mirror of
https://github.com/vanitasvitae/Smack.git
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228 lines
9.3 KiB
Java
228 lines
9.3 KiB
Java
/**
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*
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* Copyright 2017-2022 Florian Schmaus
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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.jingle.provider;
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import java.io.IOException;
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import java.util.logging.Logger;
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import org.jivesoftware.smack.packet.IqData;
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import org.jivesoftware.smack.packet.StandardExtensionElement;
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import org.jivesoftware.smack.packet.XmlElement;
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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.parsing.StandardExtensionElementProvider;
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import org.jivesoftware.smack.provider.IqProvider;
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import org.jivesoftware.smack.util.PacketParserUtils;
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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.jingle.element.Jingle;
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import org.jivesoftware.smackx.jingle.element.JingleAction;
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import org.jivesoftware.smackx.jingle.element.JingleContent;
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import org.jivesoftware.smackx.jingle.element.JingleContentDescription;
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import org.jivesoftware.smackx.jingle.element.JingleContentTransport;
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import org.jivesoftware.smackx.jingle.element.JingleReason;
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import org.jivesoftware.smackx.jingle.element.JingleReason.Reason;
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import org.jivesoftware.smackx.jingle.element.UnknownJingleContentDescription;
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import org.jivesoftware.smackx.jingle.element.UnknownJingleContentTransport;
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import org.jxmpp.jid.FullJid;
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public class JingleProvider extends IqProvider<Jingle> {
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private static final Logger LOGGER = Logger.getLogger(JingleProvider.class.getName());
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@Override
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public Jingle parse(XmlPullParser parser, int initialDepth, IqData iqData, XmlEnvironment xmlEnvironment) throws XmlPullParserException, IOException, SmackParsingException {
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Jingle.Builder builder = Jingle.builder(iqData);
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String actionString = parser.getAttributeValue("", Jingle.ACTION_ATTRIBUTE_NAME);
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if (actionString != null) {
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JingleAction action = JingleAction.fromString(actionString);
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builder.setAction(action);
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}
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FullJid initiator = ParserUtils.getFullJidAttribute(parser, Jingle.INITIATOR_ATTRIBUTE_NAME);
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builder.setInitiator(initiator);
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FullJid responder = ParserUtils.getFullJidAttribute(parser, Jingle.RESPONDER_ATTRIBUTE_NAME);
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builder.setResponder(responder);
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String sessionId = parser.getAttributeValue("", Jingle.SESSION_ID_ATTRIBUTE_NAME);
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builder.setSessionId(sessionId);
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outerloop: while (true) {
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XmlPullParser.Event eventType = parser.next();
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switch (eventType) {
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case START_ELEMENT:
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String tagName = parser.getName();
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switch (tagName) {
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case JingleContent.ELEMENT:
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JingleContent content = parseJingleContent(parser, parser.getDepth());
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builder.addJingleContent(content);
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break;
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case JingleReason.ELEMENT:
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JingleReason reason = parseJingleReason(parser);
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builder.setReason(reason);
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break;
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default:
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LOGGER.severe("Unknown Jingle element: " + tagName);
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break;
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}
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break;
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case END_ELEMENT:
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if (parser.getDepth() == initialDepth) {
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break outerloop;
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}
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break;
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default:
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// Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
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break;
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}
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}
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return builder.build();
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}
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public static JingleContent parseJingleContent(XmlPullParser parser, final int initialDepth)
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throws XmlPullParserException, IOException, SmackParsingException {
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JingleContent.Builder builder = JingleContent.getBuilder();
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String creatorString = parser.getAttributeValue("", JingleContent.CREATOR_ATTRIBUTE_NAME);
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JingleContent.Creator creator = JingleContent.Creator.valueOf(creatorString);
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builder.setCreator(creator);
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String disposition = parser.getAttributeValue("", JingleContent.DISPOSITION_ATTRIBUTE_NAME);
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builder.setDisposition(disposition);
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String name = parser.getAttributeValue("", JingleContent.NAME_ATTRIBUTE_NAME);
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builder.setName(name);
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String sendersString = parser.getAttributeValue("", JingleContent.SENDERS_ATTRIBUTE_NAME);
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if (sendersString != null) {
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JingleContent.Senders senders = JingleContent.Senders.valueOf(sendersString);
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builder.setSenders(senders);
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}
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outerloop: while (true) {
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XmlPullParser.Event eventType = parser.next();
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switch (eventType) {
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case START_ELEMENT:
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String tagName = parser.getName();
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String namespace = parser.getNamespace();
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switch (tagName) {
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case JingleContentDescription.ELEMENT: {
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JingleContentDescription description;
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JingleContentDescriptionProvider<?> provider = JingleContentProviderManager.getJingleContentDescriptionProvider(namespace);
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if (provider == null) {
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StandardExtensionElement standardExtensionElement = StandardExtensionElementProvider.INSTANCE.parse(parser);
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description = new UnknownJingleContentDescription(standardExtensionElement);
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}
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else {
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description = provider.parse(parser);
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}
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builder.setDescription(description);
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break;
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}
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case JingleContentTransport.ELEMENT: {
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JingleContentTransport transport;
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JingleContentTransportProvider<?> provider = JingleContentProviderManager.getJingleContentTransportProvider(namespace);
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if (provider == null) {
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StandardExtensionElement standardExtensionElement = StandardExtensionElementProvider.INSTANCE.parse(parser);
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transport = new UnknownJingleContentTransport(standardExtensionElement);
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}
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else {
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transport = provider.parse(parser);
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}
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builder.setTransport(transport);
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break;
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}
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default:
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LOGGER.severe("Unknown Jingle content element: " + tagName);
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break;
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}
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break;
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case END_ELEMENT:
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if (parser.getDepth() == initialDepth) {
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break outerloop;
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}
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break;
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default:
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// Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
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break;
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}
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}
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return builder.build();
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}
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public static JingleReason parseJingleReason(XmlPullParser parser)
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throws XmlPullParserException, IOException, SmackParsingException {
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ParserUtils.assertAtStartTag(parser);
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final int initialDepth = parser.getDepth();
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final String jingleNamespace = parser.getNamespace();
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JingleReason.Reason reason = null;
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XmlElement element = null;
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String text = null;
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// 'sid' is only set if the reason is 'alternative-session'.
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String sid = null;
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outerloop: while (true) {
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XmlPullParser.TagEvent event = parser.nextTag();
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switch (event) {
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case START_ELEMENT:
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String elementName = parser.getName();
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String namespace = parser.getNamespace();
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if (namespace.equals(jingleNamespace)) {
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switch (elementName) {
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case "text":
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text = parser.nextText();
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break;
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case "alternative-session":
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parser.next();
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sid = parser.nextText();
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break;
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default:
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reason = Reason.fromString(elementName);
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break;
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}
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} else {
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element = PacketParserUtils.parseExtensionElement(elementName, namespace, parser, null);
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}
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break;
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case END_ELEMENT:
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if (parser.getDepth() == initialDepth) {
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break outerloop;
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}
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break;
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}
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}
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JingleReason res;
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if (sid != null) {
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res = new JingleReason.AlternativeSession(sid, text, element);
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} else {
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res = new JingleReason(reason, text, element);
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}
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return res;
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}
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}
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