001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.maven.resolver.examples;
020
021import org.apache.maven.resolver.examples.util.Booter;
022import org.eclipse.aether.RepositorySystem;
023import org.eclipse.aether.RepositorySystemSession;
024import org.eclipse.aether.RepositorySystemSession.CloseableSession;
025import org.eclipse.aether.artifact.Artifact;
026import org.eclipse.aether.artifact.DefaultArtifact;
027import org.eclipse.aether.repository.RepositoryPolicy;
028import org.eclipse.aether.resolution.ArtifactRequest;
029import org.eclipse.aether.resolution.ArtifactResult;
030
031/**
032 * Resolves a single artifact.
033 */
034public class ResolveArtifact {
035
036    /**
037     * Main.
038     * @param args
039     * @throws Exception
040     */
041    public static void main(String[] args) throws Exception {
042        System.out.println("------------------------------------------------------------");
043        System.out.println(ResolveArtifact.class.getSimpleName());
044
045        try (RepositorySystem system = Booter.newRepositorySystem(Booter.selectFactory(args))) {
046            RepositorySystemSession.SessionBuilder sessionBuilder = Booter.newRepositorySystemSession(system);
047            Artifact artifact;
048            ArtifactRequest artifactRequest;
049            ArtifactResult artifactResult;
050
051            try (CloseableSession session = sessionBuilder.build()) {
052                artifact = new DefaultArtifact("org.apache.maven.resolver:maven-resolver-util:1.3.3");
053
054                artifactRequest = new ArtifactRequest();
055                artifactRequest.setArtifact(artifact);
056                artifactRequest.setRepositories(Booter.newRepositories(system, session));
057
058                artifactResult = system.resolveArtifact(session, artifactRequest);
059
060                artifact = artifactResult.getArtifact();
061
062                System.out.println(artifact + " resolved to  " + artifact.getFile());
063            }
064
065            // signature
066            sessionBuilder.setChecksumPolicy(RepositoryPolicy.CHECKSUM_POLICY_FAIL);
067
068            try (CloseableSession session = sessionBuilder.build()) {
069                artifact = new DefaultArtifact("org.apache.maven.resolver:maven-resolver-util:jar.asc:1.3.3");
070
071                artifactRequest = new ArtifactRequest();
072                artifactRequest.setArtifact(artifact);
073                artifactRequest.setRepositories(Booter.newRepositories(system, session));
074
075                artifactResult = system.resolveArtifact(session, artifactRequest);
076
077                artifact = artifactResult.getArtifact();
078
079                System.out.println(artifact + " resolved signature to  " + artifact.getFile());
080            }
081        }
082    }
083}