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https://github.com/vanitasvitae/Smack.git
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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@13325 b35dd754-fafc-0310-a699-88a17e54d16e
187 lines
6.5 KiB
Java
187 lines
6.5 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 2003-2007 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.smackx;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import org.jivesoftware.smack.PacketListener;
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import org.jivesoftware.smack.Roster;
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import org.jivesoftware.smack.RosterEntry;
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import org.jivesoftware.smack.RosterGroup;
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import org.jivesoftware.smack.Connection;
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import org.jivesoftware.smack.filter.PacketExtensionFilter;
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import org.jivesoftware.smack.filter.PacketFilter;
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import org.jivesoftware.smack.packet.Message;
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import org.jivesoftware.smack.packet.Packet;
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import org.jivesoftware.smackx.packet.RosterExchange;
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/**
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*
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* Manages Roster exchanges. A RosterExchangeManager provides a high level access to send
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* rosters, roster groups and roster entries to XMPP clients. It also provides an easy way
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* to hook up custom logic when entries are received from another XMPP client through
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* RosterExchangeListeners.
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*
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* @author Gaston Dombiak
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*/
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public class RosterExchangeManager {
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private List<RosterExchangeListener> rosterExchangeListeners = new ArrayList<RosterExchangeListener>();
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private Connection con;
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private PacketFilter packetFilter = new PacketExtensionFilter("x", "jabber:x:roster");
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private PacketListener packetListener;
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/**
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* Creates a new roster exchange manager.
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*
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* @param con a Connection which is used to send and receive messages.
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*/
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public RosterExchangeManager(Connection con) {
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this.con = con;
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init();
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}
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/**
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* Adds a listener to roster exchanges. The listener will be fired anytime roster entries
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* are received from remote XMPP clients.
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*
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* @param rosterExchangeListener a roster exchange listener.
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*/
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public void addRosterListener(RosterExchangeListener rosterExchangeListener) {
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synchronized (rosterExchangeListeners) {
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if (!rosterExchangeListeners.contains(rosterExchangeListener)) {
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rosterExchangeListeners.add(rosterExchangeListener);
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}
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}
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}
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/**
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* Removes a listener from roster exchanges. The listener will be fired anytime roster
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* entries are received from remote XMPP clients.
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*
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* @param rosterExchangeListener a roster exchange listener..
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*/
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public void removeRosterListener(RosterExchangeListener rosterExchangeListener) {
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synchronized (rosterExchangeListeners) {
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rosterExchangeListeners.remove(rosterExchangeListener);
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}
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}
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/**
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* Sends a roster to userID. All the entries of the roster will be sent to the
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* target user.
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*
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* @param roster the roster to send
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* @param targetUserID the user that will receive the roster entries
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*/
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public void send(Roster roster, String targetUserID) {
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// Create a new message to send the roster
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Message msg = new Message(targetUserID);
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// Create a RosterExchange Package and add it to the message
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RosterExchange rosterExchange = new RosterExchange(roster);
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msg.addExtension(rosterExchange);
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// Send the message that contains the roster
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con.sendPacket(msg);
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}
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/**
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* Sends a roster entry to userID.
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*
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* @param rosterEntry the roster entry to send
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* @param targetUserID the user that will receive the roster entries
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*/
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public void send(RosterEntry rosterEntry, String targetUserID) {
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// Create a new message to send the roster
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Message msg = new Message(targetUserID);
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// Create a RosterExchange Package and add it to the message
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RosterExchange rosterExchange = new RosterExchange();
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rosterExchange.addRosterEntry(rosterEntry);
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msg.addExtension(rosterExchange);
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// Send the message that contains the roster
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con.sendPacket(msg);
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}
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/**
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* Sends a roster group to userID. All the entries of the group will be sent to the
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* target user.
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*
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* @param rosterGroup the roster group to send
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* @param targetUserID the user that will receive the roster entries
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*/
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public void send(RosterGroup rosterGroup, String targetUserID) {
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// Create a new message to send the roster
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Message msg = new Message(targetUserID);
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// Create a RosterExchange Package and add it to the message
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RosterExchange rosterExchange = new RosterExchange();
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for (RosterEntry entry : rosterGroup.getEntries()) {
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rosterExchange.addRosterEntry(entry);
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}
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msg.addExtension(rosterExchange);
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// Send the message that contains the roster
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con.sendPacket(msg);
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}
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/**
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* Fires roster exchange listeners.
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*/
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private void fireRosterExchangeListeners(String from, Iterator<RemoteRosterEntry> remoteRosterEntries) {
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RosterExchangeListener[] listeners = null;
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synchronized (rosterExchangeListeners) {
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listeners = new RosterExchangeListener[rosterExchangeListeners.size()];
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rosterExchangeListeners.toArray(listeners);
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}
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for (int i = 0; i < listeners.length; i++) {
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listeners[i].entriesReceived(from, remoteRosterEntries);
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}
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}
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private void init() {
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// Listens for all roster exchange packets and fire the roster exchange listeners.
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packetListener = new PacketListener() {
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public void processPacket(Packet packet) {
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Message message = (Message) packet;
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RosterExchange rosterExchange =
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(RosterExchange) message.getExtension("x", "jabber:x:roster");
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// Fire event for roster exchange listeners
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fireRosterExchangeListeners(message.getFrom(), rosterExchange.getRosterEntries());
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};
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};
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con.addPacketListener(packetListener, packetFilter);
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}
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public void destroy() {
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if (con != null)
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con.removePacketListener(packetListener);
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}
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protected void finalize() throws Throwable {
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destroy();
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super.finalize();
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}
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} |