net.solarnetwork.io.modbus.tcp.netty

Class TcpModbusMessageEncoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelOutboundHandlerAdapter

io.netty.handler.codec.MessageToMessageEncoder<net.solarnetwork.io.modbus.ModbusMessage>

net.solarnetwork.io.modbus.tcp.netty.TcpModbusMessageEncoder

All Implemented Interfaces:

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

public class TcpModbusMessageEncoder
extends io.netty.handler.codec.MessageToMessageEncoder<net.solarnetwork.io.modbus.ModbusMessage>

Encoder of ModbusMessage to TCP encapsulated ByteBuf Modbus frame.

Nested Class Summary

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

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
TcpModbusMessageEncoder(ConcurrentMap<Integer,TcpModbusMessage> pendingMessages) Constructor.
TcpModbusMessageEncoder(ConcurrentMap<Integer,TcpModbusMessage> pendingMessages, IntSupplier transactionIdSupplier) Constructor.

Method Summary

Modifier and Type	Method and Description
protected void	encode(io.netty.channel.ChannelHandlerContext ctx, net.solarnetwork.io.modbus.ModbusMessage msg, List<Object> out)

Methods inherited from class io.netty.handler.codec.MessageToMessageEncoder

acceptOutboundMessage, write

Methods inherited from class io.netty.channel.ChannelOutboundHandlerAdapter

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

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, exceptionCaught, 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

exceptionCaught, handlerAdded, handlerRemoved

Constructor Detail

TcpModbusMessageEncoder

public TcpModbusMessageEncoder(ConcurrentMap<Integer,TcpModbusMessage> pendingMessages)

Constructor.

Parameters:

pendingMessages - a mapping of transaction IDs to associated pendingMessages, to handle request and response pairing

Throws:

IllegalArgumentException - if any argument is null

TcpModbusMessageEncoder

public TcpModbusMessageEncoder(ConcurrentMap<Integer,TcpModbusMessage> pendingMessages,
                               IntSupplier transactionIdSupplier)

Constructor.

Parameters:

pendingMessages - a mapping of transaction IDs to associated pendingMessages, to handle request and response pairing

transactionIdSupplier - a TCP Modbus transaction ID supplier; only values from 1-65535 should be supplied

Throws:

IllegalArgumentException - if any argument is null

Method Detail

encode

protected void encode(io.netty.channel.ChannelHandlerContext ctx,
                      net.solarnetwork.io.modbus.ModbusMessage msg,
                      List<Object> out)
               throws Exception

Specified by:

encode in class io.netty.handler.codec.MessageToMessageEncoder<net.solarnetwork.io.modbus.ModbusMessage>

Throws:

Exception