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.spring.spi;
018
019 import org.apache.camel.Processor;
020 import org.apache.camel.spi.Policy;
021 import org.apache.commons.logging.Log;
022 import org.apache.commons.logging.LogFactory;
023 import org.springframework.transaction.support.TransactionTemplate;
024
025 /**
026 * Wraps the processor in a Spring transaction
027 *
028 * @version $Revision: 1.1 $
029 */
030 public class SpringTransactionPolicy<E> implements Policy<E> {
031 private static final transient Log LOG = LogFactory.getLog(SpringTransactionPolicy.class);
032 private TransactionTemplate template;
033
034 public SpringTransactionPolicy(TransactionTemplate template) {
035 this.template = template;
036 }
037
038 public Processor wrap(Processor processor) {
039 final TransactionTemplate transactionTemplate = getTemplate();
040 if (transactionTemplate == null) {
041 LOG.warn("No TransactionTemplate available so transactions will not be enabled!");
042 return processor;
043 }
044
045 TransactionInterceptor answer = new TransactionInterceptor(transactionTemplate);
046 answer.setProcessor(processor);
047 return answer;
048 }
049
050 public TransactionTemplate getTemplate() {
051 return template;
052 }
053
054 public void setTemplate(TransactionTemplate template) {
055 this.template = template;
056 }
057 }