Alarm asignee updates

application/src/main/java/org/thingsboard/server/service/queue/DefaultTbCoreConsumerService.java

@@ -26,7 +26,6 @@ import org.thingsboard.common.util.JacksonUtil;
 import org.thingsboard.common.util.ThingsBoardThreadFactory;
 import org.thingsboard.server.actors.ActorSystemContext;
 import org.thingsboard.server.common.data.alarm.Alarm;
-import org.thingsboard.server.common.data.alarm.AlarmInfo;
 import org.thingsboard.server.common.data.id.DeviceId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.rpc.RpcError;
@@ -36,6 +35,7 @@ import org.thingsboard.server.common.msg.queue.ServiceType;
 import org.thingsboard.server.common.msg.queue.TbCallback;
 import org.thingsboard.server.common.msg.rpc.FromDeviceRpcResponse;
 import org.thingsboard.server.common.stats.StatsFactory;
+import org.thingsboard.server.common.data.alarm.AlarmAssigneeUpdate;
 import org.thingsboard.server.service.security.auth.jwt.settings.JwtSettingsService;
 import org.thingsboard.server.queue.util.DataDecodingEncodingService;
 import org.thingsboard.server.dao.tenant.TbTenantProfileCache;
@@ -503,7 +503,9 @@ public class DefaultTbCoreConsumerService extends AbstractConsumerService<ToCore
             subscriptionManagerService.onAlarmUpdate(
                     TenantId.fromUUID(new UUID(proto.getTenantIdMSB(), proto.getTenantIdLSB())),
                     TbSubscriptionUtils.toEntityId(proto.getEntityType(), proto.getEntityIdMSB(), proto.getEntityIdLSB()),
-                    JacksonUtil.fromString(proto.getAlarm(), Alarm.class),callback);
+                    JacksonUtil.fromString(proto.getAlarm(), Alarm.class),
+                    JacksonUtil.fromString(proto.getAssignee(), AlarmAssigneeUpdate.class),
+                    callback);
         } else if (msg.hasAlarmDelete()) {
             TbAlarmDeleteProto proto = msg.getAlarmDelete();
             subscriptionManagerService.onAlarmDeleted(

application/src/main/java/org/thingsboard/server/service/subscription/DefaultSubscriptionManagerService.java

@@ -26,7 +26,6 @@ import org.thingsboard.server.cluster.TbClusterService;
 import org.thingsboard.server.common.data.DataConstants;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.alarm.Alarm;
-import org.thingsboard.server.common.data.alarm.AlarmInfo;
 import org.thingsboard.server.common.data.id.DeviceId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
@@ -41,6 +40,7 @@ import org.thingsboard.server.common.data.kv.TsKvEntry;
 import org.thingsboard.server.common.msg.queue.ServiceType;
 import org.thingsboard.server.common.msg.queue.TbCallback;
 import org.thingsboard.server.common.msg.queue.TopicPartitionInfo;
+import org.thingsboard.server.common.data.alarm.AlarmAssigneeUpdate;
 import org.thingsboard.server.dao.attributes.AttributesService;
 import org.thingsboard.server.dao.timeseries.TimeseriesService;
 import org.thingsboard.server.gen.transport.TransportProtos.LocalSubscriptionServiceMsgProto;
@@ -269,7 +269,7 @@ public class DefaultSubscriptionManagerService extends TbApplicationEventListene
                 updateDeviceInactivityTimeout(tenantId, entityId, attributes);
             } else if (TbAttributeSubscriptionScope.SHARED_SCOPE.name().equalsIgnoreCase(scope) && notifyDevice) {
                 clusterService.pushMsgToCore(DeviceAttributesEventNotificationMsg.onUpdate(tenantId,
-                                new DeviceId(entityId.getId()), DataConstants.SHARED_SCOPE, new ArrayList<>(attributes))
+                        new DeviceId(entityId.getId()), DataConstants.SHARED_SCOPE, new ArrayList<>(attributes))
                         , null);
             }
         }
@@ -293,7 +293,7 @@ public class DefaultSubscriptionManagerService extends TbApplicationEventListene
     }
 
     @Override
-    public void onAlarmUpdate(TenantId tenantId, EntityId entityId, Alarm alarm, TbCallback callback) {
+    public void onAlarmUpdate(TenantId tenantId, EntityId entityId, Alarm alarm, AlarmAssigneeUpdate assignee, TbCallback callback) {
         onLocalAlarmSubUpdate(entityId,
                 s -> {
                     if (TbSubscriptionType.ALARMS.equals(s.getType())) {
@@ -303,14 +303,13 @@ public class DefaultSubscriptionManagerService extends TbApplicationEventListene
                     }
                 },
                 s -> alarm.getCreatedTime() >= s.getTs() || alarm.getAssignTs() >= s.getTs(),
-                s -> alarm,
-                false
+                alarm, assignee, false
         );
         callback.onSuccess();
     }
 
     @Override
-    public void onAlarmDeleted(TenantId tenantId, EntityId entityId, Alarm alarmInfo, TbCallback callback) {
+    public void onAlarmDeleted(TenantId tenantId, EntityId entityId, Alarm alarm, TbCallback callback) {
         onLocalAlarmSubUpdate(entityId,
                 s -> {
                     if (TbSubscriptionType.ALARMS.equals(s.getType())) {
@@ -319,9 +318,8 @@ public class DefaultSubscriptionManagerService extends TbApplicationEventListene
                         return null;
                     }
                 },
-                s -> alarmInfo.getCreatedTime() >= s.getTs(),
-                s -> alarmInfo,
-                true
+                s -> alarm.getCreatedTime() >= s.getTs(),
+                alarm, null, true
         );
         callback.onSuccess();
     }
@@ -355,7 +353,7 @@ public class DefaultSubscriptionManagerService extends TbApplicationEventListene
                 deleteDeviceInactivityTimeout(tenantId, entityId, keys);
             } else if (TbAttributeSubscriptionScope.SHARED_SCOPE.name().equalsIgnoreCase(scope) && notifyDevice) {
                 clusterService.pushMsgToCore(DeviceAttributesEventNotificationMsg.onDelete(tenantId,
-                                new DeviceId(entityId.getId()), scope, keys), null);
+                        new DeviceId(entityId.getId()), scope, keys), null);
             }
         }
         callback.onSuccess();
@@ -415,20 +413,21 @@ public class DefaultSubscriptionManagerService extends TbApplicationEventListene
     private void onLocalAlarmSubUpdate(EntityId entityId,
                                        Function<TbSubscription, TbAlarmsSubscription> castFunction,
                                        Predicate<TbAlarmsSubscription> filterFunction,
-                                       Function<TbAlarmsSubscription, Alarm> processFunction,
+                                       Alarm alarm, AlarmAssigneeUpdate assignee,
                                        boolean deleted) {
         Set<TbSubscription> entitySubscriptions = subscriptionsByEntityId.get(entityId);
+        if (alarm == null) {
+            log.warn("[{}] empty alarm update!", entityId);
+            return;
+        }
         if (entitySubscriptions != null) {
             entitySubscriptions.stream().map(castFunction).filter(Objects::nonNull).filter(filterFunction).forEach(s -> {
-                Alarm alarm = processFunction.apply(s);
-                if (alarm != null) {
-                    if (serviceId.equals(s.getServiceId())) {
-                        AlarmSubscriptionUpdate update = new AlarmSubscriptionUpdate(s.getSubscriptionId(), alarm, deleted);
-                        localSubscriptionService.onSubscriptionUpdate(s.getSessionId(), update, TbCallback.EMPTY);
-                    } else {
-                        TopicPartitionInfo tpi = notificationsTopicService.getNotificationsTopic(ServiceType.TB_CORE, s.getServiceId());
-                        toCoreNotificationsProducer.send(tpi, toProto(s, alarm, deleted), null);
-                    }
+                if (serviceId.equals(s.getServiceId())) {
+                    AlarmSubscriptionUpdate update = new AlarmSubscriptionUpdate(s.getSubscriptionId(), alarm, assignee, deleted);
+                    localSubscriptionService.onSubscriptionUpdate(s.getSessionId(), update, TbCallback.EMPTY);
+                } else {
+                    TopicPartitionInfo tpi = notificationsTopicService.getNotificationsTopic(ServiceType.TB_CORE, s.getServiceId());
+                    toCoreNotificationsProducer.send(tpi, toProto(s, alarm, assignee, deleted), null);
                 }
             });
         } else {
@@ -559,22 +558,25 @@ public class DefaultSubscriptionManagerService extends TbApplicationEventListene
         });
 
         ToCoreNotificationMsg toCoreMsg = ToCoreNotificationMsg.newBuilder().setToLocalSubscriptionServiceMsg(
-                        LocalSubscriptionServiceMsgProto.newBuilder().setSubUpdate(builder.build()).build())
+                LocalSubscriptionServiceMsgProto.newBuilder().setSubUpdate(builder.build()).build())
                 .build();
         return new TbProtoQueueMsg<>(subscription.getEntityId().getId(), toCoreMsg);
     }
 
-    private TbProtoQueueMsg<ToCoreNotificationMsg> toProto(TbSubscription subscription, Alarm alarm, boolean deleted) {
+    private TbProtoQueueMsg<ToCoreNotificationMsg> toProto(TbSubscription subscription, Alarm alarm, AlarmAssigneeUpdate assignee, boolean deleted) {
         TbAlarmSubscriptionUpdateProto.Builder builder = TbAlarmSubscriptionUpdateProto.newBuilder();
 
         builder.setSessionId(subscription.getSessionId());
         builder.setSubscriptionId(subscription.getSubscriptionId());
         builder.setAlarm(JacksonUtil.toString(alarm));
+        if (assignee != null) {
+            builder.setAssignee(JacksonUtil.toString(assignee));
+        }
         builder.setDeleted(deleted);
 
         ToCoreNotificationMsg toCoreMsg = ToCoreNotificationMsg.newBuilder().setToLocalSubscriptionServiceMsg(
-                        LocalSubscriptionServiceMsgProto.newBuilder()
-                                .setAlarmSubUpdate(builder.build()).build())
+                LocalSubscriptionServiceMsgProto.newBuilder()
+                        .setAlarmSubUpdate(builder.build()).build())
                 .build();
         return new TbProtoQueueMsg<>(subscription.getEntityId().getId(), toCoreMsg);
     }

application/src/main/java/org/thingsboard/server/service/subscription/SubscriptionManagerService.java

@@ -17,12 +17,12 @@ package org.thingsboard.server.service.subscription;
 
 import org.springframework.context.ApplicationListener;
 import org.thingsboard.server.common.data.alarm.Alarm;
-import org.thingsboard.server.common.data.alarm.AlarmInfo;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.kv.AttributeKvEntry;
 import org.thingsboard.server.common.data.kv.TsKvEntry;
 import org.thingsboard.server.common.msg.queue.TbCallback;
+import org.thingsboard.server.common.data.alarm.AlarmAssigneeUpdate;
 import org.thingsboard.server.queue.discovery.event.PartitionChangeEvent;
 
 import java.util.List;
@@ -43,7 +43,7 @@ public interface SubscriptionManagerService extends ApplicationListener<Partitio
 
     void onTimeSeriesDelete(TenantId tenantId, EntityId entityId, List<String> keys, TbCallback callback);
 
-    void onAlarmUpdate(TenantId tenantId, EntityId entityId, Alarm alarm, TbCallback callback);
+    void onAlarmUpdate(TenantId tenantId, EntityId entityId, Alarm alarm, AlarmAssigneeUpdate assignee, TbCallback callback);
 
     void onAlarmDeleted(TenantId tenantId, EntityId entityId, Alarm alarm, TbCallback callback);
 

application/src/main/java/org/thingsboard/server/service/subscription/TbAlarmDataSubCtx.java

@@ -224,7 +224,7 @@ public class TbAlarmDataSubCtx extends TbAbstractDataSubCtx<AlarmDataQuery> {
             boolean matchesFilter = filter(alarm);
             if (onCurrentPage) {
                 if (matchesFilter) {
-                    AlarmData updated = current.update(alarm);
+                    AlarmData updated = current.update(alarm, subscriptionUpdate.getAssignee());
                     updated.getLatest().putAll(current.getLatest());
                     alarmsMap.put(alarmId, updated);
                     sendWsMsg(new AlarmDataUpdate(cmdId, null, Collections.singletonList(updated), maxEntitiesPerAlarmSubscription, data.getTotalElements()));

application/src/main/java/org/thingsboard/server/service/subscription/TbSubscriptionUtils.java

@@ -17,6 +17,7 @@ package org.thingsboard.server.service.subscription;
 
 import org.thingsboard.common.util.JacksonUtil;
 import org.thingsboard.server.common.data.alarm.Alarm;
+import org.thingsboard.server.common.data.alarm.AlarmAssigneeUpdate;
 import org.thingsboard.server.common.data.alarm.AlarmInfo;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.EntityIdFactory;
@@ -191,7 +192,8 @@ public class TbSubscriptionUtils {
             return new AlarmSubscriptionUpdate(proto.getSubscriptionId(), SubscriptionErrorCode.forCode(proto.getErrorCode()), proto.getErrorMsg());
         } else {
             Alarm alarm = JacksonUtil.fromString(proto.getAlarm(), Alarm.class);
-            return new AlarmSubscriptionUpdate(proto.getSubscriptionId(), alarm);
+            AlarmAssigneeUpdate assigneeUpdate = JacksonUtil.fromString(proto.getAlarm(), AlarmAssigneeUpdate.class);
+            return new AlarmSubscriptionUpdate(proto.getSubscriptionId(), alarm, assigneeUpdate, proto.getDeleted());
         }
     }
 
@@ -317,7 +319,7 @@ public class TbSubscriptionUtils {
         return entry;
     }
 
-    public static ToCoreMsg toAlarmUpdateProto(TenantId tenantId, EntityId entityId, Alarm alarm) {
+    public static ToCoreMsg toAlarmUpdateProto(TenantId tenantId, EntityId entityId, AlarmAssigneeUpdate assigneeUpdate, Alarm alarm) {
         TbAlarmUpdateProto.Builder builder = TbAlarmUpdateProto.newBuilder();
         builder.setEntityType(entityId.getEntityType().name());
         builder.setEntityIdMSB(entityId.getId().getMostSignificantBits());
@@ -325,6 +327,7 @@ public class TbSubscriptionUtils {
         builder.setTenantIdMSB(tenantId.getId().getMostSignificantBits());
         builder.setTenantIdLSB(tenantId.getId().getLeastSignificantBits());
         builder.setAlarm(JacksonUtil.toString(alarm));
+        builder.setAssignee(JacksonUtil.toString(assigneeUpdate));
         SubscriptionMgrMsgProto.Builder msgBuilder = SubscriptionMgrMsgProto.newBuilder();
         msgBuilder.setAlarmUpdate(builder);
         return ToCoreMsg.newBuilder().setToSubscriptionMgrMsg(msgBuilder.build()).build();

application/src/main/java/org/thingsboard/server/service/telemetry/DefaultAlarmSubscriptionService.java

@@ -211,12 +211,12 @@ public class DefaultAlarmSubscriptionService extends AbstractSubscriptionService
                 TopicPartitionInfo tpi = partitionService.resolve(ServiceType.TB_CORE, tenantId, entityId);
                 if (currentPartitions.contains(tpi)) {
                     if (subscriptionManagerService.isPresent()) {
-                        subscriptionManagerService.get().onAlarmUpdate(tenantId, entityId, alarm, TbCallback.EMPTY);
+                        subscriptionManagerService.get().onAlarmUpdate(tenantId, entityId, alarm, result.getAssigneeUpdate(), TbCallback.EMPTY);
                     } else {
                         log.warn("Possible misconfiguration because subscriptionManagerService is null!");
                     }
                 } else {
-                    TransportProtos.ToCoreMsg toCoreMsg = TbSubscriptionUtils.toAlarmUpdateProto(tenantId, entityId, alarm);
+                    TransportProtos.ToCoreMsg toCoreMsg = TbSubscriptionUtils.toAlarmUpdateProto(tenantId, entityId, result.getAssigneeUpdate(), alarm);
                     clusterService.pushMsgToCore(tpi, entityId.getId(), toCoreMsg, null);
                 }
             }

application/src/main/java/org/thingsboard/server/service/telemetry/sub/AlarmSubscriptionUpdate.java

@@ -17,16 +17,7 @@ package org.thingsboard.server.service.telemetry.sub;
 
 import lombok.Getter;
 import org.thingsboard.server.common.data.alarm.Alarm;
-import org.thingsboard.server.common.data.alarm.AlarmInfo;
-import org.thingsboard.server.common.data.kv.TsKvEntry;
-import org.thingsboard.server.common.data.query.AlarmData;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import java.util.TreeMap;
-import java.util.stream.Collectors;
+import org.thingsboard.server.common.data.alarm.AlarmAssigneeUpdate;
 
 public class AlarmSubscriptionUpdate {
 
@@ -39,16 +30,19 @@ public class AlarmSubscriptionUpdate {
     @Getter
     private Alarm alarm;
     @Getter
+    private AlarmAssigneeUpdate assignee;
+    @Getter
     private boolean alarmDeleted;
 
     public AlarmSubscriptionUpdate(int subscriptionId, Alarm alarm) {
-        this(subscriptionId, alarm, false);
+        this(subscriptionId, alarm, null, false);
     }
 
-    public AlarmSubscriptionUpdate(int subscriptionId, Alarm alarm, boolean alarmDeleted) {
+    public AlarmSubscriptionUpdate(int subscriptionId, Alarm alarm, AlarmAssigneeUpdate assignee, boolean alarmDeleted) {
         super();
         this.subscriptionId = subscriptionId;
         this.alarm = alarm;
+        this.assignee = assignee;
         this.alarmDeleted = alarmDeleted;
     }
 

common/cluster-api/src/main/proto/queue.proto

@@ -562,6 +562,7 @@ message TbAlarmSubscriptionUpdateProto {
   string errorMsg = 4;
   string alarm = 5;
   bool deleted = 6;
+  string assignee = 7;
 }
 
 message TbAttributeUpdateProto {
@@ -581,6 +582,7 @@ message TbAlarmUpdateProto {
   int64 tenantIdMSB = 4;
   int64 tenantIdLSB = 5;
   string alarm = 6;
+  string assignee = 7;
 }
 
 message TbAlarmDeleteProto {

common/dao-api/src/main/java/org/thingsboard/server/dao/alarm/AlarmOperationResult.java

@@ -18,8 +18,8 @@ package org.thingsboard.server.dao.alarm;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import org.thingsboard.server.common.data.alarm.Alarm;
+import org.thingsboard.server.common.data.alarm.AlarmAssigneeUpdate;
 import org.thingsboard.server.common.data.alarm.AlarmSeverity;
-import org.thingsboard.server.common.data.alarm.AlarmInfo;
 import org.thingsboard.server.common.data.id.EntityId;
 
 import java.util.Collections;
@@ -34,12 +34,18 @@ public class AlarmOperationResult {
     private final AlarmSeverity oldSeverity;
     private final List<EntityId> propagatedEntitiesList;
 
+    private final AlarmAssigneeUpdate assigneeUpdate;
+
+    public AlarmOperationResult(Alarm alarm, AlarmAssigneeUpdate assigneeUpdate, List<EntityId> propagatedEntitiesList) {
+        this(alarm, true, false, null, propagatedEntitiesList, assigneeUpdate);
+    }
+
     public AlarmOperationResult(Alarm alarm, boolean successful) {
         this(alarm, successful, Collections.emptyList());
     }
 
     public AlarmOperationResult(Alarm alarm, boolean successful, List<EntityId> propagatedEntitiesList) {
-        this(alarm, successful, false, null, propagatedEntitiesList);
+        this(alarm, successful, false, null, propagatedEntitiesList, null);
     }
 
     public AlarmOperationResult(Alarm alarm, boolean successful, boolean created, List<EntityId> propagatedEntitiesList) {
@@ -48,5 +54,6 @@ public class AlarmOperationResult {
         this.created = created;
         this.propagatedEntitiesList = propagatedEntitiesList;
         this.oldSeverity = null;
+        this.assigneeUpdate = null;
     }
 }

common/data/src/main/java/org/thingsboard/server/common/data/alarm/AlarmAssignee.java

@@ -0,0 +1,34 @@
+/**
+ * Copyright © 2016-2023 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.common.data.alarm;
+
+import lombok.Builder;
+import lombok.Data;
+import org.thingsboard.server.common.data.id.UserId;
+
+import java.io.Serializable;
+
+@Data
+public class AlarmAssignee implements Serializable {
+
+    private static final long serialVersionUID = 6628286223963972860L;
+
+    private final UserId id;
+    private final String firstName;
+    private final String lastName;
+    private final String email;
+
+}

common/data/src/main/java/org/thingsboard/server/common/data/alarm/AlarmAssigneeUpdate.java

@@ -0,0 +1,30 @@
+/**
+ * Copyright © 2016-2023 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.common.data.alarm;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+@Data
+public class AlarmAssigneeUpdate implements Serializable {
+
+    private static final long serialVersionUID = -2391676304697483808L;
+
+    private final boolean deleted;
+    private final AlarmAssignee assignee;
+
+}

common/data/src/main/java/org/thingsboard/server/common/data/query/AlarmData.java

@@ -18,12 +18,13 @@ package org.thingsboard.server.common.data.query;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import org.thingsboard.server.common.data.alarm.Alarm;
+import org.thingsboard.server.common.data.alarm.AlarmAssignee;
+import org.thingsboard.server.common.data.alarm.AlarmAssigneeUpdate;
 import org.thingsboard.server.common.data.alarm.AlarmInfo;
 import org.thingsboard.server.common.data.id.EntityId;
 
 import java.util.HashMap;
 import java.util.Map;
-import java.util.UUID;
 
 @EqualsAndHashCode(callSuper = true)
 public class AlarmData extends AlarmInfo {
@@ -35,7 +36,7 @@ public class AlarmData extends AlarmInfo {
     @Getter
     private final Map<EntityKeyType, Map<String, TsValue>> latest;
 
-    public AlarmData update(Alarm alarm) {
+    public AlarmData update(Alarm alarm, AlarmAssigneeUpdate assigneeUpdate) {
         this.setEndTs(alarm.getEndTs());
         this.setSeverity(alarm.getSeverity());
         this.setStatus(alarm.getStatus());
@@ -47,6 +48,21 @@ public class AlarmData extends AlarmInfo {
         // This should be changed via separate message?
         this.setAckTs(alarm.getAckTs());
         this.setClearTs(alarm.getClearTs());
+
+        if (assigneeUpdate != null) {
+            if (assigneeUpdate.isDeleted()) {
+                this.setAssigneeId(null);
+                this.setAssigneeFirstName(null);
+                this.setAssigneeLastName(null);
+                this.setAssigneeEmail(null);
+            } else {
+                AlarmAssignee assignee = assigneeUpdate.getAssignee();
+                this.setAssigneeId(assignee.getId());
+                this.setAssigneeFirstName(assignee.getFirstName());
+                this.setAssigneeLastName(assignee.getLastName());
+                this.setAssigneeEmail(assignee.getEmail());
+            }
+        }
         return this;
     }
 

dao/src/main/java/org/thingsboard/server/dao/alarm/BaseAlarmService.java

@@ -30,6 +30,8 @@ import org.thingsboard.common.util.ThingsBoardThreadFactory;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.User;
 import org.thingsboard.server.common.data.alarm.Alarm;
+import org.thingsboard.server.common.data.alarm.AlarmAssignee;
+import org.thingsboard.server.common.data.alarm.AlarmAssigneeUpdate;
 import org.thingsboard.server.common.data.alarm.AlarmInfo;
 import org.thingsboard.server.common.data.alarm.AlarmQuery;
 import org.thingsboard.server.common.data.alarm.AlarmSearchStatus;
@@ -228,12 +230,12 @@ public class BaseAlarmService extends AbstractEntityService implements AlarmServ
         } else {
             propagatedEntitiesList = new ArrayList<>(getPropagationEntityIds(result));
         }
-        return new AlarmOperationResult(result, true, false, oldAlarmSeverity, propagatedEntitiesList);
+        return new AlarmOperationResult(result, true, false, oldAlarmSeverity, propagatedEntitiesList, null);
     }
 
     @Override
     public ListenableFuture<AlarmOperationResult> ackAlarm(TenantId tenantId, AlarmId alarmId, long ackTime) {
-        return getAndUpdateAsync(tenantId, alarmId, new Function<Alarm, AlarmOperationResult>() {
+        return getAndUpdateAsync(tenantId, alarmId, new Function<>() {
             @Nullable
             @Override
             public AlarmOperationResult apply(@Nullable Alarm alarm) {
@@ -286,7 +288,11 @@ public class BaseAlarmService extends AbstractEntityService implements AlarmServ
                     alarm.setAssigneeId(assigneeId);
                     alarm.setAssignTs(assignTime);
                     alarm = alarmDao.save(alarm.getTenantId(), alarm);
-                    return new AlarmOperationResult(alarm, true, new ArrayList<>(getPropagationEntityIds(alarm)));
+                    AlarmInfo alarmInfo = getAlarmInfo(tenantId, alarm);
+                    return new AlarmOperationResult(alarm, new AlarmAssigneeUpdate(false,
+                            new AlarmAssignee(alarmInfo.getAssigneeId(), alarmInfo.getAssigneeFirstName(),
+                                    alarmInfo.getAssigneeLastName(), alarmInfo.getAssigneeEmail())
+                            ), new ArrayList<>(getPropagationEntityIds(alarm)));
                 }
             }
         });
@@ -304,7 +310,8 @@ public class BaseAlarmService extends AbstractEntityService implements AlarmServ
                     alarm.setAssigneeId(null);
                     alarm.setAssignTs(assignTime);
                     alarm = alarmDao.save(alarm.getTenantId(), alarm);
-                    return new AlarmOperationResult(alarm, true, new ArrayList<>(getPropagationEntityIds(alarm)));
+                    return new AlarmOperationResult(alarm, new AlarmAssigneeUpdate(true, null),
+                            new ArrayList<>(getPropagationEntityIds(alarm)));
                 }
             }
         });