socket_manager.h

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/******************************************************************************
 * Copyright 2017 The Apollo Authors. All Rights Reserved.
 *
 * 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.
 *****************************************************************************/
 
#pragma once
 
#include <map>
#include <set>
#include <string>
#include <utility>
#include <vector>
 
#include "nlohmann/json.hpp"
 
#include "modules/dreamview_plus/proto/data_handler.pb.h"
 
#include "cyber/common/log.h"
#include "cyber/service_discovery/topology_manager.h"
#include "modules/dreamview/backend/common/handlers/websocket_handler.h"
#include "modules/dreamview_plus/backend/dv_plugin/dv_plugin_manager.h"
#include "modules/dreamview_plus/backend/updater/updater_manager.h"
namespace apollo {
namespace dreamview {
 
using apollo::dreamview::ChannelInfo;
using apollo::dreamview::DataHandlerConf;
using apollo::dreamview::DataHandlerInfo;
using Json = nlohmann::json;
 
class SocketManager {
 public:
  SocketManager(WebSocketHandler *websocket, UpdaterManager *updater_manager,
                DvPluginManager *dv_plugin_manager);
  void BrocastDataHandlerConf(bool clear_channel_msg = false);
 
 private:
  void RegisterDataHandlers();
  // bool RegisterDataHandler(const DataHandlerInfo &data_handler_info);
  //  The conf stores data-proto-handler related relationship
  DataHandlerConf data_handler_base_conf_;
  DataHandlerConf data_handler_conf_;
  bool enabled_;
  // Used to obtain deduplication of all channels.
  std::map<std::string, int> complete_channel_count_;
  // Used to deduplicate channels under data handler info.
  std::map<std::string, int> data_handler_channel_count_;
  WebSocketHandler *websocket_ = nullptr;
  UpdaterManager *updater_manager_ = nullptr;
  DvPluginManager *dv_plugin_manager_ = nullptr;
  void RegisterMessageHandlers();
  bool Subscribe(const Json &json);
  bool UnSubscribe(const Json &json);
  bool GetDataUpdaterChannels(const std::string &updater_path,
                              std::vector<std::string> *channels);
  bool ModifyUpdaterChannels(const std::string &updater_path,
                             const std::string &channel_name,
                             const std::string &operation);
  Json GetDataHandlerInfo();
  Json ClearDataHandlerChannelMsgs();
  void RefreshChannels(const apollo::cyber::proto::ChangeMsg &change_msg);
  bool UpdateCyberChannels(const apollo::cyber::proto::ChangeMsg &change_msg,
                           DataHandlerInfo &updater_info);
  void RefreshDataHandlerChannels(
      const apollo::cyber::proto::ChangeMsg &change_msg,
      DataHandlerConf &data_handler_conf_diff, bool &flag);
  bool UpdateUpdaterInfo(const apollo::cyber::proto::ChangeMsg &change_msg,
                         DataHandlerInfo &updater_info);
};
 
}  // namespace dreamview
}  // namespace apollo