*
     * @return the metadata, or <code>null</code> if none loaded
     */
    Metadata getMetadata();

    /**
     * Set the metadata contents.
     *
     * @param metadata the metadata
     */
    void setMetadata(Metadata metadata);

    /**
     * Whether this represents a snapshot.
     *
     * @return if it is a snapshot
     */

                previousMetadata.put(remoteRepository, metadata);
            }

            if (repoMetadata.getMetadata() != null) {
                setRepository = repoMetadata.getMetadata().merge(metadata);
            } else {
                repoMetadata.setMetadata(metadata);
                setRepository = true;
            }
        }
        return setRepository;
    }

    /*

        versioning.setSnapshot(snapshot);
        return versioning;
    }

    @Override
    public void setMetadata(Metadata metadata) {
        this.metadata = metadata;
    }

    @Override
    public Metadata getMetadata() {
        return metadata;
    }

    @Override
    public void merge(org.apache.maven.repository.legacy.metadata.ArtifactMetadata metadata) {

        @Override
        public void setEncoding(String encoding) {
        }

        @Override
        public void setMethod(String method) {
        }

        @Override
        public void setMetaData(String metaData) {
        }

        @Override
        public void setId(String id) {
        }
    }

    public void test_urlQueueKeyObject() {

        addPluginMapping(goalPrefix, artifactId, artifactId);
    }

    public void addPluginMapping(String goalPrefix, String artifactId, String name) {
        List<Plugin> plugins = getMetadata().getPlugins();
        boolean found = false;
        for (Iterator<Plugin> i = plugins.iterator(); i.hasNext() && !found; ) {
            Plugin plugin = i.next();
            if (plugin.getPrefix().equals(goalPrefix)) {

            }

            RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata(artifact, snapshot);

            artifact.setResolvedVersion(
                    constructVersion(metadata.getMetadata().getVersioning(), artifact.getBaseVersion()));

            artifact.addMetadata(metadata);
        }
    }

    public String getDeploymentTimestamp() {
        if (deploymentTimestamp == null) {

     */
    void clearSensitiveData();

    /**
     * Gets authentication metadata for auditing
     *
     * @return authentication metadata
     */
    AuthenticationMetadata getMetadata();

    /**
     * Authentication metadata for auditing and logging
     */
    class AuthenticationMetadata {
        private final String username;
        private final String domain;

        LocalMetadataResult result = new LocalMetadataResult(request);

        String path;

        Metadata metadata = request.getMetadata();
        String context = request.getContext();
        RemoteRepository remote = request.getRepository();

        if (remote != null) {
            path = getPathForRemoteMetadata(metadata, remote, context);

            result = repoSystem.deploy(session, request);
        } catch (DeploymentException e) {
            throw new ArtifactDeploymentException(e.getMessage(), e);
        }

        for (Object metadata : result.getMetadata()) {
            if (metadata.getClass().getName().endsWith(".internal.VersionsMetadata")) {
                relatedMetadata.put(versionKey, (MergeableMetadata) metadata);
            }

        }

        repositoryMetadataManager.resolve(metadata, request);

        artifact.addMetadata(metadata);

        Metadata repoMetadata = metadata.getMetadata();
        String version = null;
        if (repoMetadata != null && repoMetadata.getVersioning() != null) {
            version = constructVersion(repoMetadata.getVersioning(), artifact.getBaseVersion());
        }