How to use ActivityService

[José Manuel Díez]

Dear Yamcs people,

I noticed the "Procedures > Run a script" page of yamcs-web, which would be useful for automated operations. However I get an error "No activity service found".

I tried adding this to the service section of yamcs.instance.yaml:

  - class: org.yamcs.activities.ActivityService

But I get this error when starting Yamcs:

10:21:43.065 _global [3] YamcsServer Instance cybeesat failed: java.lang.ClassCastException: class org.yamcs.activities.ActivityService cannot be cast to class org.yamcs.YamcsService (org.yamcs.activities.ActivityService and org.yamcs.YamcsService are in unnamed module of loader 'app')

I also couldn't find any examples of using the ActivityService. Can you give some pointers?

Also, looking at the API definitions, it looks like it can be used for scheduled scripts. This would be quite useful too. Is it supported in the web ui or only via API?

Thanks,

José

[fabia...@spaceapplications.com]

The usage is demonstrated in one of the example projects. You add the TimelineService to your instance config:

https://github.com/yamcs/yamcs/blob/master/examples/simulation/src/main/yamcs/etc/yamcs.simulator.yaml#L23

(This uses the ActivityService in the background).

[José Manuel Díez]

Thank you, I did a quick search "ActivityService" in the code and examples but didn't find the TimelineService.

Cheers,

José

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