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.builder;
018
019import org.apache.camel.AsyncCallback;
020import org.apache.camel.Exchange;
021import org.apache.camel.Processor;
022import org.apache.camel.spi.RouteContext;
023import org.apache.camel.support.processor.DelegateAsyncProcessor;
024
025/**
026 * A builder to disable the use of an error handler so that any exceptions are
027 * thrown. This not recommended in general, the
028 * <a href="http://camel.apache.org/dead-letter-channel.html">Dead Letter
029 * Channel</a> should be used if you are unsure; however it can be useful
030 * sometimes to disable an error handler inside a complex route so that
031 * exceptions bubble up to the parent {@link Processor}
032 */
033public class NoErrorHandlerBuilder extends ErrorHandlerBuilderSupport {
034
035    @Override
036    public Processor createErrorHandler(RouteContext routeContext, Processor processor) {
037        return new DelegateAsyncProcessor(processor) {
038            @Override
039            public boolean process(final Exchange exchange, final AsyncCallback callback) {
040                return super.process(exchange, new AsyncCallback() {
041                    @Override
042                    public void done(boolean doneSync) {
043                        exchange.removeProperty(Exchange.REDELIVERY_EXHAUSTED);
044                        callback.done(doneSync);
045                    }
046                });
047            }
048
049            @Override
050            public String toString() {
051                if (processor == null) {
052                    // if no output then dont do any description
053                    return "";
054                }
055                return "NoErrorHandler[" + processor + "]";
056            }
057        };
058    }
059
060    @Override
061    public boolean supportTransacted() {
062        return false;
063    }
064
065    @Override
066    public ErrorHandlerBuilder cloneBuilder() {
067        NoErrorHandlerBuilder answer = new NoErrorHandlerBuilder();
068        cloneBuilder(answer);
069        return answer;
070    }
071}