com.linkedin.r2.netty.handler.http2

Class Http2AlpnHandler

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.handler.ssl.ApplicationProtocolNegotiationHandler

com.linkedin.r2.netty.handler.http2.Http2AlpnHandler

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler

public class Http2AlpnHandler
extends io.netty.handler.ssl.ApplicationProtocolNegotiationHandler

Netty handler to configure a ChannelPipeline upon successful ALPN to H2 by SslHandler. If the ALPN is not resulted in H2 - the ALPN promise is marked is failed and that will notify the ALPN promise listener present in channel lifecycle.

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
Http2AlpnHandler(io.netty.channel.ChannelPromise alpnPromise, io.netty.handler.codec.http2.Http2Settings http2Settings)

Method Summary

Modifier and Type	Method and Description
void	channelInactive(io.netty.channel.ChannelHandlerContext ctx)
protected void	configurePipeline(io.netty.channel.ChannelHandlerContext ctx, java.lang.String protocol)
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, java.lang.Throwable cause)
protected void	handshakeFailure(io.netty.channel.ChannelHandlerContext ctx, java.lang.Throwable cause)

Methods inherited from class io.netty.handler.ssl.ApplicationProtocolNegotiationHandler

userEventTriggered

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelRead, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Constructor Detail

Http2AlpnHandler

public Http2AlpnHandler(io.netty.channel.ChannelPromise alpnPromise,
                        io.netty.handler.codec.http2.Http2Settings http2Settings)

Parameters:

alpnPromise - - The ChannelPromise created to track the status of ALPN. This handler Http2AlpnHandler is not responsible for setting up the required call backs. This is expected to be setup by the pipeline bootstrap code. This handler is only responsible for marking success or failure in ALPN stage.

http2Settings - - Http2 settings

Method Detail

configurePipeline

protected void configurePipeline(io.netty.channel.ChannelHandlerContext ctx,
                                 java.lang.String protocol)

Specified by:

configurePipeline in class io.netty.handler.ssl.ApplicationProtocolNegotiationHandler

handshakeFailure

protected void handshakeFailure(io.netty.channel.ChannelHandlerContext ctx,
                                java.lang.Throwable cause)

Overrides:

handshakeFailure in class io.netty.handler.ssl.ApplicationProtocolNegotiationHandler

channelInactive

public void channelInactive(io.netty.channel.ChannelHandlerContext ctx)

Specified by:

channelInactive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter

exceptionCaught

public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx,
                            java.lang.Throwable cause)

Specified by:

exceptionCaught in interface io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class io.netty.handler.ssl.ApplicationProtocolNegotiationHandler