/*
* Sonatype Nexus (TM) Open Source Version
* Copyright (c) 2007-2014 Sonatype, Inc.
* All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
*
* This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
* which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
* of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
* Eclipse Foundation. All other trademarks are the property of their respective owners.
*/
package org.sonatype.nexus.plugins.mavenbridge.workspace;
import java.io.File;
import java.util.Collections;
import java.util.List;
import org.sonatype.nexus.proxy.item.StorageFileItem;
import org.sonatype.nexus.proxy.maven.ArtifactStoreRequest;
import org.sonatype.nexus.proxy.maven.MavenRepository;
import org.sonatype.nexus.proxy.maven.gav.Gav;
import org.sonatype.nexus.proxy.storage.local.fs.DefaultFSLocalRepositoryStorage;
import org.apache.commons.lang.StringUtils;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.repository.WorkspaceReader;
import org.eclipse.aether.repository.WorkspaceRepository;
public class NexusWorkspaceReader
implements WorkspaceReader
{
private final NexusWorkspace nexusWorkspace;
private final WorkspaceRepository workspaceRepository;
public NexusWorkspaceReader(NexusWorkspace nexusWorkspace) {
this.nexusWorkspace = nexusWorkspace;
this.workspaceRepository = new WorkspaceRepository("nexus", nexusWorkspace.getId());
}
public WorkspaceRepository getRepository() {
return workspaceRepository;
}
/**
* This method will in case of released artifact request just locate it, and return if found. In case of snapshot
* repository, if it needs resolving, will resolve it 1st and than locate it. It will obey to the session (global
* update policy, that correspondos to Maven CLI "-U" option.
*/
public File findArtifact(Artifact artifact) {
Gav gav = toGav(artifact);
ArtifactStoreRequest gavRequest;
for (MavenRepository mavenRepository : nexusWorkspace.getRepositories()) {
gavRequest = new ArtifactStoreRequest(mavenRepository, gav, false, false);
try {
StorageFileItem artifactFile = mavenRepository.getArtifactStoreHelper().retrieveArtifact(gavRequest);
// this will work with local FS storage only, since Aether wants java.io.File
if (artifactFile.getRepositoryItemUid().getRepository()
.getLocalStorage() instanceof DefaultFSLocalRepositoryStorage) {
DefaultFSLocalRepositoryStorage ls =
(DefaultFSLocalRepositoryStorage) artifactFile.getRepositoryItemUid().getRepository().getLocalStorage();
return ls.getFileFromBase(artifactFile.getRepositoryItemUid().getRepository(), gavRequest);
}
}
catch (Exception e) {
// Something wrong happen for this repository, let's process the next one
}
}
return null;
}
private Gav toGav(Artifact artifact) {
// fix for bug in M2GavCalculator
final String classifier = StringUtils.isEmpty(artifact.getClassifier()) ? null : artifact.getClassifier();
final Gav gav =
new Gav(artifact.getGroupId(), artifact.getArtifactId(), artifact.getVersion(), classifier,
artifact.getExtension(), null, null, null, false, null, false, null);
return gav;
}
/**
* Basically, this method will read the GA metadata, and return the "known versions".
*/
public List<String> findVersions(Artifact artifact) {
Gav gav = toGav(artifact);
if (gav.isSnapshot()) {
ArtifactStoreRequest gavRequest;
for (MavenRepository mavenRepository : nexusWorkspace.getRepositories()) {
gavRequest = new ArtifactStoreRequest(mavenRepository, gav, false, false);
try {
Gav snapshot = mavenRepository.getMetadataManager().resolveSnapshot(gavRequest, gav);
return Collections.singletonList(snapshot.getVersion());
}
catch (Exception e) {
// try next repo
continue;
}
}
}
return Collections.emptyList();
}
}