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Maven artifact retrieval utilities
/*
* Copyright 2017 SPF4J.
*
* Licensed 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.spf4j.maven;
import com.google.common.collect.Sets;
import java.io.File;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import javax.annotation.Nonnull;
import org.apache.maven.repository.internal.MavenRepositorySystemUtils;
import org.codehaus.plexus.util.StringUtils;
import org.eclipse.aether.AbstractRepositoryListener;
import org.eclipse.aether.DefaultRepositorySystemSession;
import org.eclipse.aether.RepositoryEvent;
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.collection.CollectRequest;
import org.eclipse.aether.connector.basic.BasicRepositoryConnectorFactory;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.DependencyFilter;
import org.eclipse.aether.impl.DefaultServiceLocator;
import org.eclipse.aether.repository.LocalRepository;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.ArtifactResolutionException;
import org.eclipse.aether.resolution.ArtifactResult;
import org.eclipse.aether.resolution.DependencyRequest;
import org.eclipse.aether.resolution.DependencyResolutionException;
import org.eclipse.aether.resolution.DependencyResult;
import org.eclipse.aether.resolution.VersionRangeRequest;
import org.eclipse.aether.resolution.VersionRangeResolutionException;
import org.eclipse.aether.resolution.VersionRangeResult;
import org.eclipse.aether.spi.connector.RepositoryConnectorFactory;
import org.eclipse.aether.spi.connector.transport.TransporterFactory;
import org.eclipse.aether.transport.file.FileTransporterFactory;
import org.eclipse.aether.transport.http.HttpTransporterFactory;
import org.eclipse.aether.util.filter.DependencyFilterUtils;
import org.eclipse.aether.version.Version;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* inspired by:
* http://www.hascode.com/2017/09/downloading-maven-artifacts-from-a-pom-file-programmatically-with-eclipse-aether/
*
* @author Zoltan Farkas
*/
public final class MavenRepositoryUtils {
private static final Logger LOG = LoggerFactory.getLogger(MavenRepositoryUtils.class);
private MavenRepositoryUtils() {
}
public static String toPath(final Collection files) {
StringBuilder result = new StringBuilder(files.size() * 20);
Iterator iterator = files.iterator();
if (iterator.hasNext()) {
result.append(iterator.next().getAbsolutePath());
} else {
return "";
}
while (iterator.hasNext()) {
result.append(File.pathSeparatorChar);
result.append(iterator.next().getAbsolutePath());
}
return StringUtils.quoteAndEscape(result.toString(), '\'');
}
@Nonnull
public static RepositorySystem getRepositorySystem() {
DefaultServiceLocator serviceLocator = MavenRepositorySystemUtils.newServiceLocator();
serviceLocator
.addService(RepositoryConnectorFactory.class, BasicRepositoryConnectorFactory.class);
serviceLocator.addService(TransporterFactory.class, FileTransporterFactory.class);
serviceLocator.addService(TransporterFactory.class, HttpTransporterFactory.class);
serviceLocator.setErrorHandler(new DefaultServiceLocator.ErrorHandler() {
@Override
public void serviceCreationFailed(final Class type, final Class impl, final Throwable exception) {
LOG.error("Error creating service {}, {}", new Object[]{type, impl, exception});
}
});
RepositorySystem service = serviceLocator.getService(RepositorySystem.class);
if (service == null) {
throw new IllegalStateException("No repository system in " + serviceLocator);
}
return service;
}
public static RepositorySystemSession getRepositorySystemSession(final RepositorySystem system,
final File localRepoPath) {
DefaultRepositorySystemSession repositorySystemSession = MavenRepositorySystemUtils
.newSession();
LocalRepository localRepository = new LocalRepository(localRepoPath);
repositorySystemSession.setLocalRepositoryManager(
system.newLocalRepositoryManager(repositorySystemSession, localRepository));
repositorySystemSession.setRepositoryListener(new AbstractRepositoryListener() {
@Override
public void artifactDownloaded(final RepositoryEvent event) {
LOG.info("Downloaded artifact {}", event);
}
});
return repositorySystemSession;
}
public static RemoteRepository getDefaultRepository() {
return new RemoteRepository.Builder("central", "default",
System.getProperty("spf4j.aether.defaultMavenRepo", "https://repo.maven.apache.org/maven2/"))
.build();
}
public static List getVersions(final List repos,
final File localRepo, final String groupId, final String artifactId, final String versionExpr)
throws VersionRangeResolutionException {
RepositorySystem repositorySystem = getRepositorySystem();
RepositorySystemSession session = getRepositorySystemSession(repositorySystem, localRepo);
return getVersions(groupId, artifactId, versionExpr, repos, repositorySystem, session);
}
public static List getVersions(final String groupId, final String artifactId, final String versionExpr,
final List repos,
final RepositorySystem repositorySystem, final RepositorySystemSession session)
throws VersionRangeResolutionException {
Artifact artifact = new DefaultArtifact(groupId, artifactId, null, null, versionExpr);
VersionRangeRequest request = new VersionRangeRequest(artifact, repos, null);
VersionRangeResult versionResult = repositorySystem.resolveVersionRange(session, request);
return versionResult.getVersions();
}
public static File resolveArtifact(final List repos,
final File localRepo, final String groupId, final String artifactId,
final String classifier, final String extension, final String versionExpr)
throws ArtifactResolutionException {
RepositorySystem repositorySystem = getRepositorySystem();
RepositorySystemSession session = getRepositorySystemSession(repositorySystem, localRepo);
return resolveArtifact(groupId, artifactId, classifier, extension, versionExpr, repos, repositorySystem, session);
}
public static File resolveArtifact(final String groupId, final String artifactId,
final String classifier, final String extension, final String versionExpr,
final List repos,
final RepositorySystem repositorySystem, final RepositorySystemSession session)
throws ArtifactResolutionException {
Artifact artifact = new DefaultArtifact(groupId, artifactId, classifier, extension, versionExpr);
ArtifactRequest artifactRequest = new ArtifactRequest();
artifactRequest.setArtifact(artifact);
artifactRequest.setRepositories(repos);
ArtifactResult artifactResult = repositorySystem
.resolveArtifact(session, artifactRequest);
artifact = artifactResult.getArtifact();
return artifact.getFile();
}
public static Set resolveArtifactAndDependencies(final List repos,
final File localRepo,
final String scope,
final String groupId, final String artifactId,
final String classifier, final String extension, final String versionExpr)
throws DependencyResolutionException {
RepositorySystem repositorySystem = getRepositorySystem();
RepositorySystemSession session = getRepositorySystemSession(repositorySystem, localRepo);
return resolveArtifactAndDependencies(scope, groupId, artifactId, classifier, extension, versionExpr,
repos, repositorySystem, session);
}
public static Set resolveArtifactAndDependencies(final String scope,
final String groupId, final String artifactId,
final String classifier, final String extension, final String versionExpr,
final List repos,
final RepositorySystem repositorySystem,
final RepositorySystemSession session) throws DependencyResolutionException {
Artifact artifact = new DefaultArtifact(groupId, artifactId, classifier, extension, versionExpr);
CollectRequest collectRequest = new CollectRequest();
collectRequest.setRoot(new Dependency(artifact, scope));
collectRequest.setRepositories(repos);
DependencyFilter dependencyFilter = DependencyFilterUtils.classpathFilter(scope);
if (classifier != null) {
dependencyFilter = DependencyFilterUtils.andFilter(new ClassifierDependencyFilter(classifier));
}
DependencyRequest dependencyRequest = new DependencyRequest(collectRequest, dependencyFilter);
DependencyResult depresult = repositorySystem
.resolveDependencies(session, dependencyRequest);
List artifactResults = depresult.getArtifactResults();
Set result = Sets.newHashSetWithExpectedSize(artifactResults.size());
for (ArtifactResult ar : artifactResults) {
result.add(ar.getArtifact().getFile());
}
return result;
}
}