| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed 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 com.android.apkzlib.zip; |
| |
| /** |
| * Type of data descriptor that an entry has. Data descriptors are used if the CRC and sizing data |
| * is not known when the data is being written and cannot be placed in the file's local header. |
| * In those cases, after the file data itself, a data descriptor is placed after the entry's |
| * contents. |
| * <p> |
| * While the zip specification says the data descriptor should be used but it is optional. We |
| * record also whether the data descriptor contained the 4-byte signature at the start of the |
| * block or not. |
| */ |
| public enum DataDescriptorType { |
| /** |
| * The entry has no data descriptor. |
| */ |
| NO_DATA_DESCRIPTOR(0), |
| |
| /** |
| * The entry has a data descriptor that does not contain a signature. |
| */ |
| DATA_DESCRIPTOR_WITHOUT_SIGNATURE(12), |
| |
| /** |
| * The entry has a data descriptor that contains a signature. |
| */ |
| DATA_DESCRIPTOR_WITH_SIGNATURE(16); |
| |
| /** |
| * The number of bytes the data descriptor spans. |
| */ |
| public int size; |
| |
| /** |
| * Creates a new data descriptor. |
| * |
| * @param size the number of bytes the data descriptor spans |
| */ |
| DataDescriptorType(int size) { |
| this.size = size; |
| } |
| } |