import org.codehaus.plexus.logging.Logger;
import org.eclipse.aether.ConfigurationProperties;
import org.eclipse.aether.util.ConfigUtils;

// TODO remove the update check manager
// TODO separate into retriever and publisher
// TODO remove hardcoding of checksum logic

/**
 * Manages <a href="https://maven.apache.org/wagon">Wagon</a> related operations in Maven.
 */
@Named
@Singleton
@Deprecated

    Wagon getWagon(String protocol) throws UnsupportedProtocolException;

    @Deprecated
    Wagon getWagon(Repository repository) throws UnsupportedProtocolException, WagonConfigurationException;

    //
    // Retriever
    //
    void getArtifact(Artifact artifact, ArtifactRepository repository, TransferListener transferListener, boolean force)
            throws TransferFailedException, ResourceDoesNotExistException;

    /**
     * Retrieves the descriptor for the specified plugin goal from the plugin's main artifact.
     *
     * @param plugin The plugin whose mojo descriptor should be retrieved, must not be {@code null}.
     * @param goal The simple name of the mojo whose descriptor should be retrieved, must not be {@code null}.

     * indirectly depends on the given project.
     *
     * @param project The project whose downstream projects should be retrieved, must not be {@code null}.
     * @param transitive A flag whether to retrieve all direct and indirect downstream projects or just the immediate
     *            downstream projects.
     * @return The downstream projects in the build order, never {@code null}.

    MetadataResolutionRequest setRemoteRepositories(List<ArtifactRepository> remoteRepositories);

    /**
     * Determines whether the managed version information should be retrieved.
     *
     * @return {@code true} if the dependency management information should be retrieved, {@code false} otherwise.
     */
    boolean isResolveManagedVersions();

    /**
     * Enables/disables resolution of the dependency management information.

                            }
                        }
                    } catch (TransferFailedException e) {
                        getLogger()
                                .warn(metadata + " could not be retrieved from repository: " + repository.getId()
                                        + " due to an error: " + e.getMessage());
                        getLogger().debug("Exception", e);
                    } finally {

        }
    }

    @Override
    public ResolutionGroup retrieve(
            Artifact artifact, ArtifactRepository localRepository, List<ArtifactRepository> remoteRepositories)
            throws ArtifactMetadataRetrievalException {
        return retrieve(artifact, localRepository, remoteRepositories, false);
    }

    public ResolutionGroup retrieve(
            Artifact artifact,

        this.delegate = delegate;
    }

    @Override
    public ResolutionGroup retrieve(MetadataResolutionRequest request) throws ArtifactMetadataRetrievalException {
        return delegate.retrieve(request);
    }

    @Override
    public ResolutionGroup retrieve(
            Artifact artifact, ArtifactRepository localRepository, List<ArtifactRepository> remoteRepositories)

Once the ClassRealm has been populated and all Plexus components have been discovered a lookup can be performed to retrieve the primary plugin component. Currently the component would need to be looked up and then the BasicComponentConfigurator would need to configure the component with a given Plexus configuration. We will discuss later how we would retrieve the Plexus configuration required for a given plugin.

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.ThreadSafe;

/**
 * Marker interface for all services provided by the {@link Session}.
 * <p>
 * Services can be retrieved from the session using the
 * {@link Session#getService(Class)} method.
 *
 * @since 4.0.0
 * @see Session#getService(Class)
 */
@Experimental
@ThreadSafe