| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.vysper.xmpp.modules.roster; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.vysper.xmpp.addressing.Entity; |
| import org.apache.vysper.xmpp.protocol.NamespaceURIs; |
| import org.apache.vysper.xmpp.stanza.IQStanzaType; |
| import org.apache.vysper.xmpp.stanza.Stanza; |
| import org.apache.vysper.xmpp.stanza.StanzaBuilder; |
| |
| /** |
| * factory methods for roster related stanzas |
| * |
| * @author The Apache MINA Project (dev@mina.apache.org) |
| */ |
| public class RosterStanzaUtils { |
| |
| /** |
| * creates IQ stanza containing the given roster items. |
| * the server returns this stanza when the client requests or changes the roster |
| */ |
| public static StanzaBuilder createRosterItemsIQ(Entity to, String id, IQStanzaType type, |
| Iterable<RosterItem> rosterItems) { |
| StanzaBuilder stanzaBuilder = StanzaBuilder.createIQStanza(null, to, type, id).startInnerElement("query", |
| NamespaceURIs.JABBER_IQ_ROSTER); |
| |
| for (RosterItem rosterItem : rosterItems) { |
| createRosterItem(stanzaBuilder, rosterItem); |
| } |
| |
| stanzaBuilder.endInnerElement(); |
| |
| return stanzaBuilder; |
| } |
| |
| /** |
| * create IQ stanza for pushing a roster item update to the client |
| */ |
| public static Stanza createRosterItemPushIQ(Entity to, String id, RosterItem rosterItem) { |
| return createRosterItemIQ(to, id, IQStanzaType.SET, rosterItem); |
| } |
| |
| /** |
| * general purpose factory method to create a roster IQ stanza for sending roster item information to the client |
| */ |
| public static Stanza createRosterItemIQ(Entity to, String id, IQStanzaType iqStanzaType, RosterItem rosterItem) { |
| List<RosterItem> itemList = new ArrayList<RosterItem>(); |
| itemList.add(rosterItem); |
| return createRosterItemsIQ(to, id, iqStanzaType, itemList).build(); |
| } |
| |
| /** |
| * adds the given roster item to the roster stanza in creation |
| * @param stanzaBuilder represents the stanza in creation |
| * @param rosterItem the added roster item |
| */ |
| public static void createRosterItem(StanzaBuilder stanzaBuilder, RosterItem rosterItem) { |
| stanzaBuilder.startInnerElement("item", NamespaceURIs.JABBER_IQ_ROSTER).addAttribute("jid", |
| rosterItem.getJid().getFullQualifiedName()); |
| if (rosterItem.getName() != null) { |
| stanzaBuilder.addAttribute("name", rosterItem.getName()); |
| } |
| if (rosterItem.getSubscriptionType() != null) { |
| stanzaBuilder.addAttribute("subscription", rosterItem.getSubscriptionType().value()); |
| } |
| if (rosterItem.getAskSubscriptionType() != AskSubscriptionType.NOT_SET) { |
| stanzaBuilder.addAttribute("ask", rosterItem.getAskSubscriptionType().value()); |
| } |
| List<RosterGroup> groupList = rosterItem.getGroups(); |
| if (groupList != null) { |
| for (RosterGroup rosterGroup : groupList) { |
| stanzaBuilder.startInnerElement("group", NamespaceURIs.JABBER_IQ_ROSTER).addText(rosterGroup.getName()) |
| .endInnerElement(); |
| } |
| } |
| stanzaBuilder.endInnerElement(); |
| } |
| |
| } |