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 org.apache.camel.Exchange;
020    import org.apache.camel.impl.DefaultProducer;
021    import org.apache.commons.logging.Log;
022    import org.apache.commons.logging.LogFactory;
023    import org.jivesoftware.smack.GroupChat;
024    import org.jivesoftware.smack.XMPPException;
025    import org.jivesoftware.smack.packet.Message;
026    
027    /**
028     * @version $Revision: 563665 $
029     */
030    public class XmppGroupChatProducer extends DefaultProducer {
031        private static final transient Log LOG = LogFactory.getLog(XmppGroupChatProducer.class);
032        private final XmppEndpoint endpoint;
033        private final String room;
034        private GroupChat chat;
035    
036        public XmppGroupChatProducer(XmppEndpoint endpoint, String room) {
037            super(endpoint);
038            this.endpoint = endpoint;
039            this.room = room;
040            if (room == null) {
041                throw new IllegalArgumentException("No room property specified");
042            }
043        }
044    
045        public void process(Exchange exchange) {
046            // TODO it would be nice if we could reuse the message from the exchange
047            Message message = chat.createMessage();
048            message.setTo(room);
049            message.setFrom(endpoint.getUser());
050    
051            endpoint.getBinding().populateXmppMessage(message, exchange);
052            if (LOG.isDebugEnabled()) {
053                LOG.debug(">>>> message: " + message.getBody());
054            }
055            try {
056                chat.sendMessage(message);
057            } catch (XMPPException e) {
058                throw new RuntimeXmppException(e);
059            }
060        }
061    
062        @Override
063        protected void doStart() throws Exception {
064            super.doStart();
065            if (chat == null) {
066                chat = endpoint.getConnection().createGroupChat(room);
067            }
068        }
069    
070        @Override
071        protected void doStop() throws Exception {
072            if (chat != null) {
073                chat.leave();
074                chat = null;
075            }
076            super.doStop();
077        }
078    
079        // Properties
080        // -------------------------------------------------------------------------
081        public GroupChat getChat() {
082            return chat;
083        }
084    
085        public void setChat(GroupChat chat) {
086            this.chat = chat;
087        }
088    
089        public String getRoom() {
090            return room;
091        }
092    }