src/marnav/ais/message_13.cpp

   1 #include <marnav/ais/message_13.hpp>
   2
   3 namespace marnav
   4 {
   5 namespace ais
   6 {
   7 constexpr message_id message_13::ID;
   8 constexpr std::size_t message_13::SIZE_BITS_MIN;
   9 constexpr std::size_t message_13::SIZE_BITS_MAX;
  10
  11 message_13::message_13()
  12         : message(ID)
  13 {
  14 }
  15
  16 message_13::message_13(const raw & bits)
  17         : message(ID)
  18 {
  19         if ((bits.size() < SIZE_BITS_MIN) || (bits.size() > SIZE_BITS_MAX))
  20                 throw std::invalid_argument{"invalid number of bits in ais/message_13"};
  21         read_data(bits);
  22 }
  23
  24 void message_13::read_data(const raw & bits)
  25 {
  26         get(bits, repeat_indicator);
  27         get(bits, mmsi);
  28         get(bits, mmsi_1);
  29         get(bits, mmsi_seq_1);
  30
  31         if (bits.size() > SIZE_BITS_MIN + 1 * 32) {
  32                 get(bits, mmsi_2);
  33                 get(bits, mmsi_seq_2);
  34         }
  35         if (bits.size() > SIZE_BITS_MIN + 2 * 32) {
  36                 get(bits, mmsi_3);
  37                 get(bits, mmsi_seq_3);
  38         }
  39         if (bits.size() > SIZE_BITS_MIN + 3 * 32) {
  40                 get(bits, mmsi_4);
  41                 get(bits, mmsi_seq_4);
  42         }
  43 }
  44
  45 raw message_13::get_data() const
  46 {
  47         raw bits(SIZE_BITS_MIN);
  48         bits.set(type(), 0, 6);
  49         set(bits, repeat_indicator);
  50         set(bits, mmsi);
  51         set(bits, mmsi_1);
  52         set(bits, mmsi_seq_1);
  53         if (mmsi_2 != 0) {
  54                 set(bits, mmsi_2);
  55                 set(bits, mmsi_seq_2);
  56         }
  57         if (mmsi_3 != 0) {
  58                 set(bits, mmsi_3);
  59                 set(bits, mmsi_seq_3);
  60         }
  61         if (mmsi_4 != 0) {
  62                 set(bits, mmsi_4);
  63                 set(bits, mmsi_seq_4);
  64         }
  65         return bits;
  66 }
  67 }
  68 }