001    /*
002     * (c) Copyright 2009 University of Bristol
003     * All rights reserved.
004     * [See end of file]
005     */
006    
007    package net.rootdev.javardfa.uri;
008    
009    import java.net.URI;
010    import java.net.URISyntaxException;
011    import net.rootdev.javardfa.Resolver;
012    
013    /**
014     * Resolver that uses java's URI library.
015     * The IRI resolver is strongly recommended over this.
016     *
017     * @author pldms
018     */
019    public class URIResolver implements Resolver {
020    
021        public URIResolver() { }
022    
023        public String resolve(String first, String second) {
024            try {
025                URI uri = new URI(first);
026                return uri.resolve(second).toString();
027            } catch (URISyntaxException ex) {
028                // TODO Is this a good idea???
029                return null;
030            } catch (IllegalArgumentException ex) {
031                // See above
032                return null;
033            }
034        }
035    
036    }
037    
038    /*
039     * (c) Copyright 2009 University of Bristol
040     * All rights reserved.
041     *
042     * Redistribution and use in source and binary forms, with or without
043     * modification, are permitted provided that the following conditions
044     * are met:
045     * 1. Redistributions of source code must retain the above copyright
046     *    notice, this list of conditions and the following disclaimer.
047     * 2. Redistributions in binary form must reproduce the above copyright
048     *    notice, this list of conditions and the following disclaimer in the
049     *    documentation and/or other materials provided with the distribution.
050     * 3. The name of the author may not be used to endorse or promote products
051     *    derived from this software without specific prior written permission.
052     *
053     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
054     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
055     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
056     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
057     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
058     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
059     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
060     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
061     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
062     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
063     */