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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.resolver.examples;
20  
21  import org.apache.maven.resolver.examples.util.Booter;
22  import org.eclipse.aether.DefaultRepositorySystemSession;
23  import org.eclipse.aether.RepositorySystem;
24  import org.eclipse.aether.artifact.Artifact;
25  import org.eclipse.aether.artifact.DefaultArtifact;
26  import org.eclipse.aether.collection.CollectRequest;
27  import org.eclipse.aether.collection.CollectResult;
28  import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
29  import org.eclipse.aether.resolution.ArtifactDescriptorResult;
30  import org.eclipse.aether.util.graph.manager.DependencyManagerUtils;
31  import org.eclipse.aether.util.graph.transformer.ConflictResolver;
32  
33  /**
34   * Visualizes the transitive dependencies of an artifact similar to m2e's dependency hierarchy view.
35   */
36  public class GetDependencyHierarchy {
37  
38      /**
39       * Main.
40       * @param args
41       * @throws Exception
42       */
43      public static void main(String[] args) throws Exception {
44          System.out.println("------------------------------------------------------------");
45          System.out.println(GetDependencyHierarchy.class.getSimpleName());
46  
47          RepositorySystem system = Booter.newRepositorySystem(Booter.selectFactory(args));
48  
49          DefaultRepositorySystemSession session = Booter.newRepositorySystemSession(system);
50  
51          session.setConfigProperty(ConflictResolver.CONFIG_PROP_VERBOSE, true);
52          session.setConfigProperty(DependencyManagerUtils.CONFIG_PROP_VERBOSE, true);
53  
54          Artifact artifact = new DefaultArtifact("org.apache.maven:maven-resolver-provider:3.6.1");
55  
56          ArtifactDescriptorRequest descriptorRequest = new ArtifactDescriptorRequest();
57          descriptorRequest.setArtifact(artifact);
58          descriptorRequest.setRepositories(Booter.newRepositories(system, session));
59          ArtifactDescriptorResult descriptorResult = system.readArtifactDescriptor(session, descriptorRequest);
60  
61          CollectRequest collectRequest = new CollectRequest();
62          collectRequest.setRootArtifact(descriptorResult.getArtifact());
63          collectRequest.setDependencies(descriptorResult.getDependencies());
64          collectRequest.setManagedDependencies(descriptorResult.getManagedDependencies());
65          collectRequest.setRepositories(descriptorRequest.getRepositories());
66  
67          CollectResult collectResult = system.collectDependencies(session, collectRequest);
68  
69          collectResult.getRoot().accept(Booter.DUMPER_SOUT);
70      }
71  }