Re: Use of elog inside Phoebus

[Florian Feldbauer via Tech-talk <tech-talk at aps.anl.gov>]

Hey all,

so my answer to Andrea is also visible for everyone else.

I wrote the elog client for Phoebus in 2020.

Some time later the abstract logbook API within Phoebus has been refactored but unfortunately I did not notice these changes.
By the time I noticed, I didn't have the time to work on this project as I'm working since several years mainly on the DAQ for our tracking detector instead of the detector control system.

When I build the first version of the elog client, I dug through the code to find the interfaces I had to implement and to find all the files I needed to modify.
I'm usually not programming in Java so it that was quiet a time consuming task for me.

Does some documentation exists, that explains how to write and integrate such plugins to Phoebus?
If someone could point me to such a documentation or maybe provide a simple example, I would try to find some time and update my elog client for the new phoebus version.

Cheers,
Florian

On 4/26/25 10:38, Andrea Celentano via Tech-talk wrote:

Dear colleagues,

I am trying to use the elog application inside Phoebus. The details I found about this are in these slides: https://indico.fhi-berlin.mpg.de/event/52/contributions/564/attachments/222/683/phoebus-elog-client.pdf

I did the following:

1. I compiled phoebus from scratch with maven (master from gitlab), adding the elog application to build.xml

    <ant dir="app/logbook/ui"/>

    <ant dir="app/logbook/elog"/>       —-> My addiction

    <ant dir="app/log-configuration"/>

 

2. I checked inside my elog installation to read the password:

 <password encoding="SHA256”>My password</password>

3. I added the following to my settings file:

org.phoebus.logbook/logbook_factory=elog

org.phoebus.logbook.ui/logbook_factory=elog

org.phoebus.elog.api/elog_url=http://my_elog_host:8080/Main

org.phoebus.elog.api/username=shift

org.phoebus.elog.api/password=My password

org.phoebus.elog.api/categories=Info, Problem, Shift summary, Data quality, Micromegas, ECAL, MasterTime, MSADC 

org.phoebus.elog.api/types=

When I start Phoebus with ./phoebus.sh -settings my_settings.ini and I open the logbook, I get the following error:

2025-04-26 10:37:40 INFO [org.phoebus.logbook.olog.ui.LogEntryTableViewController] Single search: *

2025-04-26 10:37:40 SEVERE [org.phoebus.logbook.olog.ui.LogbookSearchJob] Failed to obtain logs

org.phoebus.logbook.LogbookException: java.lang.UnsupportedOperationException

at org.phoebus.logbook.LogClient.search(LogClient.java:494)

at org.phoebus.logbook.olog.ui.LogbookSearchJob.lambda$getRunnable$0(LogbookSearchJob.java:59)

at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)

at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)

at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)

at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)

at java.base/java.lang.Thread.run(Thread.java:842)

Caused by: java.lang.UnsupportedOperationException

... 9 more

What I do not understand is why the “olog” app is referred to in this error, since I am not using it at all..

Thanks,

Bests,

Andrea Celentano

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