JAVA and how to execute user-code

Question

Hello. I am building a tool which should do a diagnosis based on some values... It should be user extensible so hardcoding the conditions isnt a solution...

Suppose that we have a blood test...

example ... WBC , ALDO ... And i want the user to be able to write somehow scripts

if (WBC.between(4,10) && ALDO.greater(5) || SOMETHINGELESE.isTrue()) ..... diagnosis="MPLAMPLA"...

The problem is 1)Write my parser 2)Or try to find something that executes user conditionals at runtime and customize it.. 3)another way

Please help,ideas needed!

Answer 1

1. Use scripting (you can use javascript, bsh, groovy, etc). See tutorial here
2. Use workflow engine, e.g. jBPM

Answer 2

Thank you man!!! There are so many things to learn!...