001/* 002 * Copyright 2006-2012 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 */ 016 017package org.springframework.batch.core.step; 018 019import org.apache.commons.logging.Log; 020import org.apache.commons.logging.LogFactory; 021import org.springframework.batch.core.JobInterruptedException; 022import org.springframework.batch.core.StepExecution; 023 024/** 025 * Policy that checks the current thread to see if it has been interrupted. 026 * 027 * @author Lucas Ward 028 * @author Dave Syer 029 * 030 */ 031public class ThreadStepInterruptionPolicy implements StepInterruptionPolicy { 032 033 protected static final Log logger = LogFactory.getLog(ThreadStepInterruptionPolicy.class); 034 035 /** 036 * Returns if the current job lifecycle has been interrupted by checking if 037 * the current thread is interrupted. 038 */ 039 @Override 040 public void checkInterrupted(StepExecution stepExecution) throws JobInterruptedException { 041 042 if (isInterrupted(stepExecution)) { 043 throw new JobInterruptedException("Job interrupted status detected."); 044 } 045 046 } 047 048 /** 049 * @param stepExecution the current context 050 * @return true if the job has been interrupted 051 */ 052 private boolean isInterrupted(StepExecution stepExecution) { 053 boolean interrupted = Thread.currentThread().isInterrupted(); 054 if (interrupted) { 055 logger.info("Step interrupted through Thread API"); 056 } 057 else { 058 interrupted = stepExecution.isTerminateOnly(); 059 if (interrupted) { 060 logger.info("Step interrupted through StepExecution"); 061 } 062 } 063 return interrupted; 064 } 065 066}