Most of that is not relevant to persisating, retrieving or calculating some Item value. That’s the reading you’re interested in after it has been transferred to openHAB.
Which Item are you interested in?
Do you have persistence set up for it? (OH3 has rrd4j persistence installed by default, so you probably have that)
When do you want to perform your calculations?
What do you intend to do with the results?
