Hi Alexey,
This is really helpful! Many thanks to you!
Regards,
-Yi Bing
2008/6/16 Oleksiy Stashok <Oleksiy.Stashok_at_sun.com>:
> Hi Yi,
>
> you're right by default FilterChain is executed only when OP_READ is ready.
> You can change it by overriding default accept logic.
> Like example bellow:
>
> TCPSelectorHandler sh = new TCPSelectorHandler() {
> public boolean onAcceptInterest(SelectionKey key,
> Context ctx) throws IOException{
> SelectableChannel channel = acceptWithoutRegistration(key);
>
> if (channel != null) {
> configureChannel(channel);
> SelectionKey readKey =
> (1) channel.register(selector, SelectionKey.OP_READ |
> SelectionKey.OP_WRITE);
> readKey.attach(System.currentTimeMillis());
> }
> return false;
> }
> }
>
> at line (1) we register also for OP_WRITE operation.
>
> Hope this helps.
>
> WBR,
> Alexey.
>
>
>
> On Jun 15, 2008, at 14:45 , JianXing Yi wrote:
>
> Hi there,
>>
>> Think about RFC865, the quote of day protocol. The server sends the quote
>> of day to the client once accepted the client's connecting. I use a protocol
>> chain to implement the server. It seems that the server's protocol chain
>> executed only when it received data from client. In another word, the
>> server's protocol chain execution is triggered by a SelectionKey.OP_READ
>> event by default, I think. Can I change it to SelectionKey.OP_WRITE so that
>> the server could initiate the interaction with the client?
>>
>> The attached is the server's code. I tried it with the TELNET command
>> line. It showed that the command line has to input to initiate the
>> interaction, otherwise it could not get the push from the server.
>>
>> Any help is highly appreciated!
>>
>> Regards,
>> -Yi Bing
>>
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