ddtEncDec.hpp

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// @copyright
// (c) Copyright ESO 2020
// All Rights Reserved
// ESO (eso.org) is an Intergovernmental Organization, and therefore special
// legal conditions apply.
//
// @file ddtEncDec.hpp
// @brief DDT EncDec. Base class for encoding / decoding of data samples.
//
// Base class for encoding / decoding of data samples.
//
// @author Christoph Bortlisz, CGI
// @since  2020/05/22
//
 
#ifndef DDT_DATAVISUALISATION_DATATRANSFER_DATATRANSFERLIB_ENCDEC_HPP
#define DDT_DATAVISUALISATION_DATATRANSFER_DATATRANSFERLIB_ENCDEC_HPP
 
#include <sys/time.h>
 
#include <iostream>
 
struct WcsInformation {
  float reference_point_x;
  float reference_point_y;
  float ra_reference_point;
  float dec_reference_point;
  float arcsec_pixel_x;
  float arcsec_pixel_y;
  float rotation_x_axis;
  float cd1_1;
  float cd1_2;
  float cd2_1;
  float cd2_2;
  float epoch_equinox;
  std::string type_1;
  std::string type_2;
};
 
struct MetaDataBase {
  uint32_t bytes_per_pixel;
  uint32_t number_dimensions;
  std::string utc_timestamp;
  bool complete_flag;
  bool last_segment;
  bool byte_order_little_endian;
  uint32_t data_type;
  std::string description;
};
 
class DdtEncDec {
 public:
  explicit DdtEncDec();
  virtual ~DdtEncDec() = 0;
 
  virtual void set_meta_data_length(const int mdl);
 
  void set_topic_id(const int ti);
 
  virtual int get_meta_data_length();
 
  virtual int get_topic_id();
 
  virtual uint32_t get_bytes_per_pixel() const;
 
  virtual uint32_t get_number_dimensions() const;
 
  virtual std::string get_utc_timestamp() const;
 
  virtual bool get_complete_flag() const;
 
  virtual bool get_last_segment() const;
 
  virtual bool get_byte_order_little_endian() const;
 
  virtual uint32_t get_data_type() const;
 
  virtual std::string get_description() const;
 
  virtual float get_reference_point_x() const;
 
  virtual float get_reference_point_y() const;
 
  virtual float get_ra_reference_point() const;
 
  virtual float get_dec_reference_point() const;
 
  virtual float get_arcsec_pixel_x() const;
 
  virtual float get_arcsec_pixel_y() const;
 
  virtual float get_rotation_x() const;
 
  virtual float get_cd1_1() const;
 
  virtual float get_cd1_2() const;
 
  virtual float get_cd2_1() const;
 
  virtual float get_cd2_2() const;
 
  virtual float get_epoch_equinox() const;
 
  virtual std::string get_type_1() const;
 
  virtual std::string get_type_2() const;
 
 protected:
  std::string get_current_time() const;
 
  int topic_id = 0;
 
  int meta_data_length = 0;
};
 
#endif  // DDT_DATAVISUALISATION_DATATRANSFER_DATATRANSFERLIB_ENCDEC_HPP