| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.maven.buildcache.hash; |
| |
| import java.io.IOException; |
| import java.nio.channels.FileChannel; |
| import java.nio.file.Path; |
| |
| import static java.nio.channels.FileChannel.MapMode.READ_ONLY; |
| import static java.nio.file.StandardOpenOption.READ; |
| |
| /** |
| * XXMM |
| */ |
| public class XXMM implements Hash.Factory |
| { |
| |
| private static final ThreadLocal<CloseableBuffer> BUFFER = new ThreadLocal<>(); |
| |
| @Override |
| public String getAlgorithm() |
| { |
| return "XXMM"; |
| } |
| |
| @Override |
| public Hash.Algorithm algorithm() |
| { |
| return new Algorithm(); |
| } |
| |
| @Override |
| public Hash.Checksum checksum( int count ) |
| { |
| return new XX.Checksum( ThreadLocalBuffer.get( BUFFER, XX.capacity( count ) ) ); |
| } |
| |
| private static class Algorithm extends XX.Algorithm |
| { |
| |
| @Override |
| public byte[] hash( Path path ) throws IOException |
| { |
| try ( FileChannel channel = FileChannel.open( path, READ ); |
| CloseableBuffer buffer = CloseableBuffer.mappedBuffer( channel, READ_ONLY ) ) |
| { |
| return HexUtils.toByteArray( XX.INSTANCE.hashBytes( buffer.getBuffer() ) ); |
| } |
| } |
| } |
| } |