1 package org.apache.maven.resolver.examples.maven;
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 java.util.List;
23
24 import org.apache.maven.plugin.AbstractMojo;
25 import org.apache.maven.plugin.MojoExecutionException;
26 import org.apache.maven.plugin.MojoFailureException;
27 import org.eclipse.aether.RepositorySystem;
28 import org.eclipse.aether.RepositorySystemSession;
29 import org.eclipse.aether.artifact.Artifact;
30 import org.eclipse.aether.artifact.DefaultArtifact;
31 import org.eclipse.aether.repository.RemoteRepository;
32 import org.eclipse.aether.resolution.ArtifactRequest;
33 import org.eclipse.aether.resolution.ArtifactResolutionException;
34 import org.eclipse.aether.resolution.ArtifactResult;
35
36 /**
37 * Resolves a single artifact (not including its transitive dependencies).
38 *
39 * @goal resolve-artifact
40 */
41 public class ResolveArtifactMojo
42 extends AbstractMojo
43 {
44
45 /**
46 * The entry point to Maven Artifact Resolver, i.e. the component doing all the work.
47 *
48 * @component
49 */
50 private RepositorySystem repoSystem;
51
52 /**
53 * The current repository/network configuration of Maven.
54 *
55 * @parameter default-value="${repositorySystemSession}"
56 * @readonly
57 */
58 private RepositorySystemSession repoSession;
59
60 /**
61 * The project's remote repositories to use for the resolution.
62 *
63 * @parameter default-value="${project.remoteProjectRepositories}"
64 * @readonly
65 */
66 private List<RemoteRepository> remoteRepos;
67
68 /**
69 * The {@code <groupId>:<artifactId>[:<extension>[:<classifier>]]:<version>} of the artifact to resolve.
70 *
71 * @parameter property="resolver.artifactCoords"
72 */
73 private String artifactCoords;
74
75 public void execute()
76 throws MojoExecutionException, MojoFailureException
77 {
78 Artifact artifact;
79 try
80 {
81 artifact = new DefaultArtifact( artifactCoords );
82 }
83 catch ( IllegalArgumentException e )
84 {
85 throw new MojoFailureException( e.getMessage(), e );
86 }
87
88 ArtifactRequest request = new ArtifactRequest();
89 request.setArtifact( artifact );
90 request.setRepositories( remoteRepos );
91
92 getLog().info( "Resolving artifact " + artifact + " from " + remoteRepos );
93
94 ArtifactResult result;
95 try
96 {
97 result = repoSystem.resolveArtifact( repoSession, request );
98 }
99 catch ( ArtifactResolutionException e )
100 {
101 throw new MojoExecutionException( e.getMessage(), e );
102 }
103
104 getLog().info( "Resolved artifact " + artifact + " to " + result.getArtifact().getFile() + " from "
105 + result.getRepository() );
106 }
107
108 }