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 org.apache.camel.AsyncCallback;
020import org.apache.camel.Exchange;
021import org.apache.camel.Processor;
022import org.apache.camel.StreamCache;
023import org.apache.camel.processor.DelegateAsyncProcessor;
024import org.apache.camel.util.MessageHelper;
025
026/**
027 * An interceptor that converts streams messages into a re-readable format
028 * by wrapping the stream into a {@link StreamCache}.
029 *
030 * @deprecated no longer in use, will be removed in next Camel release.
031 */
032@Deprecated
033public class StreamCachingInterceptor extends DelegateAsyncProcessor {
034
035    public StreamCachingInterceptor() {
036    }
037
038    public StreamCachingInterceptor(Processor processor) {
039        super(processor);
040    }
041
042    @Override
043    public String toString() {
044        return "StreamCachingInterceptor[" + processor + "]";
045    }
046
047    @Override
048    public boolean process(Exchange exchange, AsyncCallback callback) {
049        StreamCache newBody = exchange.getIn().getBody(StreamCache.class);
050        if (newBody != null) {
051            exchange.getIn().setBody(newBody);
052        }
053        MessageHelper.resetStreamCache(exchange.getIn());
054
055        return processor.process(exchange, callback);
056    }
057
058}