| 1 | package org.springframework.batch.core.repository.dao; |
| 2 | |
| 3 | import java.util.Collection; |
| 4 | import java.util.Iterator; |
| 5 | |
| 6 | import org.springframework.batch.core.Job; |
| 7 | import org.springframework.batch.core.JobInstance; |
| 8 | import org.springframework.batch.core.JobParameters; |
| 9 | import org.springframework.batch.support.transaction.TransactionAwareProxyFactory; |
| 10 | import org.springframework.util.Assert; |
| 11 | |
| 12 | /** |
| 13 | * In-memory implementation of {@link JobInstanceDao}. |
| 14 | */ |
| 15 | public class MapJobInstanceDao implements JobInstanceDao { |
| 16 | |
| 17 | private static Collection jobInstances = TransactionAwareProxyFactory.createTransactionalList(); |
| 18 | |
| 19 | private long currentId = 0; |
| 20 | |
| 21 | public static void clear() { |
| 22 | jobInstances.clear(); |
| 23 | } |
| 24 | |
| 25 | public JobInstance createJobInstance(Job job, JobParameters jobParameters) { |
| 26 | |
| 27 | Assert.state(getJobInstance(job, jobParameters) == null, "JobInstance must not already exist"); |
| 28 | |
| 29 | JobInstance jobInstance = new JobInstance(new Long(currentId++), jobParameters, job); |
| 30 | jobInstance.incrementVersion(); |
| 31 | jobInstances.add(jobInstance); |
| 32 | |
| 33 | return jobInstance; |
| 34 | } |
| 35 | |
| 36 | public JobInstance getJobInstance(Job job, JobParameters jobParameters) { |
| 37 | |
| 38 | for (Iterator iterator = jobInstances.iterator(); iterator.hasNext();) { |
| 39 | JobInstance instance = (JobInstance) iterator.next(); |
| 40 | if (instance.getJobName().equals(job.getName()) && instance.getJobParameters().equals(jobParameters)) { |
| 41 | return instance; |
| 42 | } |
| 43 | } |
| 44 | return null; |
| 45 | |
| 46 | } |
| 47 | |
| 48 | } |