content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.csp.sentinel.dashboard.controller;
  
  import com.alibaba.csp.sentinel.dashboard.discovery.AppManagement;
  import com.alibaba.csp.sentinel.util.StringUtil;
  
  import com.alibaba.csp.sentinel.dashboard.discovery.MachineDiscovery;
  import com.alibaba.csp.sentinel.dashboard.discovery.MachineInfo;
  import com.alibaba.csp.sentinel.dashboard.domain.Result;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.http.MediaType;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RequestParam;
  import org.springframework.web.bind.annotation.ResponseBody;
  
  @Controller
  @RequestMapping(value = "/registry", produces = MediaType.APPLICATION_JSON_VALUE)
  public class MachineRegistryController {
  
      private final Logger logger = LoggerFactory.getLogger(MachineRegistryController.class);
  
      @Autowired
      private AppManagement appManagement;
  
      @ResponseBody
      @RequestMapping("/machine")
      public Result<?> receiveHeartBeat(String app, @RequestParam(value = "app_type", required = false, defaultValue = "0") Integer appType, Long version, String v, String hostname, String ip, Integer port) {
          if (app == null) {
              app = MachineDiscovery.UNKNOWN_APP_NAME;
          }
          if (ip == null) {
              return Result.ofFail(-1, "ip can't be null");
          }
          if (port == null) {
              return Result.ofFail(-1, "port can't be null");
          }
          if (port == -1) {
              logger.info("Receive heartbeat from " + ip + " but port not set yet");
              return Result.ofFail(-1, "your port not set yet");
          }
          String sentinelVersion = StringUtil.isEmpty(v) ? "unknown" : v;
          version = version == null ? System.currentTimeMillis() : version;
          try {
              MachineInfo machineInfo = new MachineInfo();
              machineInfo.setApp(app);
              machineInfo.setAppType(appType);
              machineInfo.setHostname(hostname);
              machineInfo.setIp(ip);
              machineInfo.setPort(port);
              machineInfo.setHeartbeatVersion(version);
              machineInfo.setLastHeartbeat(System.currentTimeMillis());
              machineInfo.setVersion(sentinelVersion);
              appManagement.addMachine(machineInfo);
              return Result.ofSuccessMsg("success");
          } catch (Exception e) {
              logger.error("Receive heartbeat error", e);
              return Result.ofFail(-1, e.getMessage());
          }
      }
  }
  