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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.eclipse.aether.RepositorySystem;
24  import org.eclipse.aether.RepositorySystemSession;
25  import org.eclipse.aether.artifact.Artifact;
26  import org.eclipse.aether.artifact.DefaultArtifact;
27  import org.eclipse.aether.resolution.VersionRangeRequest;
28  import org.eclipse.aether.resolution.VersionRangeResult;
29  import org.eclipse.aether.version.Version;
30  
31  /**
32   * Determines the newest version of an artifact.
33   */
34  public class FindNewestVersion
35  {
36  
37      public static void main( String[] args )
38          throws Exception
39      {
40          System.out.println( "------------------------------------------------------------" );
41          System.out.println( FindNewestVersion.class.getSimpleName() );
42  
43          RepositorySystem system = Booter.newRepositorySystem();
44  
45          RepositorySystemSession session = Booter.newRepositorySystemSession( system );
46  
47          Artifact artifact = new DefaultArtifact( "org.eclipse.aether:aether-util:[0,)" );
48  
49          VersionRangeRequest rangeRequest = new VersionRangeRequest();
50          rangeRequest.setArtifact( artifact );
51          rangeRequest.setRepositories( Booter.newRepositories( system, session ) );
52  
53          VersionRangeResult rangeResult = system.resolveVersionRange( session, rangeRequest );
54  
55          Version newestVersion = rangeResult.getHighestVersion();
56  
57          System.out.println( "Newest version " + newestVersion + " from repository "
58              + rangeResult.getRepository( newestVersion ) );
59      }
60  
61  }