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.impl; 018 019 import org.apache.camel.LoggingLevel; 020 import org.apache.camel.RollbackExchangeException; 021 import org.apache.camel.processor.Logger; 022 import org.apache.camel.spi.ExceptionHandler; 023 import org.apache.commons.logging.LogFactory; 024 025 /** 026 * A default implementation of {@link ExceptionHandler} which uses a {@link Logger} to 027 * log to an arbitrary {@link org.apache.commons.logging.Log Log} with some {@link LoggingLevel} 028 * 029 * @version $Revision: 757367 $ 030 */ 031 public class LoggingExceptionHandler implements ExceptionHandler { 032 private final Logger logger; 033 034 public LoggingExceptionHandler(Class ownerType) { 035 this(new Logger(LogFactory.getLog(ownerType), LoggingLevel.ERROR)); 036 } 037 038 public LoggingExceptionHandler(Logger logger) { 039 this.logger = logger; 040 } 041 042 public void handleException(Throwable exception) { 043 if (isCausedByRollbackExchangeException(exception)) { 044 // do not log stacktrace for intended rollbacks 045 logger.log(exception.getMessage()); 046 } else { 047 logger.log(exception.getMessage(), exception); 048 } 049 } 050 051 protected boolean isCausedByRollbackExchangeException(Throwable exception) { 052 if (exception instanceof RollbackExchangeException) { 053 return true; 054 } else if (exception.getCause() != null) { 055 // recursive children 056 return isCausedByRollbackExchangeException(exception.getCause()); 057 } 058 059 return false; 060 } 061 062 }