In one of the projects we used Netty to implement Gateway(Router). It was 
implemented using version 3.x. 
We have extensively used Events for Handlers. For example Deserialize event 
for Deserialize Handler, Business Logic event for Business Handler so on. 
These events wrapped lots of information that was used across handlers. 
Also between Server pipeline and client pipeline (client pipeline to 
connect to downstream applications)
Question: 
1. Going to Netty 4, how do i minimally change and keep the events as 
objects that can still be shared across handlers and keep all the 
information I needed. I don't want to loose the nice buffer support and 
less object creation that comes with Netty 4. Any suggestion are welcome. 
2. Is there a way to keep the context per message? For example, every http 
message that is incoming i want to keep a context across pipeline. I want 
to be able to use this context for both server pipeline and client pipeline


thanks
svn

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