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 package org.apache.commons.compress.archivers.sevenz;
20
21 /**
22 * Map between folders, files and streams.
23 */
24 final class StreamMap {
25
26 /**
27 * The first Archive.packStream index of each folder.
28 */
29 final int[] folderFirstPackStreamIndex;
30
31 /**
32 * Offset to beginning of this pack stream's data, relative to the beginning of the first pack stream.
33 */
34 final long[] packStreamOffsets;
35
36 /**
37 * Index of first file for each folder.
38 */
39 final int[] folderFirstFileIndex;
40
41 /**
42 * Index of folder for each file.
43 */
44 final int[] fileFolderIndex;
45
46 StreamMap(final int[] folderFirstPackStreamIndex, final long[] packStreamOffsets, final int[] folderFirstFileIndex, final int[] fileFolderIndex) {
47 this.folderFirstPackStreamIndex = folderFirstPackStreamIndex;
48 this.packStreamOffsets = packStreamOffsets;
49 this.folderFirstFileIndex = folderFirstFileIndex;
50 this.fileFolderIndex = fileFolderIndex;
51 }
52
53 @Override
54 public String toString() {
55 return "StreamMap with indices of " + folderFirstPackStreamIndex.length + " folders, offsets of " + packStreamOffsets.length + " packed streams,"
56 + " first files of " + folderFirstFileIndex.length + " folders and folder indices for " + fileFolderIndex.length + " files";
57 }
58 }