content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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
   *
   *    https://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.apache.bigtop.manager.server.command.validator;
  
  import org.apache.bigtop.manager.common.enums.Command;
  import org.apache.bigtop.manager.dao.po.ComponentPO;
  import org.apache.bigtop.manager.dao.po.ServicePO;
  import org.apache.bigtop.manager.dao.query.ComponentQuery;
  import org.apache.bigtop.manager.dao.repository.ComponentDao;
  import org.apache.bigtop.manager.dao.repository.ServiceDao;
  import org.apache.bigtop.manager.server.command.CommandIdentifier;
  import org.apache.bigtop.manager.server.enums.ApiExceptionEnum;
  import org.apache.bigtop.manager.server.enums.CommandLevel;
  import org.apache.bigtop.manager.server.exception.ApiException;
  
  import org.apache.commons.collections4.CollectionUtils;
  
  import org.springframework.stereotype.Component;
  
  import jakarta.annotation.Resource;
  import java.util.List;
  
  @Component
  public class ClusterStartValidator implements CommandValidator {
  
      @Resource
      private ServiceDao serviceDao;
  
      @Resource
      private ComponentDao componentDao;
  
      @Override
      public List<CommandIdentifier> getCommandIdentifiers() {
          return List.of(new CommandIdentifier(CommandLevel.CLUSTER, Command.START));
      }
  
      @Override
      public void validate(ValidatorContext context) {
          Long clusterId = context.getCommandDTO().getClusterId();
          List<ServicePO> servicePOList = serviceDao.findByClusterId(clusterId);
  
          if (CollectionUtils.isEmpty(servicePOList)) {
              throw new ApiException(ApiExceptionEnum.CLUSTER_HAS_NO_SERVICES);
          }
  
          ComponentQuery componentQuery =
                  ComponentQuery.builder().clusterId(clusterId).build();
          List<ComponentPO> componentPOList = componentDao.findByQuery(componentQuery);
          if (CollectionUtils.isEmpty(componentPOList)) {
              throw new ApiException(ApiExceptionEnum.CLUSTER_HAS_NO_COMPONENTS);
          }
      }
  }
  