CODEWITHSUNDEEP
javajerseyserver-sent-events
pChip
pChip

Reputation: 405

Using sse broadcast with jersey, anyway to send an event to a specific EventOutput?

I have a Restful service where a user can get a new SSE broadcast. The code looks like this:

SseBroadcaster sseBroadcaster = new SseBroadcaster();

@GET
@Produces(SseFeature.SERVER_SENT_EVENTS)
@Path("/getEvent")
public EventOutput getSseOutput(@Context HttpServletResponse response) {

EventOutput eventOutput = new EventOutput();
sseBroadcaster.add(eventOutput);

return eventOutput;
}

What I'd like to do is when a new EventOutput is added to the broadcaster, send a welcome message to that EventOutput. However, everyone already listening to the broadcaster will also receive the message. Does anybody know of a way to send an event to a specific EventOutput?

Upvotes: 2

Views: 1418

Answers (1)

Darren Cook
Darren Cook

Reputation: 28928

You call eventOutput.write(event);, where event is an object of OutboundEvent.

Making the OutboundEvent appears to require a rather tedious builder class. See the example in the documentation. I believe this is the minimum code to send a welcome message:

final OutboundEvent.Builder eventBuilder = new OutboundEvent.Builder();
eventBuilder.data(String.class, "Welcome!");
final OutboundEvent event = eventBuilder.build();
eventOutput.write(event);

Upvotes: 2

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