ArtifactRepositoryPolicy releases) {
        if (snapshots == null) {
            snapshots = new ArtifactRepositoryPolicy();
        }

        if (releases == null) {
            releases = new ArtifactRepositoryPolicy();
        }

        if (globalUpdatePolicy != null) {
            snapshots.setUpdatePolicy(globalUpdatePolicy);
            releases.setUpdatePolicy(globalUpdatePolicy);
        }

    public ArtifactRepositoryPolicy getSnapshots() {
        return snapshots;
    }

    public void setReleaseUpdatePolicy(ArtifactRepositoryPolicy releases) {
        this.releases = releases;
    }

    public ArtifactRepositoryPolicy getReleases() {
        return releases;
    }

    public String getKey() {
        return getId();
    }

    public String toString() {

            ArtifactRepositoryPolicy releases)
            throws UnknownRepositoryLayoutException;

    ArtifactRepository createArtifactRepository(
            String id,
            String url,
            ArtifactRepositoryLayout repositoryLayout,
            ArtifactRepositoryPolicy snapshots,
            ArtifactRepositoryPolicy releases);

    void setGlobalUpdatePolicy(String snapshotPolicy);

            ArtifactRepositoryPolicy snapshots = buildArtifactRepositoryPolicy(repo.getSnapshots());

            ArtifactRepositoryPolicy releases = buildArtifactRepositoryPolicy(repo.getReleases());

            return createArtifactRepository(id, url, getLayout(repo.getLayout()), snapshots, releases);
        } else {
            return null;
        }
    }

    private ArtifactRepository createRepository(

        }

        this.snapshots = snapshots;

        if (releases == null) {
            releases = new ArtifactRepositoryPolicy(
                    true,
                    ArtifactRepositoryPolicy.UPDATE_POLICY_ALWAYS,
                    ArtifactRepositoryPolicy.CHECKSUM_POLICY_IGNORE);
        }

        this.releases = releases;
    }

    public String pathOf(Artifact artifact) {

            String url,
            String layoutId,
            ArtifactRepositoryPolicy snapshots,
            ArtifactRepositoryPolicy releases)
            throws UnknownRepositoryLayoutException {
        return injectSession(factory.createArtifactRepository(id, url, layoutId, snapshots, releases), true);
    }

    public ArtifactRepository createArtifactRepository(
            String id,
            String url,

  /**
   * The type of ordering that this object specifies.
   *
   * <ul>
   *   <li>UNORDERED: no order is guaranteed.
   *   <li>STABLE: ordering is guaranteed to follow a pattern that won't change between releases.
   *       Some methods may have stronger guarantees.
   *   <li>INSERTION: insertion ordering is guaranteed.
   *   <li>SORTED: ordering according to a supplied comparator is guaranteed.
   * </ul>
   */

            ArtifactRepositoryLayout repositoryLayout,
            ArtifactRepositoryPolicy snapshots,
            ArtifactRepositoryPolicy releases) {
        if (snapshots == null) {
            snapshots = new ArtifactRepositoryPolicy();
        }

        if (releases == null) {
            releases = new ArtifactRepositoryPolicy();
        }

        ArtifactRepository repository;

                    sb.append(" (");
                    sb.append(remoteRepository.getUrl());

                    ArtifactRepositoryPolicy releases = remoteRepository.getReleases();
                    if (releases != null) {
                        sb.append(", releases=").append(releases.isEnabled());
                    }

                    ArtifactRepositoryPolicy snapshots = remoteRepository.getSnapshots();

    @Override
    public void close () {
        release(false);
    }


    public void release () {
        release(true);
    }


    /**
     * @param track
     */
    public void release ( boolean track ) {
        long usage = this.usageCount.decrementAndGet();
        if ( log.isTraceEnabled() ) {
            log.trace("Release tree " + usage + " " + this);
        }