refactor: move emqx_plugin_libs_metrics to emqx app

because it can not depend on other apps

apps/emqx/src/emqx_authentication.erl

@@ -582,7 +582,7 @@ handle_delete_authenticator(Chain, AuthenticatorID) ->
         [] ->
             {error, {not_found, {authenticator, AuthenticatorID}}};
         [AuthenticatorID] ->
-            emqx_plugin_libs_metrics:clear_metrics(authn_metrics, AuthenticatorID),
+            emqx_metrics_worker:clear_metrics(authn_metrics, AuthenticatorID),
             ok
     end.
 
@@ -613,7 +613,7 @@ handle_create_authenticator(Chain, Config, Providers) ->
                         Chain#chain{authenticators = NAuthenticators}
                     ),
 
-                    ok = emqx_plugin_libs_metrics:create_metrics(
+                    ok = emqx_metrics_worker:create_metrics(
                         authn_metrics,
                         AuthenticatorID,
                         [matched, success, failed, ignore],
@@ -628,10 +628,10 @@ handle_create_authenticator(Chain, Config, Providers) ->
 do_authenticate([], _) ->
     {stop, {error, not_authorized}};
 do_authenticate([#authenticator{id = ID, provider = Provider, state = State} | More], Credential) ->
-    emqx_plugin_libs_metrics:inc(authn_metrics, ID, matched),
+    emqx_metrics_worker:inc(authn_metrics, ID, matched),
     try Provider:authenticate(Credential, State) of
         ignore ->
-            ok = emqx_plugin_libs_metrics:inc(authn_metrics, ID, ignore),
+            ok = emqx_metrics_worker:inc(authn_metrics, ID, ignore),
             do_authenticate(More, Credential);
         Result ->
             %% {ok, Extra}
@@ -641,9 +641,9 @@ do_authenticate([#authenticator{id = ID, provider = Provider, state = State} | M
             %% {error, Reason}
             case Result of
                 {ok, _} ->
-                    emqx_plugin_libs_metrics:inc(authn_metrics, ID, success);
+                    emqx_metrics_worker:inc(authn_metrics, ID, success);
                 {error, _} ->
-                    emqx_plugin_libs_metrics:inc(authn_metrics, ID, failed);
+                    emqx_metrics_worker:inc(authn_metrics, ID, failed);
                 _ ->
                     ok
             end,
@@ -657,7 +657,7 @@ do_authenticate([#authenticator{id = ID, provider = Provider, state = State} | M
                 stacktrace => Stacktrace,
                 authenticator => ID
             }),
-            emqx_plugin_libs_metrics:inc(authn_metrics, ID, ignore),
+            emqx_metrics_worker:inc(authn_metrics, ID, ignore),
             do_authenticate(More, Credential)
     end.
 

apps/emqx/src/emqx_authn_authz_metrics_sup.erl

@@ -26,8 +26,8 @@ start_link() ->
     supervisor:start_link({local, ?MODULE}, ?MODULE, []).
 
 init([]) ->
-    AuthnMetrics = emqx_plugin_libs_metrics:child_spec(emqx_authn_metrics, authn_metrics),
-    AuthzMetrics = emqx_plugin_libs_metrics:child_spec(eqmx_authz_metrics, authz_metrics),
+    AuthnMetrics = emqx_metrics_worker:child_spec(emqx_authn_metrics, authn_metrics),
+    AuthzMetrics = emqx_metrics_worker:child_spec(eqmx_authz_metrics, authz_metrics),
     {ok,
         {
             {one_for_one, 10, 100},

apps/emqx_plugin_libs/src/emqx_plugin_libs_metrics.erl

@@ -14,7 +14,7 @@
 %% limitations under the License.
 %%--------------------------------------------------------------------
 
--module(emqx_plugin_libs_metrics).
+-module(emqx_metrics_worker).
 
 -behaviour(gen_server).
 
@@ -100,16 +100,16 @@
 
 -spec child_spec(handler_name()) -> supervisor:child_spec().
 child_spec(Name) ->
-    child_spec(emqx_plugin_libs_metrics, Name).
+    child_spec(emqx_metrics_worker, Name).
 
 child_spec(ChldName, Name) ->
     #{
         id => ChldName,
-        start => {emqx_plugin_libs_metrics, start_link, [Name]},
+        start => {emqx_metrics_worker, start_link, [Name]},
         restart => permanent,
         shutdown => 5000,
         type => worker,
-        modules => [emqx_plugin_libs_metrics]
+        modules => [emqx_metrics_worker]
     }.
 
 -spec create_metrics(handler_name(), metric_id(), [atom()]) -> ok | {error, term()}.
@@ -284,7 +284,15 @@ terminate(_Reason, #state{metric_ids = MIDs}) ->
     persistent_term:erase(?CntrRef(Name)).
 
 stop(Name) ->
-    gen_server:stop(Name).
+    try
+        gen_server:stop(Name)
+    catch
+        exit:noproc ->
+            ok;
+        exit:timeout ->
+            %% after timeout, the process killed by gen.erl
+            ok
+    end.
 
 %%------------------------------------------------------------------------------
 %% Internal Functions

apps/emqx_plugin_libs/test/emqx_plugin_libs_metrics_SUITE.erl

@@ -14,7 +14,7 @@
 %% limitations under the License.
 %%--------------------------------------------------------------------
 
--module(emqx_plugin_libs_metrics_SUITE).
+-module(emqx_metrics_worker_SUITE).
 
 -compile(export_all).
 -compile(nowarn_export_all).
@@ -31,18 +31,15 @@ suite() ->
 -define(NAME, ?MODULE).
 
 init_per_suite(Config) ->
-    emqx_common_test_helpers:start_apps([emqx_conf]),
-    {ok, _} = emqx_plugin_libs_metrics:start_link(?NAME),
+    {ok, _} = emqx_metrics_worker:start_link(?NAME),
     Config.
 
 end_per_suite(_Config) ->
-    catch emqx_plugin_libs_metrics:stop(?NAME),
-    emqx_common_test_helpers:stop_apps([emqx_conf]),
-    ok.
+    ok = emqx_metrics_worker:stop(?NAME).
 
 init_per_testcase(_, Config) ->
-    catch emqx_plugin_libs_metrics:stop(?NAME),
-    {ok, _} = emqx_plugin_libs_metrics:start_link(?NAME),
+    ok = emqx_metrics_worker:stop(?NAME),
+    {ok, _} = emqx_metrics_worker:start_link(?NAME),
     Config.
 
 end_per_testcase(_, _Config) ->
@@ -50,7 +47,7 @@ end_per_testcase(_, _Config) ->
 
 t_get_metrics(_) ->
     Metrics = [a, b, c],
-    ok = emqx_plugin_libs_metrics:create_metrics(?NAME, <<"testid">>, Metrics),
+    ok = emqx_metrics_worker:create_metrics(?NAME, <<"testid">>, Metrics),
     %% all the metrics are set to zero at start
     ?assertMatch(
         #{
@@ -65,12 +62,12 @@ t_get_metrics(_) ->
                 c := 0
             }
         },
-        emqx_plugin_libs_metrics:get_metrics(?NAME, <<"testid">>)
+        emqx_metrics_worker:get_metrics(?NAME, <<"testid">>)
     ),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, a),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, b),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, c),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, c),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, a),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, b),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, c),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, c),
     ct:sleep(1500),
     ?LET(
         #{
@@ -85,7 +82,7 @@ t_get_metrics(_) ->
                 c := 2
             }
         },
-        emqx_plugin_libs_metrics:get_metrics(?NAME, <<"testid">>),
+        emqx_metrics_worker:get_metrics(?NAME, <<"testid">>),
         {
             ?assert(CurrA > 0),
             ?assert(CurrB > 0),
@@ -95,11 +92,11 @@ t_get_metrics(_) ->
             ?assert(MaxC > 0)
         }
     ),
-    ok = emqx_plugin_libs_metrics:clear_metrics(?NAME, <<"testid">>).
+    ok = emqx_metrics_worker:clear_metrics(?NAME, <<"testid">>).
 
 t_reset_metrics(_) ->
     Metrics = [a, b, c],
-    ok = emqx_plugin_libs_metrics:create_metrics(?NAME, <<"testid">>, Metrics),
+    ok = emqx_metrics_worker:create_metrics(?NAME, <<"testid">>, Metrics),
     %% all the metrics are set to zero at start
     ?assertMatch(
         #{
@@ -114,14 +111,14 @@ t_reset_metrics(_) ->
                 c := 0
             }
         },
-        emqx_plugin_libs_metrics:get_metrics(?NAME, <<"testid">>)
+        emqx_metrics_worker:get_metrics(?NAME, <<"testid">>)
     ),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, a),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, b),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, c),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, c),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, a),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, b),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, c),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, c),
     ct:sleep(1500),
-    ok = emqx_plugin_libs_metrics:reset_metrics(?NAME, <<"testid">>),
+    ok = emqx_metrics_worker:reset_metrics(?NAME, <<"testid">>),
     ?LET(
         #{
             rate := #{
@@ -135,7 +132,7 @@ t_reset_metrics(_) ->
                 c := 0
             }
         },
-        emqx_plugin_libs_metrics:get_metrics(?NAME, <<"testid">>),
+        emqx_metrics_worker:get_metrics(?NAME, <<"testid">>),
         {
             ?assert(CurrA == 0),
             ?assert(CurrB == 0),
@@ -145,19 +142,19 @@ t_reset_metrics(_) ->
             ?assert(MaxC == 0)
         }
     ),
-    ok = emqx_plugin_libs_metrics:clear_metrics(?NAME, <<"testid">>).
+    ok = emqx_metrics_worker:clear_metrics(?NAME, <<"testid">>).
 
 t_get_metrics_2(_) ->
     Metrics = [a, b, c],
-    ok = emqx_plugin_libs_metrics:create_metrics(
+    ok = emqx_metrics_worker:create_metrics(
         ?NAME,
         <<"testid">>,
         Metrics,
         [a]
     ),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, a),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, b),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, c),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, a),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, b),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, c),
     ?assertMatch(
         #{
             rate := Rate = #{
@@ -169,13 +166,13 @@ t_get_metrics_2(_) ->
                 c := 1
             }
         } when map_size(Rate) =:= 1,
-        emqx_plugin_libs_metrics:get_metrics(?NAME, <<"testid">>)
+        emqx_metrics_worker:get_metrics(?NAME, <<"testid">>)
     ),
-    ok = emqx_plugin_libs_metrics:clear_metrics(?NAME, <<"testid">>).
+    ok = emqx_metrics_worker:clear_metrics(?NAME, <<"testid">>).
 
 t_recreate_metrics(_) ->
-    ok = emqx_plugin_libs_metrics:create_metrics(?NAME, <<"testid">>, [a]),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, a),
+    ok = emqx_metrics_worker:create_metrics(?NAME, <<"testid">>, [a]),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, a),
     ?assertMatch(
         #{
             rate := R = #{
@@ -185,12 +182,12 @@ t_recreate_metrics(_) ->
                 a := 1
             }
         } when map_size(R) == 1 andalso map_size(C) == 1,
-        emqx_plugin_libs_metrics:get_metrics(?NAME, <<"testid">>)
+        emqx_metrics_worker:get_metrics(?NAME, <<"testid">>)
     ),
     %% we create the metrics again, to add some counters
-    ok = emqx_plugin_libs_metrics:create_metrics(?NAME, <<"testid">>, [a, b, c]),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, b),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"testid">>, c),
+    ok = emqx_metrics_worker:create_metrics(?NAME, <<"testid">>, [a, b, c]),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, b),
+    ok = emqx_metrics_worker:inc(?NAME, <<"testid">>, c),
     ?assertMatch(
         #{
             rate := R = #{
@@ -202,42 +199,42 @@ t_recreate_metrics(_) ->
                 a := 1, b := 1, c := 1
             }
         } when map_size(R) == 3 andalso map_size(C) == 3,
-        emqx_plugin_libs_metrics:get_metrics(?NAME, <<"testid">>)
+        emqx_metrics_worker:get_metrics(?NAME, <<"testid">>)
     ),
-    ok = emqx_plugin_libs_metrics:clear_metrics(?NAME, <<"testid">>).
+    ok = emqx_metrics_worker:clear_metrics(?NAME, <<"testid">>).
 
 t_inc_matched(_) ->
     Metrics = ['rules.matched'],
-    ok = emqx_plugin_libs_metrics:create_metrics(?NAME, <<"rule1">>, Metrics),
-    ok = emqx_plugin_libs_metrics:create_metrics(?NAME, <<"rule2">>, Metrics),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"rule1">>, 'rules.matched'),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"rule2">>, 'rules.matched'),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"rule2">>, 'rules.matched'),
-    ?assertEqual(1, emqx_plugin_libs_metrics:get(?NAME, <<"rule1">>, 'rules.matched')),
-    ?assertEqual(2, emqx_plugin_libs_metrics:get(?NAME, <<"rule2">>, 'rules.matched')),
-    ?assertEqual(0, emqx_plugin_libs_metrics:get(?NAME, <<"rule3">>, 'rules.matched')),
-    ok = emqx_plugin_libs_metrics:clear_metrics(?NAME, <<"rule1">>),
-    ok = emqx_plugin_libs_metrics:clear_metrics(?NAME, <<"rule2">>).
+    ok = emqx_metrics_worker:create_metrics(?NAME, <<"rule1">>, Metrics),
+    ok = emqx_metrics_worker:create_metrics(?NAME, <<"rule2">>, Metrics),
+    ok = emqx_metrics_worker:inc(?NAME, <<"rule1">>, 'rules.matched'),
+    ok = emqx_metrics_worker:inc(?NAME, <<"rule2">>, 'rules.matched'),
+    ok = emqx_metrics_worker:inc(?NAME, <<"rule2">>, 'rules.matched'),
+    ?assertEqual(1, emqx_metrics_worker:get(?NAME, <<"rule1">>, 'rules.matched')),
+    ?assertEqual(2, emqx_metrics_worker:get(?NAME, <<"rule2">>, 'rules.matched')),
+    ?assertEqual(0, emqx_metrics_worker:get(?NAME, <<"rule3">>, 'rules.matched')),
+    ok = emqx_metrics_worker:clear_metrics(?NAME, <<"rule1">>),
+    ok = emqx_metrics_worker:clear_metrics(?NAME, <<"rule2">>).
 
 t_rate(_) ->
-    ok = emqx_plugin_libs_metrics:create_metrics(?NAME, <<"rule1">>, ['rules.matched']),
-    ok = emqx_plugin_libs_metrics:create_metrics(?NAME, <<"rule:2">>, ['rules.matched']),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"rule1">>, 'rules.matched'),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"rule1">>, 'rules.matched'),
-    ok = emqx_plugin_libs_metrics:inc(?NAME, <<"rule:2">>, 'rules.matched'),
-    ?assertEqual(2, emqx_plugin_libs_metrics:get(?NAME, <<"rule1">>, 'rules.matched')),
+    ok = emqx_metrics_worker:create_metrics(?NAME, <<"rule1">>, ['rules.matched']),
+    ok = emqx_metrics_worker:create_metrics(?NAME, <<"rule:2">>, ['rules.matched']),
+    ok = emqx_metrics_worker:inc(?NAME, <<"rule1">>, 'rules.matched'),
+    ok = emqx_metrics_worker:inc(?NAME, <<"rule1">>, 'rules.matched'),
+    ok = emqx_metrics_worker:inc(?NAME, <<"rule:2">>, 'rules.matched'),
+    ?assertEqual(2, emqx_metrics_worker:get(?NAME, <<"rule1">>, 'rules.matched')),
     ct:sleep(1000),
     ?LET(
         #{'rules.matched' := #{max := Max, current := Current}},
-        emqx_plugin_libs_metrics:get_rate(?NAME, <<"rule1">>),
+        emqx_metrics_worker:get_rate(?NAME, <<"rule1">>),
         {?assert(Max =< 2), ?assert(Current =< 2)}
     ),
     ct:sleep(2100),
     ?LET(
         #{'rules.matched' := #{max := Max, current := Current, last5m := Last5Min}},
-        emqx_plugin_libs_metrics:get_rate(?NAME, <<"rule1">>),
+        emqx_metrics_worker:get_rate(?NAME, <<"rule1">>),
         {?assert(Max =< 2), ?assert(Current == 0), ?assert(Last5Min =< 0.67)}
     ),
     ct:sleep(3000),
-    ok = emqx_plugin_libs_metrics:clear_metrics(?NAME, <<"rule1">>),
-    ok = emqx_plugin_libs_metrics:clear_metrics(?NAME, <<"rule:2">>).
+    ok = emqx_metrics_worker:clear_metrics(?NAME, <<"rule1">>),
+    ok = emqx_metrics_worker:clear_metrics(?NAME, <<"rule:2">>).

apps/emqx_authn/src/emqx_authn_api.erl

@@ -943,7 +943,7 @@ lookup_from_local_node(ChainName, AuthenticatorID) ->
     NodeId = node(self()),
     case emqx_authentication:lookup_authenticator(ChainName, AuthenticatorID) of
         {ok, #{provider := Provider, state := State}} ->
-            Metrics = emqx_plugin_libs_metrics:get_metrics(authn_metrics, AuthenticatorID),
+            Metrics = emqx_metrics_worker:get_metrics(authn_metrics, AuthenticatorID),
             case lists:member(Provider, resource_provider()) of
                 false ->
                     {ok, {NodeId, connected, Metrics, #{}}};

apps/emqx_plugin_libs/src/proto/emqx_plugin_libs_proto_v1.erl

@@ -31,8 +31,8 @@ introduced_in() ->
 
 -spec get_metrics(
     node(),
-    emqx_plugin_libs_metrics:handler_name(),
-    emqx_plugin_libs_metrics:metric_id()
-) -> emqx_plugin_libs_metrics:metrics() | {badrpc, _}.
+    emqx_metrics_worker:handler_name(),
+    emqx_metrics_worker:metric_id()
+) -> emqx_metrics_worker:metrics() | {badrpc, _}.
 get_metrics(Node, HandlerName, MetricId) ->
-    rpc:call(Node, emqx_plugin_libs_metrics, get_metrics, [HandlerName, MetricId]).
+    rpc:call(Node, emqx_metrics_worker, get_metrics, [HandlerName, MetricId]).

apps/emqx_resource/include/emqx_resource.hrl

@@ -27,7 +27,7 @@
     config := resource_config(),
     state := resource_state(),
     status := resource_connection_status(),
-    metrics := emqx_plugin_libs_metrics:metrics()
+    metrics := emqx_metrics_worker:metrics()
 }.
 -type resource_group() :: binary().
 -type create_opts() :: #{

apps/emqx_resource/src/emqx_resource.erl

@@ -250,12 +250,12 @@ query(InstId, Request, AfterQuery) ->
         {ok, _Group, #{mod := Mod, state := ResourceState, status := connected}} ->
             %% the resource state is readonly to Module:on_query/4
             %% and the `after_query()` functions should be thread safe
-            ok = emqx_plugin_libs_metrics:inc(resource_metrics, InstId, matched),
+            ok = emqx_metrics_worker:inc(resource_metrics, InstId, matched),
             try
                 Mod:on_query(InstId, Request, AfterQuery, ResourceState)
             catch
                 Err:Reason:ST ->
-                    emqx_plugin_libs_metrics:inc(resource_metrics, InstId, exception),
+                    emqx_metrics_worker:inc(resource_metrics, InstId, exception),
                     erlang:raise(Err, Reason, ST)
             end;
         {error, not_found} ->
@@ -418,8 +418,8 @@ filter_instances(Filter) ->
     [Id || #{id := Id, mod := Mod} <- list_instances_verbose(), Filter(Id, Mod)].
 
 inc_metrics_funcs(InstId) ->
-    OnFailed = [{fun emqx_plugin_libs_metrics:inc/3, [resource_metrics, InstId, failed]}],
-    OnSucc = [{fun emqx_plugin_libs_metrics:inc/3, [resource_metrics, InstId, success]}],
+    OnFailed = [{fun emqx_metrics_worker:inc/3, [resource_metrics, InstId, failed]}],
+    OnSucc = [{fun emqx_metrics_worker:inc/3, [resource_metrics, InstId, success]}],
     {OnSucc, OnFailed}.
 
 call_instance(InstId, Query) ->

apps/emqx_resource/src/emqx_resource_instance.erl

@@ -82,10 +82,10 @@ make_test_id() ->
     <<?TEST_ID_PREFIX, RandId/binary>>.
 
 get_metrics(InstId) ->
-    emqx_plugin_libs_metrics:get_metrics(resource_metrics, InstId).
+    emqx_metrics_worker:get_metrics(resource_metrics, InstId).
 
 reset_metrics(InstId) ->
-    emqx_plugin_libs_metrics:reset_metrics(resource_metrics, InstId).
+    emqx_metrics_worker:reset_metrics(resource_metrics, InstId).
 
 force_lookup(InstId) ->
     {ok, _Group, Data} = lookup(InstId),
@@ -200,7 +200,7 @@ do_create(InstId, Group, ResourceType, Config, Opts) ->
             {ok, already_created};
         {error, not_found} ->
             ok = do_start(InstId, Group, ResourceType, Config, Opts),
-            ok = emqx_plugin_libs_metrics:create_metrics(
+            ok = emqx_metrics_worker:create_metrics(
                 resource_metrics,
                 InstId,
                 [matched, success, failed, exception],
@@ -243,7 +243,7 @@ do_remove(Group, #{id := InstId} = Data, ClearMetrics) ->
     _ = do_stop(Group, Data),
     ets:delete(emqx_resource_instance, InstId),
     case ClearMetrics of
-        true -> ok = emqx_plugin_libs_metrics:clear_metrics(resource_metrics, InstId);
+        true -> ok = emqx_metrics_worker:clear_metrics(resource_metrics, InstId);
         false -> ok
     end,
     ok.

apps/emqx_resource/src/emqx_resource_sup.erl

@@ -33,7 +33,7 @@ init([]) ->
     _ = ets:new(emqx_resource_instance, TabOpts),
 
     SupFlags = #{strategy => one_for_one, intensity => 10, period => 10},
-    Metrics = emqx_plugin_libs_metrics:child_spec(resource_metrics),
+    Metrics = emqx_metrics_worker:child_spec(resource_metrics),
 
     Pool = ?RESOURCE_INST_MOD,
     Mod = ?RESOURCE_INST_MOD,

apps/emqx_rule_engine/src/emqx_rule_engine.erl

@@ -214,19 +214,19 @@ load_hooks_for_rule(#{from := Topics}) ->
     lists:foreach(fun emqx_rule_events:load/1, Topics).
 
 maybe_add_metrics_for_rule(Id) ->
-    case emqx_plugin_libs_metrics:has_metrics(rule_metrics, Id) of
+    case emqx_metrics_worker:has_metrics(rule_metrics, Id) of
         true ->
             ok;
         false ->
-            ok = emqx_plugin_libs_metrics:create_metrics(rule_metrics, Id, ?METRICS, ?RATE_METRICS)
+            ok = emqx_metrics_worker:create_metrics(rule_metrics, Id, ?METRICS, ?RATE_METRICS)
     end.
 
 clear_metrics_for_rule(Id) ->
-    ok = emqx_plugin_libs_metrics:clear_metrics(rule_metrics, Id).
+    ok = emqx_metrics_worker:clear_metrics(rule_metrics, Id).
 
 -spec reset_metrics_for_rule(rule_id()) -> ok.
 reset_metrics_for_rule(Id) ->
-    emqx_plugin_libs_metrics:reset_metrics(rule_metrics, Id).
+    emqx_metrics_worker:reset_metrics(rule_metrics, Id).
 
 unload_hooks_for_rule(#{id := Id, from := Topics}) ->
     lists:foreach(

apps/emqx_rule_engine/src/emqx_rule_engine_sup.erl

@@ -36,5 +36,5 @@ init([]) ->
         type => worker,
         modules => [emqx_rule_engine]
     },
-    Metrics = emqx_plugin_libs_metrics:child_spec(rule_metrics),
+    Metrics = emqx_metrics_worker:child_spec(rule_metrics),
     {ok, {{one_for_one, 10, 10}, [Registry, Metrics]}}.

apps/emqx_rule_engine/src/emqx_rule_runtime.erl

@@ -64,14 +64,14 @@ apply_rule_discard_result(Rule, Input) ->
     ok.
 
 apply_rule(Rule = #{id := RuleID}, Input) ->
-    ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleID, 'sql.matched'),
+    ok = emqx_metrics_worker:inc(rule_metrics, RuleID, 'sql.matched'),
     clear_rule_payload(),
     try
         do_apply_rule(Rule, add_metadata(Input, #{rule_id => RuleID}))
     catch
         %% ignore the errors if select or match failed
         _:Reason = {select_and_transform_error, Error} ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleID, 'sql.failed.exception'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleID, 'sql.failed.exception'),
             ?SLOG(warning, #{
                 msg => "SELECT_clause_exception",
                 rule_id => RuleID,
@@ -79,7 +79,7 @@ apply_rule(Rule = #{id := RuleID}, Input) ->
             }),
             {error, Reason};
         _:Reason = {match_conditions_error, Error} ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleID, 'sql.failed.exception'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleID, 'sql.failed.exception'),
             ?SLOG(warning, #{
                 msg => "WHERE_clause_exception",
                 rule_id => RuleID,
@@ -87,7 +87,7 @@ apply_rule(Rule = #{id := RuleID}, Input) ->
             }),
             {error, Reason};
         _:Reason = {select_and_collect_error, Error} ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleID, 'sql.failed.exception'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleID, 'sql.failed.exception'),
             ?SLOG(warning, #{
                 msg => "FOREACH_clause_exception",
                 rule_id => RuleID,
@@ -95,7 +95,7 @@ apply_rule(Rule = #{id := RuleID}, Input) ->
             }),
             {error, Reason};
         _:Reason = {match_incase_error, Error} ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleID, 'sql.failed.exception'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleID, 'sql.failed.exception'),
             ?SLOG(warning, #{
                 msg => "INCASE_clause_exception",
                 rule_id => RuleID,
@@ -103,7 +103,7 @@ apply_rule(Rule = #{id := RuleID}, Input) ->
             }),
             {error, Reason};
         Class:Error:StkTrace ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleID, 'sql.failed.exception'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleID, 'sql.failed.exception'),
             ?SLOG(error, #{
                 msg => "apply_rule_failed",
                 rule_id => RuleID,
@@ -141,13 +141,13 @@ do_apply_rule(
             Collection2 = filter_collection(Input, InCase, DoEach, Collection),
             case Collection2 of
                 [] ->
-                    ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'sql.failed.no_result');
+                    ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'sql.failed.no_result');
                 _ ->
-                    ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'sql.passed')
+                    ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'sql.passed')
             end,
             {ok, [handle_output_list(RuleId, Outputs, Coll, Input) || Coll <- Collection2]};
         false ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'sql.failed.no_result'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'sql.failed.no_result'),
             {error, nomatch}
     end;
 do_apply_rule(
@@ -171,10 +171,10 @@ do_apply_rule(
         )
     of
         true ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'sql.passed'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'sql.passed'),
             {ok, handle_output_list(RuleId, Outputs, Selected, Input)};
         false ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'sql.failed.no_result'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'sql.failed.no_result'),
             {error, nomatch}
     end.
 
@@ -316,21 +316,21 @@ handle_output_list(RuleId, Outputs, Selected, Envs) ->
     [handle_output(RuleId, Out, Selected, Envs) || Out <- Outputs].
 
 handle_output(RuleId, OutId, Selected, Envs) ->
-    ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'outputs.total'),
+    ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'outputs.total'),
     try
         Result = do_handle_output(OutId, Selected, Envs),
-        ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'outputs.success'),
+        ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'outputs.success'),
         Result
     catch
         throw:out_of_service ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'outputs.failed'),
-            ok = emqx_plugin_libs_metrics:inc(
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'outputs.failed'),
+            ok = emqx_metrics_worker:inc(
                 rule_metrics, RuleId, 'outputs.failed.out_of_service'
             ),
             ?SLOG(warning, #{msg => "out_of_service", output => OutId});
         Err:Reason:ST ->
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'outputs.failed'),
-            ok = emqx_plugin_libs_metrics:inc(rule_metrics, RuleId, 'outputs.failed.unknown'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'outputs.failed'),
+            ok = emqx_metrics_worker:inc(rule_metrics, RuleId, 'outputs.failed.unknown'),
             ?SLOG(error, #{
                 msg => "output_failed",
                 output => OutId,