/**
* $RCSfile: JingleTransportProvider.java,v $
* $Revision: 1.1 $
* $Date: 2007/07/02 17:41:11 $
*
* 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.packet.PacketExtension;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.jivesoftware.smackx.jingle.nat.ICECandidate;
import org.jivesoftware.smackx.jingle.nat.TransportCandidate;
import org.jivesoftware.smackx.packet.JingleTransport;
import org.jivesoftware.smackx.packet.JingleTransport.JingleTransportCandidate;
import org.xmlpull.v1.XmlPullParser;
/**
* Provider for a Jingle transport element
*
* @author Alvaro Saurin <alvaro.saurin@gmail.com>
*/
public abstract class JingleTransportProvider implements
PacketExtensionProvider {
/**
* RTP-ICE profile
*/
public static class Ice extends JingleTransportProvider {
/**
* Defauls constructor.
*/
public Ice() {
super();
}
/**
* Obtain the corresponding TransportNegotiator.Ice instance.
*
* @return a new TransportNegotiator.Ice instance
*/
@Override
protected JingleTransport getInstance() {
return new JingleTransport.Ice();
}
/**
* Parse a iq/jingle/transport/candidate element.
*
* @param parser
* the structure to parse
* @return a candidate element
* @throws Exception
*/
@Override
protected JingleTransportCandidate parseCandidate(XmlPullParser parser)
throws Exception {
final ICECandidate mt = new ICECandidate();
final String channel = parser.getAttributeValue("", "channel");
final String generation = parser
.getAttributeValue("", "generation");
final String ip = parser.getAttributeValue("", "ip");
final String name = parser.getAttributeValue("", "name");
final String network = parser.getAttributeValue("", "network");
final String username = parser.getAttributeValue("", "username");
final String password = parser.getAttributeValue("", "password");
final String port = parser.getAttributeValue("", "port");
final String preference = parser
.getAttributeValue("", "preference");
final String proto = parser.getAttributeValue("", "proto");
final String type = parser.getAttributeValue("", "type");
if (channel != null) {
mt.setChannel(new TransportCandidate.Channel(channel));
}
if (generation != null) {
try {
mt.setGeneration(Integer.parseInt(generation));
} catch (final Exception e) {
}
}
if (ip != null) {
mt.setIp(ip);
} else {
return null;
}
if (name != null) {
mt.setName(name);
}
if (network != null) {
try {
mt.setNetwork(Integer.parseInt(network));
} catch (final Exception e) {
}
}
if (username != null) {
mt.setUsername(username);
}
if (password != null) {
mt.setPassword(password);
}
if (port != null) {
try {
mt.setPort(Integer.parseInt(port));
} catch (final Exception e) {
}
}
if (preference != null) {
try {
mt.setPreference(Integer.parseInt(preference));
} catch (final Exception e) {
}
}
if (proto != null) {
mt.setProto(new TransportCandidate.Protocol(proto));
}
if (type != null) {
mt.setType(ICECandidate.Type.valueOf(type));
}
return new JingleTransport.Ice.Candidate(mt);
}
}
/**
* Raw UDP profile
*/
public static class RawUdp extends JingleTransportProvider {
/**
* Defauls constructor.
*/
public RawUdp() {
super();
}
/**
* Obtain the corresponding TransportNegotiator.RawUdp instance.
*
* @return a new TransportNegotiator.RawUdp instance
*/
@Override
protected JingleTransport getInstance() {
return new JingleTransport.RawUdp();
}
/**
* Parse a iq/jingle/transport/candidate element.
*
* @param parser
* the structure to parse
* @return a candidate element
* @throws Exception
*/
@Override
protected JingleTransportCandidate parseCandidate(XmlPullParser parser)
throws Exception {
final TransportCandidate.Fixed mt = new TransportCandidate.Fixed();
final String generation = parser
.getAttributeValue("", "generation");
final String ip = parser.getAttributeValue("", "ip");
final String name = parser.getAttributeValue("", "name");
final String port = parser.getAttributeValue("", "port");
// LOGGER.debug();
if (generation != null) {
try {
mt.setGeneration(Integer.parseInt(generation));
} catch (final Exception e) {
}
}
if (ip != null) {
mt.setIp(ip);
}
if (name != null) {
mt.setName(name);
}
if (port != null) {
try {
mt.setPort(Integer.parseInt(port));
} catch (final Exception e) {
}
}
return new JingleTransport.RawUdp.Candidate(mt);
}
}
/**
* Creates a new provider. ProviderManager requires that every
* PacketExtensionProvider has a public, no-argument constructor
*/
public JingleTransportProvider() {
super();
}
/**
* Obtain the corresponding TransportNegotiator instance.
*
* @return a new TransportNegotiator instance
*/
protected JingleTransport getInstance() {
return new JingleTransport();
}
protected abstract JingleTransportCandidate parseCandidate(
final XmlPullParser parser) throws Exception;
/**
* Parse a iq/jingle/transport element.
*
* @param parser
* the structure to parse
* @return a transport element.
* @throws Exception
*/
@Override
public PacketExtension parseExtension(final XmlPullParser parser)
throws Exception {
boolean done = false;
final JingleTransport trans = getInstance();
while (!done) {
final int eventType = parser.next();
final String name = parser.getName();
if (eventType == XmlPullParser.START_TAG) {
if (name.equals(JingleTransportCandidate.NODENAME)) {
final JingleTransportCandidate jtc = parseCandidate(parser);
if (jtc != null) {
trans.addCandidate(jtc);
}
} else {
throw new Exception("Unknown tag \"" + name
+ "\" in transport element.");
}
} else if (eventType == XmlPullParser.END_TAG) {
if (name.equals(JingleTransport.NODENAME)) {
done = true;
}
}
}
return trans;
}
}