private Set<MavenRepositoryMetadata> getRepositoriesResolvingArtifact(
final GAV gav, final MavenProject mavenProject) {
ArtifactResult result = null;
ArtifactRequest artifactRequest = null;
final String artifactName = gav.toString();
final Artifact artifact = new DefaultArtifact(artifactName);
final Aether aether = new Aether(mavenProject);
final Set<MavenRepositoryMetadata> repositoriesResolvingArtifact =
new HashSet<MavenRepositoryMetadata>();
final Map<MavenRepositorySource, Collection<RemoteRepository>> repositories =
getRemoteRepositories(mavenProject);
// Local Repository
artifactRequest = new ArtifactRequest();
artifactRequest.setArtifact(artifact);
try {
result = aether.getSystem().resolveArtifact(aether.getSession(), artifactRequest);
if (result != null && result.isResolved()) {
final MavenRepositoryMetadata artifactRepositoryMetaData =
makeRepositoryMetaData(result.getRepository(), MavenRepositorySource.LOCAL);
if (artifactRepositoryMetaData != null) {
repositoriesResolvingArtifact.add(artifactRepositoryMetaData);
}
}
} catch (ArtifactResolutionException are) {
// Ignore - this means the Artifact could not be resolved against the given RemoteRepository
}
// Remote Repositories
try {
for (Map.Entry<MavenRepositorySource, Collection<RemoteRepository>> e :
repositories.entrySet()) {
for (ArtifactRepository repository : e.getValue()) {
artifactRequest = new ArtifactRequest();
artifactRequest.setArtifact(artifact);
java.nio.file.Path tempLocalRepositoryBasePath = null;
try {
// Maven always tries to resolve against LocalRepository first, which is not much use
// when we want to check
// if the Artifact is available on a RemoteRepository. Therefore substitute the default
// RepositorySystemSession
// with one that provides a LocalRepositoryManager that always uses an empty transient
// LocalRepository to ensure
// Maven does not resolve Artifacts locally.
artifactRequest.addRepository((RemoteRepository) repository);
tempLocalRepositoryBasePath = getRepositoryPath(gav);
result =
aether
.getSystem()
.resolveArtifact(
new MavenRepositorySystemSessionWrapper(
tempLocalRepositoryBasePath.toString(), aether.getSession()),
artifactRequest);
if (result != null && result.isResolved()) {
final MavenRepositoryMetadata artifactRepositoryMetaData =
makeRepositoryMetaData(result.getRepository(), e.getKey());
if (artifactRepositoryMetaData != null) {
repositoriesResolvingArtifact.add(artifactRepositoryMetaData);
}
}
} catch (ArtifactResolutionException are) {
// Ignore - this means the Artifact could not be resolved against the given
// RemoteRepository
} finally {
tearDownMavenRepository(tempLocalRepositoryBasePath);
}
}
}
} catch (IOException ioe) {
log.error(
"Error resolving '"
+ gav.toString()
+ "' against Repositories. Returning empty Collection. ",
ioe);
}
return repositoriesResolvingArtifact;
}
