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package de.thedevstack.conversationsplus.xmpp.pubsub;
import de.thedevstack.conversationsplus.xml.Element;
import de.thedevstack.conversationsplus.xmpp.stanzas.IqPacket;
/**
* Generates the IQ packets for Pubsub Subscription as defined in XEP-0060.
* @see <a href="http://xmpp.org/extensions/xep-0060.html">http://xmpp.org/extensions/xep-0060.html</a>
*/
public final class PubSubPacketGenerator {
/**
* Generates a pubsub publish packet.
* The attributes from and id are not set in here - this is added while sending the packet.
* <pre>
* <iq type='set'
* from='hamlet@denmark.lit/blogbot'
* to='pubsub.shakespeare.lit'
* id='publish1'>
* <pubsub xmlns='http://jabber.org/protocol/pubsub'>
* <publish node='princely_musings'>
* <item id='bnd81g37d61f49fgn581'>
* ...
* </item>
* </publish>
* </pubsub>
* </iq>
* </pre>
* @param nodeName the name of the publish node
* @param item the item element
* @return the generated PubSubPacket
*/
public static PubSubPacket generatePubSubPublishPacket(String nodeName, Element item) {
final PubSubPacket pubsub = new PubSubPacket(IqPacket.TYPE.SET);
final Element publish = pubsub.addChild("publish");
publish.setAttribute("node", nodeName);
publish.addChild(item);
return pubsub;
}
/**
* Generates a pubsub retrieve packet.
* The attributes from and id are not set in here - this is added while sending the packet.
* <pre>
* <iq type='get'
* from='romeo@montague.lit/home'
* to='juliet@capulet.lit'
* id='retrieve1'>
* <pubsub xmlns='http://jabber.org/protocol/pubsub'>
* <items node='urn:xmpp:avatar:data'>
* <item id='111f4b3c50d7b0df729d299bc6f8e9ef9066971f'/>
* </items>
* </pubsub>
* </iq>
* </pre>
* @param nodeName
* @param item
* @return
*/
public static PubSubPacket generatePubSubRetrievePacket(String nodeName, Element item) {
final PubSubPacket pubsub = new PubSubPacket(IqPacket.TYPE.GET);
final Element items = pubsub.addChild("items");
items.setAttribute("node", nodeName);
if (item != null) {
items.addChild(item);
}
return pubsub;
}
/**
* Utility class - avoid instantiation
*/
private PubSubPacketGenerator() {
// Avoid instantiation
}
}
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