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;
024
025import org.granite.messaging.amf.io.convert.Converter;
026import org.granite.messaging.amf.io.convert.Converters;
027
028/**
029 * @author Franck WOLFF
030 */
031public class String2Char extends Converter {
032
033    public String2Char(Converters converters) {
034        super(converters);
035    }
036
037    @Override
038        protected boolean internalCanConvert(Object value, Type targetType) {
039        return
040            (targetType.equals(Character.TYPE) || targetType.equals(Character.class)) &&
041            (value == null || (value instanceof String && ((String)value).length() <= 1));
042    }
043
044    @Override
045        protected Object internalConvert(Object value, Type targetType) {
046        final String s = (String)value;
047        if (s == null || s.length() == 0)
048            return targetType.equals(Character.class) ? null : Character.valueOf('\0');
049        return Character.valueOf(s.charAt(0));
050    }
051}