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