io.tesla.aether.guice.DefaultModelResolver.java Source code

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Here is the source code for io.tesla.aether.guice.DefaultModelResolver.java

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/**
 * Copyright (c) 2012 to original author or authors
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package io.tesla.aether.guice;

/*
 * 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.
 */

import java.io.File;
import java.util.Collections;
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.apache.maven.repository.internal.ArtifactDescriptorUtils;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.RequestTrace;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.impl.ArtifactResolver;
import org.eclipse.aether.impl.RemoteRepositoryManager;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.ArtifactResolutionException;

/**
 * A model resolver to assist building of dependency POMs. This resolver gives priority to those repositories that have
 * been initially specified and repositories discovered in dependency POMs are recessively merged into the search chain.
 * 
 * @author Benjamin Bentmann
 * @see DefaultArtifactDescriptorReader
 */
public class DefaultModelResolver implements ModelResolver {

    private final RepositorySystemSession session;

    private final RequestTrace trace;

    private final String context;

    private List<RemoteRepository> repositories;

    private final ArtifactResolver resolver;

    private final RemoteRepositoryManager remoteRepositoryManager;

    private final Set<String> repositoryIds;

    public DefaultModelResolver(RepositorySystemSession session, RequestTrace trace, String context,
            ArtifactResolver resolver, RemoteRepositoryManager remoteRepositoryManager,
            List<RemoteRepository> repositories) {
        this.session = session;
        this.trace = trace;
        this.context = context;
        this.resolver = resolver;
        this.remoteRepositoryManager = remoteRepositoryManager;
        this.repositories = repositories;
        this.repositoryIds = new HashSet<String>();
    }

    private DefaultModelResolver(DefaultModelResolver original) {
        this.session = original.session;
        this.trace = original.trace;
        this.context = original.context;
        this.resolver = original.resolver;
        this.remoteRepositoryManager = original.remoteRepositoryManager;
        this.repositories = original.repositories;
        this.repositoryIds = new HashSet<String>(original.repositoryIds);
    }

    public void addRepository(Repository repository) throws InvalidRepositoryException {
        if (session.isIgnoreArtifactDescriptorRepositories() || !repositoryIds.add(repository.getId())) {
            return;
        }

        List<RemoteRepository> newRepositories = Collections
                .singletonList(ArtifactDescriptorUtils.toRemoteRepository(repository));

        this.repositories = remoteRepositoryManager.aggregateRepositories(session, repositories, newRepositories,
                true);
    }

    public ModelResolver newCopy() {
        return new DefaultModelResolver(this);
    }

    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, context);
            request.setTrace(trace);
            pomArtifact = resolver.resolveArtifact(session, request).getArtifact();
        } catch (ArtifactResolutionException e) {
            throw new UnresolvableModelException(e.getMessage(), groupId, artifactId, version, e);
        }

        File pomFile = pomArtifact.getFile();

        return new FileModelSource(pomFile);
    }

}