Smack/smack-im/src/main/java/org/jivesoftware/smack/roster/provider/RosterPacketProvider.java

113 lines
4.2 KiB
Java

/**
*
* Copyright © 2003-2007 Jive Software, 2014-2015 Florian Schmaus
*
* 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.smack.roster.provider;
import java.io.IOException;
import org.jivesoftware.smack.SmackException;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.provider.IQProvider;
import org.jivesoftware.smack.roster.packet.RosterPacket;
import org.jivesoftware.smack.util.ParserUtils;
import org.jxmpp.jid.BareJid;
import org.jxmpp.jid.impl.JidCreate;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
public class RosterPacketProvider extends IQProvider<RosterPacket> {
public static final RosterPacketProvider INSTANCE = new RosterPacketProvider();
@Override
public RosterPacket parse(XmlPullParser parser, int initialDepth) throws XmlPullParserException, IOException,
SmackException {
RosterPacket roster = new RosterPacket();
String version = parser.getAttributeValue("", "ver");
roster.setVersion(version);
outerloop: while (true) {
int eventType = parser.next();
switch(eventType) {
case XmlPullParser.START_TAG:
String startTag = parser.getName();
switch (startTag) {
case "item":
RosterPacket.Item item = parseItem(parser);
roster.addRosterItem(item);
break;
}
break;
case XmlPullParser.END_TAG:
String endTag = parser.getName();
switch(endTag) {
case IQ.QUERY_ELEMENT:
if (parser.getDepth() == initialDepth) {
break outerloop;
}
}
}
}
return roster;
}
public static RosterPacket.Item parseItem(XmlPullParser parser) throws XmlPullParserException, IOException {
ParserUtils.assertAtStartTag(parser, RosterPacket.Item.ELEMENT);
final int initialDepth = parser.getDepth();
String jidString = parser.getAttributeValue("", "jid");
String itemName = parser.getAttributeValue("", "name");
BareJid jid = JidCreate.bareFrom(jidString);
// Create item.
RosterPacket.Item item = new RosterPacket.Item(jid, itemName);
// Set status.
String ask = parser.getAttributeValue("", "ask");
item.setSubscriptionPending("subscribe".equals(ask));
// Set type.
String subscription = parser.getAttributeValue("", "subscription");
RosterPacket.ItemType type = RosterPacket.ItemType.fromString(subscription);
item.setItemType(type);
// Set approval status.
boolean approved = ParserUtils.getBooleanAttribute(parser, "approved", false);
item.setApproved(approved);
outerloop: while(true) {
int eventType = parser.next();
switch (eventType) {
case XmlPullParser.START_TAG:
String name = parser.getName();
switch (name) {
case RosterPacket.Item.GROUP:
final String groupName = parser.nextText();
if (groupName != null && groupName.trim().length() > 0) {
item.addGroupName(groupName);
}
break;
}
break;
case XmlPullParser.END_TAG:
if (parser.getDepth() == initialDepth) {
break outerloop;
}
break;
}
}
ParserUtils.assertAtEndTag(parser);
assert(item != null);
return item;
}
}