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1   package org.apache.maven.resolver.examples;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   * 
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   * 
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.apache.maven.resolver.examples.util.Booter;
23  import org.apache.maven.resolver.examples.util.ConsoleDependencyGraphDumper;
24  import org.eclipse.aether.DefaultRepositorySystemSession;
25  import org.eclipse.aether.RepositorySystem;
26  import org.eclipse.aether.artifact.Artifact;
27  import org.eclipse.aether.artifact.DefaultArtifact;
28  import org.eclipse.aether.collection.CollectRequest;
29  import org.eclipse.aether.collection.CollectResult;
30  import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
31  import org.eclipse.aether.resolution.ArtifactDescriptorResult;
32  import org.eclipse.aether.util.graph.manager.DependencyManagerUtils;
33  import org.eclipse.aether.util.graph.transformer.ConflictResolver;
34  
35  /**
36   * Visualizes the transitive dependencies of an artifact similar to m2e's dependency hierarchy view.
37   */
38  public class GetDependencyHierarchy
39  {
40  
41      public static void main( String[] args )
42          throws Exception
43      {
44          System.out.println( "------------------------------------------------------------" );
45          System.out.println( GetDependencyHierarchy.class.getSimpleName() );
46  
47          RepositorySystem system = Booter.newRepositorySystem();
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-aether-provider:3.1.0" );
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( new ConsoleDependencyGraphDumper() );
70      }
71  
72  }