| // 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; |
| |
| import java.util.Arrays; |
| |
| /** |
| * Holds an array of bytes, implementing {@link #equals(Object)}, {@link #hashCode()} with deep |
| * comparisons. This is intended primarily to allow raw, uninterpreted paths from |
| * {@link MinimalZipEntry#getFileNameBytes()} to be used as map keys safely. |
| */ |
| public class ByteArrayHolder { |
| /** |
| * The backing byte array. |
| */ |
| private final byte[] data; |
| |
| /** |
| * Construct a new wrapper around the specified bytes. |
| * @param data the byte array |
| */ |
| public ByteArrayHolder(byte[] data) { |
| this.data = data; |
| } |
| |
| /** |
| * Returns the actual byte array that backs the text. |
| * @return the array |
| */ |
| public byte[] getData() { |
| return data; |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + Arrays.hashCode(data); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) return true; |
| if (obj == null) return false; |
| if (getClass() != obj.getClass()) return false; |
| ByteArrayHolder other = (ByteArrayHolder) obj; |
| if (!Arrays.equals(data, other.data)) return false; |
| return true; |
| } |
| } |