How to get access to Maven's dependency hierarchy within a plugin

Question

In my plugin I need to process the dependency hierarchy and get information (groupId, artifactId, version etc) about each dependency and if it was excluded. What is the best

Answer 1

Why not just get back all the dependencies (both direct and transitive ones) and check for exclusion?

@Parameter(property = "project", required = true, readonly = true)
private MavenProject project;

public void execute() throws MojoExecutionException
{
  for (Artifact a : project.getArtifacts()) {
    if( a.getScope().equals(Artifact.SCOPE_TEST) ) { ... }
    if( a.getScope().equals(Artifact.SCOPE_PROVIDED) ) { ... }
    if( a.getScope().equals(Artifact.SCOPE_RUNTIME) ) { ... }
  }
}