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.apache.maven.resolver.examples.resolver; 020 021import java.io.ByteArrayOutputStream; 022import java.io.PrintStream; 023import java.io.UnsupportedEncodingException; 024import java.nio.charset.StandardCharsets; 025 026import org.apache.maven.resolver.examples.util.Booter; 027import org.eclipse.aether.DefaultRepositorySystemSession; 028import org.eclipse.aether.RepositorySystem; 029import org.eclipse.aether.RepositorySystemSession; 030import org.eclipse.aether.artifact.Artifact; 031import org.eclipse.aether.artifact.DefaultArtifact; 032import org.eclipse.aether.collection.CollectRequest; 033import org.eclipse.aether.deployment.DeployRequest; 034import org.eclipse.aether.deployment.DeploymentException; 035import org.eclipse.aether.graph.Dependency; 036import org.eclipse.aether.graph.DependencyNode; 037import org.eclipse.aether.installation.InstallRequest; 038import org.eclipse.aether.installation.InstallationException; 039import org.eclipse.aether.repository.Authentication; 040import org.eclipse.aether.repository.LocalRepository; 041import org.eclipse.aether.repository.RemoteRepository; 042import org.eclipse.aether.resolution.DependencyRequest; 043import org.eclipse.aether.resolution.DependencyResolutionException; 044import org.eclipse.aether.util.graph.visitor.DependencyGraphDumper; 045import org.eclipse.aether.util.graph.visitor.PreorderNodeListGenerator; 046import org.eclipse.aether.util.repository.AuthenticationBuilder; 047 048/** 049 */ 050public class Resolver { 051 private final String remoteRepository; 052 053 private final RepositorySystem repositorySystem; 054 055 private final LocalRepository localRepository; 056 057 public Resolver(String factory, String remoteRepository, String localRepository) { 058 this.remoteRepository = remoteRepository; 059 this.repositorySystem = Booter.newRepositorySystem(factory); 060 this.localRepository = new LocalRepository(localRepository); 061 } 062 063 private RepositorySystemSession newSession() { 064 DefaultRepositorySystemSession session = Booter.newRepositorySystemSession(repositorySystem); 065 session.setLocalRepositoryManager(repositorySystem.newLocalRepositoryManager(session, localRepository)); 066 session.setTransferListener(null); 067 session.setRepositoryListener(null); 068 return session; 069 } 070 071 public ResolverResult resolve(String groupId, String artifactId, String version) 072 throws DependencyResolutionException { 073 RepositorySystemSession session = newSession(); 074 Dependency dependency = new Dependency(new DefaultArtifact(groupId, artifactId, "", "jar", version), "runtime"); 075 RemoteRepository central = new RemoteRepository.Builder("central", "default", remoteRepository).build(); 076 077 CollectRequest collectRequest = new CollectRequest(); 078 collectRequest.setRoot(dependency); 079 collectRequest.addRepository(central); 080 081 DependencyRequest dependencyRequest = new DependencyRequest(); 082 dependencyRequest.setCollectRequest(collectRequest); 083 084 DependencyNode rootNode = 085 repositorySystem.resolveDependencies(session, dependencyRequest).getRoot(); 086 087 StringBuilder dump = new StringBuilder(); 088 displayTree(rootNode, dump); 089 System.out.println("Tree:"); 090 System.out.println(dump); 091 092 PreorderNodeListGenerator nlg = new PreorderNodeListGenerator(); 093 rootNode.accept(nlg); 094 095 return new ResolverResult(rootNode, nlg.getFiles(), nlg.getClassPath()); 096 } 097 098 public void install(Artifact artifact, Artifact pom) throws InstallationException { 099 RepositorySystemSession session = newSession(); 100 101 InstallRequest installRequest = new InstallRequest(); 102 installRequest.addArtifact(artifact).addArtifact(pom); 103 104 repositorySystem.install(session, installRequest); 105 } 106 107 public void deploy(Artifact artifact, Artifact pom, String remoteRepository) throws DeploymentException { 108 RepositorySystemSession session = newSession(); 109 110 Authentication auth = new AuthenticationBuilder() 111 .addUsername("admin") 112 .addPassword("admin123") 113 .build(); 114 RemoteRepository nexus = new RemoteRepository.Builder("nexus", "default", remoteRepository) 115 .setAuthentication(auth) 116 .build(); 117 118 DeployRequest deployRequest = new DeployRequest(); 119 deployRequest.addArtifact(artifact).addArtifact(pom); 120 deployRequest.setRepository(nexus); 121 122 repositorySystem.deploy(session, deployRequest); 123 } 124 125 private void displayTree(DependencyNode node, StringBuilder sb) { 126 try { 127 ByteArrayOutputStream os = new ByteArrayOutputStream(1024); 128 PrintStream ps = new PrintStream(os, true, StandardCharsets.UTF_8.name()); 129 node.accept(new DependencyGraphDumper(ps::println)); 130 sb.append(os); 131 } catch (UnsupportedEncodingException e) { 132 throw new RuntimeException(e); 133 } 134 } 135}