How to use

NodeExtension

in

org.jivesoftware.smackx.pubsub

  @Override
  protected NodeExtension createReturnExtension(String currentElement, String currentNamespace, Map<String, String> attributeMap, List<? extends ExtensionElement> content) {
    return new NodeExtension(PubSubElementType.valueOfFromElemName(currentElement, currentNamespace), attributeMap.get("node"));
  }
}

/**
 * Creates an instant node, if supported.
 *
 * @return The node that was created
 * @throws XMPPErrorException
 * @throws NoResponseException
 * @throws NotConnectedException
 * @throws InterruptedException
 */
public LeafNode createNode() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
  PubSub reply = sendPubsubPacket(Type.set, new NodeExtension(PubSubElementType.CREATE), null);
  NodeExtension elem = reply.getExtension("create", PubSubNamespace.basic.getXmlns());
  LeafNode newNode = new LeafNode(this, elem.getNode());
  nodeMap.put(newNode.getId(), newNode);
  return newNode;
}

  @Override
  public boolean acceptSpecific(Message message) {
    EventElement event = EventElement.from(message);
    if (event == null)
      return false;
    NodeExtension embedEvent = event.getEvent();
    if (embedEvent == null)
      return false;
    if (embedEvent.getElementName().equals(firstElement)) {
      if (!embedEvent.getNode().equals(getId()))
        return false;
      if (secondElement == null)
        return true;
      if (embedEvent instanceof EmbeddedPacketExtension) {
        List<ExtensionElement> secondLevelList = ((EmbeddedPacketExtension) embedEvent).getExtensions();
        // XEP-0060 allows no elements on second level for notifications. See schema or
        // for example § 4.3:
        // "although event notifications MUST include an empty <items/> element;"
        if (allowEmpty && secondLevelList.isEmpty()) {
          return true;
        }
        if (secondLevelList.size() > 0 && secondLevelList.get(0).getElementName().equals(secondElement))
          return true;
      }
    }
    return false;
  }
}

  @Override
  public String toString() {
    return getClass().getName() + " - content [" + toXML(null) + "]";
  }
}

@Override
public CharSequence toXML(String enclosingNamespace) {
  return '<' + getElementName() + (node == null ? "" : " node='" + node + '\'') + "/>";
}

  @Override
  public void eventReceived(final EntityBareJid from, final EventElement event, final Message message) {
    if (PEP_NODE_PUBLIC_KEYS.equals(event.getEvent().getNode())) {
      final BareJid contact = from.asBareJid();
      LOGGER.log(Level.INFO, "Received OpenPGP metadata update from " + contact);
      Async.go(new Runnable() {
        @Override
        public void run() {
          ItemsExtension items = (ItemsExtension) event.getExtensions().get(0);
          PayloadItem<?> payload = (PayloadItem) items.getItems().get(0);
          PublicKeysListElement listElement = (PublicKeysListElement) payload.getPayload();
          processPublicKeysListElement(from, listElement);
        }
      }, "ProcessOXMetadata");
    }
  }
};

@Override
public final String getNamespace() {
  return getPubSubNamespace().getXmlns();
}

  @Override
  public CharSequence toXML(String enclosingNamespace) {
    if ((items == null) || (items.size() == 0)) {
      return super.toXML(enclosingNamespace);
    }
    else {
      StringBuilder builder = new StringBuilder("<");
      builder.append(getElementName());

      if (getNode() != null) {
        builder.append(" node='");
        builder.append(getNode());
        builder.append('\'');
      }
      builder.append('>');

      for (Subscription item : items) {
        builder.append(item.toXML(null));
      }

      builder.append("</");
      builder.append(getElementName());
      builder.append('>');
      return builder.toString();
    }
  }
}

public String toXML()
{
  return '<' + getElementName() + (node == null ? "" : " node='" + node + '\'') + "/>";
}

  @Override
  public void eventReceived(final EntityBareJid from, final EventElement event, final Message message) {
    if (!MOOD_NODE.equals(event.getEvent().getNode())) {
      return;
    }
    final BareJid contact = from.asBareJid();
    asyncButOrdered.performAsyncButOrdered(contact, new Runnable() {
      @Override
      public void run() {
        ItemsExtension items = (ItemsExtension) event.getExtensions().get(0);
        PayloadItem<?> payload = (PayloadItem) items.getItems().get(0);
        MoodElement mood = (MoodElement) payload.getPayload();
        for (MoodListener listener : moodListeners) {
          listener.onMoodUpdated(contact, message, mood);
        }
      }
    });
  }
});

  public static PubSub createPubsubPacket(Jid to, Type type, NodeExtension extension) {
    PubSub pubSub = new PubSub(to, type, extension.getPubSubNamespace());
    pubSub.addExtension(extension);
    return pubSub;
  }
}

/**
 * Returns the default settings for Node configuration.
 *
 * @return configuration form containing the default settings.
 * @throws XMPPErrorException
 * @throws NoResponseException
 * @throws NotConnectedException
 * @throws InterruptedException
 */
public ConfigureForm getDefaultConfiguration() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
  // Errors will cause exceptions in getReply, so it only returns
  // on success.
  PubSub reply = sendPubsubPacket(Type.get, new NodeExtension(PubSubElementType.DEFAULT), PubSubElementType.DEFAULT.getNamespace());
  return NodeUtils.getFormFromPacket(reply, PubSubElementType.DEFAULT);
}

/**
 * Creates an instant node, if supported.
 * 
 * @return The node that was created
 * @exception XMPPException
 */
public LeafNode createNode()
  throws XMPPException
{
  PubSub reply = (PubSub)sendPubsubPacket(Type.SET, new NodeExtension(PubSubElementType.CREATE));
  NodeExtension elem = (NodeExtension)reply.getExtension("create", PubSubNamespace.BASIC.getXmlns());
  
  LeafNode newNode = new LeafNode(con, elem.getNode());
  newNode.setTo(to);
  nodeMap.put(newNode.getId(), newNode);
  
  return newNode;
}

@Override
public CharSequence toXML(String enclosingNamespace) {
  if ((items == null) || (items.size() == 0)) {
    return super.toXML(enclosingNamespace);
  }
  else {
    StringBuilder builder = new StringBuilder("<");
    builder.append(getElementName());
    builder.append(" node='");
    builder.append(getNode());
    if (notify != null) {
      builder.append("' ");
      builder.append(type.getElementAttribute());
      builder.append("='");
      builder.append(notify.equals(Boolean.TRUE) ? 1 : 0);
      builder.append("'>");
    }
    else {
      builder.append("'>");
      for (NamedElement item : items) {
        builder.append(item.toXML(null));
      }
    }
    builder.append("</");
    builder.append(getElementName());
    builder.append('>');
    return builder.toString();
  }
}

  return false;
if (embedEvent.getElementName().equals(firstElement))
  if (!embedEvent.getNode().equals(getId()))
    return false;

public String toXML()
{
  return '<' + getElementName() + (node == null ? "" : " node='" + node + '\'') + "/>";
}

/**
 * Gets the affiliations on the root node.
 *
 * @return List of affiliations
 * @throws XMPPErrorException
 * @throws NoResponseException
 * @throws NotConnectedException
 * @throws InterruptedException
 *
 */
public List<Affiliation> getAffiliations() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
  PubSub reply = sendPubsubPacket(Type.get, new NodeExtension(PubSubElementType.AFFILIATIONS), null);
  AffiliationsExtension listElem = reply.getExtension(PubSubElementType.AFFILIATIONS);
  return listElem.getAffiliations();
}

/**
 * Creates an instant node, if supported.
 * 
 * @return The node that was created
 * @exception XMPPException
 */
public LeafNode createNode()
  throws XMPPException
{
  PubSub reply = (PubSub)sendPubsubPacket(Type.SET, new NodeExtension(PubSubElementType.CREATE));
  NodeExtension elem = (NodeExtension)reply.getExtension("create", PubSubNamespace.BASIC.getXmlns());
  
  LeafNode newNode = new LeafNode(con, elem.getNode());
  newNode.setTo(to);
  nodeMap.put(newNode.getId(), newNode);
  
  return newNode;
}
 

@Override
public CharSequence toXML(String enclosingNamespace) {
  if (configForm == null) {
    return super.toXML(enclosingNamespace);
  }
  else {
    StringBuilder builder = new StringBuilder("<");
    builder.append(getElementName());
    if (getNode() != null) {
      builder.append(" node='");
      builder.append(getNode());
      builder.append("'>");
    }
    else
      builder.append('>');
    builder.append(configForm.getDataFormToSend().toXML(null));
    builder.append("</");
    builder.append(getElementName() + '>');
    return builder.toString();
  }
}

  return false;
if (embedEvent.getElementName().equals(firstElement))
  if (!embedEvent.getNode().equals(getId()))
    return false;