AetherHelper.java

/*
 * ###
 * Android Maven Plugin - android-maven-plugin
 * 
 * Copyright (C) 1999 - 2012 Photon Infotech Inc.
 * 
 * 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.
 * ###
 */
/*
 * Copyright (C) 2009 Jayway AB
 *
 * 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 com.photon.maven.plugins.android.common;

import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.plugin.MojoExecutionException;
import org.sonatype.aether.RepositorySystem;
import org.sonatype.aether.RepositorySystemSession;
import org.sonatype.aether.repository.RemoteRepository;
import org.sonatype.aether.resolution.ArtifactRequest;
import org.sonatype.aether.resolution.ArtifactResolutionException;
import org.sonatype.aether.resolution.ArtifactResult;
import org.sonatype.aether.util.artifact.DefaultArtifact;

/** Helper class to convert between Maven and Aether beans and provide helper methods for resolving artifacts.
 *
 */
public class AetherHelper {

    /** Converts the specified Maven artifact to a Aether artifact.  This method takes into consideration situations
     * where some of the artifact properties (classifier, etc) are null.
     *
     * @param artifact The Maven artifact to convert
     * @return The resulting Aether artifact
     */
    public static org.sonatype.aether.artifact.Artifact createAetherArtifact(Artifact artifact)
    {
        DefaultArtifact defaultArtifact;
        if (artifact.getClassifier() != null)
        {
            defaultArtifact = new DefaultArtifact(artifact.getGroupId(), artifact.getArtifactId(), artifact.getClassifier(), artifact.getType(), artifact.getVersion());
        }
        else
        {
            defaultArtifact = new DefaultArtifact(artifact.getGroupId(), artifact.getArtifactId(), artifact.getType(), artifact.getVersion());
        }
        defaultArtifact.setFile(artifact.getFile());
        return defaultArtifact;
    }

   public static Set<Artifact> resolveArtifacts(Set<Artifact> artifacts,
                                           RepositorySystem repositorySystem,
                                           RepositorySystemSession repositorySystemSession,
                                           List<RemoteRepository> repositories) throws MojoExecutionException
   {
        try {

            final Set<Artifact> resolvedArtifacts = new LinkedHashSet<Artifact>();

            for (Artifact artifact : artifacts) {
                final Artifact resolvedArtifact = AetherHelper.resolveArtifact(artifact,repositorySystem, repositorySystemSession, repositories);
                resolvedArtifacts.add(resolvedArtifact);
            }
            return resolvedArtifacts;
        }
        catch (Exception e) {
            throw new MojoExecutionException( "Error resolving dependencies: " + e.getMessage(), e );
        }
    }

    public static Artifact resolveArtifact(Artifact artifact,
                                           RepositorySystem repositorySystem,
                                           RepositorySystemSession repositorySystemSession,
                                           List<RemoteRepository> repositories) throws MojoExecutionException {
        try {
            final ArtifactRequest artifactRequest = new ArtifactRequest();
            org.sonatype.aether.artifact.Artifact aetherArtifact = AetherHelper.createAetherArtifact(artifact);
            artifactRequest.setArtifact(aetherArtifact);
            artifactRequest.setRepositories(repositories);
            final ArtifactResult artifactResult = repositorySystem.resolveArtifact(repositorySystemSession, artifactRequest);

            final org.apache.maven.artifact.DefaultArtifact defaultArtifact = new org.apache.maven.artifact.DefaultArtifact(artifact.getGroupId(), artifact.getArtifactId(), artifact.getVersion(), artifact.getScope(), artifact.getType(), artifact.getClassifier(), artifact.getArtifactHandler());
            defaultArtifact.setFile(artifactResult.getArtifact().getFile());
            return defaultArtifact;
        } catch (ArtifactResolutionException e) {
            throw new MojoExecutionException("Error while resolving artifact: " + e.getMessage(), e);
        }
    }

}