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.Exchange;
022 import org.apache.camel.Processor;
023 import org.apache.camel.converter.stream.StreamCache;
024 import org.apache.camel.model.InterceptorRef;
025 import org.apache.camel.model.InterceptorType;
026 import org.apache.camel.processor.Interceptor;
027
028 /**
029 * {@link Interceptor} that converts a message into a re-readable format
030 */
031 public class StreamCachingInterceptor extends Interceptor {
032
033 public StreamCachingInterceptor() {
034 super();
035 setInterceptorLogic(new Processor() {
036 public void process(Exchange exchange) throws Exception {
037 Object newBody = exchange.getIn().getBody(StreamCache.class);
038 if (newBody != null) {
039 exchange.getIn().setBody(newBody);
040 }
041 proceed(exchange);
042 }
043 });
044 }
045
046 public StreamCachingInterceptor(Processor processor) {
047 this();
048 setProcessor(processor);
049 }
050
051 @Override
052 public String toString() {
053 return "StreamCachingInterceptor";
054 }
055
056 /**
057 * Remove the {@link StreamCachingInterceptor} type of interceptor from the given list of interceptors
058 *
059 * @param interceptors the list of interceptors
060 */
061 public static void noStreamCaching(List<InterceptorType> interceptors) {
062 for (int i = 0; i < interceptors.size(); i++) {
063 InterceptorType interceptor = interceptors.get(i);
064 if (interceptor instanceof InterceptorRef
065 && ((InterceptorRef)interceptor).getInterceptor() instanceof StreamCachingInterceptor) {
066 interceptors.remove(interceptor);
067 }
068 }
069 }
070 }