001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.eclipse.aether.transport.jdk; 020 021import javax.inject.Inject; 022import javax.inject.Named; 023 024import org.eclipse.aether.RepositorySystemSession; 025import org.eclipse.aether.repository.RemoteRepository; 026import org.eclipse.aether.spi.connector.transport.http.ChecksumExtractor; 027import org.eclipse.aether.spi.connector.transport.http.HttpTransporter; 028import org.eclipse.aether.spi.connector.transport.http.HttpTransporterFactory; 029import org.eclipse.aether.transfer.NoTransporterException; 030 031import static java.util.Objects.requireNonNull; 032 033/** 034 * JDK Transport factory: on Java11+ it works. 035 * 036 * @since 2.0.0 037 */ 038@Named(JdkTransporterFactory.NAME) 039public final class JdkTransporterFactory implements HttpTransporterFactory { 040 public static final String NAME = "jdk"; 041 042 private float priority = 10.0f; 043 044 private final ChecksumExtractor checksumExtractor; 045 046 @Inject 047 public JdkTransporterFactory(ChecksumExtractor checksumExtractor) { 048 this.checksumExtractor = requireNonNull(checksumExtractor, "checksumExtractor"); 049 } 050 051 @Override 052 public float getPriority() { 053 return priority; 054 } 055 056 public JdkTransporterFactory setPriority(float priority) { 057 this.priority = priority; 058 return this; 059 } 060 061 @Override 062 public HttpTransporter newInstance(RepositorySystemSession session, RemoteRepository repository) 063 throws NoTransporterException { 064 requireNonNull(session, "session cannot be null"); 065 requireNonNull(repository, "repository cannot be null"); 066 067 if (!"http".equalsIgnoreCase(repository.getProtocol()) && !"https".equalsIgnoreCase(repository.getProtocol())) { 068 throw new NoTransporterException(repository, "Only HTTP/HTTPS is supported"); 069 } 070 071 return new JdkTransporter(session, repository, javaVersion(), checksumExtractor); 072 } 073 074 private static int javaVersion() { 075 try { 076 final String version = System.getProperty("java.version", "11" /* default must pass */); 077 final int dot = version.indexOf('.'); 078 final int hyphen = version.indexOf('-'); 079 final int sep = (dot > 0 && dot < hyphen || hyphen < 0) ? dot : hyphen; 080 return Integer.parseInt(sep > 0 ? version.substring(0, sep) : version); 081 } catch (final NumberFormatException nfe) { 082 return 11; // cannot be a pre-java 11 version so let it pass 083 } 084 } 085}