Detect a corrupted index

Hi everyone !

So I am working on a Lucene index that will run on a server and since this
server might crash/be killed at any time, even during the creation of an
index, I would like to be able to detect if an index is corrupted or not. I
don't care about repairing it, rebuilding it from scratch doesn't take too
long.

Any idea or hint on how I should proceed ? I searched for related topics but
they all seemed old and don't apply to Lucene 4.3.1

Thanks in advance

Adrien