archetype-common/src/main/java/org/apache/maven/archetype/downloader/DefaultDownloader.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.archetype.downloader;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.io.File;
import java.util.List;

import org.apache.maven.RepositoryUtils;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.project.ProjectBuildingRequest;
import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.ArtifactResolutionException;
import org.eclipse.aether.resolution.ArtifactResult;

/**
 * @author Jason van Zyl
 */
@Singleton
@Named
public class DefaultDownloader implements Downloader {
    private final RepositorySystem repositorySystem;

    @Inject
    public DefaultDownloader(RepositorySystem repositorySystem) {
        this.repositorySystem = repositorySystem;
    }

    @Override
    public File download(
            String groupId,
            String artifactId,
            String version,
            ArtifactRepository archetypeRepository,
            ArtifactRepository localRepository,
            List<ArtifactRepository> remoteRepositories,
            ProjectBuildingRequest buildingRequest)
            throws DownloadException, DownloadNotFoundException {
        DefaultArtifact artifact = new DefaultArtifact(groupId, artifactId, "", "jar", version);
        try {
            ArtifactRequest request = new ArtifactRequest(
                    artifact, RepositoryUtils.toRepos(buildingRequest.getRemoteRepositories()), "archetype");
            ArtifactResult result = repositorySystem.resolveArtifact(buildingRequest.getRepositorySession(), request);
            return result.getArtifact().getFile();
        } catch (ArtifactResolutionException e) {
            throw new DownloadException("Error downloading " + artifact + ".", e);
        }
    }

    @Override
    public File downloadOld(
            String groupId,
            String artifactId,
            String version,
            ArtifactRepository archetypeRepository,
            ArtifactRepository localRepository,
            List<ArtifactRepository> remoteRepositories,
            ProjectBuildingRequest buildingRequest)
            throws DownloadException, DownloadNotFoundException {

        DefaultArtifact artifact = new DefaultArtifact(groupId, artifactId, "", "jar", version);
        try {
            ArtifactRequest request =
                    new ArtifactRequest(artifact, RepositoryUtils.toRepos(remoteRepositories), "archetype");
            ArtifactResult result = repositorySystem.resolveArtifact(buildingRequest.getRepositorySession(), request);
            return result.getArtifact().getFile();
        } catch (ArtifactResolutionException e) {
            throw new DownloadException("Error downloading " + artifact + ".", e);
        }
    }
}