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 */
022package org.granite.messaging.amf.io.util.instantiator;
023
024import java.math.MathContext;
025import java.math.RoundingMode;
026import java.util.ArrayList;
027import java.util.Collections;
028import java.util.List;
029
030/**
031 * @author Franck WOLFF
032 */
033public class MathContextInstantiator extends AbstractInstantiator<MathContext> {
034
035        private static final long serialVersionUID = 1L;
036
037        private static final String PRECISION = "precision";
038        private static final String ROUNDING_MODE = "roundingMode";
039        
040        private static final List<String> orderedFields;
041    static {
042        List<String> of = new ArrayList<String>(1);
043        of.add(PRECISION);
044        of.add(ROUNDING_MODE);
045        orderedFields = Collections.unmodifiableList(of);
046    }
047
048    public MathContextInstantiator() {
049    }
050
051    @Override
052    public List<String> getOrderedFieldNames() {
053        return orderedFields;
054    }
055
056    @Override
057    public MathContext newInstance() {
058        int precision = ((Integer)get(PRECISION)).intValue();
059        RoundingMode roundingMode = (RoundingMode)get(ROUNDING_MODE);
060
061        return new MathContext(precision, roundingMode);
062    }
063}