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 */ 017package org.apache.camel.processor; 018 019import org.apache.camel.AsyncCallback; 020import org.apache.camel.AsyncProcessor; 021import org.apache.camel.Exchange; 022import org.apache.camel.LoggingLevel; 023import org.apache.camel.Processor; 024import org.apache.camel.spi.ExchangeFormatter; 025import org.apache.camel.util.AsyncProcessorHelper; 026import org.apache.camel.util.CamelLogger; 027 028/** 029 * A {@link Processor} which just logs to a {@link CamelLogger} object which can be used 030 * as an exception handler instead of using a dead letter queue. 031 * <p/> 032 * The name <tt>CamelLogger</tt> has been chosen to avoid any name clash with log kits 033 * which has a <tt>Logger</tt> class. 034 * 035 * @version 036 */ 037public class CamelLogProcessor implements AsyncProcessor { 038 private CamelLogger log; 039 private ExchangeFormatter formatter; 040 041 public CamelLogProcessor() { 042 this(new CamelLogger(CamelLogProcessor.class.getName())); 043 } 044 045 public CamelLogProcessor(CamelLogger log) { 046 this.formatter = new ToStringExchangeFormatter(); 047 this.log = log; 048 } 049 050 public CamelLogProcessor(CamelLogger log, ExchangeFormatter formatter) { 051 this(log); 052 this.formatter = formatter; 053 } 054 055 @Override 056 public String toString() { 057 return "Logger[" + log + "]"; 058 } 059 060 public void process(Exchange exchange) throws Exception { 061 AsyncProcessorHelper.process(this, exchange); 062 } 063 064 public boolean process(Exchange exchange, AsyncCallback callback) { 065 if (log.shouldLog()) { 066 log.log(formatter.format(exchange)); 067 } 068 callback.done(true); 069 return true; 070 } 071 072 public void process(Exchange exchange, Throwable exception) { 073 if (log.shouldLog()) { 074 log.log(formatter.format(exchange), exception); 075 } 076 } 077 078 public void process(Exchange exchange, String message) { 079 if (log.shouldLog()) { 080 log.log(formatter.format(exchange) + message); 081 } 082 } 083 084 public CamelLogger getLogger() { 085 return log; 086 } 087 088 public void setLogName(String logName) { 089 log.setLogName(logName); 090 } 091 092 public void setLevel(LoggingLevel level) { 093 log.setLevel(level); 094 } 095 096 public void setMarker(String marker) { 097 log.setMarker(marker); 098 } 099 100 /** 101 * {@link ExchangeFormatter} that calls <tt>toString</tt> on the {@link Exchange}. 102 */ 103 static class ToStringExchangeFormatter implements ExchangeFormatter { 104 public String format(Exchange exchange) { 105 return exchange.toString(); 106 } 107 } 108}