Extract basic File Metadata on File Persister Service and push as flavor about strawberryfield

[giancarlobi]

@DiegoPino ok to start here and eventually a call on Friday. I'm little busy so I'll start posting here tomorrow. Have a nice day, amigo

[DiegoPino]

@giancarlobi when you have a moment i would like to discuss the following:

• I have been testing EXIF extraction on files and wondering now, how efficient/useful it is to actually keep all around in the SBF. Even when 10 images, the number of elements can grow too much. Its not the size, but the fact that we have multiple levels, and to be honest, exif is already! carried around in the actual file, so wondering what elements (and how can be define/decide) are the ones we want to extract. Or we want to simply dump them directly into a file (like the flavors we did last year) and let solr deal with them? If so we need to finish that code (urgent)
• FIDO is ok, quite fast and won't take too much space.

The question i have now is how we can measure performance and impact. It most of the times not a server issue, but a UI issue when using the webforms/ajax, and still i don't know if that is even an issue or not. But i want to be able to provide people with options.

[giancarlobi]

@DiegoPino it could be on wednesday, is it ok for you?

[DiegoPino]

@giancarlobi i have a strange week ahead. Too many calls and teaching and meetings and development 😢 . Maybe we can start simply in the chat here and figure out a call closer to Friday? Also good afternoon for you!

[DiegoPino]

@giancarlobi i totally understand your workload so won't demand more from you that you share your thoughts and ideas here. Thanks!

[DiegoPino]

In the meantime: https://exiftool.org/TagNames/index.html
This is the list of all Tags (known). This are the ones i feel are safe to extract

AS a way of limiting the number of EXIF tags ( i got an image with over 300 today) i plan on using this

exiftool -json -q -a -gps:all -Common "-gps*" -xmp:all -ImageWidth -ImageHeight -Canon -Nikon-AllDates -pdf:all -MIMEType

[aksm]

Resolved by #87 and continued in #103.