Package org.bidib.jbidibc.netbidib.server

Class NetBidibServerHandler<T>

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.SimpleChannelInboundHandler<io.netty.buffer.ByteBuf>

org.bidib.jbidibc.netbidib.server.NetBidibServerHandler<T>

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler, org.bidib.jbidibc.messages.BidibMessagePublisher<T>

Direct Known Subclasses:

NetBidibServerHandlerByteArray

public abstract class NetBidibServerHandler<T>
extends io.netty.channel.SimpleChannelInboundHandler<io.netty.buffer.ByteBuf>
implements org.bidib.jbidibc.messages.BidibMessagePublisher<T>

Nested Class Summary

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

io.netty.channel.ChannelHandler.Sharable

Field Summary

Fields

Modifier and Type	Field	Description
protected io.netty.channel.ChannelHandlerContext	ctx
protected ScheduledExecutorService	localNodeDataWorkers
protected org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData	pairedPartner	The link data of the paired remote partner.
protected Object	pairedPartnerLock
protected org.bidib.jbidibc.messages.message.BidibResponseFactory	responseFactory
protected org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData	serverLinkData	The link data of the server partner (ourself).

Constructor Summary

Constructors

Constructor

Description

NetBidibServerHandler(io.netty.channel.group.ChannelGroup channelGroup, org.bidib.jbidibc.messages.HostAdapter<T> hostAdapter, String backendPortName, org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData serverLinkData, Consumer<NetBidibServerHandler<T>> lazyInitializationCallback, Function<org.bidib.jbidibc.messages.message.BidibMessageInterface,T> messageContentSupplier, RoleTypeEnum roleType, org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData pairedPartner)

Constructor

Method Summary

Modifier and Type	Method	Description
void	addRemoteConnectionListener(org.bidib.jbidibc.messages.ConnectionListener remoteConnectionListener)
void	channelRead0(io.netty.channel.ChannelHandlerContext ctx, io.netty.buffer.ByteBuf in)
void	channelReadComplete(io.netty.channel.ChannelHandlerContext ctx)
void	channelRegistered(io.netty.channel.ChannelHandlerContext ctx)
void	channelUnregistered(io.netty.channel.ChannelHandlerContext ctx)
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
protected boolean	handleLocalBidibUpResponse()
boolean	hasActiveConnection()	Returns true if currently an active connection exists.
protected void	performLazyInitialization()
protected boolean	processLocalBidibUpResponseFromBackend(org.bidib.jbidibc.messages.message.LocalBidibUpResponse localBidibUpResponse)	Process the LocalBidibUpResponse and publish LocalLinkMessage messages to the connected partner.
protected void	publishPairedStatus(io.netty.channel.ChannelHandlerContext ctx, int descriptor)
void	removeRemoteConnectionListener(org.bidib.jbidibc.messages.ConnectionListener remoteConnectionListener)
void	setPairingCallback(BiFunction<org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData,Integer,Boolean> pairingCallback)
void	setPairingStore(PairingStore pairingStore)

Methods inherited from class io.netty.channel.SimpleChannelInboundHandler

acceptInboundMessage, channelRead

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelInactive, 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 org.bidib.jbidibc.messages.BidibMessagePublisher

publishBidibMessage

Methods inherited from interface io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Field Detail

responseFactory

protected org.bidib.jbidibc.messages.message.BidibResponseFactory responseFactory

pairedPartnerLock

protected final Object pairedPartnerLock

pairedPartner

protected org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData pairedPartner

The link data of the paired remote partner.

serverLinkData

protected final org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData serverLinkData

The link data of the server partner (ourself).

ctx

protected io.netty.channel.ChannelHandlerContext ctx

localNodeDataWorkers

protected final ScheduledExecutorService localNodeDataWorkers

Constructor Detail

NetBidibServerHandler

public NetBidibServerHandler(io.netty.channel.group.ChannelGroup channelGroup,
                             org.bidib.jbidibc.messages.HostAdapter<T> hostAdapter,
                             String backendPortName,
                             org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData serverLinkData,
                             Consumer<NetBidibServerHandler<T>> lazyInitializationCallback,
                             Function<org.bidib.jbidibc.messages.message.BidibMessageInterface,T> messageContentSupplier,
                             RoleTypeEnum roleType,
                             org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData pairedPartner)

Constructor

Parameters:

channelGroup - the channel group to pool all TCP connections.

hostAdapter - the host adapter

backendPortName - the port identifier of the backend, e.g. COM8

serverLinkData - the server link data instance to use

Method Detail

handleLocalBidibUpResponse

protected boolean handleLocalBidibUpResponse()

addRemoteConnectionListener

public void addRemoteConnectionListener(org.bidib.jbidibc.messages.ConnectionListener remoteConnectionListener)

removeRemoteConnectionListener

public void removeRemoteConnectionListener(org.bidib.jbidibc.messages.ConnectionListener remoteConnectionListener)

setPairingStore

public void setPairingStore(PairingStore pairingStore)

performLazyInitialization

protected void performLazyInitialization()

channelRegistered

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

Specified by:

channelRegistered in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRegistered in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelUnregistered

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

Specified by:

channelUnregistered in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelUnregistered in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelRead0

public void channelRead0(io.netty.channel.ChannelHandlerContext ctx,
                         io.netty.buffer.ByteBuf in)

Specified by:

channelRead0 in class io.netty.channel.SimpleChannelInboundHandler<io.netty.buffer.ByteBuf>

setPairingCallback

public void setPairingCallback(BiFunction<org.bidib.jbidibc.messages.message.netbidib.NetBidibLinkData,Integer,Boolean> pairingCallback)

publishPairedStatus

protected void publishPairedStatus(io.netty.channel.ChannelHandlerContext ctx,
                                   int descriptor)
                            throws org.bidib.jbidibc.messages.exception.ProtocolException

Throws:

org.bidib.jbidibc.messages.exception.ProtocolException

processLocalBidibUpResponseFromBackend

protected boolean processLocalBidibUpResponseFromBackend(org.bidib.jbidibc.messages.message.LocalBidibUpResponse localBidibUpResponse)
                                                  throws org.bidib.jbidibc.messages.exception.ProtocolException

Process the LocalBidibUpResponse and publish LocalLinkMessage messages to the connected partner.

Parameters:

localBidibUpResponse - the localBidibUpResponse message received from the backend

Returns:

true: send the pairing status to the connected partner, false: don't send the pairing status to the connected partner

Throws:

org.bidib.jbidibc.messages.exception.ProtocolException - thrown if illegal message content is detected or processing of message failed.

channelReadComplete

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

Specified by:

channelReadComplete in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelReadComplete in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

exceptionCaught

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

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

Throws:

Exception

hasActiveConnection

public boolean hasActiveConnection()

Returns true if currently an active connection exists.

Returns:

channel group has an active connection