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 StreamCache newBody = exchange.getIn().getBody(StreamCache.class); 038 if (newBody != null) { 039 newBody.reset(); 040 exchange.getIn().setBody(newBody); 041 } 042 proceed(exchange); 043 } 044 }); 045 } 046 047 public StreamCachingInterceptor(Processor processor) { 048 this(); 049 setProcessor(processor); 050 } 051 052 @Override 053 public String toString() { 054 return "StreamCachingInterceptor"; 055 } 056 057 /** 058 * Remove the {@link StreamCachingInterceptor} type of interceptor from the given list of interceptors 059 * 060 * @param interceptors the list of interceptors 061 */ 062 public static void noStreamCaching(List<InterceptorType> interceptors) { 063 for (int i = 0; i < interceptors.size(); i++) { 064 InterceptorType interceptor = interceptors.get(i); 065 if (interceptor instanceof InterceptorRef 066 && ((InterceptorRef)interceptor).getInterceptor() instanceof StreamCachingInterceptor) { 067 interceptors.remove(interceptor); 068 } 069 } 070 } 071 }