132 lines
5.5 KiB
Java
132 lines
5.5 KiB
Java
/**
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*
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* Copyright 2003-2005 Jive Software.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.jingleold.provider;
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import java.io.IOException;
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import org.jivesoftware.smack.packet.XmlEnvironment;
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import org.jivesoftware.smack.parsing.SmackParsingException;
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import org.jivesoftware.smack.provider.ExtensionElementProvider;
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import org.jivesoftware.smack.provider.IQProvider;
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import org.jivesoftware.smack.util.ParserUtils;
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import org.jivesoftware.smack.xml.XmlPullParser;
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import org.jivesoftware.smack.xml.XmlPullParserException;
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import org.jivesoftware.smackx.jingleold.JingleActionEnum;
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import org.jivesoftware.smackx.jingleold.packet.Jingle;
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import org.jivesoftware.smackx.jingleold.packet.JingleContent;
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import org.jivesoftware.smackx.jingleold.packet.JingleContentInfo;
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import org.jivesoftware.smackx.jingleold.packet.JingleDescription;
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import org.jivesoftware.smackx.jingleold.packet.JingleTransport;
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import org.jxmpp.jid.Jid;
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/**
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* The JingleProvider parses Jingle packets.
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*
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* @author Alvaro Saurin
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*/
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public class JingleProvider extends IQProvider<Jingle> {
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/**
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* Parse a iq/jingle element.
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* @throws XmlPullParserException if an error in the XML parser occurred.
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* @throws IOException if an I/O error occurred.
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* @throws SmackParsingException if the Smack parser (provider) encountered invalid input.
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*/
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@Override
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public Jingle parse(XmlPullParser parser, int intialDepth, XmlEnvironment xmlEnvironment) throws IOException, XmlPullParserException, SmackParsingException {
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Jingle jingle = new Jingle();
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String sid;
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JingleActionEnum action;
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Jid initiator, responder;
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boolean done = false;
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JingleContent currentContent = null;
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// Sub-elements providers
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JingleContentProvider jcp = new JingleContentProvider();
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JingleDescriptionProvider jdpAudio = new JingleDescriptionProvider.Audio();
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JingleTransportProvider jtpRawUdp = new JingleTransportProvider.RawUdp();
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JingleTransportProvider jtpIce = new JingleTransportProvider.Ice();
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ExtensionElementProvider<?> jmipAudio = new JingleContentInfoProvider.Audio();
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XmlPullParser.Event eventType;
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String elementName;
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String namespace;
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// Get some attributes for the <jingle> element
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sid = parser.getAttributeValue("", "sid");
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action = JingleActionEnum.getAction(parser.getAttributeValue("", "action"));
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initiator = ParserUtils.getJidAttribute(parser, "initiator");
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responder = ParserUtils.getJidAttribute(parser, "responder");
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jingle.setSid(sid);
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jingle.setAction(action);
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jingle.setInitiator(initiator);
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jingle.setResponder(responder);
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// Start processing sub-elements
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while (!done) {
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eventType = parser.next();
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if (eventType == XmlPullParser.Event.START_ELEMENT) {
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elementName = parser.getName();
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namespace = parser.getNamespace();
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// Parse some well know subelements, depending on the namespaces
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// and element names...
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if (elementName.equals(JingleContent.NODENAME)) {
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// Add a new <content> element to the jingle
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currentContent = jcp.parse(parser);
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jingle.addContent(currentContent);
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} else if (elementName.equals(JingleDescription.NODENAME) && namespace.equals(JingleDescription.Audio.NAMESPACE)) {
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// Set the <description> element of the <content>
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currentContent.setDescription(jdpAudio.parse(parser));
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} else if (elementName.equals(JingleTransport.NODENAME)) {
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// Add all of the <transport> elements to the <content> of the jingle
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// Parse the possible transport namespaces
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if (namespace.equals(JingleTransport.RawUdp.NAMESPACE)) {
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currentContent.addJingleTransport(jtpRawUdp.parse(parser));
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} else if (namespace.equals(JingleTransport.Ice.NAMESPACE)) {
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currentContent.addJingleTransport(jtpIce.parse(parser));
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} else {
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// TODO: Should be SmackParseException.
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throw new IOException("Unknown transport namespace \"" + namespace + "\" in Jingle packet.");
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}
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} else if (namespace.equals(JingleContentInfo.Audio.NAMESPACE)) {
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jingle.setContentInfo((JingleContentInfo) jmipAudio.parse(parser));
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} else {
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// TODO: Should be SmackParseException.
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throw new IOException("Unknown combination of namespace \"" + namespace + "\" and element name \""
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+ elementName + "\" in Jingle packet.");
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}
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} else if (eventType == XmlPullParser.Event.END_ELEMENT) {
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if (parser.getName().equals(Jingle.NODENAME)) {
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done = true;
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}
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}
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}
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return jingle;
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}
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}
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