Examples of com.sun.jini.discovery.Discovery

com.sun.jini.discovery.Discovery

Class providing methods for participating in versions 1 and 2 of the discovery protocol.

Logging

This implementation uses the {@link java.util.logging.Logger}s named com.sun.jini.discovery.DiscoveryV1 and com.sun.jini.discovery.DiscoveryV2 to log information at the following logging levels:

**`com.sun.jini.discovery.DiscoveryV1`**
Level	Description
{@link java.util.logging.Level#FINEST FINEST}	Encoding and decoding of discovery protocol version 1 multicast requests, multicast announcements, and unicast responses

**`com.sun.jini.discovery.DiscoveryV2`**
Level	Description
{@link java.util.logging.Level#WARNING WARNING}	Truncation of unicast request format ID list due to length; discovery format providers that are unusable or have conflicting discovery format IDs
{@link com.sun.jini.logging.Levels#HANDLED HANDLED}	Constraint check failures encountered during the unicast discovery handshake when determining a suitable discovery format to use
{@link java.util.logging.Level#FINEST FINEST}	Encoding and decoding of discovery protocol version 2 multicast requests, multicast announcements, and unicast responses; also, access of `Discovery` instances implementing protocol version 2

@author Sun Microsystems, Inc. @since 2.0

  private boolean announce(String[] groups) {
      if (dataPackets == null || !lastLocator.equals(myLocator) ||
          !Arrays.equals(lastGroups, groups))
      {
          List packets = new ArrayList();
          Discovery disco;
          try {
        disco = getDiscovery(multicastAnnouncementConstraints
           .chooseProtocolVersion());
          } catch (DiscoveryProtocolException e) {
        throw new AssertionError(e);
          }
          EncodeIterator ei = disco.encodeMulticastAnnouncement(
        new MulticastAnnouncement(announcementSeqNo++,
            myLocator.getHost(),
            myLocator.getPort(),
            groups,
            myServiceID),

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    pkt.getData(), pkt.getOffset(), pkt.getLength()).getInt();
  } catch (BufferUnderflowException e) {
      throw new DiscoveryProtocolException(null, e);
  }
  multicastAnnouncementConstraints.checkProtocolVersion(pv);
  final Discovery disco = getDiscovery(pv);


  try {
      return (MulticastAnnouncement) AccessController.doPrivileged(
    securityContext.wrap(new PrivilegedExceptionAction() {
        public Object run() throws IOException {
      return disco.decodeMulticastAnnouncement(
          pkt,
          multicastAnnouncementConstraints.
        getUnfulfilledConstraints(),
        true);
        }

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     */
    private DatagramPacket[] encodeMulticastRequest(final MulticastRequest req)
  throws IOException
    {
  // REMIND: cache latest request to skip re-encoding
  final Discovery disco = getDiscovery(
      multicastRequestConstraints.chooseProtocolVersion());
  final List packets = new ArrayList();
  AccessController.doPrivileged(
      securityContext.wrap(new PrivilegedAction() {
    public Object run() {
        EncodeIterator ei = disco.encodeMulticastRequest(
      req, 
      multicastRequestConstraints.getMulticastMaxPacketSize(
          DEFAULT_MAX_PACKET_SIZE),
      multicastRequestConstraints.getUnfulfilledConstraints()
        );

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    private UnicastResponse doUnicastDiscovery(
      final Socket socket,
      final DiscoveryConstraints unicastDiscoveryConstraints)
  throws IOException, ClassNotFoundException
    {
  Discovery disco =
      getDiscovery(unicastDiscoveryConstraints.chooseProtocolVersion());
  return doUnicastDiscovery(socket, unicastDiscoveryConstraints, disco);
    }

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      // We'll just try to use the host name later anyway.
  }
  
  DiscoveryConstraints dc = DiscoveryConstraints.process(constraints);
  int pv = dc.chooseProtocolVersion();
  Discovery disco;
  switch (pv) {
      case Discovery.PROTOCOL_VERSION_1:
    disco = Discovery.getProtocol1();
    break;
      case Discovery.PROTOCOL_VERSION_2:

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   * interrupted, otherwise return true.
   */
  private boolean announce(String[] groups) {
      // REMIND: cache latest announcement to skip re-encoding
      List packets = new ArrayList();
      Discovery disco;
      try {
    disco = getDiscovery(
        multicastAnnouncementConstraints.chooseProtocolVersion());
      } catch (DiscoveryProtocolException e) {
    throw new AssertionError(e);
      }
      EncodeIterator ei = disco.encodeMulticastAnnouncement(
    new MulticastAnnouncement(System.currentTimeMillis(),
            lookupLocator.getHost(),
            lookupLocator.getPort(),
            groups,
            lookupServiceID),

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  private boolean announce(String[] groups) {
      if (dataPackets == null || !lastLocator.equals(myLocator) ||
          !Arrays.equals(lastGroups, groups))
      {
          List packets = new ArrayList();
          Discovery disco;
          try {
        disco = getDiscovery(multicastAnnouncementConstraints
           .chooseProtocolVersion());
          } catch (DiscoveryProtocolException e) {
        throw new AssertionError(e);
          }
          EncodeIterator ei = disco.encodeMulticastAnnouncement(
        new MulticastAnnouncement(announcementSeqNo++,
            myLocator.getHost(),
            myLocator.getPort(),
            groups,
            myServiceID),

View Full Code Here

    private static void checkClassLoaderGC() 
      throws java.net.MalformedURLException 
    {
  ClassLoader cl = getDummyClassLoader();
  Reference wcr = new WeakReference(cl);
  Discovery d = Discovery.getProtocol2((ClassLoader) cl);
  cl = null;
  System.gc();
  if (wcr.get() != null) {
      throw new AssertionError("Class loader not freed");
  }

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    // that a non-null instance is returned for the given class loader.
    private static void checkDiscoveryGC() 
        throws java.net.MalformedURLException 
    {
  ClassLoader cl = getDummyClassLoader();
  Discovery d = Discovery.getProtocol2((ClassLoader) cl);
  SoftReference sdr = new SoftReference(d);
  d = null;
  clearRefs();
  if (sdr.get() != null) {
      throw new AssertionError("Discovery instance not freed");

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  // Wait for AcceptThread to set up its socket.
  Thread.sleep(1000);
  
  MulticastSocket mcSocket = new MulticastSocket(DISCOVERYPORT);
  mcSocket.setTimeToLive(1);
  Discovery d = Discovery.getProtocol1();
  ServiceID sid = new ServiceID(5555, 4444);
  MulticastAnnouncement ma = new MulticastAnnouncement(
            2222,
            InetAddress.getLocalHost().getHostName(),
            DISCOVERYPORT, 
            groups,
            sid);
                   
  final List packets = new ArrayList();
  EncodeIterator ei = d.encodeMulticastAnnouncement(ma, 1024, null);
  while (ei.hasNext()) {
      packets.addAll(Arrays.asList(ei.next()));
  }
  DatagramPacket[] pArray = (DatagramPacket[]) packets.toArray(
            new DatagramPacket[packets.size()]);

View Full Code Here

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com.sun.jini.discovery.internal.MultiIPDiscovery

com.sun.jini.reggie.RegistrarImpl$AnnounceThread

com.sun.jini.test.impl.discoveryproviders.DiscoveryV2CachingTest

com.sun.jini.test.impl.lookupdiscovery.UnicastDelay

com.sun.jini.test.share.DiscoveryProtocolSimulator$AnnounceThread

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