Files
alfresco-community-repo/source/java/org/alfresco/schedule/AbstractScheduledLockedJob.java
Raluca Munteanu 6afb44e712 Merged 5.1.N (5.1.2) to 5.2.N (5.2.1)
125606 rmunteanu: Merged 5.1.1 (5.1.1) to 5.1.N (5.1.2)
      125515 slanglois: MNT-16155 Update source headers - add new Copyrights for Java and JSP source files + automatic check in the build


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@125788 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2016-04-26 13:45:01 +00:00

85 lines
3.7 KiB
Java

/*
* #%L
* Alfresco Repository
* %%
* Copyright (C) 2005 - 2016 Alfresco Software Limited
* %%
* This file is part of the Alfresco software.
* If the software was purchased under a paid Alfresco license, the terms of
* the paid license agreement will prevail. Otherwise, the software is
* provided under the following open source license terms:
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
* #L%
*/
package org.alfresco.schedule;
import org.alfresco.repo.lock.JobLockService;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.scheduling.quartz.QuartzJobBean;
/**
*
* This class should be extended any time a scheduled job needs to be
* implemented to be executed using
* {@link org.alfresco.repo.lock.JobLockService JobLockService}. It makes the
* cluster aware locking of the job transparent to the implementation. On the
* job's spring {@link org.quartz.JobExecutionContext JobExecutionContext} it
* will still always have to be passed as parameter the
* {@link org.alfresco.repo.lock.JobLockService jobLockService}. The name to be
* used for locking of the job is optional, if none is passed a name will be
* composed using the simple name of the implementation class. In general if it
* may make sense to have more than one job setup using the same class you
* should always use a different name on each
* {@link org.quartz.JobExecutionContext JobExecutionContext} to differentiate
* the jobs, unless you want the lock to be shared between the different instances.
* <p/>
* The only method to be implemented when extending this class is {@link #executeJob(JobExecutionContext)}.
*
* @author Rui Fernandes
* @since 4.1.5
*/
public abstract class AbstractScheduledLockedJob extends QuartzJobBean
{
private ScheduledJobLockExecuter locker;
@Override
protected synchronized final void executeInternal(final JobExecutionContext jobContext)
throws JobExecutionException
{
if (locker == null)
{
JobLockService jobLockServiceBean = (JobLockService) jobContext.getJobDetail()
.getJobDataMap().get("jobLockService");
if (jobLockServiceBean == null)
throw new JobExecutionException("Missing setting for bean jobLockService");
String name = (String) jobContext.getJobDetail().getJobDataMap().get("name");
String jobName = name == null ? this.getClass().getSimpleName() : name;
locker = new ScheduledJobLockExecuter(jobLockServiceBean, jobName, this);
}
locker.execute(jobContext);
}
/**
* This is the method that should be implemented by any extension of the
* abstract class. It won't need to worry about any lockings of the job and
* can focus only on its specific task.
*
* @param jobContext context of the execution for retrieving services, etc
* @throws JobExecutionException if a job fails to execute
*/
public abstract void executeJob(JobExecutionContext jobContext) throws JobExecutionException;
}