[traffic] Store TraFF message ID with decoded path

Signed-off-by: mvglasow <michael -at- vonglasow.com>

openlr/decoded_path.hpp

@@ -28,6 +28,7 @@ DECLARE_EXCEPTION(DecodedPathSaveError, RootException);
 struct DecodedPath
 {
   PartnerSegmentId m_segmentId;
+  std::string m_messageId;
   Path m_path;
 };
 

openlr/openlr_decoder.cpp

@@ -234,6 +234,7 @@ public:
     m_graph.ResetFakes();
 
     path.m_segmentId.Set(segment.m_segmentId);
+    path.m_messageId = segment.m_messageId;
 
     auto const & points = segment.GetLRPs();
     CHECK_GREATER(points.size(), 1, ("A segment cannot consist of less than two points"));
@@ -322,6 +323,7 @@ public:
     uint32_t constexpr kMaxProjectionCandidates = 5;
 
     path.m_segmentId.Set(segment.m_segmentId);
+    path.m_messageId = segment.m_messageId;
 
     auto const & points = segment.GetLRPs();
     CHECK_GREATER(points.size(), 1, ("A segment cannot consist of less than two points"));

openlr/openlr_model.hpp

@@ -151,6 +151,7 @@ struct LinearSegment
   LinearSegmentSource m_source = LinearSegmentSource::NotValid;
   // TODO(mgsergio): Think of using openlr::PartnerSegmentId
   uint32_t m_segmentId = kInvalidSegmentId;
+  std::string m_messageId = "";
   // TODO(mgsergio): Make sure that one segment cannot contain
   // more than one location reference.
   LinearLocationReference m_locationReference;