camera_commander.h

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// Copyright 2020 Continental AG
// All rights reserved.
//
// Software License Agreement (BSD 2-Clause Simplified License)
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
//  * Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above
//    copyright notice, this list of conditions and the following
//    disclaimer in the documentation and/or other materials provided
//    with the distribution.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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#ifndef CAMERA_COMMANDER__CAMERA_COMMANDER_H_
#define CAMERA_COMMANDER__CAMERA_COMMANDER_H_
 
#include <hfl_driver/HFLConfig.h>
#include <hfl_interface.h>
 
#include <dynamic_reconfigure/server.h>
#include <nodelet/nodelet.h>
 
#include <vector>
#include <string>
#include <memory>
 
#include "udp_com/UdpPacket.h"
#include "udp_com/UdpSend.h"
#include "udp_com/UdpSocket.h"
 
#include "ros/ros.h"
 
namespace hfl
{
enum commander_states
{
  state_probe = 0,
  state_init,
  state_done,
  state_error
};
 
enum error_codes
{
  no_error = 0,
  frame_socket_error,
  object_socket_error,
  lut_socket_error
};
 
class CameraCommander : public nodelet::Nodelet
{
public:
  CameraCommander();
 
  ~CameraCommander();
 
  void onInit();
 
  bool udpInit();
 
  bool createSocket(std::string computerAddr, std::string cameraAddr,
      uint16_t port, bool isMulticast);
 
private:
  ros::NodeHandle node_handler_;
 
  std::string namespace_;
 
  ros::Subscriber frame_data_subscriber_;
 
  ros::Subscriber object_data_subscriber_;
 
  ros::Subscriber lut_data_subscriber_;
 
  ros::ServiceClient udp_send_service_client_;
 
  ros::ServiceClient udp_socket_creation_service_client_;
 
  std::shared_ptr<dynamic_reconfigure::Server<hfl_driver::HFLConfig> > dynamic_parameters_server_;
 
  ros::Timer timer_;
 
  commander_states current_state_;
 
  commander_states previous_state_;
 
  error_codes error_status_;
 
  std::string ethernet_interface_;
 
  std::string camera_address_;
 
  std::string computer_address_;
 
  int frame_data_port_;
 
  int object_data_port_;
 
  std::shared_ptr<hfl::HflInterface> flash_;
 
  void setCommanderState(const ros::TimerEvent& timer_event);
 
  bool setFlash();
 
  void frameDataCallback(const udp_com::UdpPacket& udp_packet);
 
  void objectDataCallback(const udp_com::UdpPacket& udp_packet);
 
  void lutDataCallback(const udp_com::UdpPacket& udp_packet);
 
  bool sendCommand(const std::vector<uint8_t>& data);
 
  void dynamicPametersCallback(hfl_driver::HFLConfig& config, uint32_t level);
 
  error_codes checkForError();
 
 
  bool fixError(error_codes error);
};
 
}  // namespace hfl
 
#endif  // CAMERA_COMMANDER__CAMERA_COMMANDER_H_