Hi, back to "SSE".
i just pushed on github this small project: https://github.com/rmannibucau/cdi-tomcat-sse Including it you can: 1) define your Server (the class managing connections) -> simply extend SSEWebSocket it basically looks like: @WebServlet(urlPatterns = "/my-sse-endpoint") public class SSEImpl extends SSEWebSocket {} but some more hooks are available (see https://github.com/rmannibucau/cdi-tomcat-sse/blob/master/src/test/java/com/github/rmannibucau/sse/test/SSEImpl.java) 2) use SSESender class to broadcast to connected client some data @Inject @SSE("/my-sse-endpoint") private SSESender sse; sse.sendMessage("In message\r\n"); *3) *the javascript part is a websocket one (the url is not the right one but basic stuff is here): https://github.com/rmannibucau/cdi-tomcat-sse/blob/master/src/test/resources/index.html That's not a real SSE (we don't use EventSource in js and text/event-stream on server side) but it does the job. Implementing a real SSE is finally not so hard. I started to work on it then wonder which abstraction could really be needed. The drawback of SSE through servlets is you get a servlet connection/client. If you have any idea feel free to fork/submit them. Currently it doesn't need TomEE for anything else than tests but we could think to go further if we find good reasons ;). Why i chose to avoid it today was the fact WebSocket are still young and their API can change. *Romain Manni-Bucau* *Twitter: @rmannibucau* *Blog: http://rmannibucau.wordpress.com* 2012/9/6 Romain Manni-Bucau <[email protected]> > Maybe create another thread with details on your apps and your needs. > > Side note: ear are not managed the same way between containers and all > have drawbacks (compared to war which are closer) > Le 5 sept. 2012 23:06, "Luca Merolla" <[email protected]> a écrit : > > It would be cool. I need to find the time though :( >> >> I was looking for some inspiration for the issue that I'm having with the >> EJB.jar that needs to call another EJB placed inside a WAR. >> Still I haven't get it to work on TomEE, while it was working on JBoss. >> >> That's why I finished looking on that topic. If I will came up with >> something that can be useful for both my project and tomee, I would be >> glad >> to share it. >> >> On Wed, Sep 5, 2012 at 1:41 PM, Romain Manni-Bucau <[email protected] >> >wrote: >> >> > Yeah, wonder if it should be in tomee, atmosphere, other. >> > >> > Btw the code is pretty easy so we can in a first time host it i think. >> > >> > Do you want to give it a try? >> > Le 5 sept. 2012 13:37, "Luca Merolla" <[email protected]> a écrit >> : >> > >> > > It looks close to some features provided by atmosphere, in fact >> > atmosphere >> > > does support SSE transport. >> > > >> > > Yes, I read somewhere it is going to be a CDI extension. >> > > >> > > The interesting thing is what you can do with the CDI annotations. You >> > can >> > > very easily produce something like this: >> > > >> > > @Startup >> > > @Stateless >> > > public class SimpleEvent { >> > > >> > > @Inject @ServerSentEventContext("/simple") >> > > ServerSentEventHandlerContext<MySimpleHandler> simpleHandlers; >> > > >> > > @Schedule(hour="*", minute="*", second="*/10") >> > > public void sendDate() { >> > > for(MySimpleHandler handler : simpleHandlers.getHandlers()) { >> > > handler.sendMessage(new Date().toString()); >> > > } >> > > } >> > > } >> > > >> > > In case of Tomcat with WebSocket instead of MySimpleHandler we would >> have >> > > something that extends MessageInbound and inside the for cycle >> > > handler.getWsOutbound().writeTextMessage(...) >> > > >> > > >> > > On Wed, Sep 5, 2012 at 12:40 PM, Romain Manni-Bucau >> > > <[email protected]>wrote: >> > > >> > > > Currently not but looks pretty close to atmosphere, no? >> > > > >> > > > Since it islinked to cdi it should be an extension to cdi and maybe >> not >> > > > sthg brought by the container. >> > > > >> > > > Wdyt? >> > > > Le 5 sept. 2012 11:03, "Luca Merolla" <[email protected]> a >> > écrit : >> > > > >> > > > > An example is shown here: >> > > > > >> > > > > >> > > > > >> > > > >> > > >> > >> http://weblogs.java.net/blog/bhaktimehta/archive/2012/04/21/server-sent-events-sample-glassfish >> > > > > >> > > > > On Wed, Sep 5, 2012 at 11:02 AM, Luca Merolla < >> > [email protected] >> > > > > >wrote: >> > > > > >> > > > > > Hi, >> > > > > > >> > > > > > I was just wondering if we have something similar to >> > > > > @ServerSentEventContext >> > > > > > annotation in TomEE. >> > > > > > It would be nice to have it, combined with the fact that TomEE >> > ships >> > > > the >> > > > > > latest Tomcat which does support WebSocket can be a very cool >> > feature >> > > > > IMHO. >> > > > > > >> > > > > > Luca >> > > > > > >> > > > > >> > > > > >> > > > > >> > > > > -- >> > > > > *Luca Merolla* >> > > > > Management, Business & Technology Consultant >> > > > > >> > > > > >> > > > > <http://maps.google.com/maps?q=&hl=en> *Mobile:* +393774569974 >> > > > > *Email:* [email protected] >> > > > > *http://nl.linkedin.com/in/lucamerolla* >> > > > > *Blog <http://lucamerolla.wordpress.com>* >> > > > > >> > > > > >> > > > > Merolla Consulting Limited >> > > > > >> > > >> > >> >
