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 * http://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    public static final int TP_SIZE = 1024;
026    public static final int NTREC = 10;
027    public static final int HIGH_DENSITY_NTREC = 32;
028    public static final int OFS_MAGIC = 60011;
029    public static final int NFS_MAGIC = 60012;
030    public static final int FS_UFS2_MAGIC = 0x19540119;
031    public static final int CHECKSUM = 84446;
032    public static final int LBLSIZE = 16;
033    public static final int NAMELEN = 64;
034
035    /* do not instantiate */
036    private DumpArchiveConstants() {
037    }
038
039    /**
040     * The type of tape segment.
041     */
042    public enum SEGMENT_TYPE {
043        TAPE(1),
044        INODE(2),
045        BITS(3),
046        ADDR(4),
047        END(5),
048        CLRI(6);
049
050        int code;
051
052        SEGMENT_TYPE(final int code) {
053            this.code = code;
054        }
055
056        public static SEGMENT_TYPE find(final int code) {
057            for (final SEGMENT_TYPE t : values()) {
058                if (t.code == code) {
059                    return t;
060                }
061            }
062
063            return null;
064        }
065    }
066
067    /**
068     * The type of compression.
069     */
070    public enum COMPRESSION_TYPE {
071        ZLIB(0),
072        BZLIB(1),
073        LZO(2);
074
075        int code;
076
077        COMPRESSION_TYPE(final int code) {
078            this.code = code;
079        }
080
081        public static COMPRESSION_TYPE find(final int code) {
082            for (final COMPRESSION_TYPE t : values()) {
083                if (t.code == code) {
084                    return t;
085                }
086            }
087
088            return null;
089        }
090    }
091}