Java tutorial
/* * JBoss, Home of Professional Open Source * Copyright 2012, Red Hat Middleware LLC, and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * 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.jboss.shrinkwrap.resolver.impl.maven.internal; import java.io.File; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Set; import org.apache.maven.model.Dependency; import org.apache.maven.model.Parent; import org.apache.maven.model.Repository; import org.apache.maven.model.building.FileModelSource; import org.apache.maven.model.building.ModelSource; import org.apache.maven.model.resolution.InvalidRepositoryException; import org.apache.maven.model.resolution.ModelResolver; import org.apache.maven.model.resolution.UnresolvableModelException; 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.repository.RemoteRepository; import org.eclipse.aether.resolution.ArtifactRequest; import org.eclipse.aether.resolution.ArtifactResolutionException; import org.eclipse.aether.resolution.VersionRangeRequest; import org.eclipse.aether.resolution.VersionRangeResolutionException; import org.eclipse.aether.resolution.VersionRangeResult; import org.jboss.shrinkwrap.resolver.impl.maven.bootstrap.MavenRepositorySystem; import org.jboss.shrinkwrap.resolver.impl.maven.convert.MavenConverter; import com.google.common.base.Predicate; import com.google.common.collect.Iterables; /** * Resolves an artifact even from remote repository during resolution of the model. * * The repositories are added to the resolution chain as found during processing of the POM file. Repository is added * only if there is no other repository with same id already defined. * * @author <a href="mailto:kpiwko@redhat.com">Karel Piwko</a> */ public class MavenModelResolver implements ModelResolver { private final List<RemoteRepository> repositories; private final Set<String> repositoryIds; private final MavenRepositorySystem system; private final RepositorySystemSession session; /** * Creates a new Maven repository resolver. This resolver uses service available to Maven to create an artifact * resolution chain * * @param system * the Maven based implementation of the {@link RepositorySystem} * @param session * the current Maven execution session * @param remoteRepositories * the list of available Maven repositories */ public MavenModelResolver(MavenRepositorySystem system, RepositorySystemSession session, List<RemoteRepository> remoteRepositories) { this.system = system; this.session = session; // RemoteRepository is mutable this.repositories = new ArrayList<RemoteRepository>(remoteRepositories.size()); for (final RemoteRepository remoteRepository : remoteRepositories) { this.repositories.add(new RemoteRepository.Builder(remoteRepository).build()); } this.repositoryIds = new HashSet<String>(repositories.size()); for (final RemoteRepository repository : repositories) { repositoryIds.add(repository.getId()); } } /** * Cloning constructor * * @param origin */ private MavenModelResolver(MavenModelResolver origin) { this(origin.system, origin.session, origin.repositories); } /* * (non-Javadoc) * * @see org.apache.maven.model.resolution.ModelResolver#addRepository(org.apache.maven.model.Repository) */ @Override public void addRepository(Repository repository) throws InvalidRepositoryException { addRepository(repository, false); } /* * (non-Javadoc) * * @see org.apache.maven.model.resolution.ModelResolver#newCopy() */ @Override public ModelResolver newCopy() { return new MavenModelResolver(this); } /* * (non-Javadoc) * * @see org.apache.maven.model.resolution.ModelResolver#resolveModel(java.lang.String, java.lang.String, * java.lang.String) */ @Override public ModelSource resolveModel(String groupId, String artifactId, String version) throws UnresolvableModelException { Artifact pomArtifact = new DefaultArtifact(groupId, artifactId, "", "pom", version); try { final ArtifactRequest request = new ArtifactRequest(pomArtifact, repositories, null); pomArtifact = system.resolveArtifact(session, request).getArtifact(); } catch (ArtifactResolutionException e) { throw new UnresolvableModelException("Failed to resolve POM for " + groupId + ":" + artifactId + ":" + version + " due to " + e.getMessage(), groupId, artifactId, version, e); } final File pomFile = pomArtifact.getFile(); return new FileModelSource(pomFile); } @Override public ModelSource resolveModel(Parent parent) throws UnresolvableModelException { Artifact artifact = new DefaultArtifact(parent.getGroupId(), parent.getArtifactId(), "", "pom", parent.getVersion()); VersionRangeRequest versionRangeRequest = new VersionRangeRequest(artifact, repositories, null); try { VersionRangeResult versionRangeResult = system.resolveVersionRange(session, versionRangeRequest); if (versionRangeResult.getHighestVersion() == null) { throw new UnresolvableModelException( String.format("No versions matched the requested parent version range '%s'", parent.getVersion()), parent.getGroupId(), parent.getArtifactId(), parent.getVersion()); } if (versionRangeResult.getVersionConstraint() != null && versionRangeResult.getVersionConstraint().getRange() != null && versionRangeResult.getVersionConstraint().getRange().getUpperBound() == null) { throw new UnresolvableModelException( String.format("The requested parent version range '%s' does not specify an upper bound", parent.getVersion()), parent.getGroupId(), parent.getArtifactId(), parent.getVersion()); } parent.setVersion(versionRangeResult.getHighestVersion().toString()); } catch (VersionRangeResolutionException e) { throw new UnresolvableModelException(e.getMessage(), parent.getGroupId(), parent.getArtifactId(), parent.getVersion(), e); } return resolveModel(parent.getGroupId(), parent.getArtifactId(), parent.getVersion()); } @Override public ModelSource resolveModel(Dependency dependency) throws UnresolvableModelException { try { final Artifact artifact = new DefaultArtifact(dependency.getGroupId(), dependency.getArtifactId(), "", "pom", dependency.getVersion()); final VersionRangeRequest versionRangeRequest = new VersionRangeRequest(artifact, repositories, null); final VersionRangeResult versionRangeResult = system.resolveVersionRange(session, versionRangeRequest); if (versionRangeResult.getHighestVersion() == null) { throw new UnresolvableModelException( String.format("No versions matched the requested dependency version range '%s'", dependency.getVersion()), dependency.getGroupId(), dependency.getArtifactId(), dependency.getVersion()); } if (versionRangeResult.getVersionConstraint() != null && versionRangeResult.getVersionConstraint().getRange() != null && versionRangeResult.getVersionConstraint().getRange().getUpperBound() == null) { throw new UnresolvableModelException( String.format("The requested dependency version range '%s' does not specify an upper bound", dependency.getVersion()), dependency.getGroupId(), dependency.getArtifactId(), dependency.getVersion()); } dependency.setVersion(versionRangeResult.getHighestVersion().toString()); return resolveModel(dependency.getGroupId(), dependency.getArtifactId(), dependency.getVersion()); } catch (VersionRangeResolutionException e) { throw new UnresolvableModelException(e.getMessage(), dependency.getGroupId(), dependency.getArtifactId(), dependency.getVersion(), e); } } @Override public void addRepository(Repository repository, boolean replace) throws InvalidRepositoryException { if (session.isIgnoreArtifactDescriptorRepositories()) { return; } if (!repositoryIds.add(repository.getId())) { if (!replace) { return; } removeMatchingRepository(repositories, repository.getId()); } repositories.add(MavenConverter.asRemoteRepository(repository)); } private static void removeMatchingRepository(Iterable<RemoteRepository> repositories, final String id) { Iterables.removeIf(repositories, new Predicate<RemoteRepository>() { @Override public boolean apply(RemoteRepository remoteRepository) { return remoteRepository.getId().equals(id); } }); } }