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 }