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.processor.interceptor;
018
019import java.util.List;
020
021import org.apache.camel.CamelContext;
022import org.apache.camel.Processor;
023import org.apache.camel.model.ProcessorDefinition;
024import org.apache.camel.spi.InterceptStrategy;
025
026/**
027 * {@link org.apache.camel.spi.InterceptStrategy} implementation to handle faults as exceptions on a RouteContext
028 */
029public final class HandleFault implements InterceptStrategy {
030
031    public Processor wrapProcessorInInterceptors(CamelContext context, 
032            ProcessorDefinition<?> definition, Processor target, Processor nextTarget) throws Exception {
033
034        return new HandleFaultInterceptor(target);
035    }
036
037    /**
038     * A helper method to return the HandleFault instance
039     * for a given {@link org.apache.camel.CamelContext} if one is enabled
040     *
041     * @param context the camel context the handlefault intercept strategy is connected to
042     * @return the stream cache or null if none can be found
043     */
044    public static HandleFault getHandleFault(CamelContext context) {
045        List<InterceptStrategy> list = context.getInterceptStrategies();
046        for (InterceptStrategy interceptStrategy : list) {
047            if (interceptStrategy instanceof HandleFault) {
048                return (HandleFault)interceptStrategy;
049            }
050        }
051        return null;
052    }
053
054    @Override
055    public String toString() {
056        return "HandleFault";
057    }
058}