import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
@Test
public void subscriptionsOwnerResultTest() throws Exception {
    // @formatter:off
    final String resultStanza = 
      "<iq from='pubsub.example.org' to='[email protected]/Smack' id='HaT4m-13' type='result'>" +
        "<pubsub xmlns='http://jabber.org/protocol/pubsub#owner'>" + 
          "<subscriptions node='test'>" + 
            "<subscription jid='[email protected]/Smack' subscription='subscribed' subid='58C1A6F99F2A7'/>" +
            "<subscription jid='[email protected]/Smack' subscription='subscribed' subid='58C18F8917321'/>" +
          "</subscriptions>" +
        "</pubsub>" +
      "</iq>";
    // @formatter:on
    XmlPullParser parser = TestUtils.getIQParser(resultStanza);
    PubSub pubsubResult = (PubSub) PacketParserUtils.parseIQ(parser);
    SubscriptionsExtension subElem = pubsubResult.getExtension(PubSubElementType.SUBSCRIPTIONS);
    List<Subscription> subscriptions = subElem.getSubscriptions();
    assertEquals(2, subscriptions.size());

    Subscription sub1 = subscriptions.get(0);
    assertEquals("[email protected]/Smack", sub1.getJid());
    assertEquals(Subscription.State.subscribed, sub1.getState());
    assertEquals("58C1A6F99F2A7", sub1.getId());

    Subscription sub2 = subscriptions.get(1);
    assertEquals("[email protected]/Smack", sub2.getJid());
    assertEquals(Subscription.State.subscribed, sub2.getState());
    assertEquals("58C18F8917321", sub2.getId());
}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
/** 
 * Get a {@link ConfigureForm} from a packet.
 * 
 * @param packet
 * @param elem
 * @return The configuration form
 */
public static ConfigureForm getFormFromPacket(Packet packet, PubSubElementType elem)
{
	FormNode config = (FormNode)packet.getExtension(elem.getElementName(), elem.getNamespace().getXmlns());
	Form formReply = config.getForm();
	return new ConfigureForm(formReply);

}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
@Override
protected PacketExtension createReturnExtension(String currentElement,
		String currentNamespace, Map<String, String> attributeMap,
		List<? extends PacketExtension> content) {
	return new NodeExtension(PubSubElementType.valueOfFromElemName(
			currentElement, currentNamespace), attributeMap.get("node"));
}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
/**
 * Get a {@link ConfigureForm} from a packet.
 * 
 * @param packet
 * @param elem
 * @return The configuration form
 */
public static ConfigureForm getFormFromPacket(Packet packet,
		PubSubElementType elem) {
	FormNode config = (FormNode) packet.getExtension(elem.getElementName(),
			elem.getNamespace().getXmlns());
	Form formReply = config.getForm();
	return new ConfigureForm(formReply);

}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
@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"));
}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
@SuppressWarnings("unchecked")
   public <PE extends ExtensionElement> PE getExtension(PubSubElementType elem)
{
	return (PE) getExtension(elem.getElementName(), elem.getNamespace().getXmlns());
}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
@Override
protected PacketExtension createReturnExtension(String currentElement, String currentNamespace, Map<String, String> attributeMap, List<? extends PacketExtension> content)
{
       return new NodeExtension(PubSubElementType.valueOfFromElemName(currentElement, currentNamespace), attributeMap.get("node"));
}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
public PacketExtension getExtension(PubSubElementType elem)
{
	return getExtension(elem.getElementName(), elem.getNamespace().getXmlns());
}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
public PacketExtension getExtension(PubSubElementType elem) {
	return getExtension(elem.getElementName(), elem.getNamespace()
			.getXmlns());
}
 

import org.jivesoftware.smackx.pubsub.PubSubElementType; //导入依赖的package包/类
/** 
 * Get a {@link ConfigureForm} from a packet.
 * 
 * @param packet
 * @param elem
 * @return The configuration form
 */
public static ConfigureForm getFormFromPacket(Stanza packet, PubSubElementType elem)
{
	FormNode config = packet.getExtension(elem.getElementName(), elem.getNamespace().getXmlns());
	Form formReply = config.getForm();
	return new ConfigureForm(formReply);
}