How to programmatically detect Endeca indexing is successful (from ATG) to send an email?

The requirement is that once the Baseline Index is successful, an email has to be sent to an admin automatically.

Is there any out-of-the-box feature available in ATG Endeca integration? If not, how to achieve this functionality?

Figured it out myself.

Extend SimpleIndexingAdmin class and override indexBaseline() method.