I am having a case in my current flow where i want to evaluate certain attributes in my flow file. This is current structure of my flowfilw:
{ Attribute1: Value Attribute2: Value . Attribute k: Value . }
(i) So say for example, evaluate if attribute 2 is an integer of length 9. If it isn't Set the value of Attribute k to 'not valid'.
What processor or a combination of processor (maximum of 2) can i use to do this? Also can you write the underlying Expression Language for the case i just mentioned as i am new to this technology and i need to get it done soon.