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 InterceptStrategy} implementation to configure stream caching on a RouteContext 028 * 029 * @deprecated no longer in use, will be removed in next Camel release. 030 */ 031@Deprecated 032public final class StreamCaching implements InterceptStrategy { 033 034 public Processor wrapProcessorInInterceptors(CamelContext context, ProcessorDefinition<?> definition, 035 Processor target, Processor nextTarget) throws Exception { 036 return new StreamCachingInterceptor(target); 037 } 038 039 /** 040 * A helper method to return the StreamCaching instance 041 * for a given {@link org.apache.camel.CamelContext} if one is enabled 042 * 043 * @param context the camel context the stream cache is connected to 044 * @return the stream cache or null if none can be found 045 */ 046 public static StreamCaching getStreamCaching(CamelContext context) { 047 return getStreamCaching(context.getInterceptStrategies()); 048 } 049 050 /** 051 * A helper method to return the StreamCaching instance 052 * for a given list of interceptors 053 * 054 * @param interceptors the list of interceptors 055 * @return the stream cache or null if none can be found 056 */ 057 public static StreamCaching getStreamCaching(List<InterceptStrategy> interceptors) { 058 for (InterceptStrategy interceptStrategy : interceptors) { 059 if (interceptStrategy instanceof StreamCaching) { 060 return (StreamCaching)interceptStrategy; 061 } 062 } 063 return null; 064 } 065 066 /** 067 * Remove the {@link StreamCachingInterceptor} from the given list of interceptors 068 * 069 * @param interceptors the list of interceptors 070 */ 071 public static void noStreamCaching(List<InterceptStrategy> interceptors) { 072 for (InterceptStrategy strategy : interceptors) { 073 if (strategy instanceof StreamCaching) { 074 interceptors.remove(strategy); 075 } 076 } 077 } 078 079 @Override 080 public String toString() { 081 return "StreamCaching"; 082 } 083}