/*
* Capsule
* Copyright (c) 2014, Parallel Universe Software Co. All rights reserved.
*
* This program and the accompanying materials are licensed under the terms
* of the Eclipse Public License v1.0, available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package capsule;
import java.io.PrintStream;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.maven.repository.internal.MavenRepositorySystemUtils;
import org.eclipse.aether.ConfigurationProperties;
import org.eclipse.aether.DefaultRepositorySystemSession;
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.collection.CollectResult;
import org.eclipse.aether.collection.DependencyCollectionException;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.Exclusion;
import org.eclipse.aether.impl.DefaultServiceLocator;
import org.eclipse.aether.repository.LocalRepository;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.repository.RepositoryPolicy;
import org.eclipse.aether.resolution.ArtifactResult;
import org.eclipse.aether.resolution.DependencyRequest;
import org.eclipse.aether.resolution.DependencyResolutionException;
import org.eclipse.aether.resolution.VersionRangeRequest;
import org.eclipse.aether.resolution.VersionRangeResolutionException;
import org.eclipse.aether.resolution.VersionRangeResult;
import org.eclipse.aether.util.artifact.JavaScopes;
import org.eclipse.aether.util.graph.transformer.ConflictResolver;
import org.eclipse.aether.version.Version;
/**
* Uses Aether as the Maven dependency manager.
*/
public class DependencyManagerImpl implements DependencyManager {
private static final String MAVEN_CENTRAL_URL = "http://central.maven.org/maven2/";
private static final String PROP_CONNECT_TIMEOUT = "capsule.connect.timeout";
private static final String PROP_REQUEST_TIMEOUT = "capsule.request.timeout";
private static final String PROP_LOG = "capsule.log";
private static final boolean debug = "debug".equals(System.getProperty(PROP_LOG, "quiet"));
private static final boolean verbose = debug || "verbose".equals(System.getProperty(PROP_LOG, "quiet"));
private final boolean forceRefresh;
private final boolean offline;
private final RepositorySystem system;
private final RepositorySystemSession session;
private final List<RemoteRepository> repos;
public DependencyManagerImpl(Path localRepoPath, List<String> repos, boolean forceRefresh, boolean offline) {
this.system = newRepositorySystem();
this.forceRefresh = forceRefresh;
this.offline = offline;
this.session = newRepositorySession(system, localRepoPath);
final RepositoryPolicy policy = new RepositoryPolicy(true, RepositoryPolicy.UPDATE_POLICY_NEVER, RepositoryPolicy.CHECKSUM_POLICY_WARN);
this.repos = new ArrayList<RemoteRepository>();
if (repos == null)
this.repos.add(newRemoteRepository("central", MAVEN_CENTRAL_URL, policy));
else {
for (String repo : repos) {
if ("central".equals(repo))
this.repos.add(newRemoteRepository("central", MAVEN_CENTRAL_URL, policy));
else
this.repos.add(newRemoteRepository(null, repo, policy));
}
}
}
private static RepositorySystem newRepositorySystem() {
/*
* We're using DefaultServiceLocator rather than Guice/Sisu because it's more lightweight.
* This method pulls together the necessary Aether components and plugins.
*/
final DefaultServiceLocator locator = MavenRepositorySystemUtils.newServiceLocator();
locator.setErrorHandler(new DefaultServiceLocator.ErrorHandler() {
@Override
public void serviceCreationFailed(Class<?> type, Class<?> impl, Throwable ex) {
throw new RuntimeException("Service creation failed for type " + type.getName() + " with impl " + impl, ex);
}
});
locator.addService(org.eclipse.aether.spi.connector.RepositoryConnectorFactory.class, org.eclipse.aether.connector.basic.BasicRepositoryConnectorFactory.class);
locator.addService(org.eclipse.aether.spi.connector.transport.TransporterFactory.class, org.eclipse.aether.transport.http.HttpTransporterFactory.class);
// locator.addService(org.eclipse.aether.spi.connector.transport.TransporterFactory.class, org.eclipse.aether.transport.file.FileTransporterFactory.class);
// Takari (support concurrent downloads)
locator.setService(org.eclipse.aether.impl.SyncContextFactory.class, LockingSyncContextFactory.class);
locator.setService(org.eclipse.aether.spi.io.FileProcessor.class, LockingFileProcessor.class);
return locator.getService(RepositorySystem.class);
}
private RepositorySystemSession newRepositorySession(RepositorySystem system, Path localRepoPath) {
final DefaultRepositorySystemSession s = MavenRepositorySystemUtils.newSession();
final LocalRepository localRepo = new LocalRepository(localRepoPath.toFile());
s.setConfigProperty(ConfigurationProperties.CONNECT_TIMEOUT, System.getProperty(PROP_CONNECT_TIMEOUT));
s.setConfigProperty(ConfigurationProperties.REQUEST_TIMEOUT, System.getProperty(PROP_REQUEST_TIMEOUT));
s.setConfigProperty(ConflictResolver.CONFIG_PROP_VERBOSE, true);
s.setOffline(offline);
s.setUpdatePolicy(forceRefresh ? RepositoryPolicy.UPDATE_POLICY_ALWAYS : RepositoryPolicy.UPDATE_POLICY_NEVER);
s.setLocalRepositoryManager(system.newLocalRepositoryManager(s, localRepo));
final PrintStream out = prefixStream(System.err, "CAPSULE: ");
s.setTransferListener(new ConsoleTransferListener(out));
s.setRepositoryListener(new ConsoleRepositoryListener(verbose, out));
return s;
}
@Override
public void printDependencyTree(List<String> coords, String type) {
printDependencyTree(collect().setDependencies(toDependencies(coords, type)));
}
@Override
public void printDependencyTree(String coords) {
printDependencyTree(collect().setRoot(toDependency(getLatestVersion0(coords))));
}
private void printDependencyTree(CollectRequest collectRequest) {
try {
CollectResult collectResult = system.collectDependencies(session, collectRequest);
collectResult.getRoot().accept(new ConsoleDependencyGraphDumper(System.out));
} catch (DependencyCollectionException e) {
throw new RuntimeException(e);
}
}
@Override
public List<Path> resolveDependencies(List<String> coords, String type) {
return resolve(new CollectRequest().setRepositories(repos).setDependencies(toDependencies(coords, type)));
}
@Override
public List<Path> resolveDependency(String coords, String type) {
return resolveDependencies(Collections.singletonList(coords), type);
}
@Override
public List<Path> resolveRoot(String coords) {
return resolve(collect().setRoot(toDependency(getLatestVersion0(coords))));
}
private List<Path> resolve(CollectRequest collectRequest) {
try {
final DependencyRequest dependencyRequest = new DependencyRequest(collectRequest, null);
final List<ArtifactResult> artifactResults = system.resolveDependencies(session, dependencyRequest).getArtifactResults();
final List<Path> jars = new ArrayList<Path>();
for (ArtifactResult artifactResult : artifactResults)
jars.add(artifactResult.getArtifact().getFile().toPath().toAbsolutePath());
return jars;
} catch (DependencyResolutionException e) {
throw new RuntimeException("Error resolving dependencies.", e);
}
}
private CollectRequest collect() {
return new CollectRequest().setRepositories(repos);
}
@Override
public String getLatestVersion(String coords) {
return artifactToCoords(getLatestVersion0(coords));
}
private Artifact getLatestVersion0(String coords) {
try {
final Artifact artifact = coordsToArtifact(coords, "jar");
final VersionRangeRequest versionRangeRequest = new VersionRangeRequest().setRepositories(repos).setArtifact(artifact);
final VersionRangeResult versionRangeResult = system.resolveVersionRange(session, versionRangeRequest);
final Version highestVersion = versionRangeResult.getHighestVersion();
if (highestVersion == null)
throw new RuntimeException("Could not find any version of artifact " + coords + " (looking for: " + artifact + ")");
return artifact.setVersion(highestVersion.toString());
} catch (VersionRangeResolutionException e) {
throw new RuntimeException(e);
}
}
private static RemoteRepository newRemoteRepository(String name, String url, RepositoryPolicy policy) {
return new RemoteRepository.Builder(name, "default", url).setPolicy(policy).build();
}
// visible for testing
static Dependency toDependency(String coords, String type) {
return new Dependency(coordsToArtifact(coords, type), JavaScopes.RUNTIME, false, getExclusions(coords));
}
private static Dependency toDependency(Artifact artifact) {
return new Dependency(artifact, JavaScopes.RUNTIME, false, null);
}
private static List<Dependency> toDependencies(List<String> coords, String type) {
final List<Dependency> deps = new ArrayList<Dependency>(coords.size());
for (String c : coords)
deps.add(toDependency(c, type));
return deps;
}
private static String artifactToCoords(Artifact artifact) {
if (artifact == null)
return null;
return artifact.getGroupId() + ":" + artifact.getArtifactId() + ":" + artifact.getVersion();
}
private static final Pattern PAT_DEPENDENCY = Pattern.compile("(?<groupId>[^:\\(\\)]+):(?<artifactId>[^:\\(\\)]+)(:(?<version>[^:\\(\\)]*))?(:(?<classifier>[^:\\(\\)]+))?(\\((?<exclusions>[^\\(\\)]*)\\))?");
static Artifact coordsToArtifact(final String depString, String type) {
final Matcher m = PAT_DEPENDENCY.matcher(depString);
if (!m.matches())
throw new IllegalArgumentException("Could not parse dependency: " + depString);
final String groupId = m.group("groupId");
final String artifactId = m.group("artifactId");
String version = m.group("version");
if (version == null || version.isEmpty())
version = "[0,)";
final String classifier = m.group("classifier");
return new DefaultArtifact(groupId, artifactId, classifier, type, version);
}
static Collection<Exclusion> getExclusions(String depString) {
final Matcher m = PAT_DEPENDENCY.matcher(depString);
if (!m.matches())
throw new IllegalArgumentException("Could not parse dependency: " + depString);
if (m.group("exclusions") == null || m.group("exclusions").isEmpty())
return null;
final List<String> exclusionPatterns = Arrays.asList(m.group("exclusions").split(","));
final List<Exclusion> exclusions = new ArrayList<Exclusion>();
for (String ex : exclusionPatterns) {
String[] coords = ex.trim().split(":");
if (coords.length != 2)
throw new IllegalArgumentException("Illegal exclusion dependency coordinates: " + depString + " (in exclusion " + ex + ")");
exclusions.add(new Exclusion(coords[0], coords[1], "*", "*"));
}
return exclusions;
}
private static PrintStream prefixStream(PrintStream out, final String prefix) {
return new PrintStream(out) {
@Override
public void println(String x) {
super.println(prefix + x);
}
};
}
// necessary if we want to forgo Guice/Sisu injection and use DefaultServiceLocator instead
private static final io.takari.filemanager.FileManager takariFileManager = new io.takari.filemanager.internal.DefaultFileManager();
public static class LockingFileProcessor extends io.takari.aether.concurrency.LockingFileProcessor {
public LockingFileProcessor() {
super(takariFileManager);
}
}
public static class LockingSyncContextFactory extends io.takari.aether.concurrency.LockingSyncContextFactory {
public LockingSyncContextFactory() {
super(takariFileManager);
}
}
}