01: package com.quadcap.sql.io;
02:
03: /* Copyright 1999 - 2003 Quadcap Software. All rights reserved.
04: *
05: * This software is distributed under the Quadcap Free Software License.
06: * This software may be used or modified for any purpose, personal or
07: * commercial. Open Source redistributions are permitted. Commercial
08: * redistribution of larger works derived from, or works which bundle
09: * this software requires a "Commercial Redistribution License"; see
10: * http://www.quadcap.com/purchase.
11: *
12: * Redistributions qualify as "Open Source" under one of the following terms:
13: *
14: * Redistributions are made at no charge beyond the reasonable cost of
15: * materials and delivery.
16: *
17: * Redistributions are accompanied by a copy of the Source Code or by an
18: * irrevocable offer to provide a copy of the Source Code for up to three
19: * years at the cost of materials and delivery. Such redistributions
20: * must allow further use, modification, and redistribution of the Source
21: * Code under substantially the same terms as this license.
22: *
23: * Redistributions of source code must retain the copyright notices as they
24: * appear in each source code file, these license terms, and the
25: * disclaimer/limitation of liability set forth as paragraph 6 below.
26: *
27: * Redistributions in binary form must reproduce this Copyright Notice,
28: * these license terms, and the disclaimer/limitation of liability set
29: * forth as paragraph 6 below, in the documentation and/or other materials
30: * provided with the distribution.
31: *
32: * The Software is provided on an "AS IS" basis. No warranty is
33: * provided that the Software is free of defects, or fit for a
34: * particular purpose.
35: *
36: * Limitation of Liability. Quadcap Software shall not be liable
37: * for any damages suffered by the Licensee or any third party resulting
38: * from use of the Software.
39: */
40:
41: import java.io.IOException;
42: import java.io.ObjectInput;
43: import java.io.ObjectOutput;
44:
45: import java.math.BigDecimal;
46: import java.math.BigInteger;
47:
48: import com.quadcap.util.Debug;
49:
50: /**
51: * ExternalizeProxy for <code>java.math.BigDecimal</code> objects.
52: *
53: * @author Stan Bailes
54: */
55: public class ExternProxyBigDecimal implements ExternalizeProxy {
56: public Object readObject(ObjectInput in) throws IOException {
57: if (in.read() == 0)
58: return null;
59: int cnt = in.read();
60: byte[] buf = new byte[cnt];
61: in.read(buf);
62: int scale = in.readInt();
63: BigInteger bi = new BigInteger(buf);
64: BigDecimal big = new BigDecimal(bi, scale);
65: return big;
66: }
67:
68: public void writeObject(ObjectOutput out, Object object)
69: throws IOException {
70: if (object == null) {
71: out.write(0);
72: } else {
73: out.write(1);
74: BigDecimal big = (BigDecimal) object;
75: //- //#ifdef JDK11
76: //- BigInteger bi = big.movePointRight(big.scale()).toBigInteger();
77: //#else
78: BigInteger bi = big.unscaledValue();
79: //#endif
80: byte[] buf = bi.toByteArray();
81: out.write(buf.length);
82: out.write(buf);
83: out.writeInt(big.scale());
84: }
85: }
86: }
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