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.controller;
  
  import static org.apache.dolphinscheduler.api.enums.Status.LIST_MASTERS_ERROR;
  import static org.apache.dolphinscheduler.api.enums.Status.LIST_WORKERS_ERROR;
  import static org.apache.dolphinscheduler.api.enums.Status.QUERY_DATABASE_STATE_ERROR;
  
  import org.apache.dolphinscheduler.api.exceptions.ApiException;
  import org.apache.dolphinscheduler.api.service.MonitorService;
  import org.apache.dolphinscheduler.api.utils.Result;
  import org.apache.dolphinscheduler.common.constants.Constants;
  import org.apache.dolphinscheduler.common.model.Server;
  import org.apache.dolphinscheduler.common.model.WorkerServerModel;
  import org.apache.dolphinscheduler.dao.entity.User;
  import org.apache.dolphinscheduler.dao.plugin.api.monitor.DatabaseMetrics;
  
  import java.util.List;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.http.HttpStatus;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RequestAttribute;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.ResponseStatus;
  import org.springframework.web.bind.annotation.RestController;
  
  import io.swagger.v3.oas.annotations.Operation;
  import io.swagger.v3.oas.annotations.Parameter;
  import io.swagger.v3.oas.annotations.tags.Tag;
  
  /**
   * monitor controller
   */
  @Tag(name = "MONITOR_TAG")
  @RestController
  @RequestMapping("/monitor")
  public class MonitorController extends BaseController {
  
      @Autowired
      private MonitorService monitorService;
  
      /**
       * master list
       *
       * @param loginUser login user
       * @return master list
       */
      @Operation(summary = "listMaster", description = "MASTER_LIST_NOTES")
      @GetMapping(value = "/masters")
      @ResponseStatus(HttpStatus.OK)
      @ApiException(LIST_MASTERS_ERROR)
      public Result<List<Server>> listMaster(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser) {
          List<Server> servers = monitorService.queryMaster(loginUser);
          return Result.success(servers);
      }
  
      /**
       * worker list
       *
       * @param loginUser login user
       * @return worker information list
       */
      @Operation(summary = "listWorker", description = "WORKER_LIST_NOTES")
      @GetMapping(value = "/workers")
      @ResponseStatus(HttpStatus.OK)
      @ApiException(LIST_WORKERS_ERROR)
      public Result<List<WorkerServerModel>> listWorker(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser) {
          List<WorkerServerModel> workerServerModels = monitorService.queryWorker(loginUser);
          return Result.success(workerServerModels);
      }
  
      /**
       * query database state
       *
       * @param loginUser login user
       * @return database state
       */
      @Operation(summary = "queryDatabaseState", description = "QUERY_DATABASE_STATE_NOTES")
      @GetMapping(value = "/databases")
      @ResponseStatus(HttpStatus.OK)
      @ApiException(QUERY_DATABASE_STATE_ERROR)
      public Result<List<DatabaseMetrics>> queryDatabaseState(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser) {
          List<DatabaseMetrics> databaseMetrics = monitorService.queryDatabaseState(loginUser);
          return Result.success(databaseMetrics);
      }
  
  }
  