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
021package org.granite.messaging.amf.io.convert.impl;
022
023import java.lang.reflect.Type;
024import java.net.URI;
025import java.net.URL;
026
027import org.granite.messaging.amf.io.convert.Converter;
028import org.granite.messaging.amf.io.convert.Converters;
029import org.granite.messaging.amf.io.convert.IllegalConverterArgumentException;
030import org.granite.messaging.amf.io.convert.Reverter;
031
032/**
033 * @author Franck WOLFF
034 */
035public 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}