[influxdb] Code improvements and enhancements

[J-N-K]

This brings the code improvements regarding metadata handling and code simplifications as well as upgrades of dependencies that were originally contributed as smarthomej/addons#71 and smarthomej/addons#169.

Signed-off-by: Jan N. Klug github@klug.nrw

[jlaur]

Thanks for bringing these improvements back here. Only some minor findings from my side.

[florian-h05]

@J-N-K
Since my upgrade to the 4.0-SNAPSHOTs my openHAB logs get flooded with hundreds of this log message:

2023-03-05 12:35:03.618 [INFO ] [b.internal.InfluxDBStateConvertUtils] - Could not find item 'null' in registry

This happens approx every minute.

[J-N-K]

Interesting. Can you set influxdb to TRACE logging and show the request that is done before? It seems that something is wrong with the item name retrieval while querying the database.

[florian-h05]

Something like this?

2023-03-05 13:05:00.631 [TRACE] [.influxdb.InfluxDBPersistenceService] - Query-Filter: itemname: Aussentemperatur, ordering: ASCENDING, state: null,  operator: EQ, getBeginDate: 2023-03-04T13:05:00.627+01:00, getEndDate: null, getPageSize: 2147483647, getPageNumber: 0
2023-03-05 13:05:00.632 [TRACE] [.influxdb.InfluxDBPersistenceService] - Query from(bucket:"openhab")
	|> range(start:2023-03-04T12:05:00.627000000Z)
	|> filter(fn: (r) => r["_measurement"] == "Aussentemperatur")
	|> keep(columns:["_measurement", "_time", "_value"])
	|> sort(desc:false, columns:["_time"])

I've alse attached the full log since I enabled trace logging for InfluxDB: openhab.log

[J-N-K]

That's fine. I assume Aussentemperatur is the item name, correct?

[florian-h05]

Correct.

[J-N-K]

Which InfluxDB version? If 2, then I found the issue.

[florian-h05]

Version 2.6.1