OioDatagramChannelFactory for client and server?

[Trustin Lee]

I've just added ConnectionlessBootstrap so that you can continue using
Bootstrap when you transit from TCP to UDP for example.  Check the
updated QOTM example.  I hope you like it. :)

— Trustin Lee, http://gleamynode.net/

On Tue, Apr 21, 2009 at 11:59 AM, Trustin Lee <tlee at redhat.com> wrote:
> Now I see your point. :)
>
> ServerBootstrap is only useful for a server-side transport that
> creates a new child channel from a bound server channel by accepting
> an incoming connection attempt.
>
> A datagram socket works very differently from that - a single datagram
> channel accepts all packets from any remote address and therefore no
> child channel is created (i.e. one channel handles all clients).
> Consequently, DatagramChannel does not implement ServerChannel and
> neither does OioDatagramFactory.
>
> You can also convert a bound datagram channel into a connected
> datagram channel simply by calling Channel.connect(), which means a
> datagram channel can be either client-side and server-side channel at
> your will.  Hence, it's not possible to distinguish server-side
> datagram channel factory from client-side datagram channel factory
> because they creates the same type of channel.  Only what you do to
> the new channel determines if it becomes a client-side channel or a
> server-side channel.
>
> HTH,
>
> — Trustin Lee, http://gleamynode.net/
>
> On Mon, Apr 20, 2009 at 8:09 PM, hezjing <hezjing at gmail.com> wrote:
>> Hi Trustin
>> Yes, I have read the QOTM example and I have tried that with Netty 3.1
>> BETA1.
>> I was thinking that ServerBootstrap generic, and it is applicable for
>> all ChannelFactory.
>> In this case, I think the  ServerBootstrap is applicable with all
>> ChannelFactory except the DatagramChannelFactory?
>>
>> I think that is something worth to explain in the Javadoc
>> of ServerBootstrap(ChannelFactory).
>>
>> Thank you!
>>
>> On Mon, Apr 20, 2009 at 6:31 PM, Trustin Lee <tlee at redhat.com> wrote:
>>>
>>> You do not need to use ServerBootstrap for the UDP transport.  Could
>>> you please read the QOTM example?
>>>
>>> — Trustin Lee, http://gleamynode.net/
>>>
>>> On Mon, Apr 20, 2009 at 6:31 PM, hezjing <hezjing at gmail.com> wrote:
>>> > Hi
>>> > I'm trying to create a UDP server with Netty 3.1 BETA2, here is the code
>>> > snippet:
>>> >         ChannelFactory factory = new
>>> > OioDatagramChannelFactory(Executors.newCachedThreadPool());
>>> >         ServerBootstrap bootstrap = new ServerBootstrap(factory);
>>> >         ChannelPipeline pipeline = bootstrap.getPipeline();
>>> >         pipeline.addLast("logger", new LoggingHandler(true));
>>> >         ...
>>> >         Channel channel = bootstrap.bind(new
>>> > InetSocketAddress(listenPort));
>>> >
>>> > When run, it throws the following exception:
>>> > Exception in thread "main" java.lang.IllegalArgumentException: factory
>>> > must
>>> > be a ServerChannelFactory:
>>> > class org.jboss.netty.channel.socket.oio.OioDatagramChannelFactory
>>> >     at
>>> >
>>> > org.jboss.netty.bootstrap.ServerBootstrap.setFactory(ServerBootstrap.java:183)
>>> >     at org.jboss.netty.bootstrap.Bootstrap.<init>(Bootstrap.java:73)
>>> >     at
>>> >
>>> > org.jboss.netty.bootstrap.ServerBootstrap.<init>(ServerBootstrap.java:174)
>>> >
>>> > Do you have any idea of what could be the reason?
>>> >
>>> > On Wed, Apr 8, 2009 at 4:50 PM, Trustin Lee <tlee at redhat.com> wrote:
>>> >>
>>> >> On Wed, Apr 8, 2009 at 5:49 PM, Trustin Lee <tlee at redhat.com> wrote:
>>> >> > On Sat, Apr 4, 2009 at 5:06 PM, hezjing <hezjing at gmail.com> wrote:
>>> >> >> Hi
>>> >> >> The Javadoc explains that OioDatagramChannelFactory is to create
>>> >> >> a blocking
>>> >> >> I/O based UDP client.
>>> >> >>
>>> >> >> What should we use to create a UDP server?
>>> >> >
>>> >> > Actually, you can create a UDP client using
>>> >> > OioDatagramChannelFactory.
>>> >> >  It was a documentation mistake.  Please refer to the QOTM server
>>> >> > example.
>>> >>
>>> >> Oops.  Actually, you can create both UDP client and server using
>>> >> OioDatagramChannelFactory.  It was a documentation mistake.  Please
>>> >> refer to the QOTM server example.
>>> >>
>>> >> _______________________________________________
>>> >> netty-users mailing list
>>> >> netty-users at lists.jboss.org
>>> >> https://lists.jboss.org/mailman/listinfo/netty-users
>>> >
>>> >
>>> >
>>> > --
>>> >
>>> > Hez
>>> >
>>> > _______________________________________________
>>> > netty-users mailing list
>>> > netty-users at lists.jboss.org
>>> > https://lists.jboss.org/mailman/listinfo/netty-users
>>> >
>>> >
>>>
>>> _______________________________________________
>>> netty-users mailing list
>>> netty-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/netty-users
>>
>>
>>
>> --
>>
>> Hez
>>
>> _______________________________________________
>> netty-users mailing list
>> netty-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/netty-users
>>
>>
>