org.jboss.netty.handler.codec.base64
Class Base64Decoder

java.lang.Object
  org.jboss.netty.handler.codec.oneone.OneToOneDecoder
      org.jboss.netty.handler.codec.base64.Base64Decoder

All Implemented Interfaces:

ChannelHandler, ChannelUpstreamHandler

@ChannelHandler.Sharable
public class Base64Decoder
extends OneToOneDecoder

Decodes a Base64-encoded ChannelBuffer or US-ASCII String into a ChannelBuffer. Please note that this decoder must be used with a proper FrameDecoder such as DelimiterBasedFrameDecoder if you are using a stream-based transport such as TCP/IP. A typical decoder 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());
 

Version:

$Rev: 2241 $, $Date: 2010-04-16 13:12:43 +0900 (Fri, 16 Apr 2010) $

Author:

The Netty Project, Trustin Lee

Nested Class Summary

Nested classes/interfaces inherited from interface org.jboss.netty.channel.ChannelHandler

ChannelHandler.Sharable

Constructor Summary

Base64Decoder()

Base64Decoder(Base64Dialect dialect)

Method Summary

protected Object

decode(ChannelHandlerContext ctx, Channel channel, Object msg) Transforms the specified received message into another message and return the transformed message.

Methods inherited from class org.jboss.netty.handler.codec.oneone.OneToOneDecoder

handleUpstream

Methods inherited from class java.lang.Object

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

Constructor Detail

Base64Decoder

public Base64Decoder()

Base64Decoder

public Base64Decoder(Base64Dialect dialect)

Method Detail

decode

protected Object decode(ChannelHandlerContext ctx,
                        Channel channel,
                        Object msg)
                 throws Exception

Description copied from class: OneToOneDecoder

Transforms the specified received message into another message and return the transformed message. Return null if the received message is supposed to be discarded.

Specified by:

decode in class OneToOneDecoder

Throws:

Exception