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Do not send empty alarm updated messages during creation of TS subscriptions

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This commit is contained in:
Volodymyr Babak 2021-10-08 13:26:41 +03:00
parent aee4163a04
commit 1f44d538ee
1 changed files with 3 additions and 1 deletions
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4
application/src/main/java/org/thingsboard/server/service/subscription/TbAlarmDataSubCtx.java
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@ -177,7 +177,9 @@ public class TbAlarmDataSubCtx extends TbAbstractDataSubCtx<AlarmDataQuery> {
alarm.getLatest().computeIfAbsent(keyType, tmp -> new HashMap<>()).putAll(latestUpdate);
return alarm;
}).collect(Collectors.toList());
wsService.sendWsMsg(sessionId, new AlarmDataUpdate(cmdId, null, update, maxEntitiesPerAlarmSubscription, data.getTotalElements()));
if (!update.isEmpty()) {
wsService.sendWsMsg(sessionId, new AlarmDataUpdate(cmdId, null, update, maxEntitiesPerAlarmSubscription, data.getTotalElements()));
}
} else {
log.trace("[{}][{}][{}][{}] Received stale subscription update: {}", sessionId, cmdId, subscriptionUpdate.getSubscriptionId(), keyType, subscriptionUpdate);
}