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821 lines
No EOL
34 KiB
Java
821 lines
No EOL
34 KiB
Java
/**
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* $RCSfile$
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* $Revision$
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* $Date$
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*
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* Copyright 2003-2004 Jive Software.
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*
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* All rights reserved. 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.smack;
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import org.jivesoftware.smack.packet.*;
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import org.jivesoftware.smack.filter.*;
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import org.jivesoftware.smack.util.StringUtils;
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import java.util.*;
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/**
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* Represents a user's roster, which is the collection of users a person receives
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* presence updates for. Roster items are categorized into groups for easier management.<p>
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*
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* Others users may attempt to subscribe to this user using a subscription request. Three
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* modes are supported for handling these requests: <ul>
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* <li> SUBSCRIPTION_ACCEPT_ALL -- accept all subscription requests.
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* <li> SUBSCRIPTION_REJECT_ALL -- reject all subscription requests.
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* <li> SUBSCRIPTION_MANUAL -- manually process all subscription requests. </ul>
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*
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* @see XMPPConnection#getRoster()
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* @author Matt Tucker
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*/
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public class Roster {
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/**
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* Automatically accept all subscription and unsubscription requests. This is
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* the default mode and is suitable for simple client. More complex client will
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* likely wish to handle subscription requests manually.
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*/
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public static final int SUBSCRIPTION_ACCEPT_ALL = 0;
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/**
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* Automatically reject all subscription requests.
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*/
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public static final int SUBSCRIPTION_REJECT_ALL = 1;
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/**
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* Subscription requests are ignored, which means they must be manually
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* processed by registering a listener for presence packets and then looking
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* for any presence requests that have the type Presence.Type.SUBSCRIBE or
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* Presence.Type.UNSUBSCRIBE.
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*/
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public static final int SUBSCRIPTION_MANUAL = 2;
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/**
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* The default subscription processing mode to use when a Roster is created. By default
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* all subscription requests are automatically accepted.
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*/
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private static int defaultSubscriptionMode = SUBSCRIPTION_ACCEPT_ALL;
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private XMPPConnection connection;
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private Map groups;
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private List entries;
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private List unfiledEntries;
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private List rosterListeners;
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private Map presenceMap;
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// The roster is marked as initialized when at least a single roster packet
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// has been recieved and processed.
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boolean rosterInitialized = false;
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private int subscriptionMode = getDefaultSubscriptionMode();
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/**
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* Returns the default subscription processing mode to use when a new Roster is created. The
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* subscription processing mode dictates what action Smack will take when subscription
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* requests from other users are made. The default subscription mode
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* is {@link #SUBSCRIPTION_ACCEPT_ALL}.
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*
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* @return the default subscription mode to use for new Rosters
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*/
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public static int getDefaultSubscriptionMode() {
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return defaultSubscriptionMode;
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}
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/**
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* Sets the default subscription processing mode to use when a new Roster is created. The
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* subscription processing mode dictates what action Smack will take when subscription
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* requests from other users are made. The default subscription mode
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* is {@link #SUBSCRIPTION_ACCEPT_ALL}.
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*
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* @param subscriptionMode the default subscription mode to use for new Rosters.
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*/
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public static void setDefaultSubscriptionMode(int subscriptionMode) {
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defaultSubscriptionMode = subscriptionMode;
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}
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/**
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* Creates a new roster.
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*
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* @param connection an XMPP connection.
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*/
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Roster(final XMPPConnection connection) {
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this.connection = connection;
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groups = new Hashtable();
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unfiledEntries = new ArrayList();
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entries = new ArrayList();
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rosterListeners = new ArrayList();
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presenceMap = new HashMap();
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// Listen for any roster packets.
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PacketFilter rosterFilter = new PacketTypeFilter(RosterPacket.class);
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connection.addPacketListener(new RosterPacketListener(), rosterFilter);
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// Listen for any presence packets.
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PacketFilter presenceFilter = new PacketTypeFilter(Presence.class);
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connection.addPacketListener(new PresencePacketListener(), presenceFilter);
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}
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/**
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* Returns the subscription processing mode, which dictates what action
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* Smack will take when subscription requests from other users are made.
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* The default subscription mode is {@link #SUBSCRIPTION_ACCEPT_ALL}.<p>
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*
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* If using the manual mode, a PacketListener should be registered that
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* listens for Presence packets that have a type of
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* {@link org.jivesoftware.smack.packet.Presence.Type#SUBSCRIBE}.
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*
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* @return the subscription mode.
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*/
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public int getSubscriptionMode() {
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return subscriptionMode;
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}
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/**
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* Sets the subscription processing mode, which dictates what action
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* Smack will take when subscription requests from other users are made.
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* The default subscription mode is {@link #SUBSCRIPTION_ACCEPT_ALL}.<p>
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*
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* If using the manual mode, a PacketListener should be registered that
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* listens for Presence packets that have a type of
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* {@link org.jivesoftware.smack.packet.Presence.Type#SUBSCRIBE}.
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*
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* @param subscriptionMode the subscription mode.
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*/
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public void setSubscriptionMode(int subscriptionMode) {
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if (subscriptionMode != SUBSCRIPTION_ACCEPT_ALL &&
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subscriptionMode != SUBSCRIPTION_REJECT_ALL &&
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subscriptionMode != SUBSCRIPTION_MANUAL)
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{
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throw new IllegalArgumentException("Invalid mode.");
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}
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this.subscriptionMode = subscriptionMode;
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}
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/**
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* Reloads the entire roster from the server. This is an asynchronous operation,
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* which means the method will return immediately, and the roster will be
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* reloaded at a later point when the server responds to the reload request.
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*/
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public void reload() {
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connection.sendPacket(new RosterPacket());
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}
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/**
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* Adds a listener to this roster. The listener will be fired anytime one or more
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* changes to the roster are pushed from the server.
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*
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* @param rosterListener a roster listener.
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*/
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public void addRosterListener(RosterListener rosterListener) {
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synchronized (rosterListeners) {
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if (!rosterListeners.contains(rosterListener)) {
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rosterListeners.add(rosterListener);
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}
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}
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}
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/**
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* Removes a listener from this roster. The listener will be fired anytime one or more
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* changes to the roster are pushed from the server.
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*
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* @param rosterListener a roster listener.
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*/
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public void removeRosterListener(RosterListener rosterListener) {
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synchronized (rosterListeners) {
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rosterListeners.remove(rosterListener);
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}
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}
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/**
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* Creates a new group.<p>
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*
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* Note: you must add at least one entry to the group for the group to be kept
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* after a logout/login. This is due to the way that XMPP stores group information.
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*
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* @param name the name of the group.
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* @return a new group.
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*/
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public RosterGroup createGroup(String name) {
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synchronized (groups) {
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if (groups.containsKey(name)) {
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throw new IllegalArgumentException("Group with name " + name + " alread exists.");
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}
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RosterGroup group = new RosterGroup(name, connection);
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groups.put(name, group);
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return group;
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}
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}
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/**
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* Creates a new roster entry and presence subscription. The server will asynchronously
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* update the roster with the subscription status.
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*
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* @param user the user. (e.g. johndoe@jabber.org)
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* @param name the nickname of the user.
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* @param groups the list of group names the entry will belong to, or <tt>null</tt> if the
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* the roster entry won't belong to a group.
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*/
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public void createEntry(String user, String name, String [] groups) throws XMPPException {
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// Create and send roster entry creation packet.
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RosterPacket rosterPacket = new RosterPacket();
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rosterPacket.setType(IQ.Type.SET);
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RosterPacket.Item item = new RosterPacket.Item(user, name);
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if (groups != null) {
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for (int i=0; i<groups.length; i++) {
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if (groups[i] != null) {
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item.addGroupName(groups[i]);
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}
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}
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}
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rosterPacket.addRosterItem(item);
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// Wait up to a certain number of seconds for a reply from the server.
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PacketCollector collector = connection.createPacketCollector(
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new PacketIDFilter(rosterPacket.getPacketID()));
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connection.sendPacket(rosterPacket);
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IQ response = (IQ)collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
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collector.cancel();
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if (response == null) {
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throw new XMPPException("No response from the server.");
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}
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// If the server replied with an error, throw an exception.
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else if (response.getType() == IQ.Type.ERROR) {
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throw new XMPPException(response.getError());
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}
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// Create a presence subscription packet and send.
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Presence presencePacket = new Presence(Presence.Type.SUBSCRIBE);
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presencePacket.setTo(user);
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connection.sendPacket(presencePacket);
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}
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/**
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* Removes a roster entry from the roster. The roster entry will also be removed from the
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* unfiled entries or from any roster group where it could belong and will no longer be part
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* of the roster. Note that this is an asynchronous call -- Smack must wait for the server
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* to send an updated subscription status.
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*
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* @param entry a roster entry.
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*/
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public void removeEntry(RosterEntry entry) throws XMPPException {
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// Only remove the entry if it's in the entry list.
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// The actual removal logic takes place in RosterPacketListenerprocess>>Packet(Packet)
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synchronized (entries) {
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if (!entries.contains(entry)) {
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return;
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}
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}
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RosterPacket packet = new RosterPacket();
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packet.setType(IQ.Type.SET);
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RosterPacket.Item item = RosterEntry.toRosterItem(entry);
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// Set the item type as REMOVE so that the server will delete the entry
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item.setItemType(RosterPacket.ItemType.REMOVE);
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packet.addRosterItem(item);
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PacketCollector collector = connection.createPacketCollector(
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new PacketIDFilter(packet.getPacketID()));
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connection.sendPacket(packet);
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IQ response = (IQ)collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
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collector.cancel();
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if (response == null) {
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throw new XMPPException("No response from the server.");
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}
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// If the server replied with an error, throw an exception.
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else if (response.getType() == IQ.Type.ERROR) {
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throw new XMPPException(response.getError());
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}
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else {
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}
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}
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/**
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* Returns a count of the entries in the roster.
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*
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* @return the number of entries in the roster.
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*/
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public int getEntryCount() {
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HashMap entryMap = new HashMap();
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// Loop through all roster groups.
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for (Iterator groups = getGroups(); groups.hasNext(); ) {
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RosterGroup rosterGroup = (RosterGroup) groups.next();
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for (Iterator entries = rosterGroup.getEntries(); entries.hasNext(); ) {
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entryMap.put(entries.next(), "");
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}
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}
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synchronized (unfiledEntries) {
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return entryMap.size() + unfiledEntries.size();
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}
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}
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/**
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* Returns all entries in the roster, including entries that don't belong to
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* any groups.
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*
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* @return all entries in the roster.
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*/
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public Iterator getEntries() {
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ArrayList allEntries = new ArrayList();
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// Loop through all roster groups and add their entries to the answer
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for (Iterator groups = getGroups(); groups.hasNext(); ) {
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RosterGroup rosterGroup = (RosterGroup) groups.next();
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for (Iterator entries = rosterGroup.getEntries(); entries.hasNext(); ) {
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RosterEntry entry = (RosterEntry)entries.next();
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if (!allEntries.contains(entry)) {
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allEntries.add(entry);
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}
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}
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}
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// Add the roster unfiled entries to the answer
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synchronized (unfiledEntries) {
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allEntries.addAll(unfiledEntries);
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}
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return allEntries.iterator();
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}
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/**
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* Returns a count of the unfiled entries in the roster. An unfiled entry is
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* an entry that doesn't belong to any groups.
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*
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* @return the number of unfiled entries in the roster.
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*/
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public int getUnfiledEntryCount() {
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synchronized (unfiledEntries) {
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return unfiledEntries.size();
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}
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}
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/**
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* Returns an Iterator for the unfiled roster entries. An unfiled entry is
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* an entry that doesn't belong to any groups.
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*
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* @return an iterator the unfiled roster entries.
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*/
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public Iterator getUnfiledEntries() {
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synchronized (unfiledEntries) {
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return Collections.unmodifiableList(new ArrayList(unfiledEntries)).iterator();
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}
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}
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/**
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* Returns the roster entry associated with the given XMPP address or
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* <tt>null</tt> if the user is not an entry in the roster.
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*
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* @param user the XMPP address of the user (eg "jsmith@example.com"). The address could be
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* in any valid format (e.g. "domain/resource", "user@domain" or "user@domain/resource").
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* @return the roster entry or <tt>null</tt> if it does not exist.
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*/
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public RosterEntry getEntry(String user) {
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if (user == null) {
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return null;
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}
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String userLowerCase = user.toLowerCase();
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synchronized (entries) {
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for (Iterator i=entries.iterator(); i.hasNext(); ) {
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RosterEntry entry = (RosterEntry)i.next();
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if (entry.getUser().equals(userLowerCase)) {
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return entry;
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}
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}
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}
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return null;
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}
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/**
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* Returns true if the specified XMPP address is an entry in the roster.
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*
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* @param user the XMPP address of the user (eg "jsmith@example.com"). The address could be
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* in any valid format (e.g. "domain/resource", "user@domain" or "user@domain/resource").
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* @return true if the XMPP address is an entry in the roster.
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*/
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public boolean contains(String user) {
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return getEntry(user) != null;
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}
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/**
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* Returns the roster group with the specified name, or <tt>null</tt> if the
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* group doesn't exist.
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*
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* @param name the name of the group.
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* @return the roster group with the specified name.
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*/
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public RosterGroup getGroup(String name) {
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synchronized (groups) {
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return (RosterGroup)groups.get(name);
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}
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}
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/**
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* Returns the number of the groups in the roster.
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*
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* @return the number of groups in the roster.
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*/
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public int getGroupCount() {
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synchronized (groups) {
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return groups.size();
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}
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}
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/**
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* Returns an iterator the for all the roster groups.
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*
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* @return an iterator for all roster groups.
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*/
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public Iterator getGroups() {
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synchronized (groups) {
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List groupsList = Collections.unmodifiableList(new ArrayList(groups.values()));
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return groupsList.iterator();
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}
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}
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/**
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* Returns the presence info for a particular user, or <tt>null</tt> if the user
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* is unavailable (offline) or if no presence information is available, such as
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* when you are not subscribed to the user's presence updates.<p>
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*
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* If the user has several presences (one for each resource) then answer the presence
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* with the highest priority.<p>
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*
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* Note that presence information is received asynchronously. So, just after logging
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* in to the server, presence values for users in the roster might be <tt>null</tt>
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* even if they are actually online. In other words, the value returned by this
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* method should only be treated as a snapshot in time, and may not accurately reflect
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* other user's presence instant by instant. If you need to track presence over time,
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* such as when showing a visual representation of the roster, consider using a
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* {@link RosterListener}.
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*
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* @param user a fully qualified xmpp ID. The address could be in any valid format (e.g.
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* "domain/resource", "user@domain" or "user@domain/resource").
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* @return the user's current presence, or <tt>null</tt> if the user is unavailable
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* or if no presence information is available..
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*/
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public Presence getPresence(String user) {
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String key = getPresenceMapKey(user);
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Map userPresences = (Map) presenceMap.get(key);
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if (userPresences == null) {
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return null;
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}
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else {
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// Find the resource with the highest priority
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// Might be changed to use the resource with the highest availability instead.
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Iterator it = userPresences.keySet().iterator();
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Presence p;
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Presence presence = null;
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while (it.hasNext()) {
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p = (Presence) userPresences.get(it.next());
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if (presence == null) {
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presence = p;
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}
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else {
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if (p.getPriority() > presence.getPriority()) {
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presence = p;
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}
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}
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}
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return presence;
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}
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}
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/**
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* Returns the presence info for a particular user's resource, or <tt>null</tt> if the user
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* is unavailable (offline) or if no presence information is available, such as
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* when you are not subscribed to the user's presence updates.
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*
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* @param userResource a fully qualified xmpp ID including a resource.
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* @return the user's current presence, or <tt>null</tt> if the user is unavailable
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* or if no presence information is available.
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*/
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public Presence getPresenceResource(String userResource) {
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String key = getPresenceMapKey(userResource);
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String resource = StringUtils.parseResource(userResource);
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Map userPresences = (Map)presenceMap.get(key);
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if (userPresences == null) {
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return null;
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}
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else {
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return (Presence) userPresences.get(resource);
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}
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}
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/**
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* Returns an iterator (of Presence objects) for all the user's current presences
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* or <tt>null</tt> if the user is unavailable (offline) or if no presence information
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* is available, such as when you are not subscribed to the user's presence updates.
|
|
*
|
|
* @param user a fully qualified xmpp ID, e.g. jdoe@example.com
|
|
* @return an iterator (of Presence objects) for all the user's current presences,
|
|
* or <tt>null</tt> if the user is unavailable or if no presence information
|
|
* is available.
|
|
*/
|
|
public Iterator getPresences(String user) {
|
|
String key = getPresenceMapKey(user);
|
|
Map userPresences = (Map)presenceMap.get(key);
|
|
if (userPresences == null) {
|
|
return null;
|
|
}
|
|
else {
|
|
synchronized (userPresences) {
|
|
return new HashMap(userPresences).values().iterator();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the key to use in the presenceMap for a fully qualified xmpp ID. The roster
|
|
* can contain any valid address format such us "domain/resource", "user@domain" or
|
|
* "user@domain/resource". If the roster contains an entry associated with the fully qualified
|
|
* xmpp ID then use the fully qualified xmpp ID as the key in presenceMap, otherwise use the
|
|
* bare address. Note: When the key in presenceMap is a fully qualified xmpp ID, the
|
|
* userPresences is useless since it will always contain one entry for the user.
|
|
*
|
|
* @param user the fully qualified xmpp ID, e.g. jdoe@example.com/Work.
|
|
* @return the key to use in the presenceMap for the fully qualified xmpp ID.
|
|
*/
|
|
private String getPresenceMapKey(String user) {
|
|
if (user == null) {
|
|
return null;
|
|
}
|
|
String key = user;
|
|
if (!contains(user)) {
|
|
key = StringUtils.parseBareAddress(user);
|
|
}
|
|
return key.toLowerCase();
|
|
}
|
|
|
|
/**
|
|
* Fires roster changed event to roster listeners indicating that the
|
|
* specified collections of contacts have been added, updated or deleted
|
|
* from the roster.
|
|
*
|
|
* @param addedEntries the collection of address of the added contacts.
|
|
* @param updatedEntries the collection of address of the updated contacts.
|
|
* @param deletedEntries the collection of address of the deleted contacts.
|
|
*/
|
|
private void fireRosterChangedEvent(Collection addedEntries, Collection updatedEntries,
|
|
Collection deletedEntries) {
|
|
RosterListener [] listeners;
|
|
synchronized (rosterListeners) {
|
|
listeners = new RosterListener[rosterListeners.size()];
|
|
rosterListeners.toArray(listeners);
|
|
}
|
|
for (int i=0; i<listeners.length; i++) {
|
|
if (!addedEntries.isEmpty()) {
|
|
listeners[i].entriesAdded(addedEntries);
|
|
}
|
|
if (!updatedEntries.isEmpty()) {
|
|
listeners[i].entriesUpdated(updatedEntries);
|
|
}
|
|
if (!deletedEntries.isEmpty()) {
|
|
listeners[i].entriesDeleted(deletedEntries);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fires roster presence changed event to roster listeners.
|
|
*/
|
|
private void fireRosterPresenceEvent(String user) {
|
|
RosterListener [] listeners;
|
|
synchronized (rosterListeners) {
|
|
listeners = new RosterListener[rosterListeners.size()];
|
|
rosterListeners.toArray(listeners);
|
|
}
|
|
for (int i=0; i<listeners.length; i++) {
|
|
listeners[i].presenceChanged(user);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Listens for all presence packets and processes them.
|
|
*/
|
|
private class PresencePacketListener implements PacketListener {
|
|
public void processPacket(Packet packet) {
|
|
Presence presence = (Presence)packet;
|
|
String from = presence.getFrom();
|
|
String key = getPresenceMapKey(from);
|
|
|
|
// If an "available" packet, add it to the presence map. Each presence map will hold
|
|
// for a particular user a map with the presence packets saved for each resource.
|
|
if (presence.getType() == Presence.Type.AVAILABLE) {
|
|
Map userPresences;
|
|
// Get the user presence map
|
|
if (presenceMap.get(key) == null) {
|
|
userPresences = new HashMap();
|
|
presenceMap.put(key, userPresences);
|
|
}
|
|
else {
|
|
userPresences = (Map)presenceMap.get(key);
|
|
}
|
|
// Add the new presence, using the resources as a key.
|
|
synchronized (userPresences) {
|
|
userPresences.put(StringUtils.parseResource(from), presence);
|
|
}
|
|
// If the user is in the roster, fire an event.
|
|
synchronized (entries) {
|
|
for (Iterator i = entries.iterator(); i.hasNext();) {
|
|
RosterEntry entry = (RosterEntry) i.next();
|
|
if (entry.getUser().equals(key)) {
|
|
fireRosterPresenceEvent(from);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// If an "unavailable" packet, remove any entries in the presence map.
|
|
else if (presence.getType() == Presence.Type.UNAVAILABLE) {
|
|
if (presenceMap.get(key) != null) {
|
|
Map userPresences = (Map) presenceMap.get(key);
|
|
synchronized (userPresences) {
|
|
userPresences.remove(StringUtils.parseResource(from));
|
|
}
|
|
if (userPresences.isEmpty()) {
|
|
presenceMap.remove(key);
|
|
}
|
|
}
|
|
// If the user is in the roster, fire an event.
|
|
synchronized (entries) {
|
|
for (Iterator i=entries.iterator(); i.hasNext(); ) {
|
|
RosterEntry entry = (RosterEntry)i.next();
|
|
if (entry.getUser().equals(key)) {
|
|
fireRosterPresenceEvent(from);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (presence.getType() == Presence.Type.SUBSCRIBE) {
|
|
if (subscriptionMode == SUBSCRIPTION_ACCEPT_ALL) {
|
|
// Accept all subscription requests.
|
|
Presence response = new Presence(Presence.Type.SUBSCRIBED);
|
|
response.setTo(presence.getFrom());
|
|
connection.sendPacket(response);
|
|
}
|
|
else if (subscriptionMode == SUBSCRIPTION_REJECT_ALL) {
|
|
// Reject all subscription requests.
|
|
Presence response = new Presence(Presence.Type.UNSUBSCRIBED);
|
|
response.setTo(presence.getFrom());
|
|
connection.sendPacket(response);
|
|
}
|
|
// Otherwise, in manual mode so ignore.
|
|
}
|
|
else if (presence.getType() == Presence.Type.UNSUBSCRIBE) {
|
|
if (subscriptionMode != SUBSCRIPTION_MANUAL) {
|
|
// Acknowledge and accept unsubscription notification so that the
|
|
// server will stop sending notifications saying that the contact
|
|
// has unsubscribed to our presence.
|
|
Presence response = new Presence(Presence.Type.UNSUBSCRIBED);
|
|
response.setTo(presence.getFrom());
|
|
connection.sendPacket(response);
|
|
}
|
|
// Otherwise, in manual mode so ignore.
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Listens for all roster packets and processes them.
|
|
*/
|
|
private class RosterPacketListener implements PacketListener {
|
|
|
|
public void processPacket(Packet packet) {
|
|
// Keep a registry of the entries that were added, deleted or updated. An event
|
|
// will be fired for each affected entry
|
|
Collection addedEntries = new ArrayList();
|
|
Collection updatedEntries = new ArrayList();
|
|
Collection deletedEntries = new ArrayList();
|
|
|
|
RosterPacket rosterPacket = (RosterPacket)packet;
|
|
for (Iterator i=rosterPacket.getRosterItems(); i.hasNext(); ) {
|
|
RosterPacket.Item item = (RosterPacket.Item)i.next();
|
|
RosterEntry entry = new RosterEntry(item.getUser(), item.getName(),
|
|
item.getItemType(), item.getItemStatus(), connection);
|
|
|
|
// If the packet is of the type REMOVE then remove the entry
|
|
if (RosterPacket.ItemType.REMOVE.equals(item.getItemType())) {
|
|
// Remove the entry from the entry list.
|
|
if (entries.contains(entry)) {
|
|
entries.remove(entry);
|
|
}
|
|
// Remove the entry from the unfiled entry list.
|
|
synchronized (unfiledEntries) {
|
|
if (unfiledEntries.contains(entry)) {
|
|
unfiledEntries.remove(entry);
|
|
}
|
|
}
|
|
// Removing the user from the roster, so remove any presence information
|
|
// about them.
|
|
String key = StringUtils.parseName(item.getUser()) + "@" +
|
|
StringUtils.parseServer(item.getUser());
|
|
presenceMap.remove(key);
|
|
// Keep note that an entry has been removed
|
|
deletedEntries.add(item.getUser());
|
|
}
|
|
else {
|
|
// Make sure the entry is in the entry list.
|
|
if (!entries.contains(entry)) {
|
|
entries.add(entry);
|
|
// Keep note that an entry has been added
|
|
addedEntries.add(item.getUser());
|
|
}
|
|
else {
|
|
// If the entry was in then list then update its state with the new values
|
|
RosterEntry existingEntry =
|
|
(RosterEntry) entries.get(entries.indexOf(entry));
|
|
existingEntry
|
|
.updateState(entry.getName(), entry.getType(), entry.getStatus());
|
|
// Keep note that an entry has been updated
|
|
updatedEntries.add(item.getUser());
|
|
}
|
|
// If the roster entry belongs to any groups, remove it from the
|
|
// list of unfiled entries.
|
|
if (item.getGroupNames().hasNext()) {
|
|
synchronized (unfiledEntries) {
|
|
unfiledEntries.remove(entry);
|
|
}
|
|
}
|
|
// Otherwise add it to the list of unfiled entries.
|
|
else {
|
|
synchronized (unfiledEntries) {
|
|
if (!unfiledEntries.contains(entry)) {
|
|
unfiledEntries.add(entry);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Find the list of groups that the user currently belongs to.
|
|
List currentGroupNames = new ArrayList();
|
|
for (Iterator j = entry.getGroups(); j.hasNext(); ) {
|
|
RosterGroup group = (RosterGroup)j.next();
|
|
currentGroupNames.add(group.getName());
|
|
}
|
|
|
|
// If the packet is not of the type REMOVE then add the entry to the groups
|
|
if (!RosterPacket.ItemType.REMOVE.equals(item.getItemType())) {
|
|
// Create the new list of groups the user belongs to.
|
|
List newGroupNames = new ArrayList();
|
|
for (Iterator k = item.getGroupNames(); k.hasNext(); ) {
|
|
String groupName = (String)k.next();
|
|
// Add the group name to the list.
|
|
newGroupNames.add(groupName);
|
|
|
|
// Add the entry to the group.
|
|
RosterGroup group = getGroup(groupName);
|
|
if (group == null) {
|
|
group = createGroup(groupName);
|
|
groups.put(groupName, group);
|
|
}
|
|
// Add the entry.
|
|
group.addEntryLocal(entry);
|
|
}
|
|
|
|
// We have the list of old and new group names. We now need to
|
|
// remove the entry from the all the groups it may no longer belong
|
|
// to. We do this by subracting the new group set from the old.
|
|
for (int m=0; m<newGroupNames.size(); m++) {
|
|
currentGroupNames.remove(newGroupNames.get(m));
|
|
}
|
|
}
|
|
|
|
// Loop through any groups that remain and remove the entries.
|
|
// This is neccessary for the case of remote entry removals.
|
|
for (int n=0; n<currentGroupNames.size(); n++) {
|
|
String groupName = (String)currentGroupNames.get(n);
|
|
RosterGroup group = getGroup(groupName);
|
|
group.removeEntryLocal(entry);
|
|
if (group.getEntryCount() == 0) {
|
|
synchronized (groups) {
|
|
groups.remove(groupName);
|
|
}
|
|
}
|
|
}
|
|
// Remove all the groups with no entries. We have to do this because
|
|
// RosterGroup.removeEntry removes the entry immediately (locally) and the
|
|
// group could remain empty.
|
|
// TODO Check the performance/logic for rosters with large number of groups
|
|
for (Iterator it = getGroups(); it.hasNext();) {
|
|
RosterGroup group = (RosterGroup)it.next();
|
|
if (group.getEntryCount() == 0) {
|
|
synchronized (groups) {
|
|
groups.remove(group.getName());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Mark the roster as initialized.
|
|
synchronized (Roster.this) {
|
|
rosterInitialized = true;
|
|
Roster.this.notifyAll();
|
|
}
|
|
|
|
// Fire event for roster listeners.
|
|
fireRosterChangedEvent(addedEntries, updatedEntries, deletedEntries);
|
|
}
|
|
}
|
|
} |