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.irc;
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.schwering.irc.lib.IRCConnection;
024    import org.schwering.irc.lib.IRCEventListener;
025    
026    public class IrcProducer extends DefaultProducer {
027    
028        public static final String[] COMMANDS = new String[]{"AWAY", "INVITE", "ISON", "JOIN", "KICK", "LIST", "NAMES",
029            "PRIVMSG", "MODE", "NICK", "NOTICE", "PART", "PONG", "QUIT", "TOPIC", "WHO", "WHOIS", "WHOWAS", "USERHOST"};
030    
031        private static final transient Log LOG = LogFactory.getLog(IrcProducer.class);
032    
033        private IRCConnection connection;
034        private IrcEndpoint endpoint;
035        private IRCEventListener ircErrorLogger;
036    
037        public IrcProducer(IrcEndpoint endpoint, IRCConnection connection) {
038            super(endpoint);
039            this.endpoint = endpoint;
040            this.connection = connection;
041        }
042    
043        public void process(Exchange exchange) throws Exception {
044            final String msg = exchange.getIn().getBody(String.class);
045            if (isMessageACommand(msg)) {
046                connection.send(msg);
047            } else {
048                String target = endpoint.getConfiguration().getTarget();
049    
050                if (LOG.isDebugEnabled()) {
051                    LOG.debug("Sending to: " + target + " message: " + msg);
052                }
053                connection.doPrivmsg(target, msg);
054            }
055        }
056    
057        @Override
058        protected void doStart() throws Exception {
059            super.doStart();
060    
061            ircErrorLogger = createIrcErrorLogger();
062            connection.addIRCEventListener(ircErrorLogger);
063    
064            String target = endpoint.getConfiguration().getTarget();
065            if (LOG.isDebugEnabled()) {
066                LOG.debug("Joining: " + target);
067            }
068            connection.doJoin(target);
069        }
070    
071        @Override
072        protected void doStop() throws Exception {
073            if (connection != null) {
074                connection.removeIRCEventListener(ircErrorLogger);
075            }
076            super.doStop();
077        }
078    
079        protected boolean isMessageACommand(String msg) {
080            for (String command : COMMANDS) {
081                if (msg.startsWith(command)) {
082                    return true;
083                }
084            }
085            return false;
086        }
087    
088        protected IRCEventListener createIrcErrorLogger() {
089            return new IrcErrorLogger(LOG);
090        }
091    
092    }