I found the code for it that inserts those like they were attributed in
ValueLookup. To further confuse it some processors appear to set an attribute
of that name.
Thanks for explaining that I was a bit confused.
Shawn Weeks
Sent from my iPhone
On Feb 26, 2019, at 10:54 AM, Mark Payne
Shawn,
I think it is presented that way in the given link because it is accessed via
the Expression Language by using ${fileSize} - the same as if it were an
attribute.
So from the point of view of the user/flow designer, they can be assumed to be
the same. However, from the POV of a developer
Shawn,
Searching the codebase, I couldn't really find (m)any places where
"fileSize" is set as a flow file attribute. It is available via the UI
(which I presume calls flowFile.getSize()) as well as in provenance
events (again populated by flowFile.getSize() not an attribute per
se). That
fileSize is listed as a default attribute for a flow file along with uuid and
filename. It always seems to be populated in a real workflow. It’s also listed
here
https://docs.hortonworks.com/HDPDocuments/HDF3/HDF-3.1.1/bk_getting-started-with-apache-nifi/content/common-attributes.html
and
Hi Shawn,
filename and uuid are attributes of the FlowFile. There's no fileSize attribute
(unless added explicitly by a processor). You can get the size of a FlowFile by
calling FlowFile.getSize()
Does that help?
Thanks
-Mark
> On Feb 26, 2019, at 11:20 AM, Shawn Weeks wrote:
>
> Since
