added alarm_types table

application/src/main/data/upgrade/3.5.1/schema_update.sql

@@ -122,3 +122,10 @@ ALTER TABLE resource
 UPDATE resource
     SET etag = encode(sha256(decode(resource.data, 'base64')),'hex') WHERE resource.data is not null;
 
+CREATE TABLE IF NOT EXISTS alarm_types (
+    tenant_id uuid NOT NULL,
+    type varchar(255) NOT NULL,
+    CONSTRAINT tenant_id_type_unq_key UNIQUE (tenant_id, type)
+    );
+
+INSERT INTO alarm_types (tenant_id, type) SELECT DISTINCT tenant_id, type FROM alarm ON CONFLICT (tenant_id, type) DO NOTHING;

application/src/main/java/org/thingsboard/server/controller/AlarmController.java

@@ -45,6 +45,7 @@ import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.EntityIdFactory;
 import org.thingsboard.server.common.data.id.UserId;
 import org.thingsboard.server.common.data.page.PageData;
+import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.common.data.page.TimePageLink;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.entitiy.alarm.TbAlarmService;
@@ -504,8 +505,16 @@ public class AlarmController extends BaseController {
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN', 'CUSTOMER_USER')")
     @RequestMapping(value = "/alarm/types", method = RequestMethod.GET)
     @ResponseBody
-    public List<EntitySubtype> getAlarmTypes() throws ThingsboardException, ExecutionException, InterruptedException {
+    public PageData<EntitySubtype> getAlarmTypes(@ApiParam(value = PAGE_SIZE_DESCRIPTION, required = true)
-        return checkNotNull(alarmService.findAlarmTypesByTenantId(getTenantId()));
+                                                 @RequestParam int pageSize,
+                                                 @ApiParam(value = PAGE_NUMBER_DESCRIPTION, required = true)
+                                                 @RequestParam int page,
+                                                 @ApiParam(value = ALARM_QUERY_TEXT_SEARCH_DESCRIPTION)
+                                                 @RequestParam(required = false) String textSearch,
+                                                 @ApiParam(value = SORT_ORDER_DESCRIPTION, allowableValues = SORT_ORDER_ALLOWABLE_VALUES)
+                                                 @RequestParam(required = false) String sortOrder) throws ThingsboardException, ExecutionException, InterruptedException {
+        PageLink pageLink = createPageLink(pageSize, page, textSearch, "type", sortOrder);
+        return checkNotNull(alarmService.findAlarmTypesByTenantId(getTenantId(), pageLink));
     }
 
 }

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

@@ -47,6 +47,7 @@ import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.id.UserId;
 import org.thingsboard.server.common.data.notification.rule.trigger.AlarmTrigger;
 import org.thingsboard.server.common.data.page.PageData;
+import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.common.data.query.AlarmData;
 import org.thingsboard.server.common.data.query.AlarmDataQuery;
 import org.thingsboard.server.common.msg.notification.NotificationRuleProcessor;
@@ -59,7 +60,6 @@ import org.thingsboard.server.service.entitiy.alarm.TbAlarmCommentService;
 import org.thingsboard.server.service.subscription.TbSubscriptionUtils;
 
 import java.util.Collection;
-import java.util.List;
 
 /**
  * Created by ashvayka on 27.03.18.
@@ -238,8 +238,8 @@ public class DefaultAlarmSubscriptionService extends AbstractSubscriptionService
     }
 
     @Override
-    public List<EntitySubtype> findAlarmTypesByTenantId(TenantId tenantId) {
+    public PageData<EntitySubtype> findAlarmTypesByTenantId(TenantId tenantId, PageLink pageLink) {
-        return alarmService.findAlarmTypesByTenantId(tenantId);
+        return alarmService.findAlarmTypesByTenantId(tenantId, pageLink);
     }
 
     private void onAlarmUpdated(AlarmApiCallResult result) {

application/src/main/java/org/thingsboard/server/service/ttl/AlarmsCleanUpService.java

@@ -39,7 +39,9 @@ import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.action.EntityActionService;
 
 import java.util.Date;
+import java.util.HashSet;
 import java.util.Optional;
+import java.util.Set;
 import java.util.concurrent.TimeUnit;
 
 @TbCoreComponent
@@ -86,20 +88,25 @@ public class AlarmsCleanUpService {
 
         PageLink removalBatchRequest = new PageLink(removalBatchSize, 0);
         long totalRemoved = 0;
+        Set<String> typesToRemove = new HashSet<>();
         while (true) {
             PageData<AlarmId> toRemove = alarmDao.findAlarmsIdsByEndTsBeforeAndTenantId(expirationTime, tenantId, removalBatchRequest);
             for (AlarmId alarmId : toRemove.getData()) {
                 relationService.deleteEntityRelations(tenantId, alarmId);
-                Alarm alarm = alarmService.delAlarm(tenantId, alarmId).getAlarm();
+                Alarm alarm = alarmService.delAlarm(tenantId, alarmId, false).getAlarm();
                 if (alarm != null) {
                     entityActionService.pushEntityActionToRuleEngine(alarm.getOriginator(), alarm, tenantId, null, ActionType.ALARM_DELETE, null);
                     totalRemoved++;
+                    typesToRemove.add(alarm.getType());
                 }
             }
             if (!toRemove.hasNext()) {
                 break;
             }
         }
+
+        alarmService.delAlarmTypes(tenantId, typesToRemove);
+
         if (totalRemoved > 0) {
             log.info("Removed {} outdated alarm(s) for tenant {} older than {}", totalRemoved, tenantId, new Date(expirationTime));
         }

application/src/test/java/org/thingsboard/server/controller/AlarmControllerTest.java

@@ -47,7 +47,6 @@ import org.thingsboard.server.dao.service.DaoSqlTest;
 
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.stream.Collectors;
@@ -747,15 +746,15 @@ public class AlarmControllerTest extends AbstractControllerTest {
     public void testGetAlarmTypes() throws Exception {
         loginTenantAdmin();
 
-        Mockito.reset(tbClusterService, auditLogService);
-
         List<String> types = new ArrayList<>();
 
         for (int i = 1; i < 13; i++) {
             types.add(createAlarm(TEST_ALARM_TYPE + i).getType());
         }
 
-        List<String> foundTypes = doGetTyped("/api/alarm/types", new TypeReference<List<EntitySubtype>>() {})
+        List<String> foundTypes = doGetTyped("/api/alarm/types?pageSize=1024&page=0", new TypeReference<PageData<EntitySubtype>>() {
+        })
+                .getData()
                 .stream()
                 .map(EntitySubtype::getType)
                 .collect(Collectors.toList());
@@ -766,4 +765,78 @@ public class AlarmControllerTest extends AbstractControllerTest {
         Assert.assertEquals(types, foundTypes);
     }
 
+    @Test
+    public void testDeleteAlarmTypes() throws Exception {
+        loginTenantAdmin();
+
+        List<AlarmInfo> alarms = new ArrayList<>();
+
+        for (int i = 1; i < 13; i++) {
+            alarms.add(createAlarm(TEST_ALARM_TYPE + i));
+        }
+
+        Device device = new Device();
+        device.setName("Test device 2");
+        device.setCustomerId(customerId);
+        customerDevice = doPost("/api/device", device, Device.class);
+
+        for (int i = 1; i < 14; i++) {
+            alarms.add(createAlarm(TEST_ALARM_TYPE + i));
+        }
+
+        List<String> expectedTypes = alarms.stream().map(AlarmInfo::getType).distinct().sorted().collect(Collectors.toList());
+
+        List<String> foundTypes = doGetTyped("/api/alarm/types?pageSize=1024&page=0", new TypeReference<PageData<EntitySubtype>>() {
+        })
+                .getData()
+                .stream()
+                .map(EntitySubtype::getType)
+                .sorted()
+                .collect(Collectors.toList());
+
+        Assert.assertEquals(13, foundTypes.size());
+        Assert.assertEquals(expectedTypes, foundTypes);
+
+        for (int i = 0; i < 12; i++) {
+            doDelete("/api/alarm/" + alarms.get(i).getId()).andExpect(status().isOk());
+        }
+
+        foundTypes = doGetTyped("/api/alarm/types?pageSize=1024&page=0", new TypeReference<PageData<EntitySubtype>>() {
+        })
+                .getData()
+                .stream()
+                .map(EntitySubtype::getType)
+                .sorted()
+                .collect(Collectors.toList());
+
+        Assert.assertEquals(13, foundTypes.size());
+        Assert.assertEquals(expectedTypes, foundTypes);
+
+        doDelete("/api/alarm/" + alarms.get(12).getId()).andExpect(status().isOk());
+
+        foundTypes = doGetTyped("/api/alarm/types?pageSize=1024&page=0", new TypeReference<PageData<EntitySubtype>>() {
+        })
+                .getData()
+                .stream()
+                .map(EntitySubtype::getType)
+                .sorted()
+                .collect(Collectors.toList());
+
+        Assert.assertEquals(12, foundTypes.size());
+
+        for (int i = 13; i < alarms.size(); i++) {
+            doDelete("/api/alarm/" + alarms.get(i).getId()).andExpect(status().isOk());
+        }
+
+        foundTypes = doGetTyped("/api/alarm/types?pageSize=1024&page=0", new TypeReference<PageData<EntitySubtype>>() {
+        })
+                .getData()
+                .stream()
+                .map(EntitySubtype::getType)
+                .sorted()
+                .collect(Collectors.toList());
+
+        Assert.assertTrue(foundTypes.isEmpty());
+    }
+
 }

application/src/test/java/org/thingsboard/server/service/ttl/AlarmsCleanUpServiceTest.java

@@ -104,10 +104,10 @@ public class AlarmsCleanUpServiceTest extends AbstractControllerTest {
         alarmsCleanUpService.cleanUp();
 
         for (AlarmId outdatedAlarm : outdatedAlarms) {
-            verify(alarmService).delAlarm(eq(tenantId), eq(outdatedAlarm));
+            verify(alarmService).delAlarm(eq(tenantId), eq(outdatedAlarm), eq(false));
         }
         for (AlarmId freshAlarm : freshAlarms) {
-            verify(alarmService, never()).delAlarm(eq(tenantId), eq(freshAlarm));
+            verify(alarmService, never()).delAlarm(eq(tenantId), eq(freshAlarm), eq(false));
         }
 
         verify(cleanUpServiceLogger).info(startsWith("Removed {} outdated alarm"), eq((long) count), eq(tenantId), any());

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

@@ -34,13 +34,14 @@ import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.id.UserId;
 import org.thingsboard.server.common.data.page.PageData;
+import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.common.data.query.AlarmCountQuery;
 import org.thingsboard.server.common.data.query.AlarmData;
 import org.thingsboard.server.common.data.query.AlarmDataQuery;
 import org.thingsboard.server.dao.entity.EntityDaoService;
 
 import java.util.Collection;
-import java.util.List;
+import java.util.Set;
 
 
 public interface AlarmService extends EntityDaoService {
@@ -76,6 +77,10 @@ public interface AlarmService extends EntityDaoService {
 
     AlarmApiCallResult delAlarm(TenantId tenantId, AlarmId alarmId);
 
+    AlarmApiCallResult delAlarm(TenantId tenantId, AlarmId alarmId, boolean deleteAlarmType);
+
+    void delAlarmTypes(TenantId tenantId, Set<String> types);
+
     /*
      *  Legacy API, before 3.5.
      */
@@ -124,5 +129,5 @@ public interface AlarmService extends EntityDaoService {
 
     long countAlarmsByQuery(TenantId tenantId, CustomerId customerId, AlarmCountQuery query);
 
-    List<EntitySubtype> findAlarmTypesByTenantId(TenantId tenantId);
+    PageData<EntitySubtype> findAlarmTypesByTenantId(TenantId tenantId, PageLink pageLink);
 }

common/data/src/main/java/org/thingsboard/server/common/data/page/PageData.java

@@ -20,13 +20,14 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
+import java.io.Serializable;
 import java.util.Collections;
 import java.util.List;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
 @ApiModel
-public class PageData<T> {
+public class PageData<T> implements Serializable {
 
     private final List<T> data;
     private final int totalPages;

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

@@ -98,6 +98,7 @@ public interface AlarmDao extends Dao<Alarm> {
 
     long countAlarmsByQuery(TenantId tenantId, CustomerId customerId, AlarmCountQuery query);
 
-    List<EntitySubtype> findTenantAlarmTypes(UUID tenantId);
+    PageData<EntitySubtype> findTenantAlarmTypes(UUID tenantId, PageLink pageLink);
 
+    boolean removeAlarmTypes(UUID tenantId, Set<String> types);
 }

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

@@ -22,12 +22,11 @@ import org.thingsboard.server.cache.CaffeineTbTransactionalCache;
 import org.thingsboard.server.common.data.CacheConstants;
 import org.thingsboard.server.common.data.EntitySubtype;
 import org.thingsboard.server.common.data.id.TenantId;
-
+import org.thingsboard.server.common.data.page.PageData;
-import java.util.ArrayList;
 
 @ConditionalOnProperty(prefix = "cache", value = "type", havingValue = "caffeine", matchIfMissing = true)
 @Service("AlarmTypesCache")
-public class AlarmTypesCaffeineCache extends CaffeineTbTransactionalCache<TenantId, ArrayList<EntitySubtype>> {
+public class AlarmTypesCaffeineCache extends CaffeineTbTransactionalCache<TenantId, PageData<EntitySubtype>> {
 
     public AlarmTypesCaffeineCache(CacheManager cacheManager) {
         super(cacheManager, CacheConstants.ALARM_TYPES_CACHE);

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

@@ -25,12 +25,11 @@ import org.thingsboard.server.cache.TbFSTRedisSerializer;
 import org.thingsboard.server.common.data.CacheConstants;
 import org.thingsboard.server.common.data.EntitySubtype;
 import org.thingsboard.server.common.data.id.TenantId;
-
+import org.thingsboard.server.common.data.page.PageData;
-import java.util.ArrayList;
 
 @ConditionalOnProperty(prefix = "cache", value = "type", havingValue = "redis")
 @Service("AlarmTypesCache")
-public class AlarmTypesRedisCache extends RedisTbTransactionalCache<TenantId, ArrayList<EntitySubtype>> {
+public class AlarmTypesRedisCache extends RedisTbTransactionalCache<TenantId, PageData<EntitySubtype>> {
 
     public AlarmTypesRedisCache(TBRedisCacheConfiguration configuration, CacheSpecsMap cacheSpecsMap, RedisConnectionFactory connectionFactory) {
         super(CacheConstants.ALARM_TYPES_CACHE, cacheSpecsMap, connectionFactory, configuration, new TbFSTRedisSerializer<>());

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

@@ -22,12 +22,10 @@ import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.transaction.event.TransactionalEventListener;
 import org.springframework.util.CollectionUtils;
-import org.thingsboard.server.cache.TbTransactionalCache;
 import org.thingsboard.server.common.data.EntitySubtype;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.alarm.Alarm;
@@ -51,6 +49,8 @@ import org.thingsboard.server.common.data.id.HasId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.id.UserId;
 import org.thingsboard.server.common.data.page.PageData;
+import org.thingsboard.server.common.data.page.PageLink;
+import org.thingsboard.server.common.data.page.SortOrder;
 import org.thingsboard.server.common.data.query.AlarmCountQuery;
 import org.thingsboard.server.common.data.query.AlarmData;
 import org.thingsboard.server.common.data.query.AlarmDataQuery;
@@ -68,7 +68,6 @@ import org.thingsboard.server.dao.tenant.TenantService;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.Comparator;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Optional;
@@ -83,24 +82,22 @@ import static org.thingsboard.server.dao.service.Validator.validateId;
 @Service("AlarmDaoService")
 @Slf4j
 @RequiredArgsConstructor
-public class BaseAlarmService extends AbstractCachedEntityService<TenantId, ArrayList<EntitySubtype>, AlarmTypesCacheEvictEvent> implements AlarmService {
+public class BaseAlarmService extends AbstractCachedEntityService<TenantId, PageData<EntitySubtype>, AlarmTypesCacheEvictEvent> implements AlarmService {
 
     public static final String INCORRECT_TENANT_ID = "Incorrect tenantId ";
 
+    private static final PageLink DEFAULT_ALARM_TYPES_PAGE_LINK = new PageLink(25, 0, null, new SortOrder("type"));
+
     private final TenantService tenantService;
     private final AlarmDao alarmDao;
     private final EntityService entityService;
     private final DataValidator<Alarm> alarmDataValidator;
 
-    @Autowired
-    protected TbTransactionalCache<TenantId, ArrayList<EntitySubtype>> alarmTypesCache;
-
     @TransactionalEventListener(classes = AlarmTypesCacheEvictEvent.class)
     @Override
     public void handleEvictEvent(AlarmTypesCacheEvictEvent event) {
         TenantId tenantId = event.getTenantId();
         cache.evict(tenantId);
-        alarmTypesCache.evict(tenantId);
     }
 
     @Override
@@ -198,6 +195,12 @@ public class BaseAlarmService extends AbstractCachedEntityService<TenantId, Arra
     @Override
     @Transactional
     public AlarmApiCallResult delAlarm(TenantId tenantId, AlarmId alarmId) {
+        return delAlarm(tenantId, alarmId, true);
+    }
+
+    @Override
+    @Transactional
+    public AlarmApiCallResult delAlarm(TenantId tenantId, AlarmId alarmId, boolean deleteAlarmType) {
         log.debug("Deleting Alarm Id: {}", alarmId);
         AlarmInfo alarm = alarmDao.findAlarmInfoById(tenantId, alarmId.getId());
         if (alarm == null) {
@@ -205,11 +208,20 @@ public class BaseAlarmService extends AbstractCachedEntityService<TenantId, Arra
         } else {
             deleteEntityRelations(tenantId, alarm.getId());
             alarmDao.removeById(tenantId, alarm.getUuidId());
-            publishEvictEvent(new AlarmTypesCacheEvictEvent(tenantId));
+            if (deleteAlarmType) {
+                delAlarmTypes(tenantId, Collections.singleton(alarm.getType()));
+            }
             return AlarmApiCallResult.builder().alarm(alarm).deleted(true).successful(true).build();
         }
     }
 
+    @Override
+    public void delAlarmTypes(TenantId tenantId, Set<String> types) {
+        if (!types.isEmpty() && alarmDao.removeAlarmTypes(tenantId.getId(), types)) {
+            publishEvictEvent(new AlarmTypesCacheEvictEvent(tenantId));
+        }
+    }
+
     @Override
     @Transactional
     public AlarmOperationResult deleteAlarm(TenantId tenantId, AlarmId alarmId) {
@@ -221,14 +233,12 @@ public class BaseAlarmService extends AbstractCachedEntityService<TenantId, Arra
         AlarmOperationResult result = new AlarmOperationResult(alarm, true, new ArrayList<>(getPropagationEntityIds(alarm)));
         deleteEntityRelations(tenantId, alarm.getId());
         alarmDao.removeById(tenantId, alarm.getUuidId());
-        publishEvictEvent(new AlarmTypesCacheEvictEvent(tenantId));
         return result;
     }
 
     private AlarmOperationResult createAlarm(Alarm alarm) throws InterruptedException, ExecutionException {
         log.debug("New Alarm : {}", alarm);
         Alarm saved = alarmDao.save(alarm.getTenantId(), alarm);
-        publishEvictEvent(new AlarmTypesCacheEvictEvent(alarm.getTenantId()));
         List<EntityId> propagatedEntitiesList = createEntityAlarmRecords(saved);
         return new AlarmOperationResult(saved, true, true, propagatedEntitiesList);
     }
@@ -397,13 +407,14 @@ public class BaseAlarmService extends AbstractCachedEntityService<TenantId, Arra
     }
 
     @Override
-    public List<EntitySubtype> findAlarmTypesByTenantId(TenantId tenantId) {
+    public PageData<EntitySubtype> findAlarmTypesByTenantId(TenantId tenantId, PageLink pageLink) {
         log.trace("Executing findAlarmTypesByTenantId, tenantId [{}]", tenantId);
         validateId(tenantId, INCORRECT_TENANT_ID + tenantId);
-        return cache.getAndPutInTransaction(tenantId, () ->
+        if (DEFAULT_ALARM_TYPES_PAGE_LINK.equals(pageLink)) {
-                alarmDao.findTenantAlarmTypes(tenantId.getId()).stream()
+            return cache.getAndPutInTransaction(tenantId, () ->
-                        .sorted(Comparator.comparing(EntitySubtype::getType))
+                    alarmDao.findTenantAlarmTypes(tenantId.getId(), pageLink), false);
-                        .collect(Collectors.toCollection(ArrayList::new)), false);
+        }
+        return alarmDao.findTenantAlarmTypes(tenantId.getId(), pageLink);
     }
 
     private Alarm merge(Alarm existing, Alarm alarm) {

dao/src/main/java/org/thingsboard/server/dao/sql/alarm/AlarmRepository.java

@@ -18,8 +18,10 @@ package org.thingsboard.server.dao.sql.alarm;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
+import org.springframework.transaction.annotation.Transactional;
 import org.thingsboard.server.common.data.alarm.AlarmSeverity;
 import org.thingsboard.server.dao.model.sql.AlarmEntity;
 import org.thingsboard.server.dao.model.sql.AlarmInfoEntity;
@@ -346,6 +348,12 @@ public interface AlarmRepository extends JpaRepository<AlarmEntity, UUID> {
     @Query(value = "SELECT unassign_alarm(:t_id, :a_id, :a_ts)", nativeQuery = true)
     String unassignAlarm(@Param("t_id") UUID tenantId, @Param("a_id") UUID alarmId, @Param("a_ts") long unassignTime);
 
-    @Query(value = "SELECT DISTINCT a.type FROM alarm a WHERE a.tenant_id = :tenantId LIMIT 256", nativeQuery = true)
+    @Query(value = "SELECT at.type FROM alarm_types AS at WHERE at.tenant_id = :tenantId AND LOWER(at.type) LIKE LOWER(CONCAT('%', :searchText, '%'))", nativeQuery = true)
-    List<String> findTenantAlarmTypes(@Param("tenantId") UUID tenantId);
+    Page<String> findTenantAlarmTypes(@Param("tenantId") UUID tenantId, @Param("searchText") String searchText, Pageable pageable);
+
+    @Transactional
+    @Modifying
+    @Query(value = "DELETE FROM alarm_types AS at WHERE NOT EXISTS (SELECT 1 FROM alarm AS a WHERE a.tenant_id = at.tenant_id AND a.type = at.type) AND at.tenant_id = :tenantId AND at.type IN (:types)", nativeQuery = true)
+    int deleteTypeIfNoOneAlarmExists(@Param("tenantId") UUID tenantId, @Param("types") Set<String> types);
+
 }

dao/src/main/java/org/thingsboard/server/dao/sql/alarm/JpaAlarmDao.java

@@ -19,6 +19,7 @@ import com.fasterxml.jackson.databind.JsonNode;
 import com.google.common.util.concurrent.ListenableFuture;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Component;
@@ -69,6 +70,7 @@ import java.util.Set;
 import java.util.UUID;
 
 import static org.thingsboard.server.dao.DaoUtil.convertTenantEntityTypesToDto;
+import static org.thingsboard.server.dao.DaoUtil.toPageable;
 
 /**
  * Created by Valerii Sosliuk on 5/19/2017.
@@ -370,8 +372,19 @@ public class JpaAlarmDao extends JpaAbstractDao<AlarmEntity, Alarm> implements A
     }
 
     @Override
-    public List<EntitySubtype> findTenantAlarmTypes(UUID tenantId) {
+    public PageData<EntitySubtype> findTenantAlarmTypes(UUID tenantId, PageLink pageLink) {
-        return convertTenantEntityTypesToDto(tenantId, EntityType.ALARM, alarmRepository.findTenantAlarmTypes(tenantId));
+        Page<String> page = alarmRepository.findTenantAlarmTypes(tenantId, Objects.toString(pageLink.getTextSearch(), ""), toPageable(pageLink));
+        if (page.isEmpty()) {
+            return new PageData<>();
+        }
+
+        List<EntitySubtype> data = convertTenantEntityTypesToDto(tenantId, EntityType.ALARM, page.getContent());
+        return new PageData<>(data, page.getTotalPages(), page.getTotalElements(), page.hasNext());
+    }
+
+    @Override
+    public boolean removeAlarmTypes(UUID tenantId, Set<String> types) {
+        return alarmRepository.deleteTypeIfNoOneAlarmExists(tenantId, types) > 0;
     }
 
     private static String getPropagationTypes(AlarmPropagationInfo ap) {

dao/src/main/resources/sql/schema-entities.sql

@@ -64,6 +64,12 @@ CREATE TABLE IF NOT EXISTS alarm (
     cleared boolean
 );
 
+CREATE TABLE IF NOT EXISTS alarm_types (
+    tenant_id uuid NOT NULL,
+    type varchar(255) NOT NULL,
+    CONSTRAINT tenant_id_type_unq_key UNIQUE (tenant_id, type)
+);
+
 CREATE TABLE IF NOT EXISTS alarm_comment (
     id uuid NOT NULL,
     created_time bigint NOT NULL,

dao/src/main/resources/sql/schema-views-and-functions.sql

@@ -114,6 +114,7 @@ BEGIN
              a_details,
              a_propagate, a_propagate_to_owner, a_propagate_to_tenant, a_propagation_types,
              false, 0, false, 0, NULL, 0);
+        INSERT INTO alarm_types (tenant_id, type) VALUES (t_id, a_type) ON CONFLICT (tenant_id, type) DO NOTHING;
         SELECT * INTO result FROM alarm_info a WHERE a.id = a_id AND a.tenant_id = t_id;
         RETURN json_build_object('success', true, 'created', true, 'modified', true, 'alarm', row_to_json(result))::text;
     ELSE

rule-engine/rule-engine-api/src/main/java/org/thingsboard/rule/engine/api/RuleEngineAlarmService.java

@@ -35,12 +35,12 @@ import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.id.UserId;
 import org.thingsboard.server.common.data.page.PageData;
+import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.common.data.query.AlarmData;
 import org.thingsboard.server.common.data.query.AlarmDataQuery;
 import org.thingsboard.server.dao.alarm.AlarmOperationResult;
 
 import java.util.Collection;
-import java.util.List;
 
 /**
  * Created by ashvayka on 02.04.18.
@@ -114,5 +114,5 @@ public interface RuleEngineAlarmService {
 
     PageData<AlarmData> findAlarmDataByQueryForEntities(TenantId tenantId, AlarmDataQuery query, Collection<EntityId> orderedEntityIds);
 
-    List<EntitySubtype> findAlarmTypesByTenantId(TenantId tenantId);
+    PageData<EntitySubtype> findAlarmTypesByTenantId(TenantId tenantId, PageLink pageLink);
 }