001    /*
002      GRANITE DATA SERVICES
003      Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004    
005      This file is part of Granite Data Services.
006    
007      Granite Data Services is free software; you can redistribute it and/or modify
008      it under the terms of the GNU Library General Public License as published by
009      the Free Software Foundation; either version 2 of the License, or (at your
010      option) any later version.
011    
012      Granite Data Services is distributed in the hope that it will be useful, but
013      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014      FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015      for more details.
016    
017      You should have received a copy of the GNU Library General Public License
018      along with this library; if not, see <http://www.gnu.org/licenses/>.
019    */
020    
021    package org.granite.messaging.amf.io.convert.impl;
022    
023    import java.lang.reflect.Type;
024    import java.net.URI;
025    import java.net.URL;
026    
027    import org.granite.messaging.amf.io.convert.Converter;
028    import org.granite.messaging.amf.io.convert.Converters;
029    import org.granite.messaging.amf.io.convert.IllegalConverterArgumentException;
030    import org.granite.messaging.amf.io.convert.Reverter;
031    
032    /**
033     * @author Franck WOLFF
034     */
035    public class String2URI extends Converter implements Reverter {
036    
037        public String2URI(Converters converters) {
038            super(converters);
039        }
040    
041        @Override
042            protected boolean internalCanConvert(Object value, Type targetType) {
043            return (targetType.equals(URI.class) || targetType.equals(URL.class)) && (value == null || value instanceof String);
044        }
045    
046        @Override
047            protected Object internalConvert(Object value, Type targetType) {
048            if (value == null)
049                return null;
050            
051            try {
052                    return (targetType.equals(URI.class) ? new URI((String)value) : new URL((String)value));
053            } catch (Exception e) {
054                    throw new IllegalConverterArgumentException(this, value, targetType, "Illegal URI: " + value);
055            }
056        }
057    
058            public boolean canRevert(Object value) {
059                    return (value == null) || (value instanceof URI) || (value instanceof URL);
060            }
061    
062            public Object revert(Object value) {
063                    if (value != null)
064                            value = value.toString();
065                    return value;
066            }
067    }