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.BigInteger;
025 import java.util.ArrayList;
026 import java.util.Collections;
027 import java.util.List;
028
029 import org.granite.messaging.amf.io.util.externalizer.BigIntegerExternalizer;
030 import org.granite.messaging.service.ServiceException;
031
032 /**
033 * @author Franck WOLFF
034 */
035 public class BigIntegerInstantiator extends AbstractInstantiator<BigInteger> {
036
037 private static final long serialVersionUID = 1L;
038
039 private static final String VALUE = "value";
040
041 private static final List<String> orderedFields;
042 static {
043 List<String> of = new ArrayList<String>(1);
044 of.add(VALUE);
045 orderedFields = Collections.unmodifiableList(of);
046 }
047
048 public BigIntegerInstantiator() {
049 }
050
051 @Override
052 public List<String> getOrderedFieldNames() {
053 return orderedFields;
054 }
055
056 @Override
057 public BigInteger newInstance() {
058 BigInteger bigInteger = null;
059
060 String value = (String)get(VALUE);
061
062 if (value != null && value.length() == 1) {
063 switch (Character.toLowerCase(value.charAt(0))) {
064 case '0':
065 bigInteger = BigInteger.ZERO;
066 break;
067 case '1':
068 bigInteger = BigInteger.ONE;
069 break;
070 case 'a':
071 bigInteger = BigInteger.TEN;
072 break;
073 }
074 }
075
076 if (bigInteger == null) try {
077 bigInteger = new BigInteger(value, BigIntegerExternalizer.RADIX);
078 }
079 catch (NumberFormatException e) {
080 throw new ServiceException("Illegal BigInteger value (base " + BigIntegerExternalizer.RADIX + "): " + value, e);
081 }
082
083 return bigInteger;
084 }
085 }