1 //////////////////////////////////////////////////////////////////////////////
2 // dexterIM - Instant Messaging Framework
3 // Copyright (C) 2003 Christoph Walcher
4 //
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; either version 2 of the License, or
8 // (at your option) any later version.
9 //
10 // This program is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
14 //
15 // You should have received a copy of the GNU General Public License
16 // along with this program; if not, write to the Free Software
17 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 //////////////////////////////////////////////////////////////////////////////
19 package net.sf.dexterim.oscar.entity;
20
21 /***
22 * @author christoph
23 * TODO Document
24 */
25 public abstract class ByteBase implements ByteBased {
26 private int value;
27
28 protected ByteBase(int value) {
29 this.value = value;
30 }
31
32 protected ByteBase(byte[] data) {
33 this.value = 0;
34
35 for (int i = getLength() - 1; i >= 0; i--) {
36 value += (data[i] & 0xFF) << ((data.length - i - 1) * 8);
37 }
38 }
39
40 public byte[] toByteArray() {
41 byte returnValue[] = new byte[getLength()];
42
43 int tmp = value;
44
45 for (int i = getLength() - 1; i >= 0; i--) {
46 returnValue[i] = (byte) (tmp & 0xFF);
47
48 tmp = tmp >>> 8;
49 }
50
51 return returnValue;
52 }
53
54 public int getValue() {
55 return value;
56 }
57 }