IdleStateHandler

["Trustin Lee (이희승)"]

Hello Michael,

Yes, you have to insert it into the pipeline instead of extending it.
You seem to have found the answer already. :)

IdleStateEvent will be triggered by IdleStateHandler.  You can catch it
by modifying your handler (CommandHandler) to extend
IdleStateAwareChannelUpstreamHandler.

HTH,
Trustin

Michael Matthews wrote:
> I am trying to figure out what the correct way to use the 
> IdleStateHandler is. I want my
> client connections to timeout so I had my handler extend 
> IdleStateHandler rather than
> SimpleChannelUpstreamHandler. However, I found the connections were 
> timing out
> even if they were being used. It looks like I have to forward calls to 
> messageReceived to
> the IdleStateHandler class in order for the timeout to be reset.
> 
> Now I'm wondering if I should have added the IdleStateHandler separately 
> to the
> pipeline and add my handler afterwards modifying it to extend 
> SimpleChannelUpstreamHandler.
> 
> Currently my pipeline factory looks like:
> -------------------
>         ChannelPipeline p = Channels.pipeline();
>        
>         p.addLast("frameDecoder", new 
> LengthFieldBasedFrameDecoder(1048576, 0, 4, 0, 4));
>         p.addLast("protobufDecoder", new 
> ProtobufDecoder(Requests.Request.getDefaultInstance()));
> 
>         p.addLast("frameEncoder", new LengthFieldPrepender(4));
>         p.addLast("protobufEncoder", new ProtobufEncoder());
> 
>         p.addLast("pipelineExecutor", new ExecutionHandler(executor));
>         p.addLast("handler", new CommHandler(server));
>         return p;
> -----------------
> Where CommHandler is my sub-class of IdleStateHandler
> 
> I'm wondering if I should change it to something like:
> -----------------------
>         ChannelPipeline p = Channels.pipeline();
>        
>         p.addLast("frameDecoder", new 
> LengthFieldBasedFrameDecoder(1048576, 0, 4, 0, 4));
>         p.addLast("protobufDecoder", new 
> ProtobufDecoder(Requests.Request.getDefaultInstance()));
> 
>         p.addLast("frameEncoder", new LengthFieldPrepender(4));
>         p.addLast("protobufEncoder", new ProtobufEncoder());
> 
>         p.addLast("pipelineExecutor", new ExecutionHandler(executor));
>         p.addLast("handler", new IdleStateHandler(....));
>         p.addLast("handler", new CommHandler(server));
>         return p;
> ----------------------
> 
> Any thoughts? Does any of that make sense? I've only had half a cup of 
> coffee
> this morning so the brain is barely functioning.
> 
> 
> Michael Matthews
> 
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-- 
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