001 /**
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one or more
004 * contributor license agreements. See the NOTICE file distributed with
005 * this work for additional information regarding copyright ownership.
006 * The ASF licenses this file to You under the Apache License, Version 2.0
007 * (the "License"); you may not use this file except in compliance with
008 * the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package org.apache.camel.component.xmpp;
019
020 import org.apache.camel.Consumer;
021 import org.apache.camel.Processor;
022 import org.apache.camel.impl.DefaultConsumer;
023 import org.apache.commons.logging.Log;
024 import org.apache.commons.logging.LogFactory;
025 import org.jivesoftware.smack.PacketListener;
026 import org.jivesoftware.smack.packet.Message;
027 import org.jivesoftware.smack.packet.Packet;
028 import org.jivesoftware.smack.packet.RosterPacket;
029
030 import java.util.Iterator;
031
032 /**
033 * A {@link Consumer} which listens to XMPP packets
034 *
035 * @version $Revision: 534145 $
036 */
037 public class XmppConsumer extends DefaultConsumer<XmppExchange> implements PacketListener {
038 private static final transient Log log = LogFactory.getLog(XmppConsumer.class);
039 private final XmppEndpoint endpoint;
040
041 public XmppConsumer(XmppEndpoint endpoint, Processor processor) {
042 super(endpoint, processor);
043 this.endpoint = endpoint;
044 }
045
046 @Override
047 protected void doStart() throws Exception {
048 super.doStart();
049 endpoint.getConnection().addPacketListener(this, endpoint.getFilter());
050 }
051
052 @Override
053 protected void doStop() throws Exception {
054 endpoint.getConnection().removePacketListener(this);
055 super.doStop();
056 }
057
058 public void processPacket(Packet packet) {
059
060 if (packet instanceof Message) {
061 Message message = (Message) packet;
062 if (log.isDebugEnabled()) {
063 log.debug("<<<< message: " + message.getBody());
064 }
065 XmppExchange exchange = endpoint.createExchange(message);
066 try {
067 getProcessor().process(exchange);
068 } catch (Exception e) {
069 // TODO: what should we do when a processing failure occurs??
070 e.printStackTrace();
071 }
072 }
073 else if (packet instanceof RosterPacket) {
074 RosterPacket rosterPacket = (RosterPacket) packet;
075 if (log.isDebugEnabled()) {
076 log.debug("Roster packet with : " + rosterPacket.getRosterItemCount() + " item(s)");
077 Iterator rosterItems = rosterPacket.getRosterItems();
078 while (rosterItems.hasNext()) {
079 Object item = rosterItems.next();
080 log.debug("Roster item: " + item);
081 }
082 }
083 }
084 else {
085 if (log.isDebugEnabled()) {
086 log.debug("<<<< ignored packet: " + packet);
087 }
088
089 }
090 }
091 }