| /** |
| * $RCSfile: PEPManager.java,v $ |
| * $Revision: 1.4 $ |
| * $Date: 2007/11/06 21:43:40 $ |
| * |
| * Copyright 2003-2007 Jive Software. |
| * |
| * All rights reserved. Licensed 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.jivesoftware.smackx; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.jivesoftware.smack.PacketListener; |
| import org.jivesoftware.smack.Connection; |
| import org.jivesoftware.smack.filter.PacketExtensionFilter; |
| import org.jivesoftware.smack.filter.PacketFilter; |
| import org.jivesoftware.smack.packet.Message; |
| import org.jivesoftware.smack.packet.Packet; |
| import org.jivesoftware.smack.packet.IQ.Type; |
| import org.jivesoftware.smackx.packet.PEPEvent; |
| import org.jivesoftware.smackx.packet.PEPItem; |
| import org.jivesoftware.smackx.packet.PEPPubSub; |
| |
| /** |
| * |
| * Manages Personal Event Publishing (XEP-163). A PEPManager provides a high level access to |
| * pubsub personal events. It also provides an easy way |
| * to hook up custom logic when events are received from another XMPP client through PEPListeners. |
| * |
| * Use example: |
| * |
| * <pre> |
| * PEPManager pepManager = new PEPManager(smackConnection); |
| * pepManager.addPEPListener(new PEPListener() { |
| * public void eventReceived(String inFrom, PEPEvent inEvent) { |
| * LOGGER.debug("Event received: " + inEvent); |
| * } |
| * }); |
| * |
| * PEPProvider pepProvider = new PEPProvider(); |
| * pepProvider.registerPEPParserExtension("http://jabber.org/protocol/tune", new TuneProvider()); |
| * ProviderManager.getInstance().addExtensionProvider("event", "http://jabber.org/protocol/pubsub#event", pepProvider); |
| * |
| * Tune tune = new Tune("jeff", "1", "CD", "My Title", "My Track"); |
| * pepManager.publish(tune); |
| * </pre> |
| * |
| * @author Jeff Williams |
| */ |
| public class PEPManager { |
| |
| private List<PEPListener> pepListeners = new ArrayList<PEPListener>(); |
| |
| private Connection connection; |
| |
| private PacketFilter packetFilter = new PacketExtensionFilter("event", "http://jabber.org/protocol/pubsub#event"); |
| private PacketListener packetListener; |
| |
| /** |
| * Creates a new PEP exchange manager. |
| * |
| * @param connection a Connection which is used to send and receive messages. |
| */ |
| public PEPManager(Connection connection) { |
| this.connection = connection; |
| init(); |
| } |
| |
| /** |
| * Adds a listener to PEPs. The listener will be fired anytime PEP events |
| * are received from remote XMPP clients. |
| * |
| * @param pepListener a roster exchange listener. |
| */ |
| public void addPEPListener(PEPListener pepListener) { |
| synchronized (pepListeners) { |
| if (!pepListeners.contains(pepListener)) { |
| pepListeners.add(pepListener); |
| } |
| } |
| } |
| |
| /** |
| * Removes a listener from PEP events. |
| * |
| * @param pepListener a roster exchange listener. |
| */ |
| public void removePEPListener(PEPListener pepListener) { |
| synchronized (pepListeners) { |
| pepListeners.remove(pepListener); |
| } |
| } |
| |
| /** |
| * Publish an event. |
| * |
| * @param item the item to publish. |
| */ |
| public void publish(PEPItem item) { |
| // Create a new message to publish the event. |
| PEPPubSub pubSub = new PEPPubSub(item); |
| pubSub.setType(Type.SET); |
| //pubSub.setFrom(connection.getUser()); |
| |
| // Send the message that contains the roster |
| connection.sendPacket(pubSub); |
| } |
| |
| /** |
| * Fires roster exchange listeners. |
| */ |
| private void firePEPListeners(String from, PEPEvent event) { |
| PEPListener[] listeners = null; |
| synchronized (pepListeners) { |
| listeners = new PEPListener[pepListeners.size()]; |
| pepListeners.toArray(listeners); |
| } |
| for (int i = 0; i < listeners.length; i++) { |
| listeners[i].eventReceived(from, event); |
| } |
| } |
| |
| private void init() { |
| // Listens for all roster exchange packets and fire the roster exchange listeners. |
| packetListener = new PacketListener() { |
| public void processPacket(Packet packet) { |
| Message message = (Message) packet; |
| PEPEvent event = (PEPEvent) message.getExtension("event", "http://jabber.org/protocol/pubsub#event"); |
| // Fire event for roster exchange listeners |
| firePEPListeners(message.getFrom(), event); |
| }; |
| |
| }; |
| connection.addPacketListener(packetListener, packetFilter); |
| } |
| |
| public void destroy() { |
| if (connection != null) |
| connection.removePacketListener(packetListener); |
| |
| } |
| |
| protected void finalize() throws Throwable { |
| destroy(); |
| super.finalize(); |
| } |
| } |