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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  import java.util.BitSet;
22  
23  final class Archive {
24  
25      private static String lengthOf(final long[] a) {
26          return a == null ? "(null)" : Integer.toString(a.length);
27      }
28  
29      private static String lengthOf(final Object[] a) {
30          return a == null ? "(null)" : Integer.toString(a.length);
31      }
32  
33      /** Offset from beginning of file + SIGNATURE_HEADER_SIZE to packed streams. */
34      long packPos;
35  
36      /** Size of each packed stream. */
37      long[] packSizes = {};
38  
39      /** Whether each particular packed streams has a CRC. */
40      BitSet packCrcsDefined;
41  
42      /** CRCs for each packed stream, valid only if that packed stream has one. */
43      long[] packCrcs;
44  
45      /** Properties of solid compression blocks. */
46      Folder[] folders = Folder.EMPTY_FOLDER_ARRAY;
47  
48      /** Temporary properties for non-empty files (subsumed into the files array later). */
49      SubStreamsInfo subStreamsInfo;
50  
51      /** The files and directories in the archive. */
52      SevenZArchiveEntry[] files = SevenZArchiveEntry.EMPTY_SEVEN_Z_ARCHIVE_ENTRY_ARRAY;
53  
54      /** Mapping between folders, files and streams. */
55      StreamMap streamMap;
56  
57      @Override
58      public String toString() {
59          return "Archive with packed streams starting at offset " + packPos + ", " + lengthOf(packSizes) + " pack sizes, " + lengthOf(packCrcs) + " CRCs, "
60                  + lengthOf(folders) + " folders, " + lengthOf(files) + " files and " + streamMap;
61      }
62  }