| // Copyright 2016 Google Inc. All rights reserved. |
| // |
| // 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.google.archivepatcher.generator; |
| |
| /** |
| * Trivial struct containing the critical data about the central directory: the number of entries |
| * it contains, the position within the file at which it starts, and its length. |
| */ |
| class MinimalCentralDirectoryMetadata { |
| /** |
| * The number of entries in the central directory. |
| */ |
| private final int numEntriesInCentralDirectory; |
| |
| /** |
| * The file offset of the first byte of the central directory. |
| */ |
| private final long offsetOfCentralDirectory; |
| |
| /** |
| * The length of the central directory, in bytes. |
| */ |
| private final long lengthOfCentralDirectory; |
| |
| /** |
| * Constructs a new metadata object with the specified values |
| * @param numEntriesInCentralDirectory the number of entries in the central directory |
| * @param offsetOfCentralDirectory the file offset of the first byte of the central directory |
| * @param lengthOfCentralDirectory the length of the central directory, in bytes |
| */ |
| MinimalCentralDirectoryMetadata( |
| int numEntriesInCentralDirectory, |
| long offsetOfCentralDirectory, |
| long lengthOfCentralDirectory) { |
| this.numEntriesInCentralDirectory = numEntriesInCentralDirectory; |
| this.offsetOfCentralDirectory = offsetOfCentralDirectory; |
| this.lengthOfCentralDirectory = lengthOfCentralDirectory; |
| } |
| |
| /** |
| * Returns the number of entries in the central directory. |
| * @return as described |
| */ |
| public final int getNumEntriesInCentralDirectory() { |
| return numEntriesInCentralDirectory; |
| } |
| |
| /** |
| * Returns the file offset of the first byte of the central directory. |
| * @return as described |
| */ |
| public final long getOffsetOfCentralDirectory() { |
| return offsetOfCentralDirectory; |
| } |
| |
| /** |
| * Returns the length of the central directory, in bytes. |
| * @return as described |
| */ |
| public final long getLengthOfCentralDirectory() { |
| return lengthOfCentralDirectory; |
| } |
| } |