Tim,
Sorry I lost track of this, I meant to respond earlier. If you can use
a tool/language that brings in dependencies easily, such as Groovy,
then using NiFi Expression Language to evaluate expressions is fairly
straightforward, here's a Groovy script I use to do just that (the
extra gravy is for CLI users):
@Grab(group='org.apache.nifi', module='nifi-expression-language',
version='1.9.1')
import org.apache.nifi.attribute.expression.language.*
def cli = new CliBuilder(usage:'groovy testEL.groovy [options] [expressions]',
header:'Options:')
cli.help('print this message')
cli.D(args:2, valueSeparator:'=', argName:'attribute=value',
'set value for given attribute')
def options = cli.parse(args)
if(!options.arguments()) {
cli.usage()
return 1
}
def attrMap = [:]
def currKey = null
options.Ds?.eachWithIndex {o,i ->
if(i%2==0) {
currKey = o
} else {
attrMap[currKey] = o
}
}
options.arguments()?.each {
def q = Query.compile(it)
println q.evaluate(attrMap ?: null)
}
Regards,
Matt
On Thu, Mar 21, 2019 at 5:42 PM Tim Zimmerman <[email protected]> wrote:
>
> Sorry for the delay in responding.
> After looking at a few different options it looks like it will be pretty
> easy to accomplish what we need using Java Unified Expression Language
> <http://juel.sourceforge.net/> .
>
>
>
>
>
> --
> Sent from: http://apache-nifi-users-list.2361937.n4.nabble.com/
