Package io.netty.handler.codec.base64

Class Base64Encoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelOutboundHandlerAdapter

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

io.netty.handler.codec.base64.Base64Encoder

All Implemented Interfaces:

ChannelHandler, ChannelOutboundHandler

@Sharable
public class Base64Encoder
extends MessageToMessageEncoder<ByteBuf>

Encodes a ByteBuf into a Base64-encoded ByteBuf. A typical setup for TCP/IP would be:

 ChannelPipeline pipeline = ...;

 // Decoders
 pipeline.addLast("frameDecoder", new DelimiterBasedFrameDecoder(80, Delimiters.nulDelimiter()));
 pipeline.addLast("base64Decoder", new Base64Decoder());

 // Encoder
 pipeline.addLast("base64Encoder", new Base64Encoder());
 

Nested Class Summary

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

ChannelHandler.Sharable

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	breakLines
private final Base64Dialect	dialect

Constructor Summary

Constructors

Constructor	Description
Base64Encoder()
Base64Encoder(boolean breakLines)
Base64Encoder(boolean breakLines, Base64Dialect dialect)

Method Summary

Modifier and Type	Method	Description
protected void	encode(ChannelHandlerContext ctx, ByteBuf 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.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

Field Details

breakLines

private final boolean breakLines

dialect

private final Base64Dialect dialect

Constructor Details

Base64Encoder

public Base64Encoder()

Base64Encoder

public Base64Encoder(boolean breakLines)

Base64Encoder

public Base64Encoder(boolean breakLines,
 Base64Dialect dialect)

Method Details

encode

protected void encode(ChannelHandlerContext ctx,
 ByteBuf 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<ByteBuf>

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 aggregation

Throws:

Exception - is thrown if an error occurs