feat(mesh-phase5): telemetry.proto contract + oneof + contract-lock test

Claude-Session: https://claude.ai/code/session_01GASWkNEi68FSCtvr6rLoEW
2026-07-23 14:58:53 -04:00
parent 094c29d13d
commit a845a6d2fd
4 changed files with 141 additions and 0 deletions
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+syntax = "proto3";
+
+package telemetry.v1;
+
+option csharp_namespace = "ZB.MOM.WW.OtOpcUa.Commons.Protos.Telemetry.V1";
+
+import "google/protobuf/timestamp.proto";
+
+// Per-cluster mesh Phase 5: the four live-telemetry channels that used to fan out over
+// DistributedPubSub (alerts / script-logs / driver-health / driver-resilience-status) now travel over
+// ONE gRPC server-streaming contract. Central dials each driver node and opens Subscribe; the node
+// streams its own live telemetry as a sequence of TelemetryEvent envelopes.
+//
+// Additive-only field evolution: never renumber or reuse a tag; a pre-field peer must read a new
+// field's proto3 default correctly (that is why nullable domain fields are modelled with `optional`
+// for explicit presence). Locked by the contract test in the Commons test project.
+service TelemetryStreamService {
+  rpc Subscribe(TelemetryStreamRequest) returns (stream TelemetryEvent);
+}
+
+message TelemetryStreamRequest {
+  string correlation_id = 1;
+}
+
+message TelemetryEvent {
+  string correlation_id = 1;
+  oneof event {
+    AlarmTransition        alarm_transition  = 2;   // <- "alerts" / AlarmTransitionEvent
+    ScriptLog              script_log        = 3;   // <- "script-logs" / ScriptLogEntry
+    DriverHealth           driver_health     = 4;   // <- "driver-health" / DriverHealthChanged
+    DriverResilienceStatus driver_resilience = 5;   // <- "driver-resilience-status" / DriverResilienceStatusChanged
+  }
+}
+
+// Mirrors ZB.MOM.WW.OtOpcUa.Commons.Messages.Alerts.AlarmTransitionEvent.
+message AlarmTransition {
+  string alarm_id = 1;
+  string equipment_path = 2;
+  string alarm_name = 3;
+  string transition_kind = 4;                             // string in the record (Activated/Cleared/...); kept as string
+  int32 severity = 5;
+  string message = 6;
+  string user = 7;
+  google.protobuf.Timestamp timestamp_utc = 8;
+  string alarm_type_name = 9;                             // record default "AlarmCondition"
+  optional string comment = 10;                           // nullable in the record — presence distinguishes null from ""
+  optional bool historize_to_aveva = 11;                  // bool? in the record — three states (null / true / false)
+  repeated string referencing_equipment_paths = 12;       // null in the record is treated as empty
+}
+
+// Mirrors ZB.MOM.WW.OtOpcUa.Commons.Messages.Logging.ScriptLogEntry.
+message ScriptLog {
+  string script_id = 1;
+  string level = 2;                                       // string in the record (Trace/Debug/Information/...); kept as string
+  string message = 3;
+  google.protobuf.Timestamp timestamp_utc = 4;
+  optional string virtual_tag_id = 5;                     // nullable in the record
+  optional string alarm_id = 6;                           // nullable in the record
+  optional string equipment_id = 7;                       // nullable in the record
+}
+
+// Mirrors ZB.MOM.WW.OtOpcUa.Commons.Messages.Drivers.DriverHealthChanged.
+message DriverHealth {
+  string cluster_id = 1;
+  string driver_instance_id = 2;
+  string state = 3;                                       // DriverState-as-string in the record; kept as string
+  google.protobuf.Timestamp last_successful_read_utc = 4; // DateTime? — absent Timestamp encodes null
+  optional string last_error = 5;                         // nullable in the record
+  int32 error_count_5min = 6;
+  google.protobuf.Timestamp published_utc = 7;
+}
+
+// Mirrors ZB.MOM.WW.OtOpcUa.Commons.Messages.Drivers.DriverResilienceStatusChanged.
+message DriverResilienceStatus {
+  string driver_instance_id = 1;
+  string host_name = 2;
+  bool breaker_open = 3;
+  int32 consecutive_failures = 4;
+  int32 current_in_flight = 5;
+  google.protobuf.Timestamp last_breaker_open_utc = 6;    // DateTime? — absent Timestamp encodes null
+  google.protobuf.Timestamp last_sampled_utc = 7;
+  google.protobuf.Timestamp published_utc = 8;
+}