src/marnav/nmea/ais_helper.cpp

   1 #include <marnav/nmea/ais_helper.hpp>
   2
   3 namespace marnav::nmea
   4 {
   5 /// Creates and returns a container of VDM sentences, created from the specified
   6 /// payload.
   7 ///
   8 /// @param[in] payload The payload to create VDM sentences from.
   9 /// @param[in] seq_msg_id The optional sequence message ID to be configured for
  10 ///   the resulting sentences.
  11 /// @param[in] radio_channel Specifies which AIS radio channel to configure for
  12 ///   the resulting sentences.
  13 /// @return Container of NMEA sentences containing VDM sentences.
  14 std::vector<std::unique_ptr<nmea::sentence>> make_vdms(
  15         const std::vector<std::pair<std::string, uint32_t>> & payload,
  16         std::optional<uint32_t> seq_msg_id, ais_channel radio_channel)
  17 {
  18         std::vector<std::unique_ptr<nmea::sentence>> sentences;
  19
  20         for (uint32_t fragment = 0; fragment < payload.size(); ++fragment) {
  21                 auto sentence = std::make_unique<vdm>();
  22
  23                 sentence->set_n_fragments(payload.size());
  24                 sentence->set_fragment(fragment + 1);
  25                 sentence->set_radio_channel(radio_channel);
  26                 sentence->set_payload(payload[fragment]);
  27
  28                 if (seq_msg_id)
  29                         sentence->set_seq_msg_id(*seq_msg_id);
  30
  31                 sentences.push_back(std::move(sentence));
  32         }
  33
  34         return sentences;
  35 }
  36 }