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;
020
021import java.util.Collections;
022
023import org.apache.maven.resolver.examples.util.Booter;
024import org.eclipse.aether.RepositorySystem;
025import org.eclipse.aether.RepositorySystemSession.CloseableSession;
026import org.eclipse.aether.RepositorySystemSession.SessionBuilder;
027import org.eclipse.aether.artifact.Artifact;
028import org.eclipse.aether.artifact.DefaultArtifact;
029import org.eclipse.aether.collection.CollectRequest;
030import org.eclipse.aether.collection.CollectResult;
031import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
032import org.eclipse.aether.resolution.ArtifactDescriptorResult;
033import org.eclipse.aether.util.graph.manager.DependencyManagerUtils;
034import org.eclipse.aether.util.graph.transformer.ConflictResolver;
035import org.eclipse.aether.util.graph.visitor.DependencyGraphDumper;
036
037import static org.eclipse.aether.util.graph.visitor.DependencyGraphDumper.artifactProperties;
038import static org.eclipse.aether.util.graph.visitor.DependencyGraphDumper.defaultsWith;
039
040/**
041 * Visualizes the transitive dependencies of an artifact similar to m2e's dependency hierarchy view.
042 */
043public class GetDependencyHierarchy {
044
045    /**
046     * Main.
047     * @param args
048     * @throws Exception
049     */
050    public static void main(String[] args) throws Exception {
051        System.out.println("------------------------------------------------------------");
052        System.out.println(GetDependencyHierarchy.class.getSimpleName());
053
054        try (RepositorySystem system = Booter.newRepositorySystem(Booter.selectFactory(args))) {
055            SessionBuilder sessionBuilder = Booter.newRepositorySystemSession(system);
056            sessionBuilder.setConfigProperty(ConflictResolver.CONFIG_PROP_VERBOSE, true);
057            sessionBuilder.setConfigProperty(DependencyManagerUtils.CONFIG_PROP_VERBOSE, true);
058            try (CloseableSession session = sessionBuilder.build()) {
059                Artifact artifact = new DefaultArtifact("org.apache.maven:maven-resolver-provider:3.6.1");
060
061                ArtifactDescriptorRequest descriptorRequest = new ArtifactDescriptorRequest();
062                descriptorRequest.setArtifact(artifact);
063                descriptorRequest.setRepositories(Booter.newRepositories(system, session));
064                ArtifactDescriptorResult descriptorResult = system.readArtifactDescriptor(session, descriptorRequest);
065
066                CollectRequest collectRequest = new CollectRequest();
067                collectRequest.setRootArtifact(descriptorResult.getArtifact());
068                collectRequest.setDependencies(descriptorResult.getDependencies());
069                collectRequest.setManagedDependencies(descriptorResult.getManagedDependencies());
070                collectRequest.setRepositories(descriptorRequest.getRepositories());
071
072                CollectResult collectResult = system.collectDependencies(session, collectRequest);
073
074                collectResult
075                        .getRoot()
076                        .accept(new DependencyGraphDumper(
077                                System.out::println,
078                                defaultsWith(
079                                        Collections.singleton(artifactProperties(Collections.singleton("color"))))));
080            }
081        }
082    }
083}