001/**
002 *
003 * Copyright © 2014-2017 Florian Schmaus
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smack.sm.provider;
018
019import java.io.IOException;
020import java.util.ArrayList;
021import java.util.List;
022
023import org.jivesoftware.smack.packet.AbstractTextElement;
024import org.jivesoftware.smack.packet.StanzaErrorTextElement;
025import org.jivesoftware.smack.packet.XMPPError;
026import org.jivesoftware.smack.sm.packet.StreamManagement.AckAnswer;
027import org.jivesoftware.smack.sm.packet.StreamManagement.AckRequest;
028import org.jivesoftware.smack.sm.packet.StreamManagement.Enabled;
029import org.jivesoftware.smack.sm.packet.StreamManagement.Failed;
030import org.jivesoftware.smack.sm.packet.StreamManagement.Resumed;
031import org.jivesoftware.smack.util.ParserUtils;
032
033import org.xmlpull.v1.XmlPullParser;
034import org.xmlpull.v1.XmlPullParserException;
035
036public class ParseStreamManagement {
037
038    public static Enabled enabled(XmlPullParser parser) throws XmlPullParserException, IOException {
039        ParserUtils.assertAtStartTag(parser);
040        boolean resume = ParserUtils.getBooleanAttribute(parser, "resume", false);
041        String id = parser.getAttributeValue("", "id");
042        String location = parser.getAttributeValue("", "location");
043        int max = ParserUtils.getIntegerAttribute(parser, "max", -1);
044        parser.next();
045        ParserUtils.assertAtEndTag(parser);
046        return new Enabled(id, resume, location, max);
047    }
048
049    public static Failed failed(XmlPullParser parser) throws XmlPullParserException, IOException {
050        ParserUtils.assertAtStartTag(parser);
051        String name;
052        XMPPError.Condition condition = null;
053        List<StanzaErrorTextElement> textElements = new ArrayList<>(4);
054        outerloop:
055        while (true) {
056            int event = parser.next();
057            switch (event) {
058            case XmlPullParser.START_TAG:
059                name = parser.getName();
060                String namespace = parser.getNamespace();
061                if (XMPPError.NAMESPACE.equals(namespace)) {
062                    if (name.equals(AbstractTextElement.ELEMENT)) {
063                        String lang = ParserUtils.getXmlLang(parser);
064                        String text = parser.nextText();
065                        StanzaErrorTextElement stanzaErrorTextElement = new StanzaErrorTextElement(text, lang);
066                        textElements.add(stanzaErrorTextElement);
067                    } else {
068                        condition = XMPPError.Condition.fromString(name);
069                    }
070                }
071                break;
072            case XmlPullParser.END_TAG:
073                name = parser.getName();
074                if (Failed.ELEMENT.equals(name)) {
075                    break outerloop;
076                }
077                break;
078            }
079        }
080        ParserUtils.assertAtEndTag(parser);
081        return new Failed(condition, textElements);
082    }
083
084    public static Resumed resumed(XmlPullParser parser) throws XmlPullParserException, IOException {
085        ParserUtils.assertAtStartTag(parser);
086        long h = ParserUtils.getLongAttribute(parser, "h");
087        String previd = parser.getAttributeValue("", "previd");
088        parser.next();
089        ParserUtils.assertAtEndTag(parser);
090        return new Resumed(h, previd);
091    }
092
093    public static AckAnswer ackAnswer(XmlPullParser parser) throws XmlPullParserException, IOException {
094        ParserUtils.assertAtStartTag(parser);
095        long h = ParserUtils.getLongAttribute(parser, "h");
096        parser.next();
097        ParserUtils.assertAtEndTag(parser);
098        return new AckAnswer(h);
099    }
100
101    public static AckRequest ackRequest(XmlPullParser parser) throws XmlPullParserException, IOException {
102        ParserUtils.assertAtStartTag(parser);
103        parser.next();
104        ParserUtils.assertAtEndTag(parser);
105        return AckRequest.INSTANCE;
106    }
107}