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.spi.IdAware; 026import org.apache.camel.util.AsyncProcessorHelper; 027import org.apache.camel.util.CamelLogger; 028 029/** 030 * A {@link Processor} which just logs to a {@link CamelLogger} object which can be used 031 * as an exception handler instead of using a dead letter queue. 032 * <p/> 033 * The name <tt>CamelLogger</tt> has been chosen to avoid any name clash with log kits 034 * which has a <tt>Logger</tt> class. 035 * 036 * @version 037 */ 038public class CamelLogProcessor implements AsyncProcessor, IdAware { 039 private String id; 040 private CamelLogger log; 041 private ExchangeFormatter formatter; 042 043 public CamelLogProcessor() { 044 this(new CamelLogger(CamelLogProcessor.class.getName())); 045 } 046 047 public CamelLogProcessor(CamelLogger log) { 048 this.formatter = new ToStringExchangeFormatter(); 049 this.log = log; 050 } 051 052 public CamelLogProcessor(CamelLogger log, ExchangeFormatter formatter) { 053 this(log); 054 this.formatter = formatter; 055 } 056 057 @Override 058 public String toString() { 059 return "Logger[" + log + "]"; 060 } 061 062 public String getId() { 063 return id; 064 } 065 066 public void setId(String id) { 067 this.id = id; 068 } 069 070 public void process(Exchange exchange) throws Exception { 071 AsyncProcessorHelper.process(this, exchange); 072 } 073 074 public boolean process(Exchange exchange, AsyncCallback callback) { 075 if (log.shouldLog()) { 076 log.log(formatter.format(exchange)); 077 } 078 callback.done(true); 079 return true; 080 } 081 082 public void process(Exchange exchange, Throwable exception) { 083 if (log.shouldLog()) { 084 log.log(formatter.format(exchange), exception); 085 } 086 } 087 088 public void process(Exchange exchange, String message) { 089 if (log.shouldLog()) { 090 log.log(formatter.format(exchange) + message); 091 } 092 } 093 094 public CamelLogger getLogger() { 095 return log; 096 } 097 098 public void setLogName(String logName) { 099 log.setLogName(logName); 100 } 101 102 public void setLevel(LoggingLevel level) { 103 log.setLevel(level); 104 } 105 106 public void setMarker(String marker) { 107 log.setMarker(marker); 108 } 109 110 /** 111 * {@link ExchangeFormatter} that calls <tt>toString</tt> on the {@link Exchange}. 112 */ 113 static class ToStringExchangeFormatter implements ExchangeFormatter { 114 public String format(Exchange exchange) { 115 return exchange.toString(); 116 } 117 } 118}