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    
026    import org.granite.messaging.amf.io.convert.Converter;
027    import org.granite.messaging.amf.io.convert.Converters;
028    
029    /**
030     * @author Franck WOLFF
031     */
032    public class String2Char extends Converter {
033    
034        public String2Char(Converters converters) {
035            super(converters);
036        }
037    
038        @Override
039            protected boolean internalCanConvert(Object value, Type targetType) {
040            return
041                (targetType.equals(Character.TYPE) || targetType.equals(Character.class)) &&
042                (value == null || (value instanceof String && ((String)value).length() <= 1));
043        }
044    
045        @Override
046            protected Object internalConvert(Object value, Type targetType) {
047            final String s = (String)value;
048            if (s == null || s.length() == 0)
049                return targetType.equals(Character.class) ? null : Character.valueOf('\0');
050            return Character.valueOf(s.charAt(0));
051        }
052    }