org.jboss.shrinkwrap.resolver.impl.maven.MavenModelResolver.java Source code

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Here is the source code for org.jboss.shrinkwrap.resolver.impl.maven.MavenModelResolver.java

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, 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;

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.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.sonatype.aether.RepositorySystem;
import org.sonatype.aether.RepositorySystemSession;
import org.sonatype.aether.artifact.Artifact;
import org.sonatype.aether.repository.RemoteRepository;
import org.sonatype.aether.resolution.ArtifactRequest;
import org.sonatype.aether.resolution.ArtifactResolutionException;
import org.sonatype.aether.util.artifact.DefaultArtifact;

/**
 * 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 List<RemoteRepository> repositories;
    private Set<String> repositoryIds;

    private MavenRepositorySystem system;
    private 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 settings Maven and resolver settings
     */
    public MavenModelResolver(MavenRepositorySystem system, MavenDependencyResolverSettings settings) {
        this(system, settings, system.getSession(settings));
    }

    /**
     * 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 settings Maven and resolver settings
     * @param session the current Maven execution session
     */
    public MavenModelResolver(MavenRepositorySystem system, MavenDependencyResolverSettings settings,
            RepositorySystemSession session) {
        this.system = system;
        this.session = session;
        this.repositories = new ArrayList<RemoteRepository>(settings.getRemoteRepositories());
        this.repositoryIds = new HashSet<String>();

        for (RemoteRepository repository : repositories) {
            repositoryIds.add(repository.getId());
        }

    }

    // a cloning constructor
    private MavenModelResolver(MavenModelResolver clone) {
        this.system = clone.system;
        this.session = clone.session;
        this.repositories = new ArrayList<RemoteRepository>(clone.repositories);
        this.repositoryIds = new HashSet<String>(clone.repositoryIds);
    }

    /*
     * (non-Javadoc)
     *
     * @see org.apache.maven.model.resolution.ModelResolver#addRepository(org.apache.maven.model.Repository)
     */
    @Override
    public void addRepository(Repository repository) throws InvalidRepositoryException {
        if (repositoryIds.contains(repository.getId())) {
            return;
        }

        repositoryIds.add(repository.getId());
        repositories.add(MavenConverter.asRemoteRepository(repository));
    }

    /*
     * (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 {
            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);
        }

        File pomFile = pomArtifact.getFile();

        return new FileModelSource(pomFile);

    }
}