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.util.instantiator;
023    
024    import java.math.BigDecimal;
025    import java.util.ArrayList;
026    import java.util.Collections;
027    import java.util.List;
028    
029    import org.granite.messaging.service.ServiceException;
030    
031    /**
032     * @author Franck WOLFF
033     */
034    public 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    }