I believe what your asking for is possible, I am not very familiar with Spring though. Check out this commit for the base64encode/decode, lemme know if it helps you out.
https://github.com/apache/nifi/commit/6f1af31ff28f60d0eddbee5dafe909bc66cc9c71 On Tue, Jul 18, 2017 at 7:04 AM, hemantvsn <[email protected]> wrote: > Can NIFI expression language be used to evaluate custom functions. > > For instance, we need to invoke the function, > new org.bson.types.ObjectId().toHexString() > > and assign its output to our attribute, is it possible solely using EL? > Im drawing its parallel with SPEL (Spring expression language) > > http://docs.spring.io/autorepo/docs/spring-framework/4.0.0.RC2/spring- > framework-reference/html/expressions.html > > Eg: Class dateClass = > parser.parseExpression("T(java.util.Date)").getValue(Class.class); > > Class stringClass = > parser.parseExpression("T(String)").getValue(Class.class); > > > > > > -- > View this message in context: http://apache-nifi-developer- > list.39713.n7.nabble.com/NIFI-Expression-Language-to- > Evaluate-custom-function-tp16451.html > Sent from the Apache NiFi Developer List mailing list archive at > Nabble.com. > -- Joseph
