/*
* Copyright 2006-2012 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.batch.core.step;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.batch.core.JobInterruptedException;
import org.springframework.batch.core.StepExecution;
/**
* Policy that checks the current thread to see if it has been interrupted.
*
* @author Lucas Ward
* @author Dave Syer
*
*/
public class ThreadStepInterruptionPolicy implements StepInterruptionPolicy {
protected static final Log logger = LogFactory.getLog(ThreadStepInterruptionPolicy.class);
/**
* Returns if the current job lifecycle has been interrupted by checking if
* the current thread is interrupted.
*/
@Override
public void checkInterrupted(StepExecution stepExecution) throws JobInterruptedException {
if (isInterrupted(stepExecution)) {
throw new JobInterruptedException("Job interrupted status detected.");
}
}
/**
* @param stepExecution the current context
* @return true if the job has been interrupted
*/
private boolean isInterrupted(StepExecution stepExecution) {
boolean interrupted = Thread.currentThread().isInterrupted();
if (interrupted) {
logger.info("Step interrupted through Thread API");
}
else {
interrupted = stepExecution.isTerminateOnly();
if (interrupted) {
logger.info("Step interrupted through StepExecution");
}
}
return interrupted;
}
}