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1   /*
2    * The Apache Software License, Version 1.1
3    *
4    * Copyright (c) 2001 The Apache Software Foundation.  All rights
5    * reserved.
6    *
7    * Redistribution and use in source and binary forms, with or without
8    * modification, are permitted provided that the following conditions
9    * are met:
10   *
11   * 1. Redistributions of source code must retain the above copyright
12   *    notice, this list of conditions and the following disclaimer.
13   *
14   * 2. Redistributions in binary form must reproduce the above copyright
15   *    notice, this list of conditions and the following disclaimer in
16   *    the documentation and/or other materials provided with the
17   *    distribution.
18   *
19   * 3. The end-user documentation included with the redistribution, if
20   *    any, must include the following acknowlegement:
21   *       "This product includes software developed by the
22   *        Apache Software Foundation (http://www.apache.org/)."
23   *    Alternately, this acknowlegement may appear in the software itself,
24   *    if and wherever such third-party acknowlegements normally appear.
25   *
26   * 4. The names "Ant" and "Apache Software
27   *    Foundation" must not be used to endorse or promote products derived
28   *    from this software without prior written permission. For written
29   *    permission, please contact apache@apache.org.
30   *
31   * 5. Products derived from this software may not be called "Apache"
32   *    nor may "Apache" appear in their names without prior written
33   *    permission of the Apache Group.
34   *
35   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46   * SUCH DAMAGE.
47   * ====================================================================
48   *
49   * This software consists of voluntary contributions made by many
50   * individuals on behalf of the Apache Software Foundation.  For more
51   * information on the Apache Software Foundation, please see
52   * <http://www.apache.org/>.
53   */
54  
55  /*
56   * This package is based on the work done by Keiron Liddle, Aftex Software
57   * <keiron@aftexsw.com> to whom the Ant project is very grateful for his
58   * great code.
59   */
60  
61  package com.jguild.jrpm.io.bzip2;
62  
63  /***
64   * Base class for both the compress and decompress classes. Holds common arrays,
65   * and static data.
66   * 
67   * @author <a href="mailto:keiron@aftexsw.com">Keiron Liddle</a>
68   */
69  interface BZip2Constants {
70      int BASE_BLOCK_SIZE = 100000;
71  
72      int MAX_ALPHA_SIZE = 258;
73  
74      int MAX_CODE_LEN = 23;
75  
76      int RUNA = 0;
77  
78      int RUNB = 1;
79  
80      int N_GROUPS = 6;
81  
82      int G_SIZE = 50;
83  
84      int N_ITERS = 4;
85  
86      int MAX_SELECTORS = (2 + (900000 / G_SIZE));
87  
88      int NUM_OVERSHOOT_BYTES = 20;
89  
90      int[] RAND_NUMS = new int[] { 619, 720, 127, 481, 931, 816, 813, 233, 566,
91              247, 985, 724, 205, 454, 863, 491, 741, 242, 949, 214, 733, 859,
92              335, 708, 621, 574, 73, 654, 730, 472, 419, 436, 278, 496, 867,
93              210, 399, 680, 480, 51, 878, 465, 811, 169, 869, 675, 611, 697,
94              867, 561, 862, 687, 507, 283, 482, 129, 807, 591, 733, 623, 150,
95              238, 59, 379, 684, 877, 625, 169, 643, 105, 170, 607, 520, 932,
96              727, 476, 693, 425, 174, 647, 73, 122, 335, 530, 442, 853, 695,
97              249, 445, 515, 909, 545, 703, 919, 874, 474, 882, 500, 594, 612,
98              641, 801, 220, 162, 819, 984, 589, 513, 495, 799, 161, 604, 958,
99              533, 221, 400, 386, 867, 600, 782, 382, 596, 414, 171, 516, 375,
100             682, 485, 911, 276, 98, 553, 163, 354, 666, 933, 424, 341, 533,
101             870, 227, 730, 475, 186, 263, 647, 537, 686, 600, 224, 469, 68,
102             770, 919, 190, 373, 294, 822, 808, 206, 184, 943, 795, 384, 383,
103             461, 404, 758, 839, 887, 715, 67, 618, 276, 204, 918, 873, 777,
104             604, 560, 951, 160, 578, 722, 79, 804, 96, 409, 713, 940, 652, 934,
105             970, 447, 318, 353, 859, 672, 112, 785, 645, 863, 803, 350, 139,
106             93, 354, 99, 820, 908, 609, 772, 154, 274, 580, 184, 79, 626, 630,
107             742, 653, 282, 762, 623, 680, 81, 927, 626, 789, 125, 411, 521,
108             938, 300, 821, 78, 343, 175, 128, 250, 170, 774, 972, 275, 999,
109             639, 495, 78, 352, 126, 857, 956, 358, 619, 580, 124, 737, 594,
110             701, 612, 669, 112, 134, 694, 363, 992, 809, 743, 168, 974, 944,
111             375, 748, 52, 600, 747, 642, 182, 862, 81, 344, 805, 988, 739, 511,
112             655, 814, 334, 249, 515, 897, 955, 664, 981, 649, 113, 974, 459,
113             893, 228, 433, 837, 553, 268, 926, 240, 102, 654, 459, 51, 686,
114             754, 806, 760, 493, 403, 415, 394, 687, 700, 946, 670, 656, 610,
115             738, 392, 760, 799, 887, 653, 978, 321, 576, 617, 626, 502, 894,
116             679, 243, 440, 680, 879, 194, 572, 640, 724, 926, 56, 204, 700,
117             707, 151, 457, 449, 797, 195, 791, 558, 945, 679, 297, 59, 87, 824,
118             713, 663, 412, 693, 342, 606, 134, 108, 571, 364, 631, 212, 174,
119             643, 304, 329, 343, 97, 430, 751, 497, 314, 983, 374, 822, 928,
120             140, 206, 73, 263, 980, 736, 876, 478, 430, 305, 170, 514, 364,
121             692, 829, 82, 855, 953, 676, 246, 369, 970, 294, 750, 807, 827,
122             150, 790, 288, 923, 804, 378, 215, 828, 592, 281, 565, 555, 710,
123             82, 896, 831, 547, 261, 524, 462, 293, 465, 502, 56, 661, 821, 976,
124             991, 658, 869, 905, 758, 745, 193, 768, 550, 608, 933, 378, 286,
125             215, 979, 792, 961, 61, 688, 793, 644, 986, 403, 106, 366, 905,
126             644, 372, 567, 466, 434, 645, 210, 389, 550, 919, 135, 780, 773,
127             635, 389, 707, 100, 626, 958, 165, 504, 920, 176, 193, 713, 857,
128             265, 203, 50, 668, 108, 645, 990, 626, 197, 510, 357, 358, 850,
129             858, 364, 936, 638 };
130 }