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 * http://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.maven.buildcache.hash;
20
21 import java.io.IOException;
22 import java.nio.file.Path;
23
24 /**
25 * Hash
26 */
27 public class Hash {
28
29 /**
30 * Algorithm
31 */
32 public interface Algorithm {
33
34 byte[] hash(byte[] array);
35
36 byte[] hash(Path path) throws IOException;
37 }
38
39 /**
40 * accumulates states and should be completed by {@link #digest()}
41 */
42 public interface Checksum {
43
44 void update(byte[] hash);
45
46 byte[] digest();
47 }
48
49 /**
50 * Factory
51 */
52 public interface Factory {
53
54 String getAlgorithm();
55
56 Algorithm algorithm();
57
58 Checksum checksum(int count);
59 }
60 }