[development] How to get Client ID or Client Name from Get object in coprocessor implementation

[Xu Cang]

Hi,
I am trying to implement a coprocessor and one info I'd like to get is
clientID or clientName for each Get op. I haven't found a place I can
retrieve this. Is this possible?

I am going to implement RegionObserver. The hook I refer to is this:

void preGetOp(ObserverContext<RegionCoprocessorEnvironment> c, Get get,
List<Cell> result)

>From this preGetOp method, I have only observerContext and 'Get' objects.
Is client ID in any of these data structures? If not, are thee other ways
to get that info?

Thanks,

Xu