001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.component.xmpp; 018 019 import java.util.Iterator; 020 021 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; 025 026 import org.jivesoftware.smack.PacketListener; 027 import org.jivesoftware.smack.packet.Message; 028 import org.jivesoftware.smack.packet.Packet; 029 import org.jivesoftware.smack.packet.RosterPacket; 030 031 /** 032 * A {@link Consumer} which listens to XMPP packets 033 * 034 * @version $Revision: 563665 $ 035 */ 036 public class XmppConsumer extends DefaultConsumer<XmppExchange> implements PacketListener { 037 private static final transient Log LOG = LogFactory.getLog(XmppConsumer.class); 038 private final XmppEndpoint endpoint; 039 040 public XmppConsumer(XmppEndpoint endpoint, Processor processor) { 041 super(endpoint, processor); 042 this.endpoint = endpoint; 043 } 044 045 @Override 046 protected void doStart() throws Exception { 047 super.doStart(); 048 endpoint.getConnection().addPacketListener(this, endpoint.getFilter()); 049 } 050 051 @Override 052 protected void doStop() throws Exception { 053 endpoint.getConnection().removePacketListener(this); 054 super.doStop(); 055 } 056 057 public void processPacket(Packet packet) { 058 059 if (packet instanceof Message) { 060 Message message = (Message)packet; 061 if (LOG.isDebugEnabled()) { 062 LOG.debug("<<<< message: " + message.getBody()); 063 } 064 XmppExchange exchange = endpoint.createExchange(message); 065 try { 066 getProcessor().process(exchange); 067 } catch (Exception e) { 068 // TODO: what should we do when a processing failure occurs?? 069 e.printStackTrace(); 070 } 071 } else if (packet instanceof RosterPacket) { 072 RosterPacket rosterPacket = (RosterPacket)packet; 073 if (LOG.isDebugEnabled()) { 074 LOG.debug("Roster packet with : " + rosterPacket.getRosterItemCount() + " item(s)"); 075 Iterator rosterItems = rosterPacket.getRosterItems(); 076 while (rosterItems.hasNext()) { 077 Object item = rosterItems.next(); 078 LOG.debug("Roster item: " + item); 079 } 080 } 081 } else { 082 if (LOG.isDebugEnabled()) { 083 LOG.debug("<<<< ignored packet: " + packet); 084 } 085 086 } 087 } 088 }