ontmodelspec.java

jena2.5.4推理机系统的一种最基本实现 HP实验室出品

/*****************************************************************************
 * Source code information
 * -----------------------
 * Original author    Ian Dickinson, HP Labs Bristol
 * Author email       [e-mail]
 * Package            Jena 2
 * Web                http://sourceforge.net/projects/jena/
 * Created            13-May-2003
 * Filename           $RCSfile: OntModelSpec.java,v $
 * Revision           $Revision: 1.51 $
 * Release status     $State: Exp $
 *
 * Last modified on   $Date: 2007/03/08 15:24:16 $
 *               by   $Author: chris-dollin $
 *
 * (c) Copyright 2002, 2003, 204, Hewlett-Packard Development Company, LP
 * (see footer for full conditions)
 *****************************************************************************/

// Package
///////////////
package com.hp.hpl.jena.ontology;



// Imports
///////////////

import com.hp.hpl.jena.rdf.model.*;
import com.hp.hpl.jena.rdf.model.impl.*;
import com.hp.hpl.jena.reasoner.*;
import com.hp.hpl.jena.reasoner.rulesys.*;
import com.hp.hpl.jena.reasoner.rulesys.impl.WrappedReasonerFactory;
import com.hp.hpl.jena.assembler.*;
import com.hp.hpl.jena.ontology.impl.*;
import com.hp.hpl.jena.vocabulary.*;
import com.hp.hpl.jena.reasoner.transitiveReasoner.TransitiveReasonerFactory;
import com.hp.hpl.jena.shared.*;


/**
 * <p>
 * Encapsulates a description of the components of an ontology model, including the
 * storage scheme, reasoner and language profile.
 * </p>
 *
 * @author Ian Dickinson, HP Labs
 *         (<a  href="mailto:[e-mail]" >email</a>)
 * @version CVS $Id: OntModelSpec.java,v 1.51 2007/03/08 15:24:16 chris-dollin Exp $
 */
public class OntModelSpec extends OntModelSpecObsolete implements ModelSpec {
    // Constants
    //////////////////////////////////
    // Static variables
    //////////////////////////////////

    /** A specification for OWL models that are stored in memory and do no additional entailment reasoning */
    public static final OntModelSpec OWL_MEM = new OntModelSpec( ModelFactory.createMemModelMaker(), null, null, ProfileRegistry.OWL_LANG );

    /** A specification for OWL models that are stored in memory and use the RDFS inferencer for additional entailments */
    public static final OntModelSpec OWL_MEM_RDFS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, RDFSRuleReasonerFactory.theInstance(), ProfileRegistry.OWL_LANG );

    /** A specification for OWL models that are stored in memory and use the transitive inferencer for additional entailments */
    public static final OntModelSpec OWL_MEM_TRANS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, TransitiveReasonerFactory.theInstance(), ProfileRegistry.OWL_LANG );

    /** A specification for OWL models that are stored in memory and use the OWL rules inference engine for additional entailments */
    public static final OntModelSpec OWL_MEM_RULE_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, OWLFBRuleReasonerFactory.theInstance(), ProfileRegistry.OWL_LANG );

    /** A specification for OWL models that are stored in memory and use the micro OWL rules inference engine for additional entailments */
    public static final OntModelSpec OWL_MEM_MICRO_RULE_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, OWLMicroReasonerFactory.theInstance(), ProfileRegistry.OWL_LANG );

    /** A specification for OWL models that are stored in memory and use the mini OWL rules inference engine for additional entailments */
    public static final OntModelSpec OWL_MEM_MINI_RULE_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, OWLMiniReasonerFactory.theInstance(), ProfileRegistry.OWL_LANG );

    /** A specification for OWL DL models that are stored in memory and do no additional entailment reasoning */
    public static final OntModelSpec OWL_DL_MEM = new OntModelSpec( ModelFactory.createMemModelMaker(), null, null, ProfileRegistry.OWL_DL_LANG );

    /** A specification for OWL DL models that are stored in memory and use the RDFS inferencer for additional entailments */
    public static final OntModelSpec OWL_DL_MEM_RDFS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, RDFSRuleReasonerFactory.theInstance(), ProfileRegistry.OWL_DL_LANG );

    /** A specification for OWL DL models that are stored in memory and use the transitive inferencer for additional entailments */
    public static final OntModelSpec OWL_DL_MEM_TRANS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, TransitiveReasonerFactory.theInstance(), ProfileRegistry.OWL_DL_LANG );

    /** A specification for OWL DL models that are stored in memory and use the OWL rules inference engine for additional entailments */
    public static final OntModelSpec OWL_DL_MEM_RULE_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, OWLFBRuleReasonerFactory.theInstance(), ProfileRegistry.OWL_DL_LANG );

    /** A specification for OWL Lite models that are stored in memory and do no entailment additional reasoning */
    public static final OntModelSpec OWL_LITE_MEM = new OntModelSpec( ModelFactory.createMemModelMaker(), null, null, ProfileRegistry.OWL_LITE_LANG );

    /** A specification for OWL Lite models that are stored in memory and use the transitive inferencer for additional entailments */
    public static final OntModelSpec OWL_LITE_MEM_TRANS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, TransitiveReasonerFactory.theInstance(), ProfileRegistry.OWL_LITE_LANG );

    /** A specification for OWL Lite models that are stored in memory and use the RDFS inferencer for additional entailments */
    public static final OntModelSpec OWL_LITE_MEM_RDFS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, RDFSRuleReasonerFactory.theInstance(), ProfileRegistry.OWL_LITE_LANG );

    /** A specification for OWL Lite models that are stored in memory and use the OWL rules inference engine for additional entailments */
    public static final OntModelSpec OWL_LITE_MEM_RULES_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, OWLFBRuleReasonerFactory.theInstance(), ProfileRegistry.OWL_LITE_LANG );

    /** A specification for DAML models that are stored in memory and do no additional entailment reasoning */
    public static final OntModelSpec DAML_MEM = new OntModelSpec( ModelFactory.createMemModelMaker(), null, null, ProfileRegistry.DAML_LANG );

    /** A specification for DAML models that are stored in memory and use the transitive reasoner for entailments */
    public static final OntModelSpec DAML_MEM_TRANS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, TransitiveReasonerFactory.theInstance(), ProfileRegistry.DAML_LANG );

    /** A specification for DAML models that are stored in memory and use the RDFS inferencer for additional entailments */
    public static final OntModelSpec DAML_MEM_RDFS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, RDFSRuleReasonerFactory.theInstance(), ProfileRegistry.DAML_LANG );

    /** A specification for DAML models that are stored in memory and use a subset of the DAML semantic model additional entailments */
    public static final OntModelSpec DAML_MEM_RULE_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, DAMLMicroReasonerFactory.theInstance(), ProfileRegistry.DAML_LANG );

    /** A specification for RDFS ontology models that are stored in memory and do no additional entailment reasoning */
    public static final OntModelSpec RDFS_MEM = new OntModelSpec( ModelFactory.createMemModelMaker(), null, null, ProfileRegistry.RDFS_LANG );

    /** A specification for RDFS ontology models that are stored in memory and use the transitive reasoner for entailments */
    public static final OntModelSpec RDFS_MEM_TRANS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, TransitiveReasonerFactory.theInstance(), ProfileRegistry.RDFS_LANG );

    /** A specification for RDFS ontology models that are stored in memory and use the RDFS inferencer for additional entailments */
    public static final OntModelSpec RDFS_MEM_RDFS_INF = new OntModelSpec( ModelFactory.createMemModelMaker(), null, RDFSRuleReasonerFactory.theInstance(), ProfileRegistry.RDFS_LANG );


    // Instance variables
    //////////////////////////////////

    /** The specification document manager */
    protected OntDocumentManager m_docManager = null;

    /** The specification reasoner */
    protected Reasoner m_reasoner = null;

    /** The language URI for the ontology */
    protected String m_languageURI;

    /** The ontology language profile */
    protected Profile m_profile = null;

    /** The reasoner factory for creating the reasoner on demand */
    protected ReasonerFactory m_rFactory = null;

    /** The ModelMaker used for creating imported models */
    protected ModelMaker m_importsMaker;

    /** the name of the base model in the baseModelMaker, if specified */
    protected String m_baseModelName;
    
    /** the ModelGetter which will be used - eventually - for imports */
    protected ModelGetter importModelGetter;

    // Constructors
    //////////////////////////////////

    /**
     * <p>Construct a new ontology model specification with the given specification parameters</p>
     * @param importsMaker The model maker, which will be used to construct stores for statements in the
     * imported ontologies and the base ontology. Use null to get a default (memory) model maker.
     * @param docMgr The document manager, or null for the default document manager.
     * @param rFactory The factory for the reasoner to use to infer additional triples in the model, or null for no reasoner
     * @param languageURI The URI of the ontology language. Required.
     */
    public OntModelSpec( ModelMaker importsMaker, OntDocumentManager docMgr, ReasonerFactory rFactory, String languageURI ) {
        this( ModelFactory.createMemModelMaker(), importsMaker, docMgr, rFactory, languageURI );
    }

    /**
     * Construct a new ontology model specification from the supplied components.
     * @param baseMaker the model-maker to use for the base model
     * @param importsMaker the model-maker to use for imported models
     * @param docMgr the document manager (null for the default manager)
     * @param rFactory the reasoner (null for no reasoner)
     * @param languageURI the ontology language URI (must not be null)
    */
    public OntModelSpec( ModelMaker baseMaker, ModelMaker importsMaker, OntDocumentManager docMgr,
                         ReasonerFactory rFactory, String languageURI ) {
        this( null, baseMaker, importsMaker, docMgr, rFactory, languageURI );
    }


    /**
     * Construct a new ontology model specification from the supplied components.
     * @param baseModelName the name of the model in the baseModelMaker
     * @param baseMaker the model-maker to use for the base model
     * @param importsMaker the model-maker to use for imported models
     * @param docMgr the document manager (null for the default manager)
     * @param rFactory the reasoner (null for no reasoner)
     * @param languageURI the ontology language URI (must not be null)
    */
    public OntModelSpec( String baseModelName, ModelMaker baseMaker,
                         ModelMaker importsMaker, OntDocumentManager docMgr,
                         ReasonerFactory rFactory, String languageURI ) {
        super( baseMaker );
        m_baseModelName = baseModelName;
        m_importsMaker = importsMaker == null ? ModelFactory.createMemModelMaker() : importsMaker;
        setDocumentManager( docMgr );
        setReasonerFactory( rFactory );

        if (languageURI == null) {
            throw new IllegalArgumentException( "Cannot create OntModelSpec with a null ontology language" );
        }
        setLanguage( languageURI );
    }


    /**
     * <p>Create one model spec as a copy of another. This is useful when what is required is similar to
     * an existing spec, but with some changes. <strong>Note:</strong> this is only a shallow copy, so the
     * structured objects (reasoners, document managers, etc) are not themselves copied. Thus, even after
     * calling this copy constructor, making a change to the document manager in the copy specification
     * will also affect the one that the copy was made from. The correct idiom is to replace the object
     * before side-effecting it, e.g:
     * <code><pre>
     *   OntModelSpec newSpec = new OntModelSpec( existingSpec );
     *   newSpec.setDocumentManager( new OntDocumentManager() );
     *   newSpec.getDocumentManager().setMetaDataSearchPath( "..." );
     * </pre></code>
     * @param spec
     */
    public OntModelSpec( OntModelSpec spec ) {
        this( spec.getBaseModelMaker(), spec.getImportModelMaker(), spec.getDocumentManager(),
              spec.getReasonerFactory(), spec.getLanguage() );
    }

    public boolean equals( Object other )
        { return other instanceof OntModelSpec && same( (OntModelSpec) other );}
    
    private boolean same( OntModelSpec other )
        {
        return 
            getLanguage().equals( other.getLanguage() )
            && sameReasonerFactory( other )
            && getDocumentManager().equals( other.getDocumentManager() )
            && getImportModelGetter().equals( other.getImportModelGetter() )
            ;
        }
        
    private boolean sameReasonerFactory( OntModelSpec other )
        {
        ReasonerFactory rf = getReasonerFactory();
        ReasonerFactory orf = other.getReasonerFactory();
        return rf == null ? orf == null : rf.equals( orf );
        }

    /**
     * Answer the model maker used for creating imported models.
     * @return The ModelMaker that is used to get or create a model used
     * to hold imports to an OntModel.
     */
    public ModelMaker getImportModelMaker() {
        return m_importsMaker;
    }

    /**
     * Answer the model maker used for creating base models.
     */
    public ModelMaker getBaseModelMaker() {
        return super.getModelMaker();
    }
    
    public ModelGetter getImportModelGetter() {
        if (importModelGetter == null) importModelGetter = m_importsMaker; //  fabricateModelGetter();
        return importModelGetter;
    }

//    private ModelGetter fabricateModelGetter()
//        {
//        return new ModelGetter()
//            {
//            public Model getModel( String URL )
//                {
//                return m_importsMaker.hasModel( URL ) ? m_importsMaker.openModel( URL ) : null;
//                }
//
//            public Model getModel( String URL, ModelReader loadIfAbsent )
//                {
//                return m_importsMaker.hasModel( URL ) ? m_importsMaker.openModel( URL ) : createAndLoad( URL, loadIfAbsent );
//                }
//
//            private Model createAndLoad( String URL, ModelReader loadIfAbsent )
//                {
//                Model result = m_importsMaker.createModel( URL );
//                return loadIfAbsent.readModel( result, URL );
//                }
//            };
//        }

    public void setImportModelGetter( ModelGetter mg ) {
        importModelGetter = mg;
    }
    
    /**
     * <p>Initialise an OntModelSpec from an RDF description using the JenaModelSpec vocabulary. See