| 1 | /* |
| 2 | * Copyright 2006-2012 the original author or authors. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.springframework.batch.core.step; |
| 18 | |
| 19 | import org.apache.commons.logging.Log; |
| 20 | import org.apache.commons.logging.LogFactory; |
| 21 | import org.springframework.batch.core.JobInterruptedException; |
| 22 | import org.springframework.batch.core.StepExecution; |
| 23 | |
| 24 | /** |
| 25 | * Policy that checks the current thread to see if it has been interrupted. |
| 26 | * |
| 27 | * @author Lucas Ward |
| 28 | * @author Dave Syer |
| 29 | * |
| 30 | */ |
| 31 | public class ThreadStepInterruptionPolicy implements StepInterruptionPolicy { |
| 32 | |
| 33 | protected static final Log logger = LogFactory.getLog(ThreadStepInterruptionPolicy.class); |
| 34 | |
| 35 | /** |
| 36 | * Returns if the current job lifecycle has been interrupted by checking if |
| 37 | * the current thread is interrupted. |
| 38 | */ |
| 39 | @Override |
| 40 | public void checkInterrupted(StepExecution stepExecution) throws JobInterruptedException { |
| 41 | |
| 42 | if (isInterrupted(stepExecution)) { |
| 43 | throw new JobInterruptedException("Job interrupted status detected."); |
| 44 | } |
| 45 | |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * @param stepExecution the current context |
| 50 | * @return true if the job has been interrupted |
| 51 | */ |
| 52 | private boolean isInterrupted(StepExecution stepExecution) { |
| 53 | boolean interrupted = Thread.currentThread().isInterrupted(); |
| 54 | if (interrupted) { |
| 55 | logger.info("Step interrupted through Thread API"); |
| 56 | } |
| 57 | else { |
| 58 | interrupted = stepExecution.isTerminateOnly(); |
| 59 | if (interrupted) { |
| 60 | logger.info("Step interrupted through StepExecution"); |
| 61 | } |
| 62 | } |
| 63 | return interrupted; |
| 64 | } |
| 65 | |
| 66 | } |