001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * https://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.commons.compress.archivers.dump; 020 021/** 022 * Various constants associated with dump archives. 023 */ 024public final class DumpArchiveConstants { 025 026 /** 027 * Enumerates compression types. 028 */ 029 public enum COMPRESSION_TYPE { 030 031 /** 032 * Compression code is -1. 033 */ 034 UNKNOWN(-1), 035 036 /** 037 * Compression code is 0. 038 */ 039 ZLIB(0), 040 041 /** 042 * Compression code is 1. 043 */ 044 BZLIB(1), 045 046 /** 047 * Compression code is 2. 048 */ 049 LZO(2); 050 051 /** 052 * Finds the matching enumeration value for the given code. 053 * 054 * @param code a code. 055 * @return a value, never null. 056 */ 057 public static COMPRESSION_TYPE find(final int code) { 058 for (final COMPRESSION_TYPE e : values()) { 059 if (e.code == code) { 060 return e; 061 } 062 } 063 return UNKNOWN; 064 } 065 066 final int code; 067 068 COMPRESSION_TYPE(final int code) { 069 this.code = code; 070 } 071 } 072 073 /** 074 * Enumerates the types of tape segment. 075 */ 076 public enum SEGMENT_TYPE { 077 078 /** 079 * TAPE with code 1. 080 */ 081 TAPE(1), 082 083 /** 084 * INODE with code 2. 085 */ 086 INODE(2), 087 088 /** 089 * BITS with code 3. 090 */ 091 BITS(3), 092 093 /** 094 * ADDR with code 4. 095 */ 096 ADDR(4), 097 098 /** 099 * END with code 5. 100 */ 101 END(5), 102 103 /** 104 * CLRI with code 6. 105 */ 106 CLRI(6); 107 108 /** 109 * Finds the matching enumeration value for the given code. 110 * 111 * @param code a code. 112 * @return a value, or null if not found. 113 */ 114 public static SEGMENT_TYPE find(final int code) { 115 for (final SEGMENT_TYPE e : values()) { 116 if (e.code == code) { 117 return e; 118 } 119 } 120 return null; 121 } 122 123 final int code; 124 125 SEGMENT_TYPE(final int code) { 126 this.code = code; 127 } 128 } 129 130 /** 131 * TP_SIZE value {@value}. 132 */ 133 public static final int TP_SIZE = 1024; 134 135 /** 136 * NTREC value {@value}. 137 */ 138 public static final int NTREC = 10; 139 140 /** 141 * HIGH_DENSITY_NTREC value {@value}. 142 */ 143 public static final int HIGH_DENSITY_NTREC = 32; 144 145 /** 146 * OFS_MAGIC value {@value}. 147 */ 148 public static final int OFS_MAGIC = 60011; 149 150 /** 151 * NFS_MAGIC value {@value}. 152 */ 153 public static final int NFS_MAGIC = 60012; 154 155 /** 156 * FS_UFS2_MAGIC value {@value}. 157 */ 158 public static final int FS_UFS2_MAGIC = 0x19540119; 159 160 /** 161 * CHECKSUM value {@value}. 162 */ 163 public static final int CHECKSUM = 84446; 164 165 /** 166 * LBLSIZE value {@value}. 167 */ 168 public static final int LBLSIZE = 16; 169 170 /** 171 * NAMELEN value {@value}. 172 */ 173 public static final int NAMELEN = 64; 174 175 /** Do not instantiate. */ 176 private DumpArchiveConstants() { 177 } 178}