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!act #15626 expose DatagramChannel creation in DatagramChannelCreator

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* move channel creation logic to a separate trait
* new Java API: AbstractSocketOption
This commit is contained in:
Martynas Mickevicius 2014-08-19 14:02:23 +03:00
parent eb766d49f3
commit 325e05ee27
12 changed files with 466 additions and 6 deletions
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21
akka-docs/rst/java/io-udp.rst
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@ -83,3 +83,24 @@ the biggest difference is the absence of remote address information in
in the case of connection-based UDP the security check is cached after
connect, thus writes do not suffer an additional performance penalty.
UDP Multicast
------------------------------------------
If you want to use UDP multicast you will need to use Java 7. Akka provides
a way to control various options of ``DatagramChannel`` through the
``akka.io.Inet.SocketOption`` interface. The example below shows
how to setup a receiver of multicast messages using IPv6 protocol.
To select a Protocol Family you must extend ``akka.io.Inet.DatagramChannelCreator``
class which implements ``akka.io.Inet.SocketOption``. Provide custom logic
for opening a datagram channel by overriding :meth:`create` method.
.. includecode:: ../../../akka-samples/akka-docs-udp-multicast/src/main/java/docs/io/JavaUdpMulticast.java#inet6-protocol-family
Another socket option will be needed to join a multicast group.
.. includecode:: ../../../akka-samples/akka-docs-udp-multicast/src/main/java/docs/io/JavaUdpMulticast.java#multicast-group
Socket options must be provided to :meth:`UdpMessage.bind` command.
.. includecode:: ../../../akka-samples/akka-docs-udp-multicast/src/main/java/docs/io/JavaUdpMulticast.java#bind