@GET
@Produces(SseFeature.SERVER_SENT_EVENTS)
public EventOutput getServerSentEvents() {
final EventOutput eventOutput = new EventOutput();
TASK_EXECUTOR.execute(
() -> {
try {
for (int i = 0; i < 10; i++) {
LOG.info("sleeping 100ms");
try {
Thread.sleep(100);
} catch (InterruptedException e1) {
// ignore
}
LOG.info("building outbound event #{}", i);
try {
// text/plain
eventOutput.write(
new OutboundEvent.Builder()
.name("text-version")
.mediaType(MediaType.TEXT_PLAIN_TYPE)
.data(String.class, "msg " + i)
.id(Integer.toString(i))
.build());
// application/json
eventOutput.write(
new OutboundEvent.Builder()
.mediaType(MediaType.APPLICATION_JSON_TYPE) //
.data(EventModel.class, new EventModel("msg", i)) //
.build());
} catch (IOException e) {
LOG.error("ioexc:", e);
}
}
} catch (Throwable t) {
LOG.error("oops: " + t + " " + t.getMessage());
t.printStackTrace();
} finally {
LOG.info(
"done sending 10 items - connection will close from server side but browser reopens");
try {
eventOutput.close();
} catch (IOException e) {
// ignore...
}
}
});
return eventOutput;
}
public void removeListener(int id, String key) {
// TODO Close the event output stream.
if (outputs.containsKey(id)) {
EventOutput oput = outputs.get(id).remove(key);
if (oput != null) {
try {
oput.close();
} catch (IOException e) {
System.out.println("State.java: Line 321 error");
}
}
} else {
// if
SseBroadcaster bdcast = listeners.remove(key);
if (bdcast != null) // Check if there is residue EventOutput in the
// broadcaster
{
bdcast.closeAll();
}
}
// Done
}