001package org.apache.maven.resolver.examples;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 * 
012 *  http://www.apache.org/licenses/LICENSE-2.0
013 * 
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.apache.maven.resolver.examples.util.Booter;
023import org.apache.maven.resolver.examples.util.ConsoleDependencyGraphDumper;
024import org.eclipse.aether.DefaultRepositorySystemSession;
025import org.eclipse.aether.RepositorySystem;
026import org.eclipse.aether.artifact.Artifact;
027import org.eclipse.aether.artifact.DefaultArtifact;
028import org.eclipse.aether.collection.CollectRequest;
029import org.eclipse.aether.collection.CollectResult;
030import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
031import org.eclipse.aether.resolution.ArtifactDescriptorResult;
032import org.eclipse.aether.util.graph.manager.DependencyManagerUtils;
033import org.eclipse.aether.util.graph.transformer.ConflictResolver;
034
035/**
036 * Visualizes the transitive dependencies of an artifact similar to m2e's dependency hierarchy view.
037 */
038public class GetDependencyHierarchy
039{
040
041    /**
042     * Main.
043     * @param args
044     * @throws Exception
045     */
046    public static void main( String[] args )
047        throws Exception
048    {
049        System.out.println( "------------------------------------------------------------" );
050        System.out.println( GetDependencyHierarchy.class.getSimpleName() );
051
052        RepositorySystem system = Booter.newRepositorySystem();
053
054        DefaultRepositorySystemSession session = Booter.newRepositorySystemSession( system );
055
056        session.setConfigProperty( ConflictResolver.CONFIG_PROP_VERBOSE, true );
057        session.setConfigProperty( DependencyManagerUtils.CONFIG_PROP_VERBOSE, true );
058
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.getRoot().accept( new ConsoleDependencyGraphDumper() );
075    }
076
077}