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.interceptor;
018
019 import java.util.List;
020
021 import org.apache.camel.CamelContext;
022 import org.apache.camel.Processor;
023 import org.apache.camel.model.ProcessorDefinition;
024 import org.apache.camel.spi.InterceptStrategy;
025
026 /**
027 * {@link org.apache.camel.spi.InterceptStrategy} implementation to handle faults as exceptions on a RouteContext
028 */
029 public final class HandleFault implements InterceptStrategy {
030
031 @SuppressWarnings("unchecked")
032 public Processor wrapProcessorInInterceptors(ProcessorDefinition processorDefinition, Processor target, Processor nextTarget) throws Exception {
033 return new HandleFaultInterceptor(target);
034 }
035
036 /**
037 * A helper method to return the HandleFault instance
038 * for a given {@link org.apache.camel.CamelContext} if one is enabled
039 *
040 * @param context the camel context the handlefault intercept strategy is connected to
041 * @return the stream cache or null if none can be found
042 */
043 public static HandleFault getHandleFault(CamelContext context) {
044 List<InterceptStrategy> list = context.getInterceptStrategies();
045 for (InterceptStrategy interceptStrategy : list) {
046 if (interceptStrategy instanceof HandleFault) {
047 return (HandleFault)interceptStrategy;
048 }
049 }
050 return null;
051 }
052
053 @Override
054 public String toString() {
055 return "HandleFault";
056 }
057 }