole && m_conceptsForRoles.containsKey(bodyPredicate)) {
                    AtomicRole headRole=(AtomicRole)headPredicate;
                    AtomicRole bodyRole=(AtomicRole)bodyPredicate;
                    AtomicConcept conceptForHeadRole=m_conceptsForRoles.get(headRole);
                    AtomicConcept conceptForBodyRole=m_conceptsForRoles.get(bodyRole);
                    assert conceptForBodyRole!=null;
                    assert conceptForHeadRole!=null;
                    if (dlClause.getBodyAtom(0).getArgument(0)!=dlClause.getHeadAtom(0).getArgument(0)) {
                        // r -> s^- and r^- -> s
                        AtomicConcept conceptForBodyInvRole=m_conceptsForRoles.get(bodyRole.getInverse());
                        addKnownSubsumption(conceptForBodyInvRole,conceptForHeadRole);
                    }
                    else {
                        // r-> s and r^- -> s^-
                        addKnownSubsumption(conceptForBodyRole,conceptForHeadRole);
                    }
                }
            }
        }
    }
    protected void addKnownSubsumption(AtomicConcept subConcept,AtomicConcept superConcept) {
        super.addKnownSubsumption(subConcept,superConcept);
        if (m_hasInverses) {
            AtomicConcept subConceptForInverse=m_conceptsForRoles.get((m_rolesForConcepts.get(subConcept)).getInverse());
            AtomicConcept superConceptForInverse=m_conceptsForRoles.get((m_rolesForConcepts.get(superConcept)).getInverse());
            super.addKnownSubsumption(subConceptForInverse,superConceptForInverse);
        }
    }
    protected void addPossibleSubsumption(AtomicConcept subConcept,AtomicConcept superConcept) {
        super.addPossibleSubsumption(subConcept,superConcept);
        if (m_hasInverses) {
            AtomicConcept subConceptForInverse=m_conceptsForRoles.get((m_rolesForConcepts.get(subConcept)).getInverse());
            AtomicConcept superConceptForInverse=m_conceptsForRoles.get((m_rolesForConcepts.get(superConcept)).getInverse());
            super.addPossibleSubsumption(subConceptForInverse,superConceptForInverse);
        }
    }
    protected ReasoningTaskDescription getSatTestDescription(AtomicConcept atomicConcept) {
        return ReasoningTaskDescription.isRoleSatisfiable(m_rolesForConcepts.get(atomicConcept),true);
    }
    protected ReasoningTaskDescription getSubsumptionTestDescription(AtomicConcept subConcept,AtomicConcept superConcept) {
        return ReasoningTaskDescription.isRoleSubsumedBy(m_rolesForConcepts.get(subConcept),m_rolesForConcepts.get(superConcept),true);
    }
    protected ReasoningTaskDescription getSubsumedByListTestDescription(AtomicConcept subConcept,Object[] superconcepts) {
        Object[] roles=new Object[superconcepts.length];
        for (int i=0;i