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; 018 019import org.apache.camel.AsyncProcessor; 020import org.apache.camel.Endpoint; 021import org.apache.camel.Exchange; 022import org.apache.camel.ExchangePattern; 023import org.apache.camel.Producer; 024import org.apache.camel.util.AsyncProcessorHelper; 025import org.apache.camel.util.ServiceHelper; 026 027/** 028 * Ensures a {@link Producer} is executed within an {@link org.apache.camel.spi.UnitOfWork}. 029 * 030 * @version 031 */ 032public final class UnitOfWorkProducer implements Producer { 033 034 private final Producer producer; 035 private final AsyncProcessor processor; 036 037 /** 038 * The producer which should be executed within an {@link org.apache.camel.spi.UnitOfWork}. 039 * 040 * @param producer the producer 041 */ 042 public UnitOfWorkProducer(Producer producer) { 043 this.producer = producer; 044 // wrap in unit of work 045 CamelInternalProcessor internal = new CamelInternalProcessor(producer); 046 internal.addAdvice(new CamelInternalProcessor.UnitOfWorkProcessorAdvice(null)); 047 this.processor = internal; 048 } 049 050 public Endpoint getEndpoint() { 051 return producer.getEndpoint(); 052 } 053 054 public Exchange createExchange() { 055 return producer.createExchange(); 056 } 057 058 public Exchange createExchange(ExchangePattern pattern) { 059 return producer.createExchange(pattern); 060 } 061 062 @Deprecated 063 public Exchange createExchange(Exchange exchange) { 064 return producer.createExchange(exchange); 065 } 066 067 public void process(final Exchange exchange) throws Exception { 068 AsyncProcessorHelper.process(processor, exchange); 069 } 070 071 public void start() throws Exception { 072 ServiceHelper.startService(processor); 073 } 074 075 public void stop() throws Exception { 076 ServiceHelper.stopService(processor); 077 } 078 079 public boolean isSingleton() { 080 return producer.isSingleton(); 081 } 082 083 @Override 084 public String toString() { 085 return "UnitOfWork(" + producer + ")"; 086 } 087}