assertSame(mirrorA, mirrorSelector.getMirror(getRepo("a", "http://a.a"), mirrors));

        assertSame(mirrorB, mirrorSelector.getMirror(getRepo("b", "http://a.a"), mirrors));

        assertSame(mirrorC2, mirrorSelector.getMirror(getRepo("c", "http://c.c"), mirrors));

        assertSame(mirrorC, mirrorSelector.getMirror(getRepo("d", "http://d"), mirrors));

     * @param mirrors The available mirrors, may be {@code null}.
     * @return The mirror specification for the repository or {@code null} if no mirror matched.
     */
    Mirror getMirror(ArtifactRepository repository, List<Mirror> mirrors);

                effectivePolicy.merge(policy);
            }
        }

        return effectivePolicy;
    }

    @Override
    public Mirror getMirror(ArtifactRepository repository, List<Mirror> mirrors) {
        return mirrorSelector.getMirror(repository, mirrors);
    }

    @Override
    public void injectMirror(List<ArtifactRepository> repositories, List<Mirror> mirrors) {

    private static final String EXTERNAL_WILDCARD = "external:*";

    private static final String EXTERNAL_HTTP_WILDCARD = "external:http:*";

    @Override
    public Mirror getMirror(ArtifactRepository repository, List<Mirror> mirrors) {
        String repoId = repository.getId();

        if (repoId != null && mirrors != null) {
            for (Mirror mirror : mirrors) {

    }

    @Deprecated
    @Override
    public ArtifactRepository getMirrorRepository(ArtifactRepository repository) {

        Mirror mirror = mirrorSelector.getMirror(
                repository, legacySupport.getSession().getSettings().getMirrors());

        if (mirror != null) {
            String id = mirror.getId();
            if (id == null) {
                // TODO this should be illegal in settings.xml

    }

    @Override
    public List<ArtifactRepository> getEffectiveRepositories(List<ArtifactRepository> repositories) {
        return repositories;
    }

    @Override
    public Mirror getMirror(ArtifactRepository repository, List<Mirror> mirrors) {
        return null;
    }

    @Override
    public void injectAuthentication(List<ArtifactRepository> repositories, List<Server> servers) {}

     * @param mirrors The available mirrors, may be {@code null}.
     * @return The mirror specification for the repository or {@code null} if no mirror matched.
     */
    Mirror getMirror(ArtifactRepository repository, List<Mirror> mirrors);

    /**
     * Injects the mirroring information into the specified repositories. For each repository that is matched by a

        String key = getMetadataKey(repository, file);

        return readLastUpdated(touchfile, key);
    }

    @Override
    public String getError(Artifact artifact, ArtifactRepository repository) {
        File touchFile = getTouchfile(artifact);
        return getError(touchFile, getRepositoryKey(repository));
    }

    @Override
    public void touch(Artifact artifact, ArtifactRepository repository, String error) {

@Deprecated
public interface UpdateCheckManager {

    boolean isUpdateRequired(Artifact artifact, ArtifactRepository repository);

    void touch(Artifact artifact, ArtifactRepository repository, String error);

    String getError(Artifact artifact, ArtifactRepository repository);

    boolean isUpdateRequired(RepositoryMetadata metadata, ArtifactRepository repository, File file);

     */
    public boolean isSuccess() {
        return returnCode == 0;
    }

    /**
     * Gets a human-readable error description.
     *
     * @return the error description
     */
    public String getError() {
        return error != null ? error : "Error code: " + returnCode;
    }

    /**
     * Sets the error message.
     *
     * @param error the error message
     */