topic Re: Newbie. Activiti Clock Configuration in Alfresco Archive

Newbie. Activiti Clock Configuration

sankalpn — Fri, 20 Mar 2015 02:26:45 GMT

Hi all, While using activiti-explorer 5.16.3 with tomcat7 on postgres-9.1 as DB and Ubuntu 12.04 machine, I noticed something weird. The moment I deploy a process definition, the message on activiti-explorer UI says "Deployed one day ago". Logs in catalina.out have correct system time which is c

Re: Newbie. Activiti Clock Configuration

jbarrez — Tue, 24 Mar 2015 13:19:00 GMT

> Apparently activiti-explorer clock i

The activiti explorer 'clock' simply uses new Date()….

What happens if you simply create a simple Java class that prints out what new Date() does?

Re: Newbie. Activiti Clock Configuration

sankalpn — Tue, 24 Mar 2015 18:16:46 GMT

The date is still behind system date, by one day first, and then keeps falling back a day every day.

I tried :

<DelegateExecution>.getEngineServices().getProcessEngineConfiguration().getClock().setCurrentCalendar(Calendar.getInstance());

This sets clock to current system clock, but I have to do this every day, otherwise activiti clock falls back a day.

Again, it still doesn't solve the problem of having to manually execute async service task or TimerIntermediateCatchEvent (from Manage -> Jobs in activiti-explorer).

Thanks and Regards,
Sankalp

Re: Newbie. Activiti Clock Configuration

sankalpn — Wed, 25 Mar 2015 02:01:16 GMT

> What happens if you simply create a simple Java class that prints out what new Date() does?

This prints the current system date and time, which is correct.

Re: Newbie. Activiti Clock Configuration

sankalpn — Wed, 25 Mar 2015 20:12:21 GMT

I performed a bunch of steps which fixed this problem:
1) I replaced DefaultClockImpl.class in activiti-explorer 5.16.3 war with class file from latest master build
2) In datasource bean, set defaultAutoCommit to false
3) Restarted postgres
Later, as and if time permits, I'll try to figure out which step(s) exactly fixed this. But, I suspect this might be solve the problem in this thread as well:
http://forums.activiti.org/content/boundary-event-subprocess-not-firing

Re: Newbie. Activiti Clock Configuration

jbarrez — Tue, 31 Mar 2015 07:50:29 GMT

> This sets clock to current system clock, but I have to do this every day, otherwise activiti clock falls back a day.

This method is ment for testing purposes, not for real processes!

We don't do anything than to delegate to the JDK or the database …

Re: Newbie. Activiti Clock Configuration

sankalpn — Wed, 01 Apr 2015 18:29:51 GMT

> We don't do anything than to delegate to the JDK or the database …

Thanks for this clarification. I have removed setCurrentCalendar from my service task. Plus, I am using original activiti-explorer 5.16.3. I still don't know how the timer discord sets in, but activiti clock syncs with system clock after activiti-explorer and postgres restart. I will investigate further.

Re: Newbie. Activiti Clock Configuration

car82 — Sun, 13 Sep 2015 15:00:06 GMT

Hi have the same issue that i haven't resolved with the advices found here. Any new suggestions?

p.s.: i use the H2 database.

Re: Newbie. Activiti Clock Configuration

vasile_dirla — Mon, 14 Sep 2015 11:27:26 GMT

car82, what Activiti version are you using ?
this issue could be reproduced only in activiti-explorer or also the engine is affected in your case?

Re: Newbie. Activiti Clock Configuration

sankalpn — Mon, 14 Sep 2015 14:04:36 GMT

I switched to using activiti as embedded workflow engine and used spring configuration. Haven't faced the issue since. I use postgres in production and H2 in unit tests. Make sure your task exector is enabled.

Re: Newbie. Activiti Clock Configuration

car82 — Thu, 17 Sep 2015 14:15:37 GMT

Hi i am using Activiti 5.16.3 and the issue affect only actviti explorer.

Re: Newbie. Activiti Clock Configuration

martin_grofcik — Tue, 22 Sep 2015 06:49:07 GMT

Hi,

org.activiti.engine.runtime.Clock is my baby. 🙂 So I should be responsible for its failures. I created this interface to be able to control time in which engine lives.
Sankalp problem is caused by


@Override
  public void setCurrentCalendar(Calendar currentTime) {
    CURRENT_TIME = currentTime;
  }

The problem is when CURRENT_TIME is set real (new Date()) time is not used any more. Any set method on the clock is used to control time. It is used for instance during the simulations to control virtual time.

Regarding car82 problem:
Could you describe it more? (jUnit test would be the best.:-) ).
Do you use any set clock method?

Regards
Martin