001/*
002 * Copyright 2013-2014 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.springframework.batch.core.jsr.step.batchlet;
017
018import javax.batch.api.Batchlet;
019import javax.batch.operations.BatchRuntimeException;
020
021import org.springframework.batch.core.ExitStatus;
022import org.springframework.batch.core.StepContribution;
023import org.springframework.batch.core.scope.context.ChunkContext;
024import org.springframework.batch.core.step.tasklet.StoppableTasklet;
025import org.springframework.batch.repeat.RepeatStatus;
026import org.springframework.util.Assert;
027import org.springframework.util.StringUtils;
028
029/**
030 *
031 * @author Michael Minella
032 * @since 3.0
033 */
034public class BatchletAdapter implements StoppableTasklet {
035
036        private Batchlet batchlet;
037
038        public BatchletAdapter(Batchlet batchlet) {
039                Assert.notNull(batchlet, "A Batchlet implementation is required");
040                this.batchlet = batchlet;
041        }
042
043        @Override
044        public RepeatStatus execute(StepContribution contribution,
045                        ChunkContext chunkContext) throws Exception {
046                String exitStatus;
047                try {
048                        exitStatus = batchlet.process();
049                } finally {
050                        chunkContext.setComplete();
051                }
052
053                if(StringUtils.hasText(exitStatus)) {
054                        contribution.setExitStatus(new ExitStatus(exitStatus));
055                }
056
057
058                return RepeatStatus.FINISHED;
059        }
060
061        @Override
062        public void stop() {
063                try {
064                        batchlet.stop();
065                } catch (Exception e) {
066                        throw new BatchRuntimeException(e);
067                }
068        }
069}