Categories: Custom Transformer Examples | Filter Custom Transformers | String Custom Transformers

CustomTester

From Fmepedia

This page contains a Custom Transformer created by an fmepedia user.
See the attached files list at the foot of this page for the zip file containing this custom transformer.

Created by: Mark Ireland

CustomTester is a transformer designed for a particular use - where an attribute is set to a value of "unset" it will be changed to a simple null value. The main component is a Grepper in preference to a Tester because the Grepper permits tests regardless of case, so it would find "unset", "UNSET" or "uNsEt".

It isn't a particularly complicated transformer, but it is a good example of sharing a published parameter.

Here's the custom transformer definition...