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125603 rmunteanu: Merged 5.1.1 (5.1.1) to 5.1.N (5.1.2)
125484 slanglois: MNT-16155 Update source headers - remove old Copyrights from Java and JSP dource files
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@125781 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
60 lines
2.7 KiB
Java
60 lines
2.7 KiB
Java
package org.alfresco.schedule;
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import org.alfresco.repo.lock.JobLockService;
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import org.quartz.JobExecutionContext;
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import org.quartz.JobExecutionException;
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import org.springframework.scheduling.quartz.QuartzJobBean;
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/**
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*
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* This class should be extended any time a scheduled job needs to be
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* implemented to be executed using
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* {@link org.alfresco.repo.lock.JobLockService JobLockService}. It makes the
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* cluster aware locking of the job transparent to the implementation. On the
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* job's spring {@link org.quartz.JobExecutionContext JobExecutionContext} it
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* will still always have to be passed as parameter the
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* {@link org.alfresco.repo.lock.JobLockService jobLockService}. The name to be
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* used for locking of the job is optional, if none is passed a name will be
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* composed using the simple name of the implementation class. In general if it
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* may make sense to have more than one job setup using the same class you
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* should always use a different name on each
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* {@link org.quartz.JobExecutionContext JobExecutionContext} to differentiate
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* the jobs, unless you want the lock to be shared between the different instances.
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* <p/>
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* The only method to be implemented when extending this class is {@link #executeJob(JobExecutionContext)}.
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*
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* @author Rui Fernandes
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* @since 4.1.5
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*/
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public abstract class AbstractScheduledLockedJob extends QuartzJobBean
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{
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private ScheduledJobLockExecuter locker;
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@Override
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protected synchronized final void executeInternal(final JobExecutionContext jobContext)
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throws JobExecutionException
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{
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if (locker == null)
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{
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JobLockService jobLockServiceBean = (JobLockService) jobContext.getJobDetail()
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.getJobDataMap().get("jobLockService");
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if (jobLockServiceBean == null)
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throw new JobExecutionException("Missing setting for bean jobLockService");
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String name = (String) jobContext.getJobDetail().getJobDataMap().get("name");
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String jobName = name == null ? this.getClass().getSimpleName() : name;
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locker = new ScheduledJobLockExecuter(jobLockServiceBean, jobName, this);
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}
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locker.execute(jobContext);
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}
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/**
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* This is the method that should be implemented by any extension of the
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* abstract class. It won't need to worry about any lockings of the job and
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* can focus only on its specific task.
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*
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* @param jobContext context of the execution for retrieving services, etc
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* @throws JobExecutionException if a job fails to execute
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*/
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public abstract void executeJob(JobExecutionContext jobContext) throws JobExecutionException;
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}
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