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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.coode.owlapi.rdfxml.parser;

import org.semanticweb.owlapi.model.IRI;
import org.semanticweb.owlapi.model.UnloadableImportException;

/**
 * Author: Matthew Horridge

 * The University Of Manchester

 * Bio-Health Informatics Group

 * Date: 09-Dec-2006


 */
@SuppressWarnings("javadoc")
public abstract class AbstractResourceTripleHandler extends AbstractTripleHandler {


    public AbstractResourceTripleHandler(OWLRDFConsumer consumer) {
        super(consumer);
    }


    protected boolean isSubjectOrObjectAnonymous(IRI subject, IRI object) {
        return isAnonymous(subject) || isAnonymous(object);
    }

    protected boolean isSubjectAndObjectMatchingClassExpressionOrMatchingDataRange(IRI subject, IRI object) {
        return (isSubjectAndObjectClassExpression(subject, object) || isSubjectAndObjectDataRange(subject, object));
    }

    protected boolean isSubjectAndObjectDataRange(IRI subject, IRI object) {
        return (getConsumer().isDataRange(subject) && getConsumer().isDataRange(object));
    }

    protected boolean isSubjectAndObjectClassExpression(IRI subject, IRI object) {
        return (getConsumer().isClassExpression(subject) && getConsumer().isClassExpression(object));
    }


    public abstract void handleTriple(IRI subject, IRI predicate, IRI object) throws UnloadableImportException;

    public abstract boolean canHandleStreaming(IRI subject, IRI predicate, IRI object) throws UnloadableImportException;

    public abstract boolean canHandle(IRI subject, IRI predicate, IRI object);

    public void inferTypes(IRI subject, IRI object) {
		if(getConsumer().isClassExpression(object)) {
            getConsumer().addClassExpression(subject, false);
        }
        else if(getConsumer().isDataRange(object)) {
            getConsumer().addDataRange(subject, false);
        }
        else if(getConsumer().isClassExpression(subject)) {
            getConsumer().addClassExpression(object, false);
        }
        else if(getConsumer().isDataRange(subject)) {
            getConsumer().addDataRange(object, false);
        }
	}

}