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Smack/jingle/extension/source/org/jivesoftware/smackx/provider/JingleProvider.java

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/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright 2003-2005 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 org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.provider.IQProvider;
import org.jivesoftware.smackx.packet.Jingle;
import org.jivesoftware.smackx.packet.JingleContentDescription;
import org.jivesoftware.smackx.packet.JingleContentInfo;
import org.jivesoftware.smackx.packet.JingleTransport;
import org.xmlpull.v1.XmlPullParser;
/**
* The JingleProvider parses Jingle packets.
*
* @author Alvaro Saurin
*/
public class JingleProvider implements IQProvider {
/**
* Creates a new provider. ProviderManager requires that every
* PacketExtensionProvider has a public, no-argument constructor
*/
public JingleProvider() {
super();
}
/**
* Parse a iq/jingle element.
*/
public IQ parseIQ(final XmlPullParser parser) throws Exception {
Jingle jingle = new Jingle();
String sid = "";
Jingle.Action action;
String initiator = "";
String responder = "";
boolean done = false;
// Sub-elements providers
JingleContentDescriptionProvider jdpAudio = new JingleContentDescriptionProvider.Audio();
JingleTransportProvider jtpRawUdp = new JingleTransportProvider.RawUdp();
JingleTransportProvider jtpIce = new JingleTransportProvider.Ice();
JingleContentInfoProvider jmipAudio = new JingleContentInfoProvider.Audio();
int eventType;
String elementName;
String namespace;
// Get some attributes for the <jingle> element
sid = parser.getAttributeValue("", "sid");
action = Jingle.Action.getAction(parser.getAttributeValue("", "action"));
initiator = parser.getAttributeValue("", "initiator");
responder = parser.getAttributeValue("", "responder");
jingle.setSid(sid);
jingle.setAction(action);
jingle.setInitiator(initiator);
jingle.setResponder(responder);
// Start processing sub-elements
while (!done) {
eventType = parser.next();
elementName = parser.getName();
namespace = parser.getNamespace();
if (eventType == XmlPullParser.START_TAG) {
// Parse some well know subelements, depending on the namespaces
// and element names...
if (elementName.equals(JingleContentDescription.NODENAME)
&& namespace.equals(JingleContentDescription.Audio.NAMESPACE)) {
jingle.addDescription((JingleContentDescription) jdpAudio
.parseExtension(parser));
} else if (elementName.equals(JingleTransport.NODENAME)) {
// Parse the possible transport namespaces
if (namespace.equals(JingleTransport.RawUdp.NAMESPACE)) {
jingle.addTransport((JingleTransport) jtpRawUdp
.parseExtension(parser));
} else if (namespace.equals(JingleTransport.Ice.NAMESPACE)) {
jingle.addTransport((JingleTransport) jtpIce
.parseExtension(parser));
} else {
throw new XMPPException("Unknown transport namespace \""
+ namespace + "\" in Jingle packet.");
}
} else if (namespace.equals(JingleContentInfo.Audio.NAMESPACE)) {
jingle.setContentInfo((JingleContentInfo) jmipAudio
.parseExtension(parser));
} else if (elementName.equals("content")) {
//TODO Separate Contents (XEP-0166)
} else {
throw new XMPPException("Unknown combination of namespace \""
+ namespace + "\" and element name \"" + elementName
+ "\" in Jingle packet.");
}
} else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals(Jingle.getElementName())) {
done = true;
}
}
}
return jingle;
}
}