001package org.apache.maven.resolver.examples;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 * 
012 *  http://www.apache.org/licenses/LICENSE-2.0
013 * 
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import java.util.List;
023
024import org.apache.maven.resolver.examples.util.Booter;
025import org.eclipse.aether.RepositorySystem;
026import org.eclipse.aether.RepositorySystemSession;
027import org.eclipse.aether.artifact.Artifact;
028import org.eclipse.aether.artifact.DefaultArtifact;
029import org.eclipse.aether.collection.CollectRequest;
030import org.eclipse.aether.graph.Dependency;
031import org.eclipse.aether.graph.DependencyFilter;
032import org.eclipse.aether.resolution.ArtifactResult;
033import org.eclipse.aether.resolution.DependencyRequest;
034import org.eclipse.aether.util.artifact.JavaScopes;
035import org.eclipse.aether.util.filter.DependencyFilterUtils;
036
037/**
038 * Resolves the transitive (compile) dependencies of an artifact.
039 */
040public class ResolveTransitiveDependencies
041{
042
043    /**
044     * Main.
045     * @param args
046     * @throws Exception
047     */
048    public static void main( String[] args )
049        throws Exception
050    {
051        System.out.println( "------------------------------------------------------------" );
052        System.out.println( ResolveTransitiveDependencies.class.getSimpleName() );
053
054        RepositorySystem system = Booter.newRepositorySystem();
055
056        RepositorySystemSession session = Booter.newRepositorySystemSession( system );
057
058        Artifact artifact = new DefaultArtifact( "org.apache.maven.resolver:maven-resolver-impl:1.3.3" );
059
060        DependencyFilter classpathFlter = DependencyFilterUtils.classpathFilter( JavaScopes.COMPILE );
061
062        CollectRequest collectRequest = new CollectRequest();
063        collectRequest.setRoot( new Dependency( artifact, JavaScopes.COMPILE ) );
064        collectRequest.setRepositories( Booter.newRepositories( system, session ) );
065
066        DependencyRequest dependencyRequest = new DependencyRequest( collectRequest, classpathFlter );
067
068        List<ArtifactResult> artifactResults =
069            system.resolveDependencies( session, dependencyRequest ).getArtifactResults();
070
071        for ( ArtifactResult artifactResult : artifactResults )
072        {
073            System.out.println( artifactResult.getArtifact() + " resolved to "
074                + artifactResult.getArtifact().getFile() );
075        }
076    }
077
078}