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Re: [jetty-users] RemoteEndpoint.sendString + ByteBuffer / bytes[]
Yes, I know. What I'm looking for is something like:

RemoteEndpoint.sendText(ByteBuffer/bytes, Callback)

where the buffer/bytes is/are already in UTF-8.

Thank you, Joakim.


On Mon, May 18, 2015 at 4:17 PM Joakim Erdfelt <joakim@xxxxxxxxxxx> wrote:
Sending raw bytes on the WebSocket remote might not make sense.

The RFC6455 mandates that messages consisting of TEXT (+ optional CONTINUATION) frames must be UTF-8 encoded.
We enforce that part of the spec simply by making sendString(String) the defined approach.

Using ByteBuffer or byte[] would be an attempt to send something that is without a declared encoding.
If we had a sendString(ByteBuffer) then we would have to convert to a String with UTF-8 encoding ourselves, at which point the send might fail due to a violation of the RFC for WebSocket.
Its easier to have this UTF8 conversion before the jetty implementation so that you can handle the UTF8 conversion in your own way (eg: do you fail? do you replace invalid sequences? if so, with what? do you drop failed sequences?)



--
Joakim Erdfelt <joakim@xxxxxxxxxxx>
Expert advice, services and support from from the Jetty & CometD experts

On Mon, May 18, 2015 at 5:57 AM, Edgar Espina <espina.edgar@xxxxxxxxx> wrote:
Hi,

 I need a sendString method on RemoteEndpoint that accepts a ByteBuffer/bytes[] as parameter, not just a String.

 I do have a JSON library that generates byte[] and today I have to wrap it as String to send a text message over the web socket.

 Not a big deal, but it will be nice to have.

Thanks


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