fix(rule): reformat some code

* fix(rule): reformat some code for rule-engine

* fix(lwm2m): change publish_update_when to publish_update_msg_when

Change the option name publish_update_when -> publish_update_msg_when.

Also change the object_list_changed to contains_object_list, as the
the later describes the default behavior correctly.

* fix(lwm2m): publish_update_msg_when -> update_msg_publish_condition

apps/emqx_lwm2m/etc/emqx_lwm2m.conf

@@ -44,11 +44,11 @@ lwm2m.topics.update = up/resp
 # When publish the update message.
 #
 # Can be one of:
-#  - object_list_changed: only if the object list is changed
+#  - contains_object_list: only if the update message contains object list
 #  - always: always publish the update message
 #
-# Defaults to object_list_changed
-#lwm2m.publish_update_when = object_list_changed
+# Defaults to contains_object_list
+#lwm2m.update_msg_publish_condition = contains_object_list
 
 # Dir where the object definition files can be found
 lwm2m.xml_dir =  {{ platform_etc_dir }}/lwm2m_xml

apps/emqx_lwm2m/priv/emqx_lwm2m.schema

@@ -112,9 +112,9 @@ end}.
   {default, "lwm2m/%e/up/resp"}
 ]}.
 
-{mapping, "lwm2m.publish_update_when", "emqx_lwm2m.publish_update_when", [
-  {datatype, {enum, [object_list_changed, always]}},
-  {default, object_list_changed}
+{mapping, "lwm2m.update_msg_publish_condition", "emqx_lwm2m.update_msg_publish_condition", [
+  {datatype, {enum, [contains_object_list, always]}},
+  {default, contains_object_list}
 ]}.
 
 {translation, "emqx_lwm2m.topics", fun(Conf) ->

apps/emqx_lwm2m/src/emqx_lwm2m_coap_server.erl

@@ -101,12 +101,12 @@ get_lwm2m_opts(Envs) ->
     AutoObserve = proplists:get_value(auto_observe, Envs, []),
     QmodeTimeWindow = proplists:get_value(qmode_time_window, Envs, []),
     Topics = proplists:get_value(topics, Envs, []),
-    PublishUpdateWhen = proplists:get_value(publish_update_when, Envs, object_list_changed),
+    PublishCondition = proplists:get_value(update_msg_publish_condition, Envs, contains_object_list),
     [{lifetime_max, LifetimeMax},
      {lifetime_min, LifetimeMin},
      {mountpoint, list_to_binary(Mountpoint)},
      {port, Sockport},
      {auto_observe, AutoObserve},
      {qmode_time_window, QmodeTimeWindow},
-     {publish_update_when, PublishUpdateWhen},
+     {update_msg_publish_condition, PublishCondition},
      {topics, Topics}].

apps/emqx_lwm2m/src/emqx_lwm2m_protocol.erl

@@ -121,11 +121,11 @@ update_reg_info(NewRegInfo, Lwm2mState = #lwm2m_state{
 
     UpdatedRegInfo = maps:merge(RegInfo, NewRegInfo),
 
-    case proplists:get_value(publish_update_when,
-            lwm2m_coap_responder:options(), object_list_changed) of
+    case proplists:get_value(update_msg_publish_condition,
+            lwm2m_coap_responder:options(), contains_object_list) of
         always ->
             send_to_broker(<<"update">>, #{<<"data">> => UpdatedRegInfo}, Lwm2mState);
-        object_list_changed ->
+        contains_object_list ->
             %% - report the registration info update, but only when objectList is updated.
             case NewRegInfo of
                 #{<<"objectList">> := _} ->

apps/emqx_rule_engine/src/emqx_rule_engine.erl

@@ -269,16 +269,10 @@ do_update_resource_check(Id, NewParams) ->
                        config = OldConfig,
                        description = OldDescription} = _OldResource} ->
             try
-                do_update_resource(#{id => Id,
-                                     config => case maps:find(<<"config">>, NewParams) of
-                                                    {ok, NewConfig} -> NewConfig;
-                                                    error -> OldConfig
-                                               end,
-                                     type => Type,
-                                     description => case maps:find(<<"description">>, NewParams) of
-                                                         {ok, NewDescription} -> NewDescription;
-                                                         error -> OldDescription
-                                                    end}),
+                Conifg = maps:get(<<"config">>, NewParams, OldConfig),
+                Descr = maps:get(<<"description">>, NewParams, OldDescription),
+                do_update_resource(#{id => Id, config => Conifg, type => Type,
+                                     description => Descr}),
                 ok
             catch _ : Reason ->
                 {error, Reason}
@@ -294,11 +288,13 @@ do_update_resource(#{id := Id, type := Type, description := NewDescription, conf
             Config = emqx_rule_validator:validate_params(NewConfig, ParamSpec),
             case test_resource(#{type => Type, config => NewConfig}) of
                 ok ->
-                    Resource = #resource{id = Id,
+                    Resource = #resource{
+                        id = Id,
                         type = Type,
                         config = Config,
                         description = NewDescription,
-                                         created_at = erlang:system_time(millisecond)},
+                        created_at = erlang:system_time(millisecond)
+                    },
                     cluster_call(init_resource, [Module, Create, Id, Config]),
                     emqx_rule_registry:add_resource(Resource);
                {error, Reason} ->
@@ -468,18 +464,19 @@ may_update_rule_params(Rule, Params = #{rawsql := SQL}) ->
                 maps:remove(rawsql, Params));
         Reason -> throw(Reason)
     end;
-may_update_rule_params(Rule = #rule{enabled = OldE, actions = Actions},
-         Params = #{enabled := ToE}) ->
-     case {OldE, ToE} of
+may_update_rule_params(Rule = #rule{enabled = OldEnb, actions = Actions},
+         Params = #{enabled := NewEnb}) ->
+     case {OldEnb, NewEnb} of
          {false, true} -> refresh_rule(Rule);
          {true, false} -> clear_actions(Actions);
          _ -> ok
      end,
-     may_update_rule_params(Rule#rule{enabled = ToE}, maps:remove(enabled, Params));
+     may_update_rule_params(Rule#rule{enabled = NewEnb}, maps:remove(enabled, Params));
 may_update_rule_params(Rule, Params = #{description := Descr}) ->
     may_update_rule_params(Rule#rule{description = Descr}, maps:remove(description, Params));
 may_update_rule_params(Rule, Params = #{on_action_failed := OnFailed}) ->
-    may_update_rule_params(Rule#rule{on_action_failed = OnFailed}, maps:remove(on_action_failed, Params));
+    may_update_rule_params(Rule#rule{on_action_failed = OnFailed},
+        maps:remove(on_action_failed, Params));
 may_update_rule_params(Rule = #rule{actions = OldActions}, Params = #{actions := Actions}) ->
     %% prepare new actions before removing old ones
     NewActions = prepare_actions(Actions, maps:get(enabled, Params, true)),