Don't unassign deleted user alarms on tenant deletion

dao/src/main/java/org/thingsboard/server/dao/eventsourcing/ActionCause.java

@@ -0,0 +1,20 @@
+/**
+ * Copyright © 2016-2024 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.dao.eventsourcing;
+
+public enum ActionCause {
+    TENANT_DELETION
+}

dao/src/main/java/org/thingsboard/server/dao/eventsourcing/DeleteEntityEvent.java

@@ -17,18 +17,20 @@ package org.thingsboard.server.dao.eventsourcing;
 
 import lombok.Builder;
 import lombok.Data;
-import org.thingsboard.server.common.data.id.EdgeId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 
 @Builder
 @Data
 public class DeleteEntityEvent<T> {
+
     private final TenantId tenantId;
     private final EntityId entityId;
     private final T entity;
     private final String body;
+    private final ActionCause cause;
 
     @Builder.Default
     private final long ts = System.currentTimeMillis();
+
 }

dao/src/main/java/org/thingsboard/server/dao/housekeeper/CleanUpService.java

@@ -27,6 +27,7 @@ import org.thingsboard.server.common.data.housekeeper.HousekeeperTask;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.msg.housekeeper.HousekeeperClient;
+import org.thingsboard.server.dao.eventsourcing.ActionCause;
 import org.thingsboard.server.dao.eventsourcing.DeleteEntityEvent;
 import org.thingsboard.server.dao.relation.RelationService;
 
@@ -59,7 +60,7 @@ public class CleanUpService {
             if (!skippedEntities.contains(entityType)) {
                 cleanUpRelatedData(tenantId, entityId);
             }
-            if (entityType == EntityType.USER) {
+            if (entityType == EntityType.USER && event.getCause() != ActionCause.TENANT_DELETION) {
                 submitTask(HousekeeperTask.unassignAlarms((User) event.getEntity()));
             }
         } catch (Throwable e) {

dao/src/main/java/org/thingsboard/server/dao/user/UserServiceImpl.java

@@ -53,6 +53,7 @@ import org.thingsboard.server.common.data.settings.UserSettings;
 import org.thingsboard.server.common.data.settings.UserSettingsType;
 import org.thingsboard.server.dao.entity.AbstractCachedEntityService;
 import org.thingsboard.server.dao.entity.EntityCountService;
+import org.thingsboard.server.dao.eventsourcing.ActionCause;
 import org.thingsboard.server.dao.eventsourcing.ActionEntityEvent;
 import org.thingsboard.server.dao.eventsourcing.DeleteEntityEvent;
 import org.thingsboard.server.dao.eventsourcing.SaveEntityEvent;
@@ -293,6 +294,10 @@ public class UserServiceImpl extends AbstractCachedEntityService<UserCacheKey, U
     @Override
     @Transactional
     public void deleteUser(TenantId tenantId, User user) {
+        deleteUser(tenantId, user, null);
+    }
+
+    private void deleteUser(TenantId tenantId, User user, ActionCause cause) {
         Objects.requireNonNull(user, "User is null");
         UserId userId = user.getId();
         log.trace("[{}] Executing deleteUser [{}]", tenantId, userId);
@@ -307,7 +312,9 @@ public class UserServiceImpl extends AbstractCachedEntityService<UserCacheKey, U
         eventPublisher.publishEvent(DeleteEntityEvent.builder()
                 .tenantId(tenantId)
                 .entityId(userId)
-                .entity(user).build());
+                .entity(user)
+                .cause(cause)
+                .build());
     }
 
     @Override
@@ -564,7 +571,7 @@ public class UserServiceImpl extends AbstractCachedEntityService<UserCacheKey, U
 
         @Override
         protected void removeEntity(TenantId tenantId, User user) {
-            deleteUser(tenantId, user);
+            deleteUser(tenantId, user, ActionCause.TENANT_DELETION);
         }
     };