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 Number2Byte extends Converter {
033    
034        private static final Byte ZERO = Byte.valueOf((byte)0);
035    
036        public Number2Byte(Converters converters) {
037            super(converters);
038        }
039    
040        @Override
041            protected boolean internalCanConvert(Object value, Type targetType) {
042            return
043                (targetType.equals(Byte.class) || targetType == Byte.TYPE) &&
044                (value == null || value instanceof Number);
045        }
046    
047        @Override
048            protected Object internalConvert(Object value, Type targetType) {
049            if (value == null)
050                return (targetType == Byte.TYPE ? ZERO : null);
051            return Byte.valueOf(((Number)value).byteValue());
052        }
053    }