001    /*
002     * Copyright (c) 2006 Henri Sivonen
003     *
004     * Permission is hereby granted, free of charge, to any person obtaining a 
005     * copy of this software and associated documentation files (the "Software"), 
006     * to deal in the Software without restriction, including without limitation 
007     * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
008     * and/or sell copies of the Software, and to permit persons to whom the 
009     * Software is furnished to do so, subject to the following conditions:
010     *
011     * The above copyright notice and this permission notice shall be included in 
012     * all copies or substantial portions of the Software.
013     *
014     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
015     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
016     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
017     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
018     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
019     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
020     * DEALINGS IN THE SOFTWARE.
021     */
022    
023    package org.whattf.datatype;
024    
025    import java.net.MalformedURLException;
026    
027    import org.relaxng.datatype.DatatypeException;
028    
029    import com.hp.hpl.jena.iri.IRI;
030    import com.hp.hpl.jena.iri.IRIException;
031    import com.hp.hpl.jena.iri.IRIFactory;
032    
033    public class IriRef extends AbstractDatatype {
034    
035        /**
036         * The singleton instance.
037         */
038        public static final IriRef THE_INSTANCE = new IriRef();
039    
040        protected IriRef() {
041            super();
042        }
043    
044        public void checkValid(CharSequence literal)
045                throws DatatypeException {
046            // TODO Find out if it is safe to put this in a field
047            IRIFactory fac = new IRIFactory();
048            fac.shouldViolation(true, false);
049            fac.securityViolation(true, false);
050            fac.dnsViolation(true, false);
051            fac.mintingViolation(false, false); // XXX do we want these?
052            fac.useSpecificationIRI(true);
053            fac.useSchemeSpecificRules("http", true);
054            fac.useSchemeSpecificRules("https", true);
055            fac.useSchemeSpecificRules("ftp", true);
056            fac.useSchemeSpecificRules("mailto", true); // XXX broken
057            fac.useSchemeSpecificRules("file", true);
058            fac.useSchemeSpecificRules("data", true); // XXX broken
059            // XXX javascript?
060            fac.setQueryCharacterRestrictions(false);
061            IRI iri;
062            try {
063                iri = fac.construct(literal.toString());
064            } catch (IRIException e) {
065                throw new DatatypeException("Bad IRI: " + e.getMessage());
066            }
067            if (isAbsolute()) {
068                if (!iri.isAbsolute()) {
069                    throw new DatatypeException("Not an absolute IRI.");
070                }
071            }
072            try {
073                iri.toASCIIString();
074            } catch (MalformedURLException e) {
075                throw new DatatypeException("Bad IRI: " + e.getMessage());
076            }
077        }
078    
079        protected boolean isAbsolute() {
080            return false;
081        }
082    }