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