How to use

UUIDCollectionMessage

in

org.apache.ignite.internal.util

  @Override public Collection<UUID> apply(UUIDCollectionMessage msg) {
    return msg.uuids();
  }
};

  @Override public UUIDCollectionMessage apply(Collection<UUID> uuids) {
    return new UUIDCollectionMessage(uuids);
  }
};

/**
 *
 */
@Test
public void testMarshal() {
  UUIDCollectionMessage um0 = UUIDCollectionMessage.of();
  UUIDCollectionMessage um1 = UUIDCollectionMessage.of(randomUUID());
  UUIDCollectionMessage um2 = UUIDCollectionMessage.of(randomUUID(), randomUUID());
  UUIDCollectionMessage um3 = UUIDCollectionMessage.of(randomUUID(), randomUUID(), randomUUID());
  assertNull(um0);
  assertEquals(3, um3.uuids().size());
  proto = 2;
  doTestMarshal(um0, um1, um2, um3);
  proto = 1;
  doTestMarshal(um0, um1, um2, um3);
}

/** {@inheritDoc} */
@Override public boolean writeTo(ByteBuffer buf, MessageWriter writer) {
  writer.setBuffer(buf);
  if (!writer.isHeaderWritten()) {
    if (!writer.writeHeader(directType(), fieldsCount()))
      return false;
    writer.onHeaderWritten();
  }
  switch (writer.state()) {
    case 0:
      if (!writer.writeCollection("uuids", uuids, MessageCollectionItemType.UUID))
        return false;
      writer.incrementState();
  }
  return true;
}

/** {@inheritDoc} */
@Override public boolean writeTo(ByteBuffer buf, MessageWriter writer) {
  writer.setBuffer(buf);
  if (!writer.isHeaderWritten()) {
    if (!writer.writeHeader(directType(), fieldsCount()))
      return false;
    writer.onHeaderWritten();
  }
  switch (writer.state()) {
    case 0:
      if (!writer.writeCollection("uuids", uuids, MessageCollectionItemType.UUID))
        return false;
      writer.incrementState();
  }
  return true;
}

  @Override public Collection<UUID> apply(UUIDCollectionMessage msg) {
    return msg.uuids();
  }
};

/**
 * @param uuids UUIDs.
 * @return Message.
 */
public static UUIDCollectionMessage of(UUID... uuids) {
  if (uuids == null || uuids.length == 0)
    return null;
  List<UUID> list = uuids.length == 1 ? Collections.singletonList(uuids[0]) : Arrays.asList(uuids);
  return new UUIDCollectionMessage(list);
}

  @Override public UUIDCollectionMessage apply(Collection<UUID> uuids) {
    return new UUIDCollectionMessage(uuids);
  }
};

/**
 * @param uuids UUIDs.
 * @return Message.
 */
public static UUIDCollectionMessage of(UUID... uuids) {
  if (uuids == null || uuids.length == 0)
    return null;
  List<UUID> list = uuids.length == 1 ? Collections.singletonList(uuids[0]) : Arrays.asList(uuids);
  return new UUIDCollectionMessage(list);
}

msg = new UUIDCollectionMessage();

msg = new UUIDCollectionMessage();