1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20 package org.apache.commons.compress.compressors.bzip2;
21
22 /**
23 * Constants for both the compress and decompress BZip2 classes.
24 */
25 interface BZip2Constants {
26
27 /**
28 * Constant {@value}.
29 */
30 int BASEBLOCKSIZE = 100_000;
31
32 /**
33 * Constant {@value}.
34 */
35 int MAX_ALPHA_SIZE = 258;
36
37 /**
38 * Constant {@value}.
39 */
40 int MAX_CODE_LEN = 23;
41
42 /**
43 * Constant {@value}.
44 */
45 int RUNA = 0;
46
47 /**
48 * Constant {@value}.
49 */
50 int RUNB = 1;
51
52 /**
53 * Constant {@value}.
54 */
55 int N_GROUPS = 6;
56
57 /**
58 * Constant {@value}.
59 */
60 int G_SIZE = 50;
61
62 /**
63 * Constant {@value}.
64 */
65 int N_ITERS = 4;
66
67 /**
68 * Constant {@value}.
69 */
70 int MAX_SELECTORS = 2 + 900_000 / G_SIZE;
71
72 /**
73 * Constant {@value}.
74 */
75 int NUM_OVERSHOOT_BYTES = 20;
76
77 }