    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     */
    019    package org.apache.commons.compress.archivers.dump;
    020
    021    /**
    022     * Various constants associated with dump archives.
    023     */
    024    public 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            private SEGMENT_TYPE(int code) {
    053                this.code = code;
    054            }
    055
    056            public static SEGMENT_TYPE find(int code) {
    057                for (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            private COMPRESSION_TYPE(int code) {
    078                this.code = code;
    079            }
    080
    081            public static COMPRESSION_TYPE find(int code) {
    082                for (COMPRESSION_TYPE t : values()) {
    083                    if (t.code == code) {
    084                        return t;
    085                    }
    086                }
    087
    088                return null;
    089            }
    090        }
    091    }