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
   *
   *    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.apache.dolphinscheduler.api.service.impl;
  
  import org.apache.dolphinscheduler.api.dto.ClusterDto;
  import org.apache.dolphinscheduler.api.enums.Status;
  import org.apache.dolphinscheduler.api.exceptions.ServiceException;
  import org.apache.dolphinscheduler.api.k8s.K8sManager;
  import org.apache.dolphinscheduler.api.service.ClusterService;
  import org.apache.dolphinscheduler.api.utils.PageInfo;
  import org.apache.dolphinscheduler.common.constants.Constants;
  import org.apache.dolphinscheduler.common.utils.CodeGenerateUtils;
  import org.apache.dolphinscheduler.dao.entity.Cluster;
  import org.apache.dolphinscheduler.dao.entity.K8sNamespace;
  import org.apache.dolphinscheduler.dao.entity.User;
  import org.apache.dolphinscheduler.dao.mapper.ClusterMapper;
  import org.apache.dolphinscheduler.dao.mapper.K8sNamespaceMapper;
  import org.apache.dolphinscheduler.service.utils.ClusterConfUtils;
  
  import org.apache.commons.collections4.CollectionUtils;
  import org.apache.commons.lang3.StringUtils;
  
  import java.util.Collections;
  import java.util.Date;
  import java.util.List;
  import java.util.stream.Collectors;
  
  import lombok.extern.slf4j.Slf4j;
  
  import org.springframework.beans.BeanUtils;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Transactional;
  
  import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
  import com.baomidou.mybatisplus.core.metadata.IPage;
  import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
  
  /**
   * cluster definition service impl
   */
  @Service
  @Slf4j
  public class ClusterServiceImpl extends BaseServiceImpl implements ClusterService {
  
      @Autowired
      private ClusterMapper clusterMapper;
  
      @Autowired
      private K8sManager k8sManager;
  
      @Autowired
      private K8sNamespaceMapper k8sNamespaceMapper;
  
      /**
       * create cluster
       *
       * @param loginUser login user
       * @param name      cluster name
       * @param config    cluster config
       * @param desc      cluster desc
       */
      @Transactional
      @Override
      public Long createCluster(User loginUser, String name, String config, String desc) {
          if (isNotAdmin(loginUser)) {
              throw new ServiceException(Status.USER_NO_OPERATION_PERM);
          }
  
          checkParams(name, config);
  
          Cluster clusterExistByName = clusterMapper.queryByClusterName(name);
          if (clusterExistByName != null) {
              throw new ServiceException(Status.CLUSTER_NAME_EXISTS, name);
          }
  
          Cluster cluster = new Cluster();
          cluster.setName(name);
          cluster.setConfig(config);
          cluster.setDescription(desc);
          cluster.setOperator(loginUser.getId());
          cluster.setCreateTime(new Date());
          cluster.setUpdateTime(new Date());
          cluster.setCode(CodeGenerateUtils.getInstance().genCode());
  
          if (clusterMapper.insert(cluster) > 0) {
              return cluster.getCode();
          }
          throw new ServiceException(Status.CREATE_CLUSTER_ERROR);
      }
  
      /**
       * query cluster paging
       *
       * @param pageNo    page number
       * @param searchVal search value
       * @param pageSize  page size
       * @return cluster list page
       */
      @Override
      public PageInfo<ClusterDto> queryClusterListPaging(Integer pageNo, Integer pageSize, String searchVal) {
  
          Page<Cluster> page = new Page<>(pageNo, pageSize);
  
          IPage<Cluster> clusterIPage = clusterMapper.queryClusterListPaging(page, searchVal);
  
          PageInfo<ClusterDto> pageInfo = new PageInfo<>(pageNo, pageSize);
          pageInfo.setTotal((int) clusterIPage.getTotal());
  
          if (CollectionUtils.isEmpty(clusterIPage.getRecords())) {
              return pageInfo;
          }
          List<ClusterDto> dtoList = clusterIPage.getRecords().stream().map(cluster -> {
              ClusterDto dto = new ClusterDto();
              BeanUtils.copyProperties(cluster, dto);
              return dto;
          }).collect(Collectors.toList());
          pageInfo.setTotalList(dtoList);
          return pageInfo;
      }
  
      /**
       * query all cluster
       *
       * @return all cluster list
       */
      @Override
      public List<ClusterDto> queryAllClusterList() {
          List<Cluster> clusterList = clusterMapper.queryAllClusterList();
          if (CollectionUtils.isEmpty(clusterList)) {
              return Collections.emptyList();
          }
  
          return clusterList.stream()
                  .map(cluster -> {
                      ClusterDto dto = new ClusterDto();
                      // todo: Don't use copy
                      BeanUtils.copyProperties(cluster, dto);
                      return dto;
                  }).collect(Collectors.toList());
      }
  
      /**
       * query cluster
       *
       * @param code cluster code
       */
      @Override
      public ClusterDto queryClusterByCode(Long code) {
  
          Cluster cluster = clusterMapper.queryByClusterCode(code);
  
          if (cluster == null) {
              throw new ServiceException(Status.QUERY_CLUSTER_BY_CODE_ERROR, code);
          }
          ClusterDto dto = new ClusterDto();
          BeanUtils.copyProperties(cluster, dto);
          return dto;
      }
  
      /**
       * query cluster
       *
       * @param name cluster name
       */
      @Override
      public ClusterDto queryClusterByName(String name) {
  
          Cluster cluster = clusterMapper.queryByClusterName(name);
          if (cluster == null) {
              throw new ServiceException(Status.QUERY_CLUSTER_BY_NAME_ERROR, name);
          }
          ClusterDto dto = new ClusterDto();
          BeanUtils.copyProperties(cluster, dto);
          return dto;
      }
  
      /**
       * delete cluster
       *
       * @param loginUser login user
       * @param code      cluster code
       */
      @Override
      public void deleteClusterByCode(User loginUser, Long code) {
          if (isNotAdmin(loginUser)) {
              throw new ServiceException(Status.USER_NO_OPERATION_PERM);
          }
  
          Long relatedNamespaceNumber = k8sNamespaceMapper
                  .selectCount(new QueryWrapper<K8sNamespace>().lambda().eq(K8sNamespace::getClusterCode, code));
  
          if (relatedNamespaceNumber > 0) {
              throw new ServiceException(Status.DELETE_CLUSTER_RELATED_NAMESPACE_EXISTS);
          }
  
          int delete = clusterMapper.deleteByCode(code);
          if (delete > 0) {
              return;
          }
          throw new ServiceException(Status.DELETE_CLUSTER_ERROR);
      }
  
      /**
       * update cluster
       *
       * @param loginUser login user
       * @param code      cluster code
       * @param name      cluster name
       * @param config    cluster config
       * @param desc      cluster desc
       */
      @Override
      public Cluster updateClusterByCode(User loginUser,
                                         Long code,
                                         String name,
                                         String config,
                                         String desc) {
          if (isNotAdmin(loginUser)) {
              throw new ServiceException(Status.USER_NO_OPERATION_PERM);
          }
  
          if (checkDescriptionLength(desc)) {
              throw new ServiceException(Status.DESCRIPTION_TOO_LONG_ERROR);
          }
  
          checkParams(name, config);
  
          Cluster clusterExistByName = clusterMapper.queryByClusterName(name);
          if (clusterExistByName != null && !clusterExistByName.getCode().equals(code)) {
              throw new ServiceException(Status.CLUSTER_NAME_EXISTS, name);
          }
  
          Cluster clusterExist = clusterMapper.queryByClusterCode(code);
          if (clusterExist == null) {
              throw new ServiceException(Status.CLUSTER_NOT_EXISTS, name);
          }
  
          if (!Constants.K8S_LOCAL_TEST_CLUSTER_CODE.equals(clusterExist.getCode())
                  && !config.equals(ClusterConfUtils.getK8sConfig(clusterExist.getConfig()))) {
              try {
                  k8sManager.getAndUpdateK8sClient(code, true);
              } catch (Exception e) {
                  throw new ServiceException(Status.K8S_CLIENT_OPS_ERROR, name);
              }
          }
  
          // update cluster
          // need not update relation
          clusterExist.setConfig(config);
          clusterExist.setName(name);
          clusterExist.setDescription(desc);
          clusterMapper.updateById(clusterExist);
          return clusterExist;
      }
  
      /**
       * verify cluster name
       *
       * @param clusterName cluster name
       * @return true if the cluster name not exists, otherwise return false
       */
      @Override
      public void verifyCluster(String clusterName) {
  
          if (StringUtils.isEmpty(clusterName)) {
              throw new ServiceException(Status.CLUSTER_NAME_IS_NULL);
          }
  
          Cluster cluster = clusterMapper.queryByClusterName(clusterName);
          if (cluster != null) {
              throw new ServiceException(Status.CLUSTER_NAME_EXISTS);
          }
      }
  
      protected void checkParams(String name, String config) {
          if (StringUtils.isEmpty(name)) {
              throw new ServiceException(Status.CLUSTER_NAME_IS_NULL);
          }
          if (StringUtils.isEmpty(config)) {
              throw new ServiceException(Status.CLUSTER_CONFIG_IS_NULL);
          }
      }
  
  }
  