137 lines
4.3 KiB
Java
137 lines
4.3 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.SmackException;
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import org.jivesoftware.smack.provider.ExtensionElementProvider;
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import org.jivesoftware.smackx.jingleold.media.PayloadType;
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import org.jivesoftware.smackx.jingleold.packet.JingleContentDescription;
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import org.jivesoftware.smackx.jingleold.packet.JingleContentDescription.JinglePayloadType;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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/**
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* Parser for a Jingle description.
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*
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* @author Alvaro Saurin
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*/
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public abstract class JingleContentDescriptionProvider extends ExtensionElementProvider<JingleContentDescription> {
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/**
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* Parse a iq/jingle/description/payload-type element.
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*
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* @param parser the input to parse
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* @return a payload type element
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*/
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protected JinglePayloadType parsePayload(final XmlPullParser parser) {
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int ptId = 0;
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String ptName;
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int ptChannels = 0;
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try {
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ptId = Integer.parseInt(parser.getAttributeValue("", "id"));
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} catch (Exception e) {
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}
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ptName = parser.getAttributeValue("", "name");
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try {
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ptChannels = Integer.parseInt(parser.getAttributeValue("", "channels"));
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} catch (Exception e) {
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}
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return new JinglePayloadType(new PayloadType(ptId, ptName, ptChannels));
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}
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/**
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* Parse a iq/jingle/description element.
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*
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* @param parser the input to parse
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* @return a description element
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* @throws IOException
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* @throws XmlPullParserException
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* @throws SmackException
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*/
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@Override
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public JingleContentDescription parse(XmlPullParser parser,
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int initialDepth) throws XmlPullParserException,
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IOException, SmackException {
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boolean done = false;
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JingleContentDescription desc = getInstance();
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while (!done) {
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int eventType = parser.next();
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String name = parser.getName();
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if (eventType == XmlPullParser.START_TAG) {
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if (name.equals(JingleContentDescription.JinglePayloadType.NODENAME)) {
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desc.addJinglePayloadType(parsePayload(parser));
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} else {
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throw new SmackException("Unknow element \"" + name + "\" in content.");
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}
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} else if (eventType == XmlPullParser.END_TAG) {
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if (name.equals(JingleContentDescription.NODENAME)) {
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done = true;
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}
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}
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}
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return desc;
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}
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/**
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* Return a new instance of this class. Subclasses must overwrite this
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* method.
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*/
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protected abstract JingleContentDescription getInstance();
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/**
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* Jingle audio.
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*/
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public static class Audio extends JingleContentDescriptionProvider {
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/**
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* Parse an audio payload type.
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*/
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@Override
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public JinglePayloadType parsePayload(final XmlPullParser parser) {
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JinglePayloadType pte = super.parsePayload(parser);
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PayloadType.Audio pt = new PayloadType.Audio(pte.getPayloadType());
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int ptClockRate = 0;
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try {
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ptClockRate = Integer.parseInt(parser.getAttributeValue("", "clockrate"));
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} catch (Exception e) {
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}
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pt.setClockRate(ptClockRate);
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return new JinglePayloadType.Audio(pt);
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}
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/**
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* Get a new instance of this object.
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*/
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@Override
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protected JingleContentDescription getInstance() {
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return new JingleContentDescription.Audio();
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}
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}
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}
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