mindswap/owl/OWLConfig.java

// The MIT License
//
// Copyright (c) 2004 Evren Sirin
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.

/*
 * Created on Jan 15, 2004
 */
package org.mindswap.owl;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;

import org.mindswap.owls.OWLSFactory;

/**
 * @author Evren Sirin
 */
public class OWLConfig {
    /**
     * Default language is used to determine which literal will be chosen by the
     * getProperty(prop) function when there are multiple triples for the given
     * property. An empty string means the literals with no language identifier
     * will be chosen. A null value means the first found literal will be returned
     * without looking at the language identifier. Note that even when a default
     * language is chosen getProperty(prop, lang) can be used to get literal value
     * for a certain identifier.
     *
     * All the language identifiers in the list will be tried in the order given.
     * Original value for the list is
     *     DEFAULT_LANGS = {"en", "", "en", null};
     * The ordering here works as follows:
     * 1) Try the default language (which is English at the beginning but can be
     *    changed any time with setDefaultLanguage() function
     * 2) Try to find literal with no language identifier
     * 3) Try English literal
     * 4) Try literal with any language identifier
     *
     * See http://www.w3.org/TR/REC-xml#sec-lang-tag for language identifier specs
     */
    public static String[] DEFAULT_LANGS = {"en", "", "en", null};

    public static List DEFAULT_LANG_LIST = Arrays.asList(DEFAULT_LANGS);

    /**
     * Sets the default language that will be tried first when a literal property
     * value is searched. Note that this function only sets the first language
     * but there can be multiple languages defined as DEFAULT_LANGS.
     *
     * @param lang
     */
    public static void setDefaultLanguage(String lang) {
        DEFAULT_LANGS[0] = lang;
    }

    /**
     * Sets all the languages that will be tried when a literal property values is
     * searched. All the languages in the list wil lbe tried in the order given
     *
     * @param langs
     */
    public static void setDefaultLanguages(String[] langs) {
        DEFAULT_LANGS = langs;
    }


    private static Map converters = getDefaultConverters();
    private static boolean strictConversion = true;

    private static Map getDefaultConverters() {
        Map converters = new HashMap();
        converters.putAll(OWLFactory.getDefaultConverters());
        converters.putAll(OWLSFactory.getDefaultConverters());
        return converters;
    }

    public static void addConverter(Class javaClass, OWLObjectConverter converter) {
        converters.put(javaClass ,converter);
    }

    public static OWLObjectConverter getConverter(Class javaClass) {
        return (OWLObjectConverter) converters.get(javaClass);
    }

    public static boolean setStrictConversion(boolean strict) {
        boolean old = strictConversion;
        strictConversion = strict;

        return old;
    }

    public static boolean getStrictConversion() {
        return strictConversion;
    }

    private static Map transformators = new Hashtable();

    public static void addTransformator(OWLClass owlClass, OWLTransformator oWLTransformator) {
        transformators.put(owlClass, oWLTransformator);
    }

    public static OWLTransformator getTransformator(OWLClass owlClass) {
        return (OWLTransformator) transformators.get(owlClass);
    }
}