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From Niklas Therning <nik...@trillian.se>
Subject Re: Question: A Mina client connects to a http server
Date Wed, 02 Aug 2006 09:21:08 GMT
Paul Chen wrote:
> I'm modifying the mina proxy example, by moving the code
> of connecting to server from sessionOpened() into messageReceived().
> Because
> I want to determine which server to
> connect to based on the mesg received in  messageReceived().
> Attached is the modified ClientToProxyIoHandler.java
> The proxy server started ok w/ following dump to screen:
> ## ClientToProxyIoHandler>
> Listening on port 8081
> When hitting the server w/ a http request, it hangs here:
> ## ClientToProxyIoHandler.sessionCreated>
> Aug 2, 2006 1:29:51 AM org.slf4j.impl.JCLLoggerAdapter info
> ## ClientToProxyIoHandler.sessionOpened>
> If the code of server connecting is moved up to sessionOpened(),
> everything works fine.
> Thanks
You need to remove the line

session.setTrafficMask( TrafficMask.NONE );

from sessionCreated(). In the original example it's needed to prevent
messageReceived() from being called before we have established the proxy
to server connection. We could do without it but then we would need to
buffer any data received before the connection has been established.

You won't need the setTrafficMask() calls at all I think since you have
changed the code which connects to join on the ConnectFuture. Please
note that this may be less efficient since it blocks the thread until
the connection is established or fails.


Niklas Therning
Software Architect

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