*
 * @since 4.0.0
 */
@Experimental
public interface ArtifactCoordinateFactory extends Service {

    /**
     * Creates a coordinate.
     *
     * @param request the request holding coordinate creation parameters
     * @return an {@code ArtifactCoordinate}, never {@code null}
     * @throws IllegalArgumentException if {@code request} is null or {@code request.session} is null or invalid
     */
    @Nonnull

            throw new ArtifactTransferFailedException(getMessage(e, "Error transferring artifact."), e);
        }
    }

    //
    // Artifact Repository Creation
    //
    public ArtifactRepository buildArtifactRepository(Repository repo) throws InvalidRepositoryException {
        if (repo != null) {
            String id = repo.getId();

     * Maven-Resolver without involving Maven Core and related things.
     * <p>
     * This type registry is NOT used by Maven Core: Maven replaces it during Session creation with a type registry
     * that supports extending it (i.e. via Maven Extensions).
     * <p>
     * Important: this "static" list of types should be in-sync with core provided types.
     */

        if (pom != null) {
            request.setMultiModuleProjectDirectory(pom.getParentFile());
        }

        return request;
    }

    // layer the creation of a project builder configuration with a request, but this will need to be
    // a Maven subclass because we don't want to couple maven to the project builder which we need to
    // separate.

                .newSession(session));

        legacySupport.setSession(session);
    }

    protected abstract String component();

    /**
     * Return an existing file, not a directory - causes creation to fail.
     *
     * @throws Exception
     */
    protected ArtifactRepository badLocalRepository() throws Exception {
        String path = "target/test-repositories/" + component() + "/bad-local-repository";

/**
 * metadata [dirty] Tree
 *
 *
 */
@Deprecated
public class MetadataTreeNode {
    ArtifactMetadata md; // this node

    MetadataTreeNode parent; // papa

    /** default # of children. Used for tree creation optimization only */
    int nChildren = 8;

    MetadataTreeNode[] children; // of cause

    public int getNChildren() {
        return nChildren;
    }

    public void setNChildren(int children) {

        } catch (IOException e) {
            return addExceptionToResult(result, e);
        }

        //
        // We enter the session scope right after the MavenSession creation and before any of the
        // AbstractLifecycleParticipant lookups
        // so that @SessionScoped components can be @Injected into AbstractLifecycleParticipants.
        //
        sessionScope.enter();

        if (pom != null) {
            request.setMultiModuleProjectDirectory(pom.getParentFile());
        }

        return request;
    }

    // layer the creation of a project builder configuration with a request, but this will need to be
    // a Maven subclass because we don't want to couple maven to the project builder which we need to
    // separate.

     *
     * @return The remote repositories to use, never {@code null}.
     */
    List<RemoteRepository> getRepositories();

    /**
     * Sets the remote repositories to use. Note: When creating a request from a project, be sure to use the
     * plugin repositories and not the regular project repositories.
     *
     * @param repositories The remote repositories to use.
     * @return This request, never {@code null}.

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.NotThreadSafe;

import static org.apache.maven.api.services.BaseRequest.nonNull;

/**
 * A request for creating a {@link ArtifactCoordinate} object.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface ArtifactCoordinateFactoryRequest {

    @Nonnull
    Session getSession();