I am new to NIO and Netty framework.
I am developing the sample HTTP server using netty so I can handle thousands of clients connection asynchronously. I have used multiple handlers for encoding, decoding, aggregating and many.
When message received event occurred at one handler, then I pass it to next handler and so on.
For passing an even I have used ctx.sendUpstream(e) //ctx-ChannelHandlerContext, e-event
But going through the source code of the netty, I came across the another method handleUpstream(ctx, e)
I have tried to debug the netty source code, I am really confused between the usage of the sendUpstream()
and handleUpstream()
.
How they differ from each other?Which one I should use?