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.Predicate;
021 import org.apache.camel.Processor;
022 import org.apache.camel.processor.exceptionpolicy.ExceptionPolicyStrategy;
023
024 /**
025 * Default error handler
026 *
027 * @version $Revision: 784803 $
028 */
029 public class DefaultErrorHandler extends RedeliveryErrorHandler {
030
031 /**
032 * Creates the default error handler.
033 *
034 * @param output outer processor that should use this default error handler
035 * @param logger logger to use for logging failures and redelivery attempts
036 * @param redeliveryProcessor an optional processor to run before redelivery attempt
037 * @param redeliveryPolicy policy for redelivery
038 * @param handledPolicy policy for handling failed exception that are moved to the dead letter queue
039 * @param exceptionPolicyStrategy strategy for onException handling
040 */
041 public DefaultErrorHandler(Processor output, Logger logger, Processor redeliveryProcessor, RedeliveryPolicy redeliveryPolicy,
042 Predicate handledPolicy, ExceptionPolicyStrategy exceptionPolicyStrategy) {
043 super(output, logger, redeliveryProcessor, redeliveryPolicy, handledPolicy, null, null, false);
044 setExceptionPolicy(exceptionPolicyStrategy);
045 }
046
047 public void process(Exchange exchange) throws Exception {
048 // just to let the stacktrace reveal that this is a dead letter channel
049 super.process(exchange);
050 }
051
052 @Override
053 public String toString() {
054 if (output == null) {
055 // if no output then dont do any description
056 return "";
057 }
058 return "DefaultErrorHandler[" + output + "]";
059 }
060
061 }