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/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright 2003-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.provider;
import java.util.ArrayList;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.jivesoftware.smackx.*;
import org.jivesoftware.smackx.packet.*;
import org.xmlpull.v1.XmlPullParser;
/**
*
* The RosterExchangeProvider parses RosterExchange packets.
*
* @author Gaston Dombiak
*/
public class RosterExchangeProvider implements PacketExtensionProvider {
/**
* Creates a new RosterExchangeProvider.
* ProviderManager requires that every PacketExtensionProvider has a public, no-argument constructor
*/
public RosterExchangeProvider() {
}
/**
* Parses a RosterExchange packet (extension sub-packet).
*
* @param parser the XML parser, positioned at the starting element of the extension.
* @return a PacketExtension.
* @throws Exception if a parsing error occurs.
*/
public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
RosterExchange rosterExchange = new RosterExchange();
boolean done = false;
RemoteRosterEntry remoteRosterEntry = null;
String jid = "";
String name = "";
ArrayList<String> groupsName = new ArrayList<String>();
while (!done) {
int eventType = parser.next();
if (eventType == XmlPullParser.START_TAG) {
if (parser.getName().equals("item")) {
// Reset this variable since they are optional for each item
groupsName = new ArrayList<String>();
// Initialize the variables from the parsed XML
jid = parser.getAttributeValue("", "jid");
name = parser.getAttributeValue("", "name");
}
if (parser.getName().equals("group")) {
groupsName.add(parser.nextText());
}
} else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals("item")) {
// Create packet.
remoteRosterEntry = new RemoteRosterEntry(jid, name, (String[]) groupsName.toArray(new String[groupsName.size()]));
rosterExchange.addRosterEntry(remoteRosterEntry);
}
if (parser.getName().equals("x")) {
done = true;
}
}
}
return rosterExchange;
}
}
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