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.util.externalizer;
022    
023    import java.io.IOException;
024    import java.io.ObjectInput;
025    import java.io.ObjectOutput;
026    import java.lang.reflect.InvocationTargetException;
027    import java.math.MathContext;
028    
029    import org.granite.messaging.amf.io.util.instantiator.MathContextInstantiator;
030    
031    /**
032     * @author Franck WOLFF
033     */
034    public class MathContextExternalizer extends DefaultExternalizer {
035    
036            public MathContextExternalizer() {
037            }
038    
039            @Override
040            public int accept(Class<?> clazz) {
041                    return (clazz == MathContext.class ? 1 : -1);
042            }
043    
044            @Override
045            public Object newInstance(String type, ObjectInput in) throws IOException, ClassNotFoundException,
046                            InstantiationException, InvocationTargetException, IllegalAccessException {
047                    return new MathContextInstantiator();
048            }
049    
050            @Override
051            public void writeExternal(Object o, ObjectOutput out) throws IOException, IllegalAccessException {
052                    MathContext mc = (MathContext)o;
053                    out.writeObject(mc.getPrecision());
054                    out.writeObject(mc.getRoundingMode());
055            }
056    }