001/*
002 *
003 * Copyright 2003-2007 Jive Software.
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.smackx.iqregister.provider;
018
019import java.io.IOException;
020import java.util.ArrayList;
021import java.util.HashMap;
022import java.util.List;
023import java.util.Map;
024
025import org.jivesoftware.smack.packet.IQ;
026import org.jivesoftware.smack.packet.IqData;
027import org.jivesoftware.smack.packet.XmlElement;
028import org.jivesoftware.smack.packet.XmlEnvironment;
029import org.jivesoftware.smack.parsing.SmackParsingException;
030import org.jivesoftware.smack.provider.IqProvider;
031import org.jivesoftware.smack.util.PacketParserUtils;
032import org.jivesoftware.smack.xml.XmlPullParser;
033import org.jivesoftware.smack.xml.XmlPullParserException;
034
035import org.jivesoftware.smackx.iqregister.packet.Registration;
036
037import org.jxmpp.JxmppContext;
038
039public class RegistrationProvider extends IqProvider<Registration> {
040
041    @Override
042    public Registration parse(XmlPullParser parser, int initialDepth, IqData iqData, XmlEnvironment xmlEnvironment, JxmppContext jxmppContext) throws XmlPullParserException, IOException, SmackParsingException {
043        String instruction = null;
044        Map<String, String> fields = new HashMap<>();
045        List<XmlElement> packetExtensions = new ArrayList<>();
046        outerloop:
047        while (true) {
048            XmlPullParser.Event eventType = parser.next();
049            if (eventType == XmlPullParser.Event.START_ELEMENT) {
050                // Any element that's in the jabber:iq:register namespace,
051                // attempt to parse it if it's in the form <name>value</name>.
052                if (parser.getNamespace().equals(Registration.NAMESPACE)) {
053                    String name = parser.getName();
054                    String value = "";
055
056                    if (parser.next() == XmlPullParser.Event.TEXT_CHARACTERS) {
057                        value = parser.getText();
058                    }
059                    // Ignore instructions, but anything else should be added to the map.
060                    if (!name.equals("instructions")) {
061                        fields.put(name, value);
062                    }
063                    else {
064                        instruction = value;
065                    }
066                }
067                // Otherwise, it must be a packet extension.
068                else {
069                    PacketParserUtils.addExtensionElement(packetExtensions, parser, xmlEnvironment, jxmppContext);
070                }
071            }
072            else if (eventType == XmlPullParser.Event.END_ELEMENT) {
073                if (parser.getName().equals(IQ.QUERY_ELEMENT)) {
074                    break outerloop;
075                }
076            }
077        }
078        Registration registration = new Registration(instruction, fields);
079        registration.addExtensions(packetExtensions);
080        return registration;
081    }
082
083}