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.RuntimeCamelException;
021    import org.apache.camel.impl.DefaultProducer;
022    import org.apache.commons.logging.Log;
023    import org.apache.commons.logging.LogFactory;
024    import org.schwering.irc.lib.IRCConnection;
025    import org.schwering.irc.lib.IRCEventListener;
026    
027    public class IrcProducer extends DefaultProducer<IrcExchange> {
028    
029        public static final String[] COMMANDS = new String[] {"AWAY", "INVITE", "ISON", "JOIN", "KICK", "LIST", "NAMES", "PRIVMSG", "MODE", "NICK", "NOTICE", "PART", "PONG", "QUIT", "TOPIC", "WHO",
030                                                              "WHOIS", "WHOWAS", "USERHOST"};
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            try {
045                final String msg = exchange.getIn().getBody(String.class);
046                if (isMessageACommand(msg)) {
047                    connection.send(msg);
048                } else {
049                    final String target = endpoint.getConfiguration().getTarget();
050    
051                    if (LOG.isDebugEnabled()) {
052                        LOG.debug("sending to: " + target + " message: " + msg);
053                    }
054    
055                    connection.doPrivmsg(target, msg);
056                }
057            } catch (Exception e) {
058                throw new RuntimeCamelException(e);
059            }
060        }
061    
062        @Override
063        protected void doStart() throws Exception {
064            super.doStart();
065    
066            ircErrorLogger = createIrcErrorLogger();
067            connection.addIRCEventListener(ircErrorLogger);
068    
069            final String target = endpoint.getConfiguration().getTarget();
070    
071            LOG.debug("joining: " + target);
072            connection.doJoin(target);
073        }
074    
075        @Override
076        protected void doStop() throws Exception {
077            super.doStop();
078            if (connection != null) {
079                connection.removeIRCEventListener(ircErrorLogger);
080            }
081        }
082    
083        protected boolean isMessageACommand(String msg) {
084            for (String command : COMMANDS) {
085                if (msg.startsWith(command)) {
086                    return true;
087                }
088            }
089            return false;
090        }
091    
092        protected IRCEventListener createIrcErrorLogger() {
093            return new IrcErrorLogger(LOG);
094        }
095    
096    }