org.corfudb.infrastructure

Class ServerHandshakeHandler

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.ChannelDuplexHandler

org.corfudb.infrastructure.ServerHandshakeHandler

All Implemented Interfaces:

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

public class ServerHandshakeHandler
extends io.netty.channel.ChannelDuplexHandler

The ServerHandshakeHandler waits for the handshake message, validates and sends a response to the client. This reply contains its node id and current version of Corfu. Created by amartinezman on 12/11/17.

Nested Class Summary

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

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
ServerHandshakeHandler(UUID nodeId, String corfuVersion, String timeoutInSeconds) Creates a new ServerHandshakeHandler which will handle the handshake--initiated by a client on the server side.

Method Summary

Modifier and Type	Method and Description
void	channelActive(io.netty.channel.ChannelHandlerContext ctx) Channel event that is triggered when a new connected channel is created.
void	channelInactive(io.netty.channel.ChannelHandlerContext ctx) Channel event that is triggered when the channel is closed.
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, Object m) Read data from the Channel.
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause) Channel event that is triggered when an exception is caught.
void	write(io.netty.channel.ChannelHandlerContext ctx, Object msg, io.netty.channel.ChannelPromise promise) Channel event that is triggered when an outbound handler attempts to write into the channel.

Methods inherited from class io.netty.channel.ChannelDuplexHandler

bind, close, connect, deregister, disconnect, flush, read

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, userEventTriggered

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

ServerHandshakeHandler

public ServerHandshakeHandler(UUID nodeId,
                              String corfuVersion,
                              String timeoutInSeconds)

Creates a new ServerHandshakeHandler which will handle the handshake--initiated by a client on the server side.

Parameters:

nodeId - Current Server Node Identifier.

corfuVersion - Version of Corfu in Server Node.

Method Detail

channelRead

public void channelRead(io.netty.channel.ChannelHandlerContext ctx,
                        Object m)
                 throws Exception

Read data from the Channel.

Specified by:

channelRead in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class io.netty.channel.ChannelInboundHandlerAdapter

Parameters:

ctx - channel handler context

m - object received in inbound buffer

Throws:

Exception

channelActive

public void channelActive(io.netty.channel.ChannelHandlerContext ctx)
                   throws Exception

Channel event that is triggered when a new connected channel is created.

Specified by:

channelActive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelActive in class io.netty.channel.ChannelInboundHandlerAdapter

Parameters:

ctx - channel handler context

Throws:

Exception

channelInactive

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

Channel event that is triggered when the channel is closed.

Specified by:

channelInactive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter

Parameters:

ctx - channel handler context

Throws:

Exception

exceptionCaught

public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx,
                            Throwable cause)
                     throws Exception

Channel event that is triggered when an exception is caught.

Specified by:

exceptionCaught in interface io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class io.netty.channel.ChannelInboundHandlerAdapter

Parameters:

ctx - channel handler context

cause - exception cause

Throws:

Exception

write

public void write(io.netty.channel.ChannelHandlerContext ctx,
                  Object msg,
                  io.netty.channel.ChannelPromise promise)
           throws Exception

Channel event that is triggered when an outbound handler attempts to write into the channel.

Specified by:

write in interface io.netty.channel.ChannelOutboundHandler

Overrides:

write in class io.netty.channel.ChannelDuplexHandler

Parameters:

ctx - channel handler context

msg - message written into channel

promise - channel promise

Throws:

Exception