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.processor;
018    
019    import org.apache.camel.Exchange;
020    import org.apache.camel.LoggingLevel;
021    import org.apache.camel.Processor;
022    import org.apache.camel.spi.ExchangeFormatter;
023    import org.apache.camel.util.CamelLogger;
024    
025    /**
026     * A {@link Processor} which just logs to a {@link CamelLogger} object which can be used
027     * as an exception handler instead of using a dead letter queue.
028     * <p/>
029     * The name <tt>CamelLogger</tt> has been chosen to avoid any name clash with log kits
030     * which has a <tt>Logger</tt> class.
031     *
032     * @version 
033     */
034    public class CamelLogProcessor implements Processor {
035        private CamelLogger log;
036        private ExchangeFormatter formatter;
037    
038        public CamelLogProcessor() {
039            this(new CamelLogger(CamelLogProcessor.class.getName()));
040        }
041        
042        public CamelLogProcessor(CamelLogger log) {
043            this.formatter = new DefaultExchangeFormatter();
044            this.log = log;
045        }
046    
047        public CamelLogProcessor(CamelLogger log, ExchangeFormatter formatter) {
048            this(log);
049            this.formatter = formatter;
050        }
051    
052        @Override
053        public String toString() {
054            return "Logger[" + log + "]";
055        }
056    
057        public void process(Exchange exchange) {
058            if (log.shouldLog()) {
059                log.log(formatter.format(exchange));
060            }
061        }
062        
063        public void process(Exchange exchange, Throwable exception) {
064            if (log.shouldLog()) {
065                log.log(formatter.format(exchange), exception);
066            }
067        }
068    
069        public void process(Exchange exchange, String message) {
070            if (log.shouldLog()) {
071                log.log(formatter.format(exchange) + message);
072            }
073        }
074    
075        public CamelLogger getLogger() {
076            return log;
077        }
078        
079        public void setLogName(String logName) {
080            log.setLogName(logName);
081        }
082        
083        public void setLevel(LoggingLevel level) {
084            log.setLevel(level);
085        }
086    
087        public void setMarker(String marker) {
088            log.setMarker(marker);
089        }
090    
091        static class DefaultExchangeFormatter implements ExchangeFormatter {
092            public String format(Exchange exchange) {
093                return exchange.toString();
094            }
095        }
096    }