View Javadoc
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.zip;
20  
21  import java.util.zip.ZipException;
22  
23  /**
24   * Controls details of parsing ZIP extra fields.
25   *
26   * @since 1.19
27   */
28  public interface ExtraFieldParsingBehavior extends UnparseableExtraFieldBehavior {
29  
30      /**
31       * Creates an instance of ZipExtraField for the given id.
32       * <p>
33       * A good default implementation would be {@link ExtraFieldUtils#createExtraField}.
34       * </p>
35       *
36       * @param headerId the id for the extra field
37       * @return an instance of ZipExtraField, must not be {@code null}
38       * @throws ZipException           if an error occurs
39       * @throws InstantiationException if unable to instantiate the class, not thrown by Commons Compress.
40       * @throws IllegalAccessException if not allowed to instantiate the class, not thrown by Commons Compress.
41       */
42      ZipExtraField createExtraField(ZipShort headerId) throws ZipException, InstantiationException, IllegalAccessException;
43  
44      /**
45       * Fills in the extra field data for a single extra field.
46       * <p>
47       * A good default implementation would be {@link ExtraFieldUtils#fillExtraField}.
48       * </p>
49       *
50       * @param field the extra field instance to fill
51       * @param data  the array of extra field data
52       * @param off   offset into data where this field's data starts
53       * @param len   the length of this field's data
54       * @param local whether the extra field data stems from the local file header. If this is false then the data is part if the central directory header extra
55       *              data.
56       * @return the filled field. Usually this is the same as {@code
57       * field} but it could be a replacement extra field as well. Must not be {@code null}.
58       * @throws ZipException if an error occurs
59       */
60      ZipExtraField fill(ZipExtraField field, byte[] data, int off, int len, boolean local) throws ZipException;
61  }