001/* 002 * Copyright 2012-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.cli.compiler.grape; 018 019import java.io.File; 020import java.util.Arrays; 021 022import org.eclipse.aether.DefaultRepositorySystemSession; 023import org.eclipse.aether.RepositorySystem; 024import org.eclipse.aether.repository.LocalRepository; 025import org.eclipse.aether.repository.LocalRepositoryManager; 026import org.eclipse.aether.repository.ProxySelector; 027import org.eclipse.aether.util.repository.JreProxySelector; 028 029import org.springframework.util.StringUtils; 030 031/** 032 * A {@link RepositorySystemSessionAutoConfiguration} that, in the absence of any 033 * configuration, applies sensible defaults. 034 * 035 * @author Andy Wilkinson 036 */ 037public class DefaultRepositorySystemSessionAutoConfiguration 038 implements RepositorySystemSessionAutoConfiguration { 039 040 @Override 041 public void apply(DefaultRepositorySystemSession session, 042 RepositorySystem repositorySystem) { 043 044 if (session.getLocalRepositoryManager() == null) { 045 LocalRepository localRepository = new LocalRepository(getM2RepoDirectory()); 046 LocalRepositoryManager localRepositoryManager = repositorySystem 047 .newLocalRepositoryManager(session, localRepository); 048 session.setLocalRepositoryManager(localRepositoryManager); 049 } 050 051 ProxySelector existing = session.getProxySelector(); 052 if (existing == null || !(existing instanceof CompositeProxySelector)) { 053 JreProxySelector fallback = new JreProxySelector(); 054 ProxySelector selector = (existing != null) 055 ? new CompositeProxySelector(Arrays.asList(existing, fallback)) 056 : fallback; 057 session.setProxySelector(selector); 058 } 059 } 060 061 private File getM2RepoDirectory() { 062 return new File(getDefaultM2HomeDirectory(), "repository"); 063 } 064 065 private File getDefaultM2HomeDirectory() { 066 String mavenRoot = System.getProperty("maven.home"); 067 if (StringUtils.hasLength(mavenRoot)) { 068 return new File(mavenRoot); 069 } 070 return new File(System.getProperty("user.home"), ".m2"); 071 } 072 073}