Allow to configure app wide woody event handlers (#20)

apps/bender/src/bender.erl

@@ -53,6 +53,7 @@ stop(_State) ->
     {ok, {supervisor:sup_flags(), [supervisor:child_spec()]}}.
 
 init([]) ->
+    EventHandlers = bender_utils:get_woody_event_handlers(),
     ChildSpec = woody_server:child_spec(
         ?MODULE,
         #{
@@ -61,12 +62,9 @@ init([]) ->
             protocol_opts     => get_protocol_opts(),
             transport_opts    => get_transport_opts(),
             shutdown_timeout  => get_shutdown_timeout(),
-            event_handler     => [
-                scoper_woody_event_handler,
-                hay_woody_event_handler
-            ],
+            event_handler     => EventHandlers,
             handlers          => [get_handler_spec()],
-            additional_routes => get_routes()
+            additional_routes => get_routes(EventHandlers)
         }
     ),
     {ok, {
@@ -116,12 +114,12 @@ get_handler_spec() ->
         bender_handler
     }}.
 
--spec get_routes() ->
+-spec get_routes(woody:ev_handlers()) ->
     [woody_server_thrift_http_handler:route(_)].
 
-get_routes() ->
+get_routes(EventHandlers) ->
     RouteOptsEnv = genlib_app:env(?MODULE, route_opts, #{}),
-    RouteOpts = RouteOptsEnv#{event_handler => scoper_woody_event_handler},
+    RouteOpts = RouteOptsEnv#{event_handler => EventHandlers},
     Generator = genlib_app:env(bender, generator, #{}),
     Sequence = genlib_app:env(bender, sequence, #{}),
     Handlers = [

apps/bender/src/bender_utils.erl

@@ -2,6 +2,7 @@
 
 -export([unique_id/0]).
 -export([get_backend/2]).
+-export([get_woody_event_handlers/0]).
 
 -type woody_context() :: woody_context:ctx().
 
@@ -40,9 +41,18 @@ get_backend(Service, WoodyCtx) ->
 -spec get_woody_client(automaton()) ->
     machinery_mg_client:woody_client().
 
-get_woody_client(#{url := Url, event_handler := Handler} = Automaton) ->
+get_woody_client(#{url := Url} = Automaton) ->
     genlib_map:compact(#{
         url => Url,
-        event_handler => Handler,
+        event_handler => get_woody_event_handlers(),
         transport_opts => maps:get(transport_opts, Automaton, undefined)
     }).
+
+-spec get_woody_event_handlers() ->
+    woody:ev_handlers().
+
+get_woody_event_handlers() ->
+    genlib_app:env(bender, woody_event_handlers, [
+        scoper_woody_event_handler,
+        hay_woody_event_handler
+    ]).

config/sys.config

@@ -8,10 +8,6 @@
             path          => <<"/v1/stateproc/bender_generator">>,
             schema        => machinery_mg_schema_generic,
             url           => <<"http://machinegun:8022/v1/automaton">>, % mandatory
-            event_handler => [
-                scoper_woody_event_handler,
-                hay_woody_event_handler
-            ],
             transport_opts => #{
                 max_connections => 1000
             }
@@ -21,7 +17,6 @@
             path          => <<"/v1/stateproc/bender_sequence">>,
             schema        => machinery_mg_schema_generic,
             url           => <<"http://machinegun:8022/v1/automaton">>, % mandatory
-            event_handler => scoper_woody_event_handler, % mandatory
             transport_opts => #{
                 max_connections => 1000
             }
@@ -45,6 +40,18 @@
             num_acceptors => 100       % size of acceptors pool, default is 10
         }},
 
+        {woody_event_handlers, [
+            hay_woody_event_handler,
+            {scoper_woody_event_handler, #{
+                event_handler_opts => #{
+                    formatter_opts => #{
+                        max_length => 1000,
+                        max_printable_string_length => 80
+                    }
+                }
+            }}
+        ]},
+
         {health_check, #{
             disk    => {erl_health, disk     , ["/", 99]},
             memory  => {erl_health, cg_memory, [99]},