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Apache Commons Compress defines an API for working with compression and archive formats. These include bzip2, gzip, pack200, LZMA, XZ, Snappy, traditional Unix Compress, DEFLATE, DEFLATE64, LZ4, Brotli, Zstandard and ar, cpio, jar, tar, zip, dump, 7z, arj.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.commons.compress.archivers.dump;

/**
 * Various constants associated with dump archives.
 */
public final class DumpArchiveConstants {
    public static final int TP_SIZE = 1024;
    public static final int NTREC = 10;
    public static final int HIGH_DENSITY_NTREC = 32;
    public static final int OFS_MAGIC = 60011;
    public static final int NFS_MAGIC = 60012;
    public static final int FS_UFS2_MAGIC = 0x19540119;
    public static final int CHECKSUM = 84446;
    public static final int LBLSIZE = 16;
    public static final int NAMELEN = 64;

    /* do not instantiate */
    private DumpArchiveConstants() {
    }

    /**
     * The type of tape segment.
     */
    public enum SEGMENT_TYPE {
        TAPE(1),
        INODE(2),
        BITS(3),
        ADDR(4),
        END(5),
        CLRI(6);

        int code;

        private SEGMENT_TYPE(int code) {
            this.code = code;
        }

        public static SEGMENT_TYPE find(int code) {
            for (SEGMENT_TYPE t : values()) {
                if (t.code == code) {
                    return t;
                }
            }

            return null;
        }
    }

    /**
     * The type of compression.
     */
    public enum COMPRESSION_TYPE {
        ZLIB(0),
        BZLIB(1),
        LZO(2);

        int code;

        private COMPRESSION_TYPE(int code) {
            this.code = code;
        }

        public static COMPRESSION_TYPE find(int code) {
            for (COMPRESSION_TYPE t : values()) {
                if (t.code == code) {
                    return t;
                }
            }

            return null;
        }
    }
}