Mongo connection/status check with Java driver

[jdr2000]

What would the preferred way to check the status of Mongo connection
(to a single or a replica set), using the Java driver? Ideally just a
Boolean type, something like "active?" in the Ruby driver.

[Eliot Horowitz]

What exactly do you mean by status?
A Mongo instance internally has a connection pool and manages the
connections to make sure they are healthy.

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[jdr2000]

Just that the client connection to the cluster is active/responsive.
It could be as simple as a findOne call, or more like a nop. But I'm
figuring there's something in the driver that has been designed for
this purpose (maybe not?).

[jdr2000]

I believe I solved this myself. My client app's
"isConnectedToMongo()" method performs as simple
db.getCollectionNames() call on the current database. If there are no
MongoExceptions, the method returns true, else the exception is caught
and returns false.

Other calls like db.getLastError() or db.isAuthenticated() would
probably work for my purposes, too.