Merge pull request #10770 from kjellwinblad/kjell/fix/iotdb_need_to_parse_input_bug/EMQX-9854

fix: IoTDB bridge incoming payload needs to be parsed as JSON

apps/emqx_bridge_iotdb/include/emqx_bridge_iotdb.hrl

@@ -5,7 +5,7 @@
 -ifndef(EMQX_BRIDGE_IOTDB_HRL).
 -define(EMQX_BRIDGE_IOTDB_HRL, true).
 
--define(VSN_1_0_X, 'v1.0.x').
+-define(VSN_1_X, 'v1.x').
 -define(VSN_0_13_X, 'v0.13.x').
 
 -endif.

apps/emqx_bridge_iotdb/src/emqx_bridge_iotdb.app.src

@@ -1,7 +1,7 @@
 %% -*- mode: erlang -*-
 {application, emqx_bridge_iotdb, [
     {description, "EMQX Enterprise Apache IoTDB Bridge"},
-    {vsn, "0.1.0"},
+    {vsn, "0.1.1"},
     {modules, [
         emqx_bridge_iotdb,
         emqx_bridge_iotdb_impl

apps/emqx_bridge_iotdb/src/emqx_bridge_iotdb.erl

@@ -109,10 +109,10 @@ basic_config() ->
             )},
         {iotdb_version,
             mk(
-                hoconsc:enum([?VSN_1_0_X, ?VSN_0_13_X]),
+                hoconsc:enum([?VSN_1_X, ?VSN_0_13_X]),
                 #{
                     desc => ?DESC("config_iotdb_version"),
-                    default => ?VSN_1_0_X
+                    default => ?VSN_1_X
                 }
             )}
     ] ++ resource_creation_opts() ++
@@ -217,7 +217,7 @@ conn_bridge_example(_Method, Type) ->
         is_aligned => false,
         device_id => <<"my_device">>,
         base_url => <<"http://iotdb.local:18080/">>,
-        iotdb_version => ?VSN_1_0_X,
+        iotdb_version => ?VSN_1_X,
         connect_timeout => <<"15s">>,
         pool_type => <<"random">>,
         pool_size => 8,

apps/emqx_bridge_iotdb/src/emqx_bridge_iotdb_impl.erl

@@ -143,24 +143,42 @@ on_query_async(InstanceId, {send_message, Message}, ReplyFunAndArgs0, State) ->
 %% Internal Functions
 %%--------------------------------------------------------------------
 
-preproc_data(DataList) ->
+make_parsed_payload(PayloadUnparsed) when is_binary(PayloadUnparsed) ->
+    emqx_utils_json:decode(PayloadUnparsed, [return_maps]);
+make_parsed_payload(PayloadUnparsed) when is_list(PayloadUnparsed) ->
+    lists:map(fun make_parsed_payload/1, PayloadUnparsed);
+make_parsed_payload(
+    #{
+        measurement := Measurement,
+        data_type := DataType,
+        value := Value
+    } = Data
+) ->
+    Data#{
+        <<"measurement">> => Measurement,
+        <<"data_type">> => DataType,
+        <<"value">> => Value
+    }.
+
+preproc_data(
+    #{
+        <<"measurement">> := Measurement,
+        <<"data_type">> := DataType,
+        <<"value">> := Value
+    } = Data
+) ->
+    #{
+        timestamp => emqx_plugin_libs_rule:preproc_tmpl(
+            maps:get(<<"timestamp">>, Data, <<"now">>)
+        ),
+        measurement => emqx_plugin_libs_rule:preproc_tmpl(Measurement),
+        data_type => DataType,
+        value => emqx_plugin_libs_rule:preproc_tmpl(Value)
+    }.
+
+preproc_data_list(DataList) ->
     lists:map(
-        fun(
-            #{
-                measurement := Measurement,
-                data_type := DataType,
-                value := Value
-            } = Data
-        ) ->
-            #{
-                timestamp => emqx_plugin_libs_rule:preproc_tmpl(
-                    maps:get(<<"timestamp">>, Data, <<"now">>)
-                ),
-                measurement => emqx_plugin_libs_rule:preproc_tmpl(Measurement),
-                data_type => DataType,
-                value => emqx_plugin_libs_rule:preproc_tmpl(Value)
-            }
-        end,
+        fun preproc_data/1,
         DataList
     ).
 
@@ -258,12 +276,13 @@ convert_float(Str) when is_binary(Str) ->
 convert_float(undefined) ->
     null.
 
-make_iotdb_insert_request(Message, State) ->
+make_iotdb_insert_request(MessageUnparsedPayload, State) ->
+    Message = maps:update_with(payload, fun make_parsed_payload/1, MessageUnparsedPayload),
     IsAligned = maps:get(is_aligned, State, false),
     DeviceId = device_id(Message, State),
-    IotDBVsn = maps:get(iotdb_version, State, ?VSN_1_0_X),
+    IotDBVsn = maps:get(iotdb_version, State, ?VSN_1_X),
     Payload = make_list(maps:get(payload, Message)),
-    PreProcessedData = preproc_data(Payload),
+    PreProcessedData = preproc_data_list(Payload),
     DataList = proc_data(PreProcessedData, Message),
     InitAcc = #{timestamps => [], measurements => [], dtypes => [], values => []},
     Rows = replace_dtypes(aggregate_rows(DataList, InitAcc), IotDBVsn),
@@ -330,15 +349,15 @@ insert_value(1, Data, [Value | Values]) ->
 insert_value(Index, Data, [Value | Values]) ->
     [[null | Value] | insert_value(Index - 1, Data, Values)].
 
-iotdb_field_key(is_aligned, ?VSN_1_0_X) ->
+iotdb_field_key(is_aligned, ?VSN_1_X) ->
     <<"is_aligned">>;
 iotdb_field_key(is_aligned, ?VSN_0_13_X) ->
     <<"isAligned">>;
-iotdb_field_key(device_id, ?VSN_1_0_X) ->
+iotdb_field_key(device_id, ?VSN_1_X) ->
     <<"device">>;
 iotdb_field_key(device_id, ?VSN_0_13_X) ->
     <<"deviceId">>;
-iotdb_field_key(data_types, ?VSN_1_0_X) ->
+iotdb_field_key(data_types, ?VSN_1_X) ->
     <<"data_types">>;
 iotdb_field_key(data_types, ?VSN_0_13_X) ->
     <<"dataTypes">>.
@@ -350,6 +369,8 @@ device_id(Message, State) ->
     case maps:get(device_id, State, undefined) of
         undefined ->
             case maps:get(payload, Message) of
+                #{<<"device_id">> := DeviceId} ->
+                    DeviceId;
                 #{device_id := DeviceId} ->
                     DeviceId;
                 _NotFound ->