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 }