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Code Issues 1 Packages Projects Releases Wiki Activity

Add live packet to SSE item state connections (#3086)

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Signed-off-by: Dan Cunningham <dan@digitaldan.com>
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Dan Cunningham 2022-09-26 10:09:33 -07:00 committed by GitHub
parent 065e33f5ab
commit b808ea6d13
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1 changed files with 13 additions and 9 deletions
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bundles/org.openhab.core.io.rest.sse/src/main/java/org/openhab/core/io/rest/sse/SseResource.java
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@ -101,11 +101,13 @@ public class SseResource implements RESTResource, SsePublisher {
private static final String X_ACCEL_BUFFERING_HEADER = "X-Accel-Buffering";
public static final int ALIVE_INTERVAL_SECONDS = 10;
private final Logger logger = LoggerFactory.getLogger(SseResource.class);
private final ScheduledExecutorService scheduler = ThreadPoolManager
.getScheduledPool(ThreadPoolManager.THREAD_POOL_NAME_COMMON);
private final ScheduledFuture<?> cleanSubscriptionsJob;
private final ScheduledFuture<?> aliveEventJob;
private @Context @NonNullByDefault({}) Sse sse;
@ -120,12 +122,13 @@ public class SseResource implements RESTResource, SsePublisher {
this.executorService = Executors.newSingleThreadExecutor();
this.itemStatesEventBuilder = itemStatesEventBuilder;
cleanSubscriptionsJob = scheduler.scheduleWithFixedDelay(() -> {
logger.debug("Run clean SSE subscriptions job");
OutboundSseEvent outboundSseEvent = sse.newEventBuilder().name("event")
.mediaType(MediaType.APPLICATION_JSON_TYPE).data(new ServerAliveEvent()).build();
topicBroadcaster.send(outboundSseEvent);
}, 1, 2, TimeUnit.MINUTES);
aliveEventJob = scheduler.scheduleWithFixedDelay(() -> {
logger.debug("Sending alive event to SSE connections");
OutboundSseEvent aliveEvent = sse.newEventBuilder().name("alive").mediaType(MediaType.APPLICATION_JSON_TYPE)
.data(new AliveEvent()).build();
itemStatesBroadcaster.send(aliveEvent);
topicBroadcaster.send(aliveEvent);
}, 1, ALIVE_INTERVAL_SECONDS, TimeUnit.SECONDS);
}
@Deactivate
@ -133,7 +136,7 @@ public class SseResource implements RESTResource, SsePublisher {
itemStatesBroadcaster.close();
topicBroadcaster.close();
executorService.shutdown();
cleanSubscriptionsJob.cancel(true);
aliveEventJob.cancel(true);
}
@Override
@ -262,7 +265,8 @@ public class SseResource implements RESTResource, SsePublisher {
}
}
private static class ServerAliveEvent {
private static class AliveEvent {
public final String type = "ALIVE";
public final int interval = ALIVE_INTERVAL_SECONDS;
}
}