netty client mapping
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I have a netty **web socket server** running to which various native javascript clients connect. Now what I want to do is to get requests for data from the clients and pass back data according to what each client requested. There is a `class A` that actually needs to send continuous data asynchronously(ie: not a simple request reply model)to the client according to the request. 

The question is how do at class A , I have all the data that I need to send but how to figure out which data has to be sent to which client(has to be according to the client requests) , ie: how do I map the client requests , data to be sent from class A and the channel over which the data needs to be sent from class A.(I store all the channels in a `shared ChannelGroup`).