EventListener for committer

[FcrbPeter]

Hi Pascal,

I made my own collector / crawler lifecycle event listener to implement extra monitoring feature for my usage and it works fine.

I am also want to collect the committer status, such as "how many documents is going to commit" and "how many documents have been committed", etc.

Is there a way to achieve it?

[essiembre]

If you are extending AbstractBatchCommitter, you can overwrite commitBatch to find out how many items are to be committed before calling super().