01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package org.apache.commons.vfs.provider.bzip2;
19:
20: /*
21: * This package is based on the work done by Keiron Liddle, Aftex Software
22: * <keiron@aftexsw.com> to whom the Ant project is very grateful for his
23: * great code.
24: */
25:
26: /**
27: * Base class for both the compress and decompress classes. Holds common arrays,
28: * and static data.
29: *
30: * @author <a href="mailto:keiron@aftexsw.com">Keiron Liddle</a>
31: */
32: interface BZip2Constants {
33: int BASE_BLOCK_SIZE = 100000;
34: int MAX_ALPHA_SIZE = 258;
35: int MAX_CODE_LEN = 23;
36: int RUNA = 0;
37: int RUNB = 1;
38: int N_GROUPS = 6;
39: int G_SIZE = 50;
40: int N_ITERS = 4;
41: int MAX_SELECTORS = (2 + (900000 / G_SIZE));
42: int NUM_OVERSHOOT_BYTES = 20;
43:
44: int[] RAND_NUMS = new int[] { 619, 720, 127, 481, 931, 816, 813,
45: 233, 566, 247, 985, 724, 205, 454, 863, 491, 741, 242, 949,
46: 214, 733, 859, 335, 708, 621, 574, 73, 654, 730, 472, 419,
47: 436, 278, 496, 867, 210, 399, 680, 480, 51, 878, 465, 811,
48: 169, 869, 675, 611, 697, 867, 561, 862, 687, 507, 283, 482,
49: 129, 807, 591, 733, 623, 150, 238, 59, 379, 684, 877, 625,
50: 169, 643, 105, 170, 607, 520, 932, 727, 476, 693, 425, 174,
51: 647, 73, 122, 335, 530, 442, 853, 695, 249, 445, 515, 909,
52: 545, 703, 919, 874, 474, 882, 500, 594, 612, 641, 801, 220,
53: 162, 819, 984, 589, 513, 495, 799, 161, 604, 958, 533, 221,
54: 400, 386, 867, 600, 782, 382, 596, 414, 171, 516, 375, 682,
55: 485, 911, 276, 98, 553, 163, 354, 666, 933, 424, 341, 533,
56: 870, 227, 730, 475, 186, 263, 647, 537, 686, 600, 224, 469,
57: 68, 770, 919, 190, 373, 294, 822, 808, 206, 184, 943, 795,
58: 384, 383, 461, 404, 758, 839, 887, 715, 67, 618, 276, 204,
59: 918, 873, 777, 604, 560, 951, 160, 578, 722, 79, 804, 96,
60: 409, 713, 940, 652, 934, 970, 447, 318, 353, 859, 672, 112,
61: 785, 645, 863, 803, 350, 139, 93, 354, 99, 820, 908, 609,
62: 772, 154, 274, 580, 184, 79, 626, 630, 742, 653, 282, 762,
63: 623, 680, 81, 927, 626, 789, 125, 411, 521, 938, 300, 821,
64: 78, 343, 175, 128, 250, 170, 774, 972, 275, 999, 639, 495,
65: 78, 352, 126, 857, 956, 358, 619, 580, 124, 737, 594, 701,
66: 612, 669, 112, 134, 694, 363, 992, 809, 743, 168, 974, 944,
67: 375, 748, 52, 600, 747, 642, 182, 862, 81, 344, 805, 988,
68: 739, 511, 655, 814, 334, 249, 515, 897, 955, 664, 981, 649,
69: 113, 974, 459, 893, 228, 433, 837, 553, 268, 926, 240, 102,
70: 654, 459, 51, 686, 754, 806, 760, 493, 403, 415, 394, 687,
71: 700, 946, 670, 656, 610, 738, 392, 760, 799, 887, 653, 978,
72: 321, 576, 617, 626, 502, 894, 679, 243, 440, 680, 879, 194,
73: 572, 640, 724, 926, 56, 204, 700, 707, 151, 457, 449, 797,
74: 195, 791, 558, 945, 679, 297, 59, 87, 824, 713, 663, 412,
75: 693, 342, 606, 134, 108, 571, 364, 631, 212, 174, 643, 304,
76: 329, 343, 97, 430, 751, 497, 314, 983, 374, 822, 928, 140,
77: 206, 73, 263, 980, 736, 876, 478, 430, 305, 170, 514, 364,
78: 692, 829, 82, 855, 953, 676, 246, 369, 970, 294, 750, 807,
79: 827, 150, 790, 288, 923, 804, 378, 215, 828, 592, 281, 565,
80: 555, 710, 82, 896, 831, 547, 261, 524, 462, 293, 465, 502,
81: 56, 661, 821, 976, 991, 658, 869, 905, 758, 745, 193, 768,
82: 550, 608, 933, 378, 286, 215, 979, 792, 961, 61, 688, 793,
83: 644, 986, 403, 106, 366, 905, 644, 372, 567, 466, 434, 645,
84: 210, 389, 550, 919, 135, 780, 773, 635, 389, 707, 100, 626,
85: 958, 165, 504, 920, 176, 193, 713, 857, 265, 203, 50, 668,
86: 108, 645, 990, 626, 197, 510, 357, 358, 850, 858, 364, 936,
87: 638 };
88: }
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