dependencies - Aether:アーティファクトの非推移的な依存関係を取得するには?

Question

Aether を使用してアーティファクトの推移的な依存関係を計算するための多くの例がウェブ上に浮かんでいます。そうは言っても、アーティファクトの直接の依存関係 (1 レベルの深さ)を取得するにはどうすればよいですか?

Answer 1

私自身の質問に答える：

http://git.eclipse.org/c/aether/aether-demo.gitから取得した「Aether Demo Snipplets」で GetDirectDependencies.java を見つけました。

/*******************************************************************************
 * Copyright (c) 2010, 2012 Sonatype, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Sonatype, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.aether.examples;

import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.examples.util.Booter;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
import org.eclipse.aether.resolution.ArtifactDescriptorResult;

/**
 * Determines the direct dependencies of an artifact as declared in its artifact descriptor (POM).
 */
public class GetDirectDependencies
{

    public static void main( String[] args )
        throws Exception
    {
        System.out.println( "------------------------------------------------------------" );
        System.out.println( GetDirectDependencies.class.getSimpleName() );

        RepositorySystem system = Booter.newRepositorySystem();

        RepositorySystemSession session = Booter.newRepositorySystemSession( system );

        Artifact artifact = new DefaultArtifact( "org.sonatype.aether:aether-impl:1.13" );

        RemoteRepository repo = Booter.newCentralRepository();

        ArtifactDescriptorRequest descriptorRequest = new ArtifactDescriptorRequest();
        descriptorRequest.setArtifact( artifact );
        descriptorRequest.addRepository( repo );

        ArtifactDescriptorResult descriptorResult = system.readArtifactDescriptor( session, descriptorRequest );

        for ( Dependency dependency : descriptorResult.getDependencies() )
        {
            System.out.println( dependency );
        }
    }

}