How to reliable and efficiently implement a string protocol

[ljohnston]

Assuming your messages only go from client to server then your client needs a
StringEncoder and the server needs to combine DelimiterBasedFrameDecoder and
StringDecoder. For example

client

...addLast("encoder", new StringEncoder(CharsetUtil.UTF_8));

server

...addLast("delimiter", new DelimiterBasedFrameDecoder(65535,
Delimiters.lineDelimiter());
...addLast("decoder", new StringDecoder(CharsetUtil.UTF_8));

By default the DelimiterBasedFrameDecoder will strip the line delimiters
from the message. There are alternative constructors which allow you specify
whether the delimiters should be stripped or not.

Cheers
Lee
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