001/*
002 *
003 * Copyright the original author or authors
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.pubsub.provider;
018
019import java.io.IOException;
020
021import org.jivesoftware.smack.packet.XmlEnvironment;
022import org.jivesoftware.smack.provider.ExtensionElementProvider;
023import org.jivesoftware.smack.util.ParserUtils;
024import org.jivesoftware.smack.xml.XmlPullParser;
025
026import org.jivesoftware.smackx.pubsub.Affiliation;
027import org.jivesoftware.smackx.pubsub.Affiliation.AffiliationNamespace;
028
029import org.jxmpp.JxmppContext;
030import org.jxmpp.jid.BareJid;
031
032/**
033 * Parses the affiliation element out of the reply stanza from the server
034 * as specified in the <a href="http://xmpp.org/extensions/xep-0060.html#schemas-pubsub">affiliation schema</a>.
035 *
036 * @author Robin Collier
037 */
038public class AffiliationProvider extends ExtensionElementProvider<Affiliation> {
039
040    @Override
041    public Affiliation parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment, JxmppContext jxmppContext) throws IOException {
042        String node = parser.getAttributeValue(null, "node");
043        BareJid jid = ParserUtils.getBareJidAttribute(parser, jxmppContext);
044        String namespaceString = parser.getNamespace();
045        AffiliationNamespace namespace = AffiliationNamespace.fromXmlns(namespaceString);
046
047        String affiliationString = parser.getAttributeValue(null, "affiliation");
048        Affiliation.Type affiliationType = null;
049        if (affiliationString != null) {
050            affiliationType = Affiliation.Type.valueOf(affiliationString);
051        }
052        Affiliation affiliation;
053        if (node != null && jid == null) {
054            // affiliationType may be empty
055            affiliation = new Affiliation(node, affiliationType, namespace);
056        }
057        else if (node == null && jid != null) {
058            affiliation = new Affiliation(jid, affiliationType, namespace);
059        }
060        else {
061            // TODO: Should be SmackParsingException.
062            throw new IOException("Invalid affililation. Either one of 'node' or 'jid' must be set"
063                    + ". Node: " + node
064                    + ". Jid: " + jid
065                    + '.');
066        }
067        return affiliation;
068    }
069
070}