select - Polling objects for data in Java -

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i have many packetconnection objects connected remote computers. each packetconnection has thread-safe (synchronized) read , write methods accept packets. other classes should not have access enclosed streams.

i connections' owner notified when packetconnection has data read (it can block until event; spinning cpu in while-loop unwanted). owner ask appropriate object read , return packet.

what idomatic way accomplish this?

use java nio access "selector" functionality tell sockets have data can read. socketchannel represents selectable socket. call select() on selector determine if of sockets readable; can provide selection time-out if necessary.


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