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Re: [jetty-users] WebSockets: Specific Client Message
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Hi,
On Tue, Jan 10, 2012 at 19:37, Hendrik Schenk <hschenk@xxxxxxx> wrote:
> Ok, so far. That is what i use already ;)
>
> But i get a problem with this example, if i use multiple clients
> respectively parallel requests/connections .
>
> If two or more clients connect to the server and the server answers, each
> client get all answers.
>
> For example:
>
> Client 1 sends "hello"
> Client 2 sends "world" (at the same time)
>
> Client 1 gets hello world or world hello
> Client 2 gets the same.
>
>
> I solved the problem by avoiding "private final Set<ChatWebSocket> _members
> = new CopyOnWriteArraySet<ChatWebSocket>();" in my Servlet-Class and in my
> Server-Class. Where is that good for?!?! I do not understand it.
It's a single room chat: if a client sends a message, all other
clients must receive it.
That's why the example is iterating over the _members in onMessage().
If you want to reply (and not broadcast), just use the Connection
object to reply to the client that sent the message.
Simon
--
http://cometd.org
http://intalio.com
http://bordet.blogspot.com
----
Finally, no matter how good the architecture and design are,
to deliver bug-free software with optimal performance and reliability,
the implementation technique must be flawless. Victoria Livschitz
