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.BigDecimal;
025import java.util.ArrayList;
026import java.util.Collections;
027import java.util.List;
028
029import org.granite.messaging.service.ServiceException;
030
031/**
032 * @author Franck WOLFF
033 */
034public class BigDecimalInstantiator extends AbstractInstantiator<BigDecimal> {
035
036        private static final long serialVersionUID = 1L;
037
038        private static final String VALUE = "value";
039        
040        private static final List<String> orderedFields;
041    static {
042        List<String> of = new ArrayList<String>(1);
043        of.add(VALUE);
044        orderedFields = Collections.unmodifiableList(of);
045    }
046
047    public BigDecimalInstantiator() {
048    }
049
050    @Override
051    public List<String> getOrderedFieldNames() {
052        return orderedFields;
053    }
054
055    @Override
056    public BigDecimal newInstance() {
057        BigDecimal bigDecimal = null;
058
059        String value = (String)get(VALUE);
060        
061        if (value != null && value.length() <= 2) {
062                if ("0".equals(value))
063                        bigDecimal = BigDecimal.ZERO;
064                else if ("1".equals(value))
065                        bigDecimal = BigDecimal.ONE;
066                else if ("10".equals(value))
067                        bigDecimal = BigDecimal.TEN;
068        }
069        
070        if (bigDecimal == null) try {
071            bigDecimal = new BigDecimal(value);
072        } catch (NumberFormatException e) {
073            throw new ServiceException("Illegal BigDecimal value: " + value, e);
074        }
075
076        return bigDecimal;
077    }
078}