For a Maven 3 plugin what is the latest way to resolve a artifact

Question

What is the latest way of resolving an Artifact within a Maven 3.2.5 plugin. ArtifactResolver and ArtifactFactory(depreciated) are in the compat library which implies that there is a newer/better way of resolution, but I can not find any examples, docs or searches that do not use the above.

Thanks

Michael

Answer 1

There's a blog from sonatype on exactly this:

http://blog.sonatype.com/2011/01/how-to-use-aether-in-maven-plugins

This is the code from the blog entry (full details are obviously described there):

public MyMojo extends AbstractMojo {

    /**
     * The entry point to Aether, i.e. the component doing all the work.
     */
    @Component
    private RepositorySystem repoSystem;

    /**
     * The current repository/network configuration of Maven.
     */
    @Parameter(defaultValue = "${repositorySystemSession}", readonly = true)
    private RepositorySystemSession repoSession;

    /**
     * The project's remote repositories to use for the resolution of plugins and their dependencies.
     */
    @Parameter(defaultValue = "${project.remotePluginRepositories}", readonly = true)
    private List<RemoteRepository> remoteRepos;

    public void execute() throws MojoExecutionException, MojoFailureException {
        ArtifactRequest request = new ArtifactRequest();
        request.setArtifact(new DefaultArtifact( "org.apache.maven:maven-model:3.0" ) );
        request.setRepositories( remoteRepos );

        ArtifactResult result = repoSystem.resolveArtifact( repoSession, request );
    } 

}

You can then use result.getArtifact() to get the artifact and result.getArtifact().getFile() to get the file of the artifact if you need it.