question Re: How to parse the NiFi filename attribute that has embedded directory information ( a/b/c/file.log ) and extract only the file name (file.log) using expression language and possibly UpdateAttribute processor? in Archives of Support Questions (Read Only)

How to parse the NiFi filename attribute that has embedded directory information ( a/b/c/file.log ) and extract only the file name (file.log) using expression language and possibly UpdateAttribute processor?

guha — Thu, 04 May 2017 23:18:57 GMT

MattWho — Thu, 04 May 2017 23:29:22 GMT

You would certainly use the UpdateAttribute processor to do this and a NiFi expression language statement as follows :

${filename:substringAfterLast('/')}

Thanks,

Matt

bbende — Thu, 04 May 2017 23:30:37 GMT

There is an expression language guide here:

For your example you should be able to create an UpdateAttribute processor and add a new property like:

myfilename = ${filename:substringAfterLast('/')}