topic Re: Update Process Design on Runtime in Alfresco Archive

Update Process Design on Runtime

erensimsek — Wed, 16 Jan 2013 12:55:13 GMT

Hello..We designed a process and deployed to activiti.. The process has many recieve tasks and timer boundary events..We started many porcess instance. We found a bug in process design and we ant to change it. We change the pocess design and deploy new process diagram to activiti again.. We update a

Re: Update Process Design on Runtime

frederikherema1 — Wed, 16 Jan 2013 15:09:20 GMT

The resources in a deployment in activiti are read-only, so they can't be altered using the API. What you COULD do, is deploy a new version of the process-definition, and run the SetProcessDefinitionVersionCmd on all the existing process-definitions, to force them using the update version:


/**
 * {@link Command} that changes the process definition version of an existing
 * process instance.
 * 
 * Warning: This command will NOT perform any migration magic and simply set the
 * process definition version in the database, assuming that the user knows,
 * what he or she is doing.
 * 
 * This is only useful for simple migrations. The new process definition MUST
 * have the exact same activity id to make it still run.
 * 
 * Furthermore, activities referenced by sub-executions and jobs that belong to
 * the process instance MUST exist in the new process definition version.
 * 
 * The command will fail, if there is already a {@link ProcessInstance} or
 * {@link HistoricProcessInstance} using the new process definition version and
 * the same business key as the {@link ProcessInstance} that is to be migrated.
 * 
 * If the process instance is not currently waiting but actively running, then
 * this would be a case for optimistic locking, meaning either the version
 * update or the "real work" wins, i.e., this is a race condition.
 * 
 * @see http://forums.activiti.org/en/viewtopic.php?t=2918
 * @author Falko Menge
 */
public class SetProcessDefinitionVersionCmd implements Command<Void>, Serializable {

Re: Update Process Design on Runtime

erensimsek — Wed, 23 Jan 2013 07:32:04 GMT

Hello again,

I dont want to change proc_def_id. I want to change only the all design of process..
Also I solved this problem with this code.

public void clearDeploymentCache() {
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
DeploymentCache deploymentCache = ((ProcessEngineImpl)processEngine).getProcessEngineConfiguration().getDeploymentCache();
Map<String, ProcessDefinitionEntity> map = deploymentCache.getProcessDefinitionCache();
map.clear();

Map<String, Object> mapKn = deploymentCache.getKnowledgeBaseCache();
mapKn.clear();

}

Thank you for eveything.

Re: Update Process Design on Runtime

savic_prvoslav — Tue, 26 Jul 2016 12:46:45 GMT

Hello,
updating processes is possible and it works just fine for minor fixes.

Here is how to do it:
1: Execute SQL
<code>
– UPDATE ACT_GE_BYTEARRAY
– SET
–     BYTES_ = {put your bytes here}
– WHERE
–     ACT_GE_BYTEARRAY.DEPLOYMENT_ID_ IN (SELECT
–             DEPLOYMENT_ID_
–         FROM
–             ACT_RE_PROCDEF
–         WHERE
–             KEY_ = '{add process key here}')
–         AND ACT_GE_BYTEARRAY.NAME_ NOT LIKE '%.png%';
</code>
This will save the process content. You might want to update the sql a bit if you do not want to update all.

If you are adding programatic support you can if you want to reset cache to avoid restarting the server.
<code>
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
DeploymentManager deploymentManager = ((ProcessEngineImpl)      processEngine).getProcessEngineConfiguration().getDeploymentManager();
deploymentManager.getKnowledgeBaseCache().clear();
deploymentManager.getKnowledgeBaseCache().clear();
</code>
AlfrescoBlog.com

Re: Update Process Design on Runtime

martin_grofcik — Wed, 17 Aug 2016 15:04:45 GMT

Hi,

use org.activiti.engine.impl.cmd.SetProcessDefinitionVersionCmd.

Regards
Martin