package Ġio . ely tra . sdk . network . pipeline Ċ Ċ import Ġcom . flow powered . network . ConnectionManager Ċ import Ġcom . flow powered . network . Message Ċ import Ġio . ely tra . sdk . network . Network Session Ċ import Ġio . netty . channel . Channel HandlerContext Ċ import Ġio . netty . channel . Simple Channel Inbound Handler Ċ import Ġjava . util . concurrent . atomic . Atomic Reference Ċ Ċ class ĠMessage Handler ( ĊĠĠĠĠĠĠĠ Ġprivate Ġval Ġsession : ĠAtomic Reference < Network Session ?> Ġ= ĠAtomic Reference ( null ), ĊĠĠĠĠĠĠĠ Ġprivate Ġval Ġconnection Manager : ĠConnection Manager Ċ ) Ġ: ĠSimple Channel Inbound Handler < Message >() Ġ{ ĊĊ ĉ override Ġfun Ġchannel Read 0 ( ctx : ĠChannel HandlerContext , Ġmsg : ĠMessage ) Ġ{ Ċĉ ĉ println ("[ DEBUG ] Ġ$ msg ") Ċĉ ĉ session . get ()?. message Received ( msg ); Ċ ĉ } ĊĊ ĉ override Ġfun Ġchannel Active ( ctx : ĠChannel HandlerContext ?) Ġ{ Ċĉ ĉ val Ġchannel Ġ= Ġctx ?. channel () Ċĉ ĉ val Ġnew Session Ġ= Ġconnection Manager . new Session ( channel ) Ġas ĠNetwork Session ĊĊĉ ĉ if Ġ(! session . compare AndSet ( null , Ġnew Session )) Ġ{ Ċĉĉ ĉ throw ĠIllegalStateException (" Session Ġmay Ġnot Ġbe Ġset Ġmore Ġthan Ġonce "); Ċĉ ĉ } ĊĊĉ ĉ new Session . on Ready () Ċ ĉ } ĊĊ ĉ override Ġfun Ġchannel Inactive ( ctx : ĠChannel HandlerContext ?) Ġ{ Ċĉ ĉ session . get ()?. on Disconnect (); Ċ ĉ } ĊĊ ĉ override Ġfun Ġexception Ca ught ( ctx : ĠChannel HandlerContext ?, Ġcause : ĠThrowable ?) Ġ{ Ċĉ ĉ session . get ()?. on Inbound Throwable ( cause ); Ċ ĉ } Ċ } Ċ