CarbonManagerProvider.java
/**
*
* Copyright 2013-2014 Georg Lukas, 2020 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.smackx.carbons.provider;
import java.io.IOException;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.XmlEnvironment;
import org.jivesoftware.smack.parsing.SmackParsingException;
import org.jivesoftware.smack.provider.ExtensionElementProvider;
import org.jivesoftware.smack.xml.XmlPullParser;
import org.jivesoftware.smack.xml.XmlPullParserException;
import org.jivesoftware.smackx.carbons.packet.CarbonExtension;
import org.jivesoftware.smackx.carbons.packet.CarbonExtension.Direction;
import org.jivesoftware.smackx.forward.packet.Forwarded;
import org.jivesoftware.smackx.forward.provider.ForwardedProvider;
/**
* This class implements the {@link ExtensionElementProvider} to parse
* carbon copied messages from a packet. It will return a {@link CarbonExtension} stanza extension.
*
* @author Georg Lukas
*
*/
public class CarbonManagerProvider extends ExtensionElementProvider<CarbonExtension> {
@Override
public CarbonExtension parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment) throws XmlPullParserException, IOException, SmackParsingException {
Direction dir = Direction.valueOf(parser.getName());
Forwarded<Message> fwd = null;
boolean done = false;
while (!done) {
XmlPullParser.Event eventType = parser.next();
if (eventType == XmlPullParser.Event.START_ELEMENT && parser.getName().equals("forwarded")) {
fwd = ForwardedProvider.parseForwardedMessage(parser, xmlEnvironment);
}
else if (eventType == XmlPullParser.Event.END_ELEMENT && dir == Direction.valueOf(parser.getName()))
done = true;
}
if (fwd == null) {
throw new SmackParsingException("sent/received must contain exactly one <forwarded/> element");
}
return new CarbonExtension(dir, fwd);
}
}