I think you will need to use an ExecuteScript processor to nicely format your data into attributes into the foo1=bar1 pattern. I'm assuming here that you cannot predict what the key names 'foo1', 'foo2', etc. will actually be. If you could predict those field names, an UpdateAttribute processor with a brute-force list of keys might be ok if you can handle the misses downstream using expressions with isEmpty() or something similar.
https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-scripting-nar/1.3.0/org.apache.nifi.processors.script.ExecuteScript/index.html Thanks, James On Mon, Jul 31, 2017 at 1:26 PM, wildo <willy.de...@moserit.com> wrote: > I am parsing a text file with semi-formatted data. I use the SplitContent > processor to get me each "block" of data- basically each object, and then > the ExtractText processor to get all the individual properties that will be > associated to that object. > > So I might have a flowfile with data: > > foo1: bar1 > foo2: bar2 > foo3: bar3 > > When I push that flowfile into the ExtractText processor (which has "Enable > repeating capture group" set to true) and run my capture group regex on it, > I'm left with dynamic, numerated attributes. If I call my dynamic attribute > "fields" then my flowfile attrs will have: > > fields.1 --> foo1 > fields.2 --> bar1 > fields.3 --> foo2 > fields.4 --> bar2 > fields.5 --> foo3 > fields.6 --> bar3 > > Now I'd like to push this flowfile into an UpdateAttribute and turn my > dynamic list into real, accessible attributes. The intention would then be > to go into an AttributesToJSON processor. > > The question is: how do I configure the UpdateAttribute processor to have a > new attribute of "foo1" using "fields.n" with a value of "bar1" using > "field.n+1" and then dynamically add the other five as well? > > It seems like the ability to store repeating capture groups as attributes > must imply that theirs a way to actually USE those attributes dynamically. > What am I missing here? > > > > -- > View this message in context: http://apache-nifi-developer- > list.39713.n7.nabble.com/Dynamic-attributes-on-repeating-capture-groups- > tp16540.html > Sent from the Apache NiFi Developer List mailing list archive at > Nabble.com. >
