Java tutorial
/** * Copyright 2016-2018 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.dashboard; import com.google.common.util.concurrent.Futures; import com.google.common.util.concurrent.ListenableFuture; import lombok.extern.slf4j.Slf4j; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import org.thingsboard.server.common.data.DashboardInfo; import org.thingsboard.server.common.data.EntityType; import org.thingsboard.server.common.data.id.CustomerId; import org.thingsboard.server.common.data.id.TenantId; import org.thingsboard.server.common.data.page.TextPageLink; import org.thingsboard.server.common.data.page.TimePageLink; import org.thingsboard.server.common.data.relation.EntityRelation; import org.thingsboard.server.common.data.relation.RelationTypeGroup; import org.thingsboard.server.dao.DaoUtil; import org.thingsboard.server.dao.model.nosql.DashboardInfoEntity; import org.thingsboard.server.dao.nosql.CassandraAbstractSearchTextDao; import org.thingsboard.server.dao.relation.RelationDao; import org.thingsboard.server.dao.util.NoSqlDao; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.UUID; import static com.datastax.driver.core.querybuilder.QueryBuilder.eq; import static org.thingsboard.server.dao.model.ModelConstants.DASHBOARD_BY_TENANT_AND_SEARCH_TEXT_COLUMN_FAMILY_NAME; import static org.thingsboard.server.dao.model.ModelConstants.DASHBOARD_COLUMN_FAMILY_NAME; import static org.thingsboard.server.dao.model.ModelConstants.DASHBOARD_TENANT_ID_PROPERTY; @Component @Slf4j @NoSqlDao public class CassandraDashboardInfoDao extends CassandraAbstractSearchTextDao<DashboardInfoEntity, DashboardInfo> implements DashboardInfoDao { @Autowired private RelationDao relationDao; @Override protected Class<DashboardInfoEntity> getColumnFamilyClass() { return DashboardInfoEntity.class; } @Override protected String getColumnFamilyName() { return DASHBOARD_COLUMN_FAMILY_NAME; } @Override public List<DashboardInfo> findDashboardsByTenantId(UUID tenantId, TextPageLink pageLink) { log.debug("Try to find dashboards by tenantId [{}] and pageLink [{}]", tenantId, pageLink); List<DashboardInfoEntity> dashboardEntities = findPageWithTextSearch(new TenantId(tenantId), DASHBOARD_BY_TENANT_AND_SEARCH_TEXT_COLUMN_FAMILY_NAME, Collections.singletonList(eq(DASHBOARD_TENANT_ID_PROPERTY, tenantId)), pageLink); log.trace("Found dashboards [{}] by tenantId [{}] and pageLink [{}]", dashboardEntities, tenantId, pageLink); return DaoUtil.convertDataList(dashboardEntities); } @Override public ListenableFuture<List<DashboardInfo>> findDashboardsByTenantIdAndCustomerId(UUID tenantId, UUID customerId, TimePageLink pageLink) { log.debug("Try to find dashboards by tenantId [{}], customerId[{}] and pageLink [{}]", tenantId, customerId, pageLink); ListenableFuture<List<EntityRelation>> relations = relationDao.findRelations(new TenantId(tenantId), new CustomerId(customerId), EntityRelation.CONTAINS_TYPE, RelationTypeGroup.DASHBOARD, EntityType.DASHBOARD, pageLink); return Futures.transformAsync(relations, input -> { List<ListenableFuture<DashboardInfo>> dashboardFutures = new ArrayList<>(input.size()); for (EntityRelation relation : input) { dashboardFutures.add(findByIdAsync(new TenantId(tenantId), relation.getTo().getId())); } return Futures.successfulAsList(dashboardFutures); }); } }