io.netty.handler.codec.mqtt

Class MqttEncoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.handler.codec.MessageToMessageEncoder<MqttMessage>

io.netty.handler.codec.mqtt.MqttEncoder

All Implemented Interfaces:

ChannelHandler

public class MqttEncoder
extends MessageToMessageEncoder<MqttMessage>

Encodes Mqtt messages into bytes following the protocl specification v3.1 as described here MQTTV3.1

Nested Class Summary

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

ChannelHandler.Sharable, ChannelHandler.Skip

Field Summary

Fields

Modifier and Type	Field and Description
static MqttEncoder	DEFAUL_ENCODER

Constructor Summary

Constructors

Constructor and Description
MqttEncoder()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	encode(ChannelHandlerContext ctx, MqttMessage msg, List<Object> out) Encode from one message to an other.

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

acceptOutboundMessage, write

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

bind, channelActive, channelInactive, channelRead, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, close, connect, deregister, disconnect, exceptionCaught, flush, handlerAdded, handlerRemoved, isSharable, read, userEventTriggered

Methods inherited from class java.lang.Object

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

Field Detail

DEFAUL_ENCODER

public static final MqttEncoder DEFAUL_ENCODER

Constructor Detail

MqttEncoder

public MqttEncoder()

Method Detail

encode

protected void encode(ChannelHandlerContext ctx,
          MqttMessage msg,
          List<Object> out)
               throws Exception

Description copied from class: MessageToMessageEncoder

Encode from one message to an other. This method will be called for each written message that can be handled by this encoder.

Specified by:

encode in class MessageToMessageEncoder<MqttMessage>

Parameters:

ctx - the ChannelHandlerContext which this MessageToMessageEncoder belongs to

msg - the message to encode to an other one

out - the List into which the encoded msg should be added needs to do some kind of aggragation

Throws:

Exception - is thrown if an error accour