Request SNMP devices' ids with pagination

@@ -23,7 +23,6 @@ import com.google.common.util.concurrent.ListenableFuture;
 import com.google.common.util.concurrent.MoreExecutors;
 import com.google.protobuf.ByteString;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.cache.CacheManager;
 import org.springframework.stereotype.Service;
 import org.springframework.util.StringUtils;
 import org.thingsboard.common.util.JacksonUtil;
@@ -46,6 +45,8 @@ import org.thingsboard.server.common.data.id.DeviceId;
 import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.FirmwareId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.page.PageData;
+import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.common.data.relation.EntityRelation;
 import org.thingsboard.server.common.data.security.DeviceCredentials;
 import org.thingsboard.server.common.data.security.DeviceCredentialsType;
@@ -62,7 +63,6 @@ import org.thingsboard.server.dao.device.provision.ProvisionRequest;
 import org.thingsboard.server.dao.device.provision.ProvisionResponse;
 import org.thingsboard.server.dao.firmware.FirmwareService;
 import org.thingsboard.server.dao.relation.RelationService;
-import org.thingsboard.server.dao.resource.ResourceService;
 import org.thingsboard.server.dao.tenant.TbTenantProfileCache;
 import org.thingsboard.server.gen.transport.TransportProtos;
 import org.thingsboard.server.gen.transport.TransportProtos.DeviceInfoProto;
@@ -72,9 +72,9 @@ import org.thingsboard.server.gen.transport.TransportProtos.GetEntityProfileRequ
 import org.thingsboard.server.gen.transport.TransportProtos.GetEntityProfileResponseMsg;
 import org.thingsboard.server.gen.transport.TransportProtos.GetOrCreateDeviceFromGatewayRequestMsg;
 import org.thingsboard.server.gen.transport.TransportProtos.GetOrCreateDeviceFromGatewayResponseMsg;
+import org.thingsboard.server.gen.transport.TransportProtos.GetResourceRequestMsg;
 import org.thingsboard.server.gen.transport.TransportProtos.GetSnmpDevicesRequestMsg;
 import org.thingsboard.server.gen.transport.TransportProtos.GetSnmpDevicesResponseMsg;
-import org.thingsboard.server.gen.transport.TransportProtos.GetResourceRequestMsg;
 import org.thingsboard.server.gen.transport.TransportProtos.ProvisionDeviceRequestMsg;
 import org.thingsboard.server.gen.transport.TransportProtos.TransportApiRequestMsg;
 import org.thingsboard.server.gen.transport.TransportProtos.TransportApiResponseMsg;
@@ -91,7 +91,6 @@ import org.thingsboard.server.service.queue.TbClusterService;
 import org.thingsboard.server.service.resource.TbResourceService;
 import org.thingsboard.server.service.state.DeviceStateService;
 
-import java.util.List;
 import java.util.Optional;
 import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
@@ -433,13 +432,15 @@ public class DefaultTransportApiService implements TransportApiService {
         return Futures.immediateFuture(TransportApiResponseMsg.newBuilder().setResourceResponseMsg(builder).build());
     }
 
-    // TODO: request snmp devices with pagination
     private ListenableFuture<TransportApiResponseMsg> handle(GetSnmpDevicesRequestMsg requestMsg) {
-        List<UUID> result = deviceService.findDevicesIdsByDeviceProfileTransportType(DeviceTransportType.SNMP);
+        PageLink pageLink = new PageLink(requestMsg.getPageSize(), requestMsg.getPage());
+        PageData<UUID> result = deviceService.findDevicesIdsByDeviceProfileTransportType(DeviceTransportType.SNMP, pageLink);
+
         GetSnmpDevicesResponseMsg responseMsg = GetSnmpDevicesResponseMsg.newBuilder()
-                .addAllIds(result.stream()
+                .addAllIds(result.getData().stream()
                         .map(UUID::toString)
                         .collect(Collectors.toList()))
+                .setHasNextPage(result.hasNext())
                 .build();
 
         return Futures.immediateFuture(TransportApiResponseMsg.newBuilder()

@@ -95,7 +95,7 @@ public interface DeviceService {
 
     Device saveDevice(ProvisionRequest provisionRequest, DeviceProfile profile);
 
-    List<UUID> findDevicesIdsByDeviceProfileTransportType(DeviceTransportType transportType);
+    PageData<UUID> findDevicesIdsByDeviceProfileTransportType(DeviceTransportType transportType, PageLink pageLink);
 
     Device assignDeviceToEdge(TenantId tenantId, DeviceId deviceId, EdgeId edgeId);
 

@@ -268,11 +268,13 @@ message GetDeviceCredentialsResponseMsg {
 }
 
 message GetSnmpDevicesRequestMsg {
-
+  int32 page = 1;
+  int32 pageSize = 2;
 }
 
 message GetSnmpDevicesResponseMsg {
   repeated string ids = 1;
+  bool hasNextPage = 2;
 }
 
 message EntityUpdateMsg {

@@ -28,6 +28,7 @@ import org.thingsboard.server.common.transport.util.DataDecodingEncodingService;
 import org.thingsboard.server.gen.transport.TransportProtos;
 import org.thingsboard.server.queue.util.TbSnmpTransportComponent;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
 import java.util.stream.Collectors;
@@ -81,12 +82,29 @@ public class ProtoTransportEntityService {
     }
 
     public List<UUID> getAllSnmpDevicesIds() {
-        TransportProtos.GetSnmpDevicesResponseMsg devicesIdsResponse = transportService.getSnmpDevicesIds(
-                TransportProtos.GetSnmpDevicesRequestMsg.getDefaultInstance()
-        );
+        List<UUID> result = new ArrayList<>();
+
+        int page = 0;
+        int pageSize = 512;
+        boolean hasNextPage = true;
+
+        while (hasNextPage) {
+            TransportProtos.GetSnmpDevicesResponseMsg responseMsg = requestSnmpDevicesIds(page, pageSize);
+            result.addAll(responseMsg.getIdsList().stream()
+                    .map(UUID::fromString)
+                    .collect(Collectors.toList()));
+            hasNextPage = responseMsg.getHasNextPage();
+            page++;
+        }
+
+        return result;
+    }
 
-        return devicesIdsResponse.getIdsList().stream()
-                .map(UUID::fromString)
-                .collect(Collectors.toList());
+    private TransportProtos.GetSnmpDevicesResponseMsg requestSnmpDevicesIds(int page, int pageSize) {
+        TransportProtos.GetSnmpDevicesRequestMsg requestMsg = TransportProtos.GetSnmpDevicesRequestMsg.newBuilder()
+                .setPage(page)
+                .setPageSize(pageSize)
+                .build();
+        return transportService.getSnmpDevicesIds(requestMsg);
     }
 }

@@ -23,7 +23,6 @@ import org.thingsboard.server.common.data.EntitySubtype;
 import org.thingsboard.server.common.data.id.TenantId;
 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.dao.Dao;
 import org.thingsboard.server.dao.TenantEntityDao;
 
@@ -220,7 +219,7 @@ public interface DeviceDao extends Dao<Device>, TenantEntityDao {
      */
     PageData<Device> findDevicesByTenantIdAndProfileId(UUID tenantId, UUID profileId, PageLink pageLink);
 
-    List<UUID> findDevicesIdsByDeviceProfileTransportType(DeviceTransportType transportType);
+    PageData<UUID> findDevicesIdsByDeviceProfileTransportType(DeviceTransportType transportType, PageLink pageLink);
 
     /**
      * Find devices by tenantId, edgeId and page link.

@@ -42,7 +42,6 @@ import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.EntityView;
 import org.thingsboard.server.common.data.Firmware;
 import org.thingsboard.server.common.data.Tenant;
-import org.thingsboard.server.common.data.asset.Asset;
 import org.thingsboard.server.common.data.device.DeviceSearchQuery;
 import org.thingsboard.server.common.data.device.credentials.BasicMqttCredentials;
 import org.thingsboard.server.common.data.device.data.CoapDeviceTransportConfiguration;
@@ -62,7 +61,6 @@ import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 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.common.data.relation.EntityRelation;
 import org.thingsboard.server.common.data.relation.EntitySearchDirection;
 import org.thingsboard.server.common.data.relation.RelationTypeGroup;
@@ -580,8 +578,8 @@ public class DeviceServiceImpl extends AbstractEntityService implements DeviceSe
     }
 
     @Override
-    public List<UUID> findDevicesIdsByDeviceProfileTransportType(DeviceTransportType transportType) {
-        return deviceDao.findDevicesIdsByDeviceProfileTransportType(transportType);
+    public PageData<UUID> findDevicesIdsByDeviceProfileTransportType(DeviceTransportType transportType, PageLink pageLink) {
+        return deviceDao.findDevicesIdsByDeviceProfileTransportType(transportType, pageLink);
     }
 
     @Override

@@ -215,5 +215,5 @@ public interface DeviceRepository extends PagingAndSortingRepository<DeviceEntit
     @Query("SELECT d.id FROM DeviceEntity d " +
             "INNER JOIN DeviceProfileEntity p ON d.deviceProfileId = p.id " +
             "WHERE p.transportType = :transportType")
-    List<UUID> findIdsByDeviceProfileTransportType(@Param("transportType") DeviceTransportType transportType);
+    Page<UUID> findIdsByDeviceProfileTransportType(@Param("transportType") DeviceTransportType transportType, Pageable pageable);
 }

@@ -29,7 +29,6 @@ import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.TenantId;
 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.dao.DaoUtil;
 import org.thingsboard.server.dao.device.DeviceDao;
 import org.thingsboard.server.dao.model.sql.DeviceEntity;
@@ -119,8 +118,8 @@ public class JpaDeviceDao extends JpaAbstractSearchTextDao<DeviceEntity, Device>
     }
 
     @Override
-    public List<UUID> findDevicesIdsByDeviceProfileTransportType(DeviceTransportType transportType) {
-        return deviceRepository.findIdsByDeviceProfileTransportType(transportType);
+    public PageData<UUID> findDevicesIdsByDeviceProfileTransportType(DeviceTransportType transportType, PageLink pageLink) {
+        return DaoUtil.pageToPageData(deviceRepository.findIdsByDeviceProfileTransportType(transportType, DaoUtil.toPageable(pageLink)));
     }
 
     @Override