topic Re: Invalid execution flow when User Task and Boundary Timer has same out node in Alfresco Archive

Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Tue, 26 Apr 2016 13:58:27 GMT

Hi,I have a workflow which has two user task U1 and U2, U1 has attached boundary timer BT with 1 minute time duration. U1 and BT both has out node ends to U2. Please refer attached process definition and workflow status screen here : https://www.dropbox.com/s/x85fgfyqqih5wa2/Activiti_BoundaryTimer.p

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Wed, 27 Apr 2016 06:03:41 GMT

Hi,

I have tested the same scenario with exclusive gateway, execution path displayed still invalid : https://www.dropbox.com/s/4bxz9ruwprelk6a/Activiti_BoundaryTimer_ExGT.png?dl=0

but when I have added another exclusive gateway in between it displayed proper execution path : https://www.dropbox.com/s/hillzr03vfnzlyn/Activiti_BoundaryTimer_ExGT2.png?dl=0

So is this a Activiti framework's standards that out node should be different for boundary timer event ?

Please suggest.
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

martin_grofcik — Wed, 27 Apr 2016 06:06:35 GMT

Hi JDP,

How did you get execution path?
(Could you create jUnit test? https://forums.activiti.org/content/sticky-how-write-unit-test)

Regards
Martin

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Thu, 28 Apr 2016 10:45:18 GMT

Hi Martin,

Thanks for the reply, actually I have observed this behavior in my application which has integrated activiti framework. So I have tested the same workflow in activti explorer which I had downloaded from activiti site itself, and found same behavior here as well, I am considering execution path which displayed with RED font. All the attached screenshots above are also of the same activiti explorer.

So, here activiti explorer is also displaying execution path in this way. however I am constructing the execution path from processDefinition.getActivities() and
List<HistoricActivityInstance> historicActivityInstances = ActivitiUtil.getHistoryService().createHistoricActivityInstanceQuery()
.processInstanceId(processInstanceId).list();

You can check the same scenario in activiti explorer with simple workflow as I had attached, just execute boundary timer instead of complete user task.

appreciate your suggestions.

Thanks,
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Mon, 02 May 2016 10:13:01 GMT

Hi Martin,

I am trying to create unit test for the same, seems it will take time, meanwhile can you please give some advise on this.

Thanks,
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Tue, 03 May 2016 14:21:54 GMT

Hi Martin,

I have created unit test for above mentioned scenario, please find attached. Test case contains logic to find workflow execution path and as a output this test case will create workflow image file with execution path in RED font same as activiti explorer.

below dependency needs to be added in pom file :
<dependency>
   <groupId>org.apache.commons</groupId>
   <artifactId>commons-io</artifactId>
   <version>1.3.2</version>
</dependency>

Please check and suggest.

Thanks,
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Fri, 06 May 2016 10:44:16 GMT

Hi Martin,

I think this problem is related to activiti explorer, as it is highlighting invalid execution path in workflow image, should I raise this problem in Activiti Explorer forum ?

Please advise.

Thanks,
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

martin_grofcik — Mon, 09 May 2016 08:38:09 GMT

Hi JDP,

I tried to execute your jUnit test. I see following issues:
1. pom.xml is missing (What are the dependencies? Dependencies are important.)
2. there is no assertion. What do you expect there?

Could you provide a link to git hub project (or whole project zip) with failing test please?

Regards
Martin

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Mon, 09 May 2016 12:10:00 GMT

Hi Martin,

Please refer attached "ActivitiUnitTest" rar file which contains whole unit test project with failure test. I have added assertion as well, I am expecting execution flow from boundary timer to exclusive gateway which is not there in result and actual execution path is from boundary timer to exclusive gateway.

Note that after assertion, there will be workflow diagram generation code which will generate png image shows workflow with execution path in RED font.

Thanks,
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

martin_grofcik — Tue, 10 May 2016 10:45:56 GMT

Hi JDP,

thanks for the test. It is really easy to find why the flow is not highlighted.

The problem is that A3 is not added to the list of activities processDefinition.getActivities().
Parser properly gets boundary event (that's why it is displayed on the diagram).
I would say that ProcessDefinition needs a fix.

Regards
Martin

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Tue, 10 May 2016 13:22:48 GMT

Hi Martin,

Many thanks for try this out. Yes you are correct and I know this as well, processDefinition.getActivities() method is not giving expected result, but I don't know why. Please refer this design : https://www.dropbox.com/s/4bxz9ruwprelk6a/Activiti_BoundaryTimer_ExGT.png?dl=0

This workflow is designed and exported from activiti explorer itself, which kind of correction you are suggesting for this workflow design, Is this workflow design is invalid, End point of UT1 and Boundary Timer should not be same without any intermediate node ?, if So, I should add a validation to stop user to design such workflows.

The same behavior is also noted for this design as well : https://www.dropbox.com/s/jnntduuiam6y8xb/MultipleOutgoingFlows.png?dl=0
here also few execution path not being displayed in RED font, please suggest if this is invalid design. User/Service Tasks could not have multiple outgoing flows directly ?

Thanks,
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Tue, 17 May 2016 05:46:59 GMT

Hi Martin,

If you get time, please advise on this.

Regards,
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

martin_grofcik — Tue, 17 May 2016 07:17:04 GMT

Hi JDP,

passing test is in the attachment.

Regards
Martin

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Tue, 17 May 2016 09:44:54 GMT

Hi Martin,

Thanks for your quick response and look in to this. I have tested attached Unit test and found that now it is highlighting both the path, which is wrong, is should highlight only one path which is from Boundary timer to Exclusive gateway as workflow moved further through boundary timer.

I have modified the same unit test and just added one more assertion as attached, please check and advise.

Appreciate your help, Thanks,
JDP

Re: Invalid execution flow when User Task and Boundary Timer has same out node

jdp — Tue, 07 Jun 2016 13:05:27 GMT

Hi Martin,

Thanks for your time. I have resolved the issue by just add code to check whether boundary timer is executed or not.

Thanks,
JDP