001    /**
002     *   GRANITE DATA SERVICES
003     *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004     *
005     *   This file is part of the Granite Data Services Platform.
006     *
007     *   Granite Data Services is free software; you can redistribute it and/or
008     *   modify it under the terms of the GNU Lesser General Public
009     *   License as published by the Free Software Foundation; either
010     *   version 2.1 of the License, or (at your option) any later version.
011     *
012     *   Granite Data Services is distributed in the hope that it will be useful,
013     *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014     *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015     *   General Public License for more details.
016     *
017     *   You should have received a copy of the GNU Lesser General Public
018     *   License along with this library; if not, write to the Free Software
019     *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020     *   USA, or see <http://www.gnu.org/licenses/>.
021     */
022    package org.granite.messaging.amf.io.convert.impl;
023    
024    import java.lang.reflect.Type;
025    import java.net.URI;
026    import java.net.URL;
027    
028    import org.granite.messaging.amf.io.convert.Converter;
029    import org.granite.messaging.amf.io.convert.Converters;
030    import org.granite.messaging.amf.io.convert.IllegalConverterArgumentException;
031    import org.granite.messaging.amf.io.convert.Reverter;
032    
033    /**
034     * @author Franck WOLFF
035     */
036    public class String2URI extends Converter implements Reverter {
037    
038        public String2URI(Converters converters) {
039            super(converters);
040        }
041    
042        @Override
043            protected boolean internalCanConvert(Object value, Type targetType) {
044            return (targetType.equals(URI.class) || targetType.equals(URL.class)) && (value == null || value instanceof String);
045        }
046    
047        @Override
048            protected Object internalConvert(Object value, Type targetType) {
049            if (value == null)
050                return null;
051            
052            try {
053                    return (targetType.equals(URI.class) ? new URI((String)value) : new URL((String)value));
054            } catch (Exception e) {
055                    throw new IllegalConverterArgumentException(this, value, targetType, "Illegal URI: " + value);
056            }
057        }
058    
059            public boolean canRevert(Object value) {
060                    return (value == null) || (value instanceof URI) || (value instanceof URL);
061            }
062    
063            public Object revert(Object value) {
064                    if (value != null)
065                            value = value.toString();
066                    return value;
067            }
068    }