* This class maintains registration state, heartbeat information, and
 * sequence numbers for witness protocol communication.
 */
public class WitnessRegistration {
    private final String registrationId;
    private final String shareName;
    private final InetAddress serverAddress;
    private final WitnessServiceType serviceType;
    private final WitnessVersion version;
    private final long registrationTime;

	o = msgp.Require(b, z.Msgsize())
	// map header, size 4
	// string "id"
	o = append(o, 0x84, 0xa2, 0x69, 0x64)
	o = msgp.AppendString(o, z.DiskID)
	// string "v"
	o = append(o, 0xa1, 0x76)
	o = msgp.AppendString(o, z.Volume)
	// string "fp"
	o = append(o, 0xa2, 0x66, 0x70)
	o = msgp.AppendString(o, z.FilePath)
	// string "fi"
	o = append(o, 0xa2, 0x66, 0x69)
	o, err = z.FI.MarshalMsg(o)

  }

  private static NamedObject named(String name) {
    return new NamedObject(name);
  }

  private static class NamedObject {
    private final Set<String> peerNames = new HashSet<>();

    private final String name;

    NamedObject(String name) {
      this.name = Preconditions.checkNotNull(name);
    }

    @CanIgnoreReturnValue
    NamedObject addPeers(String... names) {

    }

    /**
     * Appends a key-value pair to the buffer in JSON format.
     *
     * @param buf the string buffer to append to
     * @param key the key name
     * @param supplier the value supplier
     * @return the updated buffer
     */
    protected StringBuilder append(final StringBuilder buf, final String key, final Supplier<Object> supplier) {
        final StringBuilder tempBuf = new StringBuilder();

    assertGoodFeatureEnum(SetFeature.class);
    assertGoodFeatureEnum(CollectionSize.class);
    assertGoodFeatureEnum(MapFeature.class);
  }

  private static String rootLocaleFormat(String format, Object... args) {
    return String.format(Locale.ROOT, format, args);
  }

    public byte[] getCurrentPreauthHash(String sessionId) {
        PreauthIntegrityContext context = sessionContexts.get(sessionId);
        return context != null ? context.getCurrentHash() : null;
    }

    /**
     * Finalizes and removes the preauth integrity context for a session.
     *
     * @param sessionId the session identifier
     */
    public void finalizeSession(String sessionId) {

     *
     * @param contextHandle the context handle
     * @param shareName the share name
     * @return the registration ID
     */
    private String generateRegistrationId(byte[] contextHandle, String shareName) {
        if (contextHandle == null || contextHandle.length == 0) {
            return "WITNESS-" + System.currentTimeMillis() + "-" + shareName.hashCode();
        }

type grantee struct {
	XMLNS       string `xml:"xmlns:xsi,attr"`
	XMLXSI      string `xml:"xsi:type,attr"`
	Type        string `xml:"Type"`
	ID          string `xml:"ID,omitempty"`
	DisplayName string `xml:"DisplayName,omitempty"`
	URI         string `xml:"URI,omitempty"`
}

type grant struct {
	Grantee    grantee `xml:"Grantee"`
	Permission string  `xml:"Permission"`
}

type accessControlPolicy struct {

  public void edges_checkReturnedSetMutability() {
    Set<String> edges = network.edges();
    assertThrows(UnsupportedOperationException.class, () -> edges.add(E12));
    addEdge(N1, N2, E12);
    assertThat(network.edges()).containsExactlyElementsIn(edges);
  }

  @Override
  @Test
  public void incidentEdges_checkReturnedSetMutability() {
    addNode(N1);
    Set<String> incidentEdges = network.incidentEdges(N1);

    protected Pattern userAgentPattern;

    protected Pattern regexPattern;

    protected BiFunction<String, Matcher, String> pathMapperFunc;

    public String getId() {
        return asDocMeta().id();
    }

    public void setId(final String id) {
        asDocMeta().id(id);
    }

    public Long getVersionNo() {
        return asDocMeta().version();
    }