add helper to format IEs for lager

src/pfcp_packet.erl

@@ -9,6 +9,7 @@
 -export([encode/1, encode_ies/1,
 	 decode/1, decode/2, decode_ies/1, decode_ies/2,
 	 msg_description_v1/1, to_map/1]).
+-export([lager_pr/1]).
 
 -compile([{parse_transform, cut}, bin_opt_info]).
 -compile({inline,[decode_v1_grouped/1]}).
@@ -124,6 +125,50 @@ ies_to_map(IEs) when is_list(IEs) ->
 ies_to_map(IEs) ->
     IEs.
 
+lager_pr(_, {Type, Group})
+  when Type =:= create_pdr orelse
+       Type =:= pdi orelse
+       Type =:= create_far orelse
+       Type =:= forwarding_parameters orelse
+       Type =:= duplicating_parameters orelse
+       Type =:= create_urr orelse
+       Type =:= create_qer orelse
+       Type =:= created_pdr orelse
+       Type =:= update_pdr orelse
+       Type =:= update_far orelse
+       Type =:= update_forwarding_parameters orelse
+       Type =:= update_bar_response orelse
+       Type =:= update_urr orelse
+       Type =:= update_qer orelse
+       Type =:= remove_pdr orelse
+       Type =:= remove_far orelse
+       Type =:= remove_urr orelse
+       Type =:= remove_qer orelse
+       Type =:= load_control_information orelse
+       Type =:= overload_control_information orelse
+       Type =:= application_id_pfds orelse
+       Type =:= pfd_context orelse
+       Type =:= application_detection_information orelse
+       Type =:= query_urr orelse
+       Type =:= usage_report_smr orelse
+       Type =:= usage_report_sdr orelse
+       Type =:= usage_report_srr orelse
+       Type =:= downlink_data_report orelse
+       Type =:= create_bar orelse
+       Type =:= update_bar_request orelse
+       Type =:= remove_bar orelse
+       Type =:= error_indication_report orelse
+       Type =:= user_plane_path_failure_report orelse
+       Type =:= update_duplicating_parameters ->
+    lager:pr({Type, lager_pr(Group)}, ?MODULE);
+lager_pr(_, Value) ->
+    lager:pr(Value, ?MODULE).
+
+lager_pr(IEs) when is_list(IEs) ->
+    lists:map(lager_pr('Key', _), IEs);
+lager_pr(IEs) when is_map(IEs) ->
+    maps:map(fun lager_pr/2, IEs).
+
 bool2int(false) -> 0;
 bool2int(true)  -> 1.