merge any_signal/signal into resource_signal, dedup

we had duplication there! my bad.

src/client/any_resource.ml

@@ -1,40 +0,0 @@
-open Common_
-open Opentelemetry.Proto
-
-(** A resource *)
-type t =
-  | R_metrics of Metrics.resource_metrics list
-  | R_spans of Trace.resource_spans list
-  | R_logs of Logs.resource_logs list
-
-open struct
-  let of_x_or_empty ?service_name ?attrs ~f l =
-    if l = [] then
-      []
-    else
-      [ f ?service_name ?attrs l ]
-end
-
-let of_logs ?service_name ?attrs logs : t =
-  R_logs [ Util_resources.make_resource_logs ?service_name ?attrs logs ]
-
-let of_logs_or_empty ?service_name ?attrs logs =
-  of_x_or_empty ?service_name ?attrs ~f:of_logs logs
-
-let of_spans ?service_name ?attrs spans : t =
-  R_spans [ Util_resources.make_resource_spans ?service_name ?attrs spans ]
-
-let of_spans_or_empty ?service_name ?attrs spans =
-  of_x_or_empty ?service_name ?attrs ~f:of_spans spans
-
-let of_metrics ?service_name ?attrs m : t =
-  R_metrics [ Util_resources.make_resource_metrics ?service_name ?attrs m ]
-
-let of_metrics_or_empty ?service_name ?attrs ms =
-  of_x_or_empty ?service_name ?attrs ~f:of_metrics ms
-
-let of_signal_l ?service_name ?attrs (s : OTEL.Any_signal_l.t) : t =
-  match s with
-  | Logs logs -> of_logs ?service_name ?attrs logs
-  | Spans sp -> of_spans ?service_name ?attrs sp
-  | Metrics ms -> of_metrics ?service_name ?attrs ms

src/client/consumer.ml

@@ -45,5 +45,5 @@ end
 
 type any_signal_l_builder = OTEL.Any_signal_l.t Builder.t
 
-type any_resource_builder = Any_resource.t Builder.t
+type resource_signal_builder = Resource_signal.t Builder.t
 (** The type that's useful for HTTP backends *)

src/client/generic_http_consumer.ml

@@ -61,14 +61,14 @@ end = struct
 
     let send (self : t) (sigs : OTEL.Any_signal_l.t) : (unit, error) result IO.t
         =
-      let res = Any_resource.of_signal_l sigs in
+      let res = Resource_signal.of_signal_l sigs in
       let url =
         match res with
-        | R_logs _ -> self.config.url_logs
-        | R_spans _ -> self.config.url_traces
-        | R_metrics _ -> self.config.url_metrics
+        | Logs _ -> self.config.url_logs
+        | Traces _ -> self.config.url_traces
+        | Metrics _ -> self.config.url_metrics
       in
-      let data = Signal.Encode.any ~encoder:self.encoder res in
+      let data = Resource_signal.Encode.any ~encoder:self.encoder res in
       Httpc.send self.http ~url ~decode:(`Ret ()) data
   end
 

src/client/resource_signal.ml

@@ -1,17 +1,40 @@
+open Common_
 module Trace_service = Opentelemetry.Proto.Trace_service
 module Metrics_service = Opentelemetry.Proto.Metrics_service
 module Logs_service = Opentelemetry.Proto.Logs_service
 module Span = Opentelemetry.Span
 
-let ( let@ ) = ( @@ )
-
-module Proto = Opentelemetry.Proto
+open struct
+  let of_x_or_empty ?service_name ?attrs ~f l =
+    if l = [] then
+      []
+    else
+      [ f ?service_name ?attrs l ]
+end
 
 type t =
   | Traces of Proto.Trace.resource_spans list
   | Metrics of Proto.Metrics.resource_metrics list
   | Logs of Proto.Logs.resource_logs list
 
+let of_logs ?service_name ?attrs logs : t =
+  Logs [ Util_resources.make_resource_logs ?service_name ?attrs logs ]
+
+let of_logs_or_empty ?service_name ?attrs logs =
+  of_x_or_empty ?service_name ?attrs ~f:of_logs logs
+
+let of_spans ?service_name ?attrs spans : t =
+  Traces [ Util_resources.make_resource_spans ?service_name ?attrs spans ]
+
+let of_spans_or_empty ?service_name ?attrs spans =
+  of_x_or_empty ?service_name ?attrs ~f:of_spans spans
+
+let of_metrics ?service_name ?attrs m : t =
+  Metrics [ Util_resources.make_resource_metrics ?service_name ?attrs m ]
+
+let of_metrics_or_empty ?service_name ?attrs ms =
+  of_x_or_empty ?service_name ?attrs ~f:of_metrics ms
+
 let to_traces = function
   | Traces xs -> Some xs
   | _ -> None
@@ -36,6 +59,12 @@ let is_logs = function
   | Logs _ -> true
   | _ -> false
 
+let of_signal_l ?service_name ?attrs (s : OTEL.Any_signal_l.t) : t =
+  match s with
+  | Logs logs -> of_logs ?service_name ?attrs logs
+  | Spans sp -> of_spans ?service_name ?attrs sp
+  | Metrics ms -> of_metrics ?service_name ?attrs ms
+
 module Encode = struct
   let resource_to_string ~encoder ~ctor ~enc resource : string =
     let encoder =
@@ -78,11 +107,11 @@ module Encode = struct
         Trace_service.make_export_trace_service_request ~resource_spans:r ())
       ~enc:Trace_service.encode_pb_export_trace_service_request
 
-  let any ?encoder (r : Any_resource.t) : string =
+  let any ?encoder (r : t) : string =
     match r with
-    | R_logs l -> logs ?encoder l
-    | R_spans sp -> traces ?encoder sp
-    | R_metrics ms -> metrics ?encoder ms
+    | Logs l -> logs ?encoder l
+    | Traces sp -> traces ?encoder sp
+    | Metrics ms -> metrics ?encoder ms
 end
 
 module Decode = struct

src/client/resource_signal.mli

@@ -1,5 +1,8 @@
 (** Constructing and managing OTel
-    {{:https://opentelemetry.io/docs/concepts/signals/} signals} *)
+    {{:https://opentelemetry.io/docs/concepts/signals/} signals} at the resource
+    (batch) level *)
+
+open Common_
 
 (** The type of signals
 
@@ -11,6 +14,45 @@ type t =
   | Metrics of Opentelemetry_proto.Metrics.resource_metrics list
   | Logs of Opentelemetry_proto.Logs.resource_logs list
 
+val of_logs :
+  ?service_name:string ->
+  ?attrs:OTEL.Key_value.t list ->
+  Proto.Logs.log_record list ->
+  t
+
+val of_logs_or_empty :
+  ?service_name:string ->
+  ?attrs:OTEL.Key_value.t list ->
+  Proto.Logs.log_record list ->
+  t list
+
+val of_spans :
+  ?service_name:string -> ?attrs:OTEL.Key_value.t list -> OTEL.Span.t list -> t
+
+val of_spans_or_empty :
+  ?service_name:string ->
+  ?attrs:OTEL.Key_value.t list ->
+  OTEL.Span.t list ->
+  t list
+
+val of_metrics :
+  ?service_name:string ->
+  ?attrs:OTEL.Key_value.t list ->
+  Proto.Metrics.metric list ->
+  t
+
+val of_metrics_or_empty :
+  ?service_name:string ->
+  ?attrs:OTEL.Key_value.t list ->
+  Proto.Metrics.metric list ->
+  t list
+
+val of_signal_l :
+  ?service_name:string ->
+  ?attrs:OTEL.Key_value.t list ->
+  OTEL.Any_signal_l.t ->
+  t
+
 val to_traces : t -> Opentelemetry_proto.Trace.resource_spans list option
 
 val to_metrics : t -> Opentelemetry_proto.Metrics.resource_metrics list option
@@ -49,7 +91,7 @@ module Encode : sig
 
       @param encoder provide an encoder state to reuse *)
 
-  val any : ?encoder:Pbrt.Encoder.t -> Any_resource.t -> string
+  val any : ?encoder:Pbrt.Encoder.t -> t -> string
 end
 
 (** Decode signals from protobuf encoded strings, received over the wire *)

src/lib/opentelemetry.ml

@@ -45,6 +45,8 @@ let k_span_ctx = Span_ctx.k_span_ctx
 (** {2 Attributes and conventions} *)
 
 module Conventions = Conventions
+module Value = Value
+module Key_value = Key_value
 
 type value = Value.t
 (** A value in a key/value attribute *)

tests/client_e2e/clients_e2e_lib.ml

@@ -6,13 +6,13 @@ module Client = Opentelemetry_client
 module Proto = Opentelemetry.Proto
 open Containers
 
-let batch_size : Client.Signal.t -> int = function
+let batch_size : Client.Resource_signal.t -> int = function
   | Traces ts -> List.length ts
   | Logs ls -> List.length ls
   | Metrics ms -> List.length ms
 
-let avg_batch_size (p : Client.Signal.t -> bool)
-    (batches : Client.Signal.t list) : int =
+let avg_batch_size (p : Client.Resource_signal.t -> bool)
+    (batches : Client.Resource_signal.t list) : int =
   let sum =
     List.fold_left
       (fun acc b ->
@@ -24,7 +24,7 @@ let avg_batch_size (p : Client.Signal.t -> bool)
   in
   sum / List.length batches
 
-let signals_from_batch (signal_batch : Client.Signal.t) =
+let signals_from_batch (signal_batch : Client.Resource_signal.t) =
   match signal_batch with
   | Traces ts -> List.map (fun t -> `Trace t) ts
   | Logs ls -> List.map (fun l -> `Log l) ls

tests/client_e2e/signal_gatherer.ml

@@ -1,7 +1,7 @@
 (* A runs tests against a OTel-instrumented program  *)
 
 module Client = Opentelemetry_client
-module Signal = Client.Signal
+module Signal = Client.Resource_signal
 open Lwt.Syntax
 
 let debug =

tests/client_e2e/signal_gatherer.mli

@@ -2,7 +2,7 @@
     server that can receive the signals make them available for inspection. *)
 
 val gather_signals :
-  ?port:int -> string list -> Opentelemetry_client.Signal.t list Lwt.t
+  ?port:int -> string list -> Opentelemetry_client.Resource_signal.t list Lwt.t
 (** [gather_signals program_to_test] is a list of all the signals emitted by the
     [program_to_test], which the server was able to record. This function
     assumes that the program to test will be sending its signals to the

tests/logs/test_logs_e2e.ml

@@ -9,11 +9,11 @@ let url = Printf.sprintf "http://localhost:%d" port
 
 let cmd = [ "emit_logs_cohttp"; "--url"; url ]
 
-let tests (signal_batches : Client.Signal.t list) =
+let tests (signal_batches : Client.Resource_signal.t list) =
   ignore signal_batches;
   let cur_time = ref 0 in
   List.iter
-    (fun (signal_batch : Client.Signal.t) ->
+    (fun (signal_batch : Client.Resource_signal.t) ->
       match signal_batch with
       | Logs ls ->
         ls (* Mask out the times so tests don't change in between runs *)